diff --git a/mk/boards.mk b/mk/boards.mk
index ee226b2..a1ce6b8 100644
--- a/mk/boards.mk
+++ b/mk/boards.mk
@@ -56,6 +56,8 @@ SRCS+= \
stm32f1xx_hal_gpio.c \
stm32f1xx_hal_pcd.c \
stm32f1xx_hal_pcd_ex.c \
+ stm32f1xx_hal_rcc.c \
+ stm32f1xx_hal_rcc_ex.c \
stm32f1xx_ll_usb.c \
system_stm32f1xx.c
diff --git a/rs485hid/Makefile b/rs485hid/Makefile
index 0a5f365..201f7f4 100644
--- a/rs485hid/Makefile
+++ b/rs485hid/Makefile
@@ -29,6 +29,7 @@ SRCS.rs485gw+= misc.c
.PATH: $(.CURDIR)/..
+CFLAGS += -g
CFLAGS += -I$(.CURDIR)/..
WITH_STM32F103 = yes
diff --git a/rs485hid/rs485gw.c b/rs485hid/rs485gw.c
index 69b5472..accecce 100644
--- a/rs485hid/rs485gw.c
+++ b/rs485hid/rs485gw.c
@@ -36,7 +36,7 @@
SYSINIT(hal_init, SI_SUB_HAL, SI_ORDER_FIRST, (void (*)(const void *))HAL_Init, NULL);
-void
+static void
clkenable(const void *none)
{
GPIO_InitTypeDef GPIO_InitStruct;
@@ -56,7 +56,7 @@ clkenable(const void *none)
}
SYSINIT(clkenable, SI_SUB_HAL, SI_ORDER_SECOND, clkenable, NULL);
-void
+static void
oscconfig(const void *none)
{
RCC_ClkInitTypeDef clkinitstruct;
diff --git a/stm32/.srcs b/stm32/.srcs
index 89261db..5d3c192 100644
--- a/stm32/.srcs
+++ b/stm32/.srcs
@@ -23,7 +23,9 @@ f103c8t6/stm32f1xx_hal_gpio_ex.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/st
f103c8t6/stm32f1xx_hal_pwr.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pwr.h
f103c8t6/stm32f1xx_hal_pcd.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pcd.h
f103c8t6/stm32f1xx_hal_pcd_ex.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_pcd_ex.h
+f103c8t6/stm32f1xx_hal_rcc.c STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c
f103c8t6/stm32f1xx_hal_rcc.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc.h
+f103c8t6/stm32f1xx_hal_rcc_ex.c STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c
f103c8t6/stm32f1xx_hal_rcc_ex.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rcc_ex.h
f103c8t6/stm32f1xx_hal_rtc.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rtc.h
f103c8t6/stm32f1xx_hal_rtc_ex.h STM32CubeF1 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_rtc_ex.h
diff --git a/stm32/f103c8t6/STM32F103C8T6_FLASH.ld b/stm32/f103c8t6/STM32F103C8T6_FLASH.ld
index c85f6fd..2d1f0d6 100755
--- a/stm32/f103c8t6/STM32F103C8T6_FLASH.ld
+++ b/stm32/f103c8t6/STM32F103C8T6_FLASH.ld
@@ -96,6 +96,10 @@ SECTIONS
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
+ . = ALIGN(4);
+ __start_set_sysinit_set = .;
+ KEEP(*(set_sysinit_set)) /* sysinit linker sets */
+ __stop_set_sysinit_set = .;
. = ALIGN(4);
} >FLASH
diff --git a/stm32/f103c8t6/stm32f1xx_hal_rcc.c b/stm32/f103c8t6/stm32f1xx_hal_rcc.c
new file mode 100644
index 0000000..fb3c5be
--- /dev/null
+++ b/stm32/f103c8t6/stm32f1xx_hal_rcc.c
@@ -0,0 +1,1403 @@
+/**
+ ******************************************************************************
+ * @file stm32f1xx_hal_rcc.c
+ * @author MCD Application Team
+ * @brief RCC HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Reset and Clock Control (RCC) peripheral:
+ * + Initialization and de-initialization functions
+ * + Peripheral Control functions
+ *
+ @verbatim
+ ==============================================================================
+ ##### RCC specific features #####
+ ==============================================================================
+ [..]
+ After reset the device is running from Internal High Speed oscillator
+ (HSI 8MHz) with Flash 0 wait state, Flash prefetch buffer is enabled,
+ and all peripherals are off except internal SRAM, Flash and JTAG.
+ (+) There is no prescaler on High speed (AHB) and Low speed (APB) buses;
+ all peripherals mapped on these buses are running at HSI speed.
+ (+) The clock for all peripherals is switched off, except the SRAM and FLASH.
+ (+) All GPIOs are in input floating state, except the JTAG pins which
+ are assigned to be used for debug purpose.
+ [..] Once the device started from reset, the user application has to:
+ (+) Configure the clock source to be used to drive the System clock
+ (if the application needs higher frequency/performance)
+ (+) Configure the System clock frequency and Flash settings
+ (+) Configure the AHB and APB buses prescalers
+ (+) Enable the clock for the peripheral(s) to be used
+ (+) Configure the clock source(s) for peripherals whose clocks are not
+ derived from the System clock (I2S, RTC, ADC, USB OTG FS)
+
+ ##### RCC Limitations #####
+ ==============================================================================
+ [..]
+ A delay between an RCC peripheral clock enable and the effective peripheral
+ enabling should be taken into account in order to manage the peripheral read/write
+ from/to registers.
+ (+) This delay depends on the peripheral mapping.
+ (++) AHB & APB peripherals, 1 dummy read is necessary
+
+ [..]
+ Workarounds:
+ (#) For AHB & APB peripherals, a dummy read to the peripheral register has been
+ inserted in each __HAL_RCC_PPP_CLK_ENABLE() macro.
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * © Copyright (c) 2016 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup RCC RCC
+* @brief RCC HAL module driver
+ * @{
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup RCC_Private_Constants RCC Private Constants
+ * @{
+ */
+/**
+ * @}
+ */
+/* Private macro -------------------------------------------------------------*/
+/** @defgroup RCC_Private_Macros RCC Private Macros
+ * @{
+ */
+
+#define MCO1_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE()
+#define MCO1_GPIO_PORT GPIOA
+#define MCO1_PIN GPIO_PIN_8
+
+/**
+ * @}
+ */
+
+/* Private variables ---------------------------------------------------------*/
+/** @defgroup RCC_Private_Variables RCC Private Variables
+ * @{
+ */
+/**
+ * @}
+ */
+
+/* Private function prototypes -----------------------------------------------*/
+static void RCC_Delay(uint32_t mdelay);
+
+/* Exported functions --------------------------------------------------------*/
+
+/** @defgroup RCC_Exported_Functions RCC Exported Functions
+ * @{
+ */
+
+/** @defgroup RCC_Exported_Functions_Group1 Initialization and de-initialization functions
+ * @brief Initialization and Configuration functions
+ *
+ @verbatim
+ ===============================================================================
+ ##### Initialization and de-initialization functions #####
+ ===============================================================================
+ [..]
+ This section provides functions allowing to configure the internal/external oscillators
+ (HSE, HSI, LSE, LSI, PLL, CSS and MCO) and the System buses clocks (SYSCLK, AHB, APB1
+ and APB2).
+
+ [..] Internal/external clock and PLL configuration
+ (#) HSI (high-speed internal), 8 MHz factory-trimmed RC used directly or through
+ the PLL as System clock source.
+ (#) LSI (low-speed internal), ~40 KHz low consumption RC used as IWDG and/or RTC
+ clock source.
+
+ (#) HSE (high-speed external), 4 to 24 MHz (STM32F100xx) or 4 to 16 MHz (STM32F101x/STM32F102x/STM32F103x) or 3 to 25 MHz (STM32F105x/STM32F107x) crystal oscillator used directly or
+ through the PLL as System clock source. Can be used also as RTC clock source.
+
+ (#) LSE (low-speed external), 32 KHz oscillator used as RTC clock source.
+
+ (#) PLL (clocked by HSI or HSE), featuring different output clocks:
+ (++) The first output is used to generate the high speed system clock (up to 72 MHz for STM32F10xxx or up to 24 MHz for STM32F100xx)
+ (++) The second output is used to generate the clock for the USB OTG FS (48 MHz)
+
+ (#) CSS (Clock security system), once enable using the macro __HAL_RCC_CSS_ENABLE()
+ and if a HSE clock failure occurs(HSE used directly or through PLL as System
+ clock source), the System clocks automatically switched to HSI and an interrupt
+ is generated if enabled. The interrupt is linked to the Cortex-M3 NMI
+ (Non-Maskable Interrupt) exception vector.
+
+ (#) MCO1 (microcontroller clock output), used to output SYSCLK, HSI,
+ HSE or PLL clock (divided by 2) on PA8 pin + PLL2CLK, PLL3CLK/2, PLL3CLK and XTI for STM32F105x/STM32F107x
+
+ [..] System, AHB and APB buses clocks configuration
+ (#) Several clock sources can be used to drive the System clock (SYSCLK): HSI,
+ HSE and PLL.
+ The AHB clock (HCLK) is derived from System clock through configurable
+ prescaler and used to clock the CPU, memory and peripherals mapped
+ on AHB bus (DMA, GPIO...). APB1 (PCLK1) and APB2 (PCLK2) clocks are derived
+ from AHB clock through configurable prescalers and used to clock
+ the peripherals mapped on these buses. You can use
+ "@ref HAL_RCC_GetSysClockFreq()" function to retrieve the frequencies of these clocks.
+
+ -@- All the peripheral clocks are derived from the System clock (SYSCLK) except:
+ (+@) RTC: RTC clock can be derived either from the LSI, LSE or HSE clock
+ divided by 128.
+ (+@) USB OTG FS and RTC: USB OTG FS require a frequency equal to 48 MHz
+ to work correctly. This clock is derived of the main PLL through PLL Multiplier.
+ (+@) I2S interface on STM32F105x/STM32F107x can be derived from PLL3CLK
+ (+@) IWDG clock which is always the LSI clock.
+
+ (#) For STM32F10xxx, the maximum frequency of the SYSCLK and HCLK/PCLK2 is 72 MHz, PCLK1 36 MHz.
+ For STM32F100xx, the maximum frequency of the SYSCLK and HCLK/PCLK1/PCLK2 is 24 MHz.
+ Depending on the SYSCLK frequency, the flash latency should be adapted accordingly.
+ @endverbatim
+ * @{
+ */
+
+/*
+ Additional consideration on the SYSCLK based on Latency settings:
+ +-----------------------------------------------+
+ | Latency | SYSCLK clock frequency (MHz) |
+ |---------------|-------------------------------|
+ |0WS(1CPU cycle)| 0 < SYSCLK <= 24 |
+ |---------------|-------------------------------|
+ |1WS(2CPU cycle)| 24 < SYSCLK <= 48 |
+ |---------------|-------------------------------|
+ |2WS(3CPU cycle)| 48 < SYSCLK <= 72 |
+ +-----------------------------------------------+
+ */
+
+/**
+ * @brief Resets the RCC clock configuration to the default reset state.
+ * @note The default reset state of the clock configuration is given below:
+ * - HSI ON and used as system clock source
+ * - HSE, PLL, PLL2 and PLL3 are OFF
+ * - AHB, APB1 and APB2 prescaler set to 1.
+ * - CSS and MCO1 OFF
+ * - All interrupts disabled
+ * - All flags are cleared
+ * @note This function does not modify the configuration of the
+ * - Peripheral clocks
+ * - LSI, LSE and RTC clocks
+ * @retval HAL_StatusTypeDef
+ */
+HAL_StatusTypeDef HAL_RCC_DeInit(void)
+{
+ uint32_t tickstart;
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Set HSION bit */
+ SET_BIT(RCC->CR, RCC_CR_HSION);
+
+ /* Wait till HSI is ready */
+ while (READ_BIT(RCC->CR, RCC_CR_HSIRDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSI_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Set HSITRIM bits to the reset value */
+ MODIFY_REG(RCC->CR, RCC_CR_HSITRIM, (0x10U << RCC_CR_HSITRIM_Pos));
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Reset CFGR register */
+ CLEAR_REG(RCC->CFGR);
+
+ /* Wait till clock switch is ready */
+ while (READ_BIT(RCC->CFGR, RCC_CFGR_SWS) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > CLOCKSWITCH_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Update the SystemCoreClock global variable */
+ SystemCoreClock = HSI_VALUE;
+
+ /* Adapt Systick interrupt period */
+ if (HAL_InitTick(uwTickPrio) != HAL_OK)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Second step is to clear PLLON bit */
+ CLEAR_BIT(RCC->CR, RCC_CR_PLLON);
+
+ /* Wait till PLL is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_PLLRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Ensure to reset PLLSRC and PLLMUL bits */
+ CLEAR_REG(RCC->CFGR);
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Reset HSEON & CSSON bits */
+ CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_CSSON);
+
+ /* Wait till HSE is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_HSERDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Reset HSEBYP bit */
+ CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP);
+
+#if defined(RCC_PLL2_SUPPORT)
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Clear PLL2ON bit */
+ CLEAR_BIT(RCC->CR, RCC_CR_PLL2ON);
+
+ /* Wait till PLL2 is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_PLL2RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+#endif /* RCC_PLL2_SUPPORT */
+
+#if defined(RCC_PLLI2S_SUPPORT)
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Clear PLL3ON bit */
+ CLEAR_BIT(RCC->CR, RCC_CR_PLL3ON);
+
+ /* Wait till PLL3 is disabled */
+ while (READ_BIT(RCC->CR, RCC_CR_PLL3RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+#endif /* RCC_PLLI2S_SUPPORT */
+
+#if defined(RCC_CFGR2_PREDIV1)
+ /* Reset CFGR2 register */
+ CLEAR_REG(RCC->CFGR2);
+#endif /* RCC_CFGR2_PREDIV1 */
+
+ /* Reset all CSR flags */
+ SET_BIT(RCC->CSR, RCC_CSR_RMVF);
+
+ /* Disable all interrupts */
+ CLEAR_REG(RCC->CIR);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the RCC Oscillators according to the specified parameters in the
+ * RCC_OscInitTypeDef.
+ * @param RCC_OscInitStruct pointer to an RCC_OscInitTypeDef structure that
+ * contains the configuration information for the RCC Oscillators.
+ * @note The PLL is not disabled when used as system clock.
+ * @note The PLL is not disabled when USB OTG FS clock is enabled (specific to devices with USB FS)
+ * @note Transitions LSE Bypass to LSE On and LSE On to LSE Bypass are not
+ * supported by this macro. User should request a transition to LSE Off
+ * first and then LSE On or LSE Bypass.
+ * @note Transition HSE Bypass to HSE On and HSE On to HSE Bypass are not
+ * supported by this macro. User should request a transition to HSE Off
+ * first and then HSE On or HSE Bypass.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct)
+{
+ uint32_t tickstart;
+ uint32_t pll_config;
+
+ /* Check Null pointer */
+ if (RCC_OscInitStruct == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType));
+
+ /*------------------------------- HSE Configuration ------------------------*/
+ if (((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState));
+
+ /* When the HSE is used as system clock or clock source for PLL in these cases it is not allowed to be disabled */
+ if ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSE)
+ || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE)))
+ {
+ if ((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) && (RCC_OscInitStruct->HSEState == RCC_HSE_OFF))
+ {
+ return HAL_ERROR;
+ }
+ }
+ else
+ {
+ /* Set the new HSE configuration ---------------------------------------*/
+ __HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState);
+
+
+ /* Check the HSE State */
+ if (RCC_OscInitStruct->HSEState != RCC_HSE_OFF)
+ {
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till HSE is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till HSE is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ }
+ /*----------------------------- HSI Configuration --------------------------*/
+ if (((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState));
+ assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue));
+
+ /* Check if HSI is used as system clock or as PLL source when PLL is selected as system clock */
+ if ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSI)
+ || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSI_DIV2)))
+ {
+ /* When HSI is used as system clock it will not disabled */
+ if ((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON))
+ {
+ return HAL_ERROR;
+ }
+ /* Otherwise, just the calibration is allowed */
+ else
+ {
+ /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
+ __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
+ }
+ }
+ else
+ {
+ /* Check the HSI State */
+ if (RCC_OscInitStruct->HSIState != RCC_HSI_OFF)
+ {
+ /* Enable the Internal High Speed oscillator (HSI). */
+ __HAL_RCC_HSI_ENABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till HSI is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSI_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/
+ __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue);
+ }
+ else
+ {
+ /* Disable the Internal High Speed oscillator (HSI). */
+ __HAL_RCC_HSI_DISABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till HSI is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > HSI_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ }
+ /*------------------------------ LSI Configuration -------------------------*/
+ if (((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState));
+
+ /* Check the LSI State */
+ if (RCC_OscInitStruct->LSIState != RCC_LSI_OFF)
+ {
+ /* Enable the Internal Low Speed oscillator (LSI). */
+ __HAL_RCC_LSI_ENABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till LSI is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > LSI_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ /* To have a fully stabilized clock in the specified range, a software delay of 1ms
+ should be added.*/
+ RCC_Delay(1);
+ }
+ else
+ {
+ /* Disable the Internal Low Speed oscillator (LSI). */
+ __HAL_RCC_LSI_DISABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till LSI is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > LSI_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ /*------------------------------ LSE Configuration -------------------------*/
+ if (((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE)
+ {
+ FlagStatus pwrclkchanged = RESET;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState));
+
+ /* Update LSE configuration in Backup Domain control register */
+ /* Requires to enable write access to Backup Domain of necessary */
+ if (__HAL_RCC_PWR_IS_CLK_DISABLED())
+ {
+ __HAL_RCC_PWR_CLK_ENABLE();
+ pwrclkchanged = SET;
+ }
+
+ if (HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ /* Enable write access to Backup domain */
+ SET_BIT(PWR->CR, PWR_CR_DBP);
+
+ /* Wait for Backup domain Write protection disable */
+ tickstart = HAL_GetTick();
+
+ while (HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ if ((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ /* Set the new LSE configuration -----------------------------------------*/
+ __HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState);
+ /* Check the LSE State */
+ if (RCC_OscInitStruct->LSEState != RCC_LSE_OFF)
+ {
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till LSE is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > RCC_LSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till LSE is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > RCC_LSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ /* Require to disable power clock if necessary */
+ if (pwrclkchanged == SET)
+ {
+ __HAL_RCC_PWR_CLK_DISABLE();
+ }
+ }
+
+#if defined(RCC_CR_PLL2ON)
+ /*-------------------------------- PLL2 Configuration -----------------------*/
+ /* Check the parameters */
+ assert_param(IS_RCC_PLL2(RCC_OscInitStruct->PLL2.PLL2State));
+ if ((RCC_OscInitStruct->PLL2.PLL2State) != RCC_PLL2_NONE)
+ {
+ /* This bit can not be cleared if the PLL2 clock is used indirectly as system
+ clock (i.e. it is used as PLL clock entry that is used as system clock). */
+ if ((__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) && \
+ (__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && \
+ ((READ_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC)) == RCC_CFGR2_PREDIV1SRC_PLL2))
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ if ((RCC_OscInitStruct->PLL2.PLL2State) == RCC_PLL2_ON)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLL2_MUL(RCC_OscInitStruct->PLL2.PLL2MUL));
+ assert_param(IS_RCC_HSE_PREDIV2(RCC_OscInitStruct->PLL2.HSEPrediv2Value));
+
+ /* Prediv2 can be written only when the PLLI2S is disabled. */
+ /* Return an error only if new value is different from the programmed value */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON) && \
+ (__HAL_RCC_HSE_GET_PREDIV2() != RCC_OscInitStruct->PLL2.HSEPrediv2Value))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Disable the main PLL2. */
+ __HAL_RCC_PLL2_DISABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the HSE prediv2 factor --------------------------------*/
+ __HAL_RCC_HSE_PREDIV2_CONFIG(RCC_OscInitStruct->PLL2.HSEPrediv2Value);
+
+ /* Configure the main PLL2 multiplication factors. */
+ __HAL_RCC_PLL2_CONFIG(RCC_OscInitStruct->PLL2.PLL2MUL);
+
+ /* Enable the main PLL2. */
+ __HAL_RCC_PLL2_ENABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* Set PREDIV1 source to HSE */
+ CLEAR_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC);
+
+ /* Disable the main PLL2. */
+ __HAL_RCC_PLL2_DISABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ }
+
+#endif /* RCC_CR_PLL2ON */
+ /*-------------------------------- PLL Configuration -----------------------*/
+ /* Check the parameters */
+ assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState));
+ if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE)
+ {
+ /* Check if the PLL is used as system clock or not */
+ if (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_PLLCLK)
+ {
+ if ((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource));
+ assert_param(IS_RCC_PLL_MUL(RCC_OscInitStruct->PLL.PLLMUL));
+
+ /* Disable the main PLL. */
+ __HAL_RCC_PLL_DISABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the HSE prediv factor --------------------------------*/
+ /* It can be written only when the PLL is disabled. Not used in PLL source is different than HSE */
+ if (RCC_OscInitStruct->PLL.PLLSource == RCC_PLLSOURCE_HSE)
+ {
+ /* Check the parameter */
+ assert_param(IS_RCC_HSE_PREDIV(RCC_OscInitStruct->HSEPredivValue));
+#if defined(RCC_CFGR2_PREDIV1SRC)
+ assert_param(IS_RCC_PREDIV1_SOURCE(RCC_OscInitStruct->Prediv1Source));
+
+ /* Set PREDIV1 source */
+ SET_BIT(RCC->CFGR2, RCC_OscInitStruct->Prediv1Source);
+#endif /* RCC_CFGR2_PREDIV1SRC */
+
+ /* Set PREDIV1 Value */
+ __HAL_RCC_HSE_PREDIV_CONFIG(RCC_OscInitStruct->HSEPredivValue);
+ }
+
+ /* Configure the main PLL clock source and multiplication factors. */
+ __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource,
+ RCC_OscInitStruct->PLL.PLLMUL);
+ /* Enable the main PLL. */
+ __HAL_RCC_PLL_ENABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* Disable the main PLL. */
+ __HAL_RCC_PLL_DISABLE();
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ else
+ {
+ /* Check if there is a request to disable the PLL used as System clock source */
+ if ((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_OFF)
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Do not return HAL_ERROR if request repeats the current configuration */
+ pll_config = RCC->CFGR;
+ if ((READ_BIT(pll_config, RCC_CFGR_PLLSRC) != RCC_OscInitStruct->PLL.PLLSource) ||
+ (READ_BIT(pll_config, RCC_CFGR_PLLMULL) != RCC_OscInitStruct->PLL.PLLMUL))
+ {
+ return HAL_ERROR;
+ }
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the CPU, AHB and APB buses clocks according to the specified
+ * parameters in the RCC_ClkInitStruct.
+ * @param RCC_ClkInitStruct pointer to an RCC_OscInitTypeDef structure that
+ * contains the configuration information for the RCC peripheral.
+ * @param FLatency FLASH Latency
+ * The value of this parameter depend on device used within the same series
+ * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency
+ * and updated by @ref HAL_RCC_GetHCLKFreq() function called within this function
+ *
+ * @note The HSI is used (enabled by hardware) as system clock source after
+ * start-up from Reset, wake-up from STOP and STANDBY mode, or in case
+ * of failure of the HSE used directly or indirectly as system clock
+ * (if the Clock Security System CSS is enabled).
+ *
+ * @note A switch from one clock source to another occurs only if the target
+ * clock source is ready (clock stable after start-up delay or PLL locked).
+ * If a clock source which is not yet ready is selected, the switch will
+ * occur when the clock source will be ready.
+ * You can use @ref HAL_RCC_GetClockConfig() function to know which clock is
+ * currently used as system clock source.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency)
+{
+ uint32_t tickstart;
+
+ /* Check Null pointer */
+ if (RCC_ClkInitStruct == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_RCC_CLOCKTYPE(RCC_ClkInitStruct->ClockType));
+ assert_param(IS_FLASH_LATENCY(FLatency));
+
+ /* To correctly read data from FLASH memory, the number of wait states (LATENCY)
+ must be correctly programmed according to the frequency of the CPU clock
+ (HCLK) of the device. */
+
+#if defined(FLASH_ACR_LATENCY)
+ /* Increasing the number of wait states because of higher CPU frequency */
+ if (FLatency > __HAL_FLASH_GET_LATENCY())
+ {
+ /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
+ __HAL_FLASH_SET_LATENCY(FLatency);
+
+ /* Check that the new number of wait states is taken into account to access the Flash
+ memory by reading the FLASH_ACR register */
+ if (__HAL_FLASH_GET_LATENCY() != FLatency)
+ {
+ return HAL_ERROR;
+ }
+}
+
+#endif /* FLASH_ACR_LATENCY */
+/*-------------------------- HCLK Configuration --------------------------*/
+if (((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK)
+ {
+ /* Set the highest APBx dividers in order to ensure that we do not go through
+ a non-spec phase whatever we decrease or increase HCLK. */
+ if (((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1)
+ {
+ MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, RCC_HCLK_DIV16);
+ }
+
+ if (((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2)
+ {
+ MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, (RCC_HCLK_DIV16 << 3));
+ }
+
+ /* Set the new HCLK clock divider */
+ assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider));
+ MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider);
+ }
+
+ /*------------------------- SYSCLK Configuration ---------------------------*/
+ if (((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK)
+ {
+ assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource));
+
+ /* HSE is selected as System Clock Source */
+ if (RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE)
+ {
+ /* Check the HSE ready flag */
+ if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET)
+ {
+ return HAL_ERROR;
+ }
+ }
+ /* PLL is selected as System Clock Source */
+ else if (RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK)
+ {
+ /* Check the PLL ready flag */
+ if (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET)
+ {
+ return HAL_ERROR;
+ }
+ }
+ /* HSI is selected as System Clock Source */
+ else
+ {
+ /* Check the HSI ready flag */
+ if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET)
+ {
+ return HAL_ERROR;
+ }
+ }
+ __HAL_RCC_SYSCLK_CONFIG(RCC_ClkInitStruct->SYSCLKSource);
+
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ while (__HAL_RCC_GET_SYSCLK_SOURCE() != (RCC_ClkInitStruct->SYSCLKSource << RCC_CFGR_SWS_Pos))
+ {
+ if ((HAL_GetTick() - tickstart) > CLOCKSWITCH_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+#if defined(FLASH_ACR_LATENCY)
+ /* Decreasing the number of wait states because of lower CPU frequency */
+ if (FLatency < __HAL_FLASH_GET_LATENCY())
+ {
+ /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */
+ __HAL_FLASH_SET_LATENCY(FLatency);
+
+ /* Check that the new number of wait states is taken into account to access the Flash
+ memory by reading the FLASH_ACR register */
+ if (__HAL_FLASH_GET_LATENCY() != FLatency)
+ {
+ return HAL_ERROR;
+ }
+}
+#endif /* FLASH_ACR_LATENCY */
+
+/*-------------------------- PCLK1 Configuration ---------------------------*/
+if (((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1)
+ {
+ assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB1CLKDivider));
+ MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, RCC_ClkInitStruct->APB1CLKDivider);
+ }
+
+ /*-------------------------- PCLK2 Configuration ---------------------------*/
+ if (((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2)
+ {
+ assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB2CLKDivider));
+ MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, ((RCC_ClkInitStruct->APB2CLKDivider) << 3));
+ }
+
+ /* Update the SystemCoreClock global variable */
+ SystemCoreClock = HAL_RCC_GetSysClockFreq() >> AHBPrescTable[(RCC->CFGR & RCC_CFGR_HPRE) >> RCC_CFGR_HPRE_Pos];
+
+ /* Configure the source of time base considering new system clocks settings*/
+ HAL_InitTick(uwTickPrio);
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup RCC_Exported_Functions_Group2 Peripheral Control functions
+ * @brief RCC clocks control functions
+ *
+ @verbatim
+ ===============================================================================
+ ##### Peripheral Control functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the RCC Clocks
+ frequencies.
+
+ @endverbatim
+ * @{
+ */
+
+/**
+ * @brief Selects the clock source to output on MCO pin.
+ * @note MCO pin should be configured in alternate function mode.
+ * @param RCC_MCOx specifies the output direction for the clock source.
+ * This parameter can be one of the following values:
+ * @arg @ref RCC_MCO1 Clock source to output on MCO1 pin(PA8).
+ * @param RCC_MCOSource specifies the clock source to output.
+ * This parameter can be one of the following values:
+ * @arg @ref RCC_MCO1SOURCE_NOCLOCK No clock selected as MCO clock
+ * @arg @ref RCC_MCO1SOURCE_SYSCLK System clock selected as MCO clock
+ * @arg @ref RCC_MCO1SOURCE_HSI HSI selected as MCO clock
+ * @arg @ref RCC_MCO1SOURCE_HSE HSE selected as MCO clock
+ @if STM32F105xC
+ * @arg @ref RCC_MCO1SOURCE_PLLCLK PLL clock divided by 2 selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_PLL2CLK PLL2 clock selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_PLL3CLK_DIV2 PLL3 clock divided by 2 selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_EXT_HSE XT1 external 3-25 MHz oscillator clock selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_PLL3CLK PLL3 clock selected as MCO source
+ @endif
+ @if STM32F107xC
+ * @arg @ref RCC_MCO1SOURCE_PLLCLK PLL clock divided by 2 selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_PLL2CLK PLL2 clock selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_PLL3CLK_DIV2 PLL3 clock divided by 2 selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_EXT_HSE XT1 external 3-25 MHz oscillator clock selected as MCO source
+ * @arg @ref RCC_MCO1SOURCE_PLL3CLK PLL3 clock selected as MCO source
+ @endif
+ * @param RCC_MCODiv specifies the MCO DIV.
+ * This parameter can be one of the following values:
+ * @arg @ref RCC_MCODIV_1 no division applied to MCO clock
+ * @retval None
+ */
+void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv)
+{
+ GPIO_InitTypeDef gpio = {0U};
+
+ /* Check the parameters */
+ assert_param(IS_RCC_MCO(RCC_MCOx));
+ assert_param(IS_RCC_MCODIV(RCC_MCODiv));
+ assert_param(IS_RCC_MCO1SOURCE(RCC_MCOSource));
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(RCC_MCOx);
+ UNUSED(RCC_MCODiv);
+
+ /* Configure the MCO1 pin in alternate function mode */
+ gpio.Mode = GPIO_MODE_AF_PP;
+ gpio.Speed = GPIO_SPEED_FREQ_HIGH;
+ gpio.Pull = GPIO_NOPULL;
+ gpio.Pin = MCO1_PIN;
+
+ /* MCO1 Clock Enable */
+ MCO1_CLK_ENABLE();
+
+ HAL_GPIO_Init(MCO1_GPIO_PORT, &gpio);
+
+ /* Configure the MCO clock source */
+ __HAL_RCC_MCO1_CONFIG(RCC_MCOSource, RCC_MCODiv);
+}
+
+/**
+ * @brief Enables the Clock Security System.
+ * @note If a failure is detected on the HSE oscillator clock, this oscillator
+ * is automatically disabled and an interrupt is generated to inform the
+ * software about the failure (Clock Security System Interrupt, CSSI),
+ * allowing the MCU to perform rescue operations. The CSSI is linked to
+ * the Cortex-M3 NMI (Non-Maskable Interrupt) exception vector.
+ * @retval None
+ */
+void HAL_RCC_EnableCSS(void)
+{
+ *(__IO uint32_t *) RCC_CR_CSSON_BB = (uint32_t)ENABLE;
+}
+
+/**
+ * @brief Disables the Clock Security System.
+ * @retval None
+ */
+void HAL_RCC_DisableCSS(void)
+{
+ *(__IO uint32_t *) RCC_CR_CSSON_BB = (uint32_t)DISABLE;
+}
+
+/**
+ * @brief Returns the SYSCLK frequency
+ * @note The system frequency computed by this function is not the real
+ * frequency in the chip. It is calculated based on the predefined
+ * constant and the selected clock source:
+ * @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(*)
+ * @note If SYSCLK source is HSE, function returns a value based on HSE_VALUE
+ * divided by PREDIV factor(**)
+ * @note If SYSCLK source is PLL, function returns a value based on HSE_VALUE
+ * divided by PREDIV factor(**) or HSI_VALUE(*) multiplied by the PLL factor.
+ * @note (*) HSI_VALUE is a constant defined in stm32f1xx_hal_conf.h file (default value
+ * 8 MHz) but the real value may vary depending on the variations
+ * in voltage and temperature.
+ * @note (**) HSE_VALUE is a constant defined in stm32f1xx_hal_conf.h file (default value
+ * 8 MHz), user has to ensure that HSE_VALUE is same as the real
+ * frequency of the crystal used. Otherwise, this function may
+ * have wrong result.
+ *
+ * @note The result of this function could be not correct when using fractional
+ * value for HSE crystal.
+ *
+ * @note This function can be used by the user application to compute the
+ * baud-rate for the communication peripherals or configure other parameters.
+ *
+ * @note Each time SYSCLK changes, this function must be called to update the
+ * right SYSCLK value. Otherwise, any configuration based on this function will be incorrect.
+ *
+ * @retval SYSCLK frequency
+ */
+uint32_t HAL_RCC_GetSysClockFreq(void)
+{
+#if defined(RCC_CFGR2_PREDIV1SRC)
+ const uint8_t aPLLMULFactorTable[14] = {0, 0, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 13};
+ const uint8_t aPredivFactorTable[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+#else
+ const uint8_t aPLLMULFactorTable[16] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16};
+#if defined(RCC_CFGR2_PREDIV1)
+ const uint8_t aPredivFactorTable[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+#else
+ const uint8_t aPredivFactorTable[2] = {1, 2};
+#endif /*RCC_CFGR2_PREDIV1*/
+
+#endif
+ uint32_t tmpreg = 0U, prediv = 0U, pllclk = 0U, pllmul = 0U;
+ uint32_t sysclockfreq = 0U;
+#if defined(RCC_CFGR2_PREDIV1SRC)
+ uint32_t prediv2 = 0U, pll2mul = 0U;
+#endif /*RCC_CFGR2_PREDIV1SRC*/
+
+ tmpreg = RCC->CFGR;
+
+ /* Get SYSCLK source -------------------------------------------------------*/
+ switch (tmpreg & RCC_CFGR_SWS)
+ {
+ case RCC_SYSCLKSOURCE_STATUS_HSE: /* HSE used as system clock */
+ {
+ sysclockfreq = HSE_VALUE;
+ break;
+ }
+ case RCC_SYSCLKSOURCE_STATUS_PLLCLK: /* PLL used as system clock */
+ {
+ pllmul = aPLLMULFactorTable[(uint32_t)(tmpreg & RCC_CFGR_PLLMULL) >> RCC_CFGR_PLLMULL_Pos];
+ if ((tmpreg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+ {
+#if defined(RCC_CFGR2_PREDIV1)
+ prediv = aPredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV1) >> RCC_CFGR2_PREDIV1_Pos];
+#else
+ prediv = aPredivFactorTable[(uint32_t)(RCC->CFGR & RCC_CFGR_PLLXTPRE) >> RCC_CFGR_PLLXTPRE_Pos];
+#endif /*RCC_CFGR2_PREDIV1*/
+#if defined(RCC_CFGR2_PREDIV1SRC)
+
+ if (HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC))
+ {
+ /* PLL2 selected as Prediv1 source */
+ /* PLLCLK = PLL2CLK / PREDIV1 * PLLMUL with PLL2CLK = HSE/PREDIV2 * PLL2MUL */
+ prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> RCC_CFGR2_PREDIV2_Pos) + 1;
+ pll2mul = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> RCC_CFGR2_PLL2MUL_Pos) + 2;
+ pllclk = (uint32_t)(((uint64_t)HSE_VALUE * (uint64_t)pll2mul * (uint64_t)pllmul) / ((uint64_t)prediv2 * (uint64_t)prediv));
+ }
+ else
+ {
+ /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+ pllclk = (uint32_t)((HSE_VALUE * pllmul) / prediv);
+ }
+
+ /* If PLLMUL was set to 13 means that it was to cover the case PLLMUL 6.5 (avoid using float) */
+ /* In this case need to divide pllclk by 2 */
+ if (pllmul == aPLLMULFactorTable[(uint32_t)(RCC_CFGR_PLLMULL6_5) >> RCC_CFGR_PLLMULL_Pos])
+ {
+ pllclk = pllclk / 2;
+ }
+#else
+ /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+ pllclk = (uint32_t)((HSE_VALUE * pllmul) / prediv);
+#endif /*RCC_CFGR2_PREDIV1SRC*/
+ }
+ else
+ {
+ /* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */
+ pllclk = (uint32_t)((HSI_VALUE >> 1) * pllmul);
+ }
+ sysclockfreq = pllclk;
+ break;
+ }
+ case RCC_SYSCLKSOURCE_STATUS_HSI: /* HSI used as system clock source */
+ default: /* HSI used as system clock */
+ {
+ sysclockfreq = HSI_VALUE;
+ break;
+ }
+ }
+ return sysclockfreq;
+}
+
+/**
+ * @brief Returns the HCLK frequency
+ * @note Each time HCLK changes, this function must be called to update the
+ * right HCLK value. Otherwise, any configuration based on this function will be incorrect.
+ *
+ * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency
+ * and updated within this function
+ * @retval HCLK frequency
+ */
+uint32_t HAL_RCC_GetHCLKFreq(void)
+{
+ return SystemCoreClock;
+}
+
+/**
+ * @brief Returns the PCLK1 frequency
+ * @note Each time PCLK1 changes, this function must be called to update the
+ * right PCLK1 value. Otherwise, any configuration based on this function will be incorrect.
+ * @retval PCLK1 frequency
+ */
+uint32_t HAL_RCC_GetPCLK1Freq(void)
+{
+ /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/
+ return (HAL_RCC_GetHCLKFreq() >> APBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE1) >> RCC_CFGR_PPRE1_Pos]);
+}
+
+/**
+ * @brief Returns the PCLK2 frequency
+ * @note Each time PCLK2 changes, this function must be called to update the
+ * right PCLK2 value. Otherwise, any configuration based on this function will be incorrect.
+ * @retval PCLK2 frequency
+ */
+uint32_t HAL_RCC_GetPCLK2Freq(void)
+{
+ /* Get HCLK source and Compute PCLK2 frequency ---------------------------*/
+ return (HAL_RCC_GetHCLKFreq() >> APBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE2) >> RCC_CFGR_PPRE2_Pos]);
+}
+
+/**
+ * @brief Configures the RCC_OscInitStruct according to the internal
+ * RCC configuration registers.
+ * @param RCC_OscInitStruct pointer to an RCC_OscInitTypeDef structure that
+ * will be configured.
+ * @retval None
+ */
+void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct)
+{
+ /* Check the parameters */
+ assert_param(RCC_OscInitStruct != NULL);
+
+ /* Set all possible values for the Oscillator type parameter ---------------*/
+ RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI \
+ | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI;
+
+#if defined(RCC_CFGR2_PREDIV1SRC)
+ /* Get the Prediv1 source --------------------------------------------------*/
+ RCC_OscInitStruct->Prediv1Source = READ_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC);
+#endif /* RCC_CFGR2_PREDIV1SRC */
+
+ /* Get the HSE configuration -----------------------------------------------*/
+ if ((RCC->CR & RCC_CR_HSEBYP) == RCC_CR_HSEBYP)
+ {
+ RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS;
+ }
+ else if ((RCC->CR & RCC_CR_HSEON) == RCC_CR_HSEON)
+ {
+ RCC_OscInitStruct->HSEState = RCC_HSE_ON;
+ }
+ else
+ {
+ RCC_OscInitStruct->HSEState = RCC_HSE_OFF;
+ }
+ RCC_OscInitStruct->HSEPredivValue = __HAL_RCC_HSE_GET_PREDIV();
+
+ /* Get the HSI configuration -----------------------------------------------*/
+ if ((RCC->CR & RCC_CR_HSION) == RCC_CR_HSION)
+ {
+ RCC_OscInitStruct->HSIState = RCC_HSI_ON;
+ }
+ else
+ {
+ RCC_OscInitStruct->HSIState = RCC_HSI_OFF;
+ }
+
+ RCC_OscInitStruct->HSICalibrationValue = (uint32_t)((RCC->CR & RCC_CR_HSITRIM) >> RCC_CR_HSITRIM_Pos);
+
+ /* Get the LSE configuration -----------------------------------------------*/
+ if ((RCC->BDCR & RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP)
+ {
+ RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS;
+ }
+ else if ((RCC->BDCR & RCC_BDCR_LSEON) == RCC_BDCR_LSEON)
+ {
+ RCC_OscInitStruct->LSEState = RCC_LSE_ON;
+ }
+ else
+ {
+ RCC_OscInitStruct->LSEState = RCC_LSE_OFF;
+ }
+
+ /* Get the LSI configuration -----------------------------------------------*/
+ if ((RCC->CSR & RCC_CSR_LSION) == RCC_CSR_LSION)
+ {
+ RCC_OscInitStruct->LSIState = RCC_LSI_ON;
+ }
+ else
+ {
+ RCC_OscInitStruct->LSIState = RCC_LSI_OFF;
+ }
+
+
+ /* Get the PLL configuration -----------------------------------------------*/
+ if ((RCC->CR & RCC_CR_PLLON) == RCC_CR_PLLON)
+ {
+ RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON;
+ }
+ else
+ {
+ RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF;
+ }
+ RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLSRC);
+ RCC_OscInitStruct->PLL.PLLMUL = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLMULL);
+#if defined(RCC_CR_PLL2ON)
+ /* Get the PLL2 configuration -----------------------------------------------*/
+ if ((RCC->CR & RCC_CR_PLL2ON) == RCC_CR_PLL2ON)
+ {
+ RCC_OscInitStruct->PLL2.PLL2State = RCC_PLL2_ON;
+ }
+ else
+ {
+ RCC_OscInitStruct->PLL2.PLL2State = RCC_PLL2_OFF;
+ }
+ RCC_OscInitStruct->PLL2.HSEPrediv2Value = __HAL_RCC_HSE_GET_PREDIV2();
+ RCC_OscInitStruct->PLL2.PLL2MUL = (uint32_t)(RCC->CFGR2 & RCC_CFGR2_PLL2MUL);
+#endif /* RCC_CR_PLL2ON */
+}
+
+/**
+ * @brief Get the RCC_ClkInitStruct according to the internal
+ * RCC configuration registers.
+ * @param RCC_ClkInitStruct pointer to an RCC_ClkInitTypeDef structure that
+ * contains the current clock configuration.
+ * @param pFLatency Pointer on the Flash Latency.
+ * @retval None
+ */
+void HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t *pFLatency)
+{
+ /* Check the parameters */
+ assert_param(RCC_ClkInitStruct != NULL);
+ assert_param(pFLatency != NULL);
+
+ /* Set all possible values for the Clock type parameter --------------------*/
+ RCC_ClkInitStruct->ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
+
+ /* Get the SYSCLK configuration --------------------------------------------*/
+ RCC_ClkInitStruct->SYSCLKSource = (uint32_t)(RCC->CFGR & RCC_CFGR_SW);
+
+ /* Get the HCLK configuration ----------------------------------------------*/
+ RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_HPRE);
+
+ /* Get the APB1 configuration ----------------------------------------------*/
+ RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_PPRE1);
+
+ /* Get the APB2 configuration ----------------------------------------------*/
+ RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)((RCC->CFGR & RCC_CFGR_PPRE2) >> 3);
+
+#if defined(FLASH_ACR_LATENCY)
+ /* Get the Flash Wait State (Latency) configuration ------------------------*/
+ *pFLatency = (uint32_t)(FLASH->ACR & FLASH_ACR_LATENCY);
+#else
+ /* For VALUE lines devices, only LATENCY_0 can be set*/
+ *pFLatency = (uint32_t)FLASH_LATENCY_0;
+#endif
+}
+
+/**
+ * @brief This function handles the RCC CSS interrupt request.
+ * @note This API should be called under the NMI_Handler().
+ * @retval None
+ */
+void HAL_RCC_NMI_IRQHandler(void)
+{
+ /* Check RCC CSSF flag */
+ if (__HAL_RCC_GET_IT(RCC_IT_CSS))
+ {
+ /* RCC Clock Security System interrupt user callback */
+ HAL_RCC_CSSCallback();
+
+ /* Clear RCC CSS pending bit */
+ __HAL_RCC_CLEAR_IT(RCC_IT_CSS);
+ }
+}
+
+/**
+ * @brief This function provides delay (in milliseconds) based on CPU cycles method.
+ * @param mdelay: specifies the delay time length, in milliseconds.
+ * @retval None
+ */
+static void RCC_Delay(uint32_t mdelay)
+{
+ __IO uint32_t Delay = mdelay * (SystemCoreClock / 8U / 1000U);
+ do
+ {
+ __NOP();
+ }
+ while (Delay --);
+}
+
+/**
+ * @brief RCC Clock Security System interrupt callback
+ * @retval none
+ */
+__weak void HAL_RCC_CSSCallback(void)
+{
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_RCC_CSSCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_RCC_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/stm32/f103c8t6/stm32f1xx_hal_rcc_ex.c b/stm32/f103c8t6/stm32f1xx_hal_rcc_ex.c
new file mode 100644
index 0000000..a5be9af
--- /dev/null
+++ b/stm32/f103c8t6/stm32f1xx_hal_rcc_ex.c
@@ -0,0 +1,863 @@
+/**
+ ******************************************************************************
+ * @file stm32f1xx_hal_rcc_ex.c
+ * @author MCD Application Team
+ * @brief Extended RCC HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities RCC extension peripheral:
+ * + Extended Peripheral Control functions
+ *
+ ******************************************************************************
+ * @attention
+ *
+ * © Copyright (c) 2016 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+ * @{
+ */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+
+/** @defgroup RCCEx RCCEx
+ * @brief RCC Extension HAL module driver.
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup RCCEx_Private_Constants RCCEx Private Constants
+ * @{
+ */
+/**
+ * @}
+ */
+
+/* Private macro -------------------------------------------------------------*/
+/** @defgroup RCCEx_Private_Macros RCCEx Private Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup RCCEx_Exported_Functions RCCEx Exported Functions
+ * @{
+ */
+
+/** @defgroup RCCEx_Exported_Functions_Group1 Peripheral Control functions
+ * @brief Extended Peripheral Control functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Extended Peripheral Control functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the RCC Clocks
+ frequencies.
+ [..]
+ (@) Important note: Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to
+ select the RTC clock source; in this case the Backup domain will be reset in
+ order to modify the RTC Clock source, as consequence RTC registers (including
+ the backup registers) are set to their reset values.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the RCC extended peripherals clocks according to the specified parameters in the
+ * RCC_PeriphCLKInitTypeDef.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * contains the configuration information for the Extended Peripherals clocks(RTC clock).
+ *
+ * @note Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to select
+ * the RTC clock source; in this case the Backup domain will be reset in
+ * order to modify the RTC Clock source, as consequence RTC registers (including
+ * the backup registers) are set to their reset values.
+ *
+ * @note In case of STM32F105xC or STM32F107xC devices, PLLI2S will be enabled if requested on
+ * one of 2 I2S interfaces. When PLLI2S is enabled, you need to call HAL_RCCEx_DisablePLLI2S to
+ * manually disable it.
+ *
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t tickstart = 0U, temp_reg = 0U;
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ uint32_t pllactive = 0U;
+#endif /* STM32F105xC || STM32F107xC */
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection));
+
+ /*------------------------------- RTC/LCD Configuration ------------------------*/
+ if ((((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RTC) == RCC_PERIPHCLK_RTC))
+ {
+ FlagStatus pwrclkchanged = RESET;
+
+ /* check for RTC Parameters used to output RTCCLK */
+ assert_param(IS_RCC_RTCCLKSOURCE(PeriphClkInit->RTCClockSelection));
+
+ /* As soon as function is called to change RTC clock source, activation of the
+ power domain is done. */
+ /* Requires to enable write access to Backup Domain of necessary */
+ if (__HAL_RCC_PWR_IS_CLK_DISABLED())
+ {
+ __HAL_RCC_PWR_CLK_ENABLE();
+ pwrclkchanged = SET;
+ }
+
+ if (HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ /* Enable write access to Backup domain */
+ SET_BIT(PWR->CR, PWR_CR_DBP);
+
+ /* Wait for Backup domain Write protection disable */
+ tickstart = HAL_GetTick();
+
+ while (HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP))
+ {
+ if ((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ /* Reset the Backup domain only if the RTC Clock source selection is modified from reset value */
+ temp_reg = (RCC->BDCR & RCC_BDCR_RTCSEL);
+ if ((temp_reg != 0x00000000U) && (temp_reg != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL)))
+ {
+ /* Store the content of BDCR register before the reset of Backup Domain */
+ temp_reg = (RCC->BDCR & ~(RCC_BDCR_RTCSEL));
+ /* RTC Clock selection can be changed only if the Backup Domain is reset */
+ __HAL_RCC_BACKUPRESET_FORCE();
+ __HAL_RCC_BACKUPRESET_RELEASE();
+ /* Restore the Content of BDCR register */
+ RCC->BDCR = temp_reg;
+
+ /* Wait for LSERDY if LSE was enabled */
+ if (HAL_IS_BIT_SET(temp_reg, RCC_BDCR_LSEON))
+ {
+ /* Get Start Tick */
+ tickstart = HAL_GetTick();
+
+ /* Wait till LSE is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > RCC_LSE_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ }
+ __HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection);
+
+ /* Require to disable power clock if necessary */
+ if (pwrclkchanged == SET)
+ {
+ __HAL_RCC_PWR_CLK_DISABLE();
+ }
+ }
+
+ /*------------------------------ ADC clock Configuration ------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_ADC) == RCC_PERIPHCLK_ADC)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_ADCPLLCLK_DIV(PeriphClkInit->AdcClockSelection));
+
+ /* Configure the ADC clock source */
+ __HAL_RCC_ADC_CONFIG(PeriphClkInit->AdcClockSelection);
+ }
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ /*------------------------------ I2S2 Configuration ------------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S2) == RCC_PERIPHCLK_I2S2)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2S2CLKSOURCE(PeriphClkInit->I2s2ClockSelection));
+
+ /* Configure the I2S2 clock source */
+ __HAL_RCC_I2S2_CONFIG(PeriphClkInit->I2s2ClockSelection);
+ }
+
+ /*------------------------------ I2S3 Configuration ------------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2S3) == RCC_PERIPHCLK_I2S3)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_I2S3CLKSOURCE(PeriphClkInit->I2s3ClockSelection));
+
+ /* Configure the I2S3 clock source */
+ __HAL_RCC_I2S3_CONFIG(PeriphClkInit->I2s3ClockSelection);
+ }
+
+ /*------------------------------ PLL I2S Configuration ----------------------*/
+ /* Check that PLLI2S need to be enabled */
+ if (HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_I2S2SRC) || HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+ {
+ /* Update flag to indicate that PLL I2S should be active */
+ pllactive = 1;
+ }
+
+ /* Check if PLL I2S need to be enabled */
+ if (pllactive == 1)
+ {
+ /* Enable PLL I2S only if not active */
+ if (HAL_IS_BIT_CLR(RCC->CR, RCC_CR_PLL3ON))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLLI2S_MUL(PeriphClkInit->PLLI2S.PLLI2SMUL));
+ assert_param(IS_RCC_HSE_PREDIV2(PeriphClkInit->PLLI2S.HSEPrediv2Value));
+
+ /* Prediv2 can be written only when the PLL2 is disabled. */
+ /* Return an error only if new value is different from the programmed value */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL2ON) && \
+ (__HAL_RCC_HSE_GET_PREDIV2() != PeriphClkInit->PLLI2S.HSEPrediv2Value))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Configure the HSE prediv2 factor --------------------------------*/
+ __HAL_RCC_HSE_PREDIV2_CONFIG(PeriphClkInit->PLLI2S.HSEPrediv2Value);
+
+ /* Configure the main PLLI2S multiplication factors. */
+ __HAL_RCC_PLLI2S_CONFIG(PeriphClkInit->PLLI2S.PLLI2SMUL);
+
+ /* Enable the main PLLI2S. */
+ __HAL_RCC_PLLI2S_ENABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLLI2S is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* Return an error only if user wants to change the PLLI2SMUL whereas PLLI2S is active */
+ if (READ_BIT(RCC->CFGR2, RCC_CFGR2_PLL3MUL) != PeriphClkInit->PLLI2S.PLLI2SMUL)
+ {
+ return HAL_ERROR;
+ }
+ }
+ }
+#endif /* STM32F105xC || STM32F107xC */
+
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+ /*------------------------------ USB clock Configuration ------------------*/
+ if (((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USB) == RCC_PERIPHCLK_USB)
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_USBPLLCLK_DIV(PeriphClkInit->UsbClockSelection));
+
+ /* Configure the USB clock source */
+ __HAL_RCC_USB_CONFIG(PeriphClkInit->UsbClockSelection);
+ }
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Get the PeriphClkInit according to the internal
+ * RCC configuration registers.
+ * @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that
+ * returns the configuration information for the Extended Peripherals clocks(RTC, I2S, ADC clocks).
+ * @retval None
+ */
+void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit)
+{
+ uint32_t srcclk = 0U;
+
+ /* Set all possible values for the extended clock type parameter------------*/
+ PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_RTC;
+
+ /* Get the RTC configuration -----------------------------------------------*/
+ srcclk = __HAL_RCC_GET_RTC_SOURCE();
+ /* Source clock is LSE or LSI*/
+ PeriphClkInit->RTCClockSelection = srcclk;
+
+ /* Get the ADC clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_ADC;
+ PeriphClkInit->AdcClockSelection = __HAL_RCC_GET_ADC_SOURCE();
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ /* Get the I2S2 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S2;
+ PeriphClkInit->I2s2ClockSelection = __HAL_RCC_GET_I2S2_SOURCE();
+
+ /* Get the I2S3 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S3;
+ PeriphClkInit->I2s3ClockSelection = __HAL_RCC_GET_I2S3_SOURCE();
+
+#endif /* STM32F105xC || STM32F107xC */
+
+#if defined(STM32F103xE) || defined(STM32F103xG)
+ /* Get the I2S2 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S2;
+ PeriphClkInit->I2s2ClockSelection = RCC_I2S2CLKSOURCE_SYSCLK;
+
+ /* Get the I2S3 clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_I2S3;
+ PeriphClkInit->I2s3ClockSelection = RCC_I2S3CLKSOURCE_SYSCLK;
+
+#endif /* STM32F103xE || STM32F103xG */
+
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+ /* Get the USB clock configuration -----------------------------------------*/
+ PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USB;
+ PeriphClkInit->UsbClockSelection = __HAL_RCC_GET_USB_SOURCE();
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+}
+
+/**
+ * @brief Returns the peripheral clock frequency
+ * @note Returns 0 if peripheral clock is unknown
+ * @param PeriphClk Peripheral clock identifier
+ * This parameter can be one of the following values:
+ * @arg @ref RCC_PERIPHCLK_RTC RTC peripheral clock
+ * @arg @ref RCC_PERIPHCLK_ADC ADC peripheral clock
+ @if STM32F103xE
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ @endif
+ @if STM32F103xG
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ @endif
+ @if STM32F105xC
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ @if STM32F107xC
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S3 I2S3 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_I2S2 I2S2 peripheral clock
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ @if STM32F102xx
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ @if STM32F103xx
+ * @arg @ref RCC_PERIPHCLK_USB USB peripheral clock
+ @endif
+ * @retval Frequency in Hz (0: means that no available frequency for the peripheral)
+ */
+uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk)
+{
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ const uint8_t aPLLMULFactorTable[14] = {0, 0, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 13};
+ const uint8_t aPredivFactorTable[16] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+
+ uint32_t prediv1 = 0U, pllclk = 0U, pllmul = 0U;
+ uint32_t pll2mul = 0U, pll3mul = 0U, prediv2 = 0U;
+#endif /* STM32F105xC || STM32F107xC */
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6) || \
+ defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)
+ const uint8_t aPLLMULFactorTable[16] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16};
+ const uint8_t aPredivFactorTable[2] = {1, 2};
+
+ uint32_t prediv1 = 0U, pllclk = 0U, pllmul = 0U;
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG */
+ uint32_t temp_reg = 0U, frequency = 0U;
+
+ /* Check the parameters */
+ assert_param(IS_RCC_PERIPHCLOCK(PeriphClk));
+
+ switch (PeriphClk)
+ {
+#if defined(STM32F102x6) || defined(STM32F102xB) || defined(STM32F103x6)\
+ || defined(STM32F103xB) || defined(STM32F103xE) || defined(STM32F103xG)\
+ || defined(STM32F105xC) || defined(STM32F107xC)
+ case RCC_PERIPHCLK_USB:
+ {
+ /* Get RCC configuration ------------------------------------------------------*/
+ temp_reg = RCC->CFGR;
+
+ /* Check if PLL is enabled */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLLON))
+ {
+ pllmul = aPLLMULFactorTable[(uint32_t)(temp_reg & RCC_CFGR_PLLMULL) >> RCC_CFGR_PLLMULL_Pos];
+ if ((temp_reg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+ {
+#if defined(STM32F105xC) || defined(STM32F107xC) || defined(STM32F100xB)\
+ || defined(STM32F100xE)
+ prediv1 = aPredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV1) >> RCC_CFGR2_PREDIV1_Pos];
+#else
+ prediv1 = aPredivFactorTable[(uint32_t)(RCC->CFGR & RCC_CFGR_PLLXTPRE) >> RCC_CFGR_PLLXTPRE_Pos];
+#endif /* STM32F105xC || STM32F107xC || STM32F100xB || STM32F100xE */
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ if (HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC))
+ {
+ /* PLL2 selected as Prediv1 source */
+ /* PLLCLK = PLL2CLK / PREDIV1 * PLLMUL with PLL2CLK = HSE/PREDIV2 * PLL2MUL */
+ prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> RCC_CFGR2_PREDIV2_Pos) + 1;
+ pll2mul = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> RCC_CFGR2_PLL2MUL_Pos) + 2;
+ pllclk = (uint32_t)((((HSE_VALUE / prediv2) * pll2mul) / prediv1) * pllmul);
+ }
+ else
+ {
+ /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+ pllclk = (uint32_t)((HSE_VALUE / prediv1) * pllmul);
+ }
+
+ /* If PLLMUL was set to 13 means that it was to cover the case PLLMUL 6.5 (avoid using float) */
+ /* In this case need to divide pllclk by 2 */
+ if (pllmul == aPLLMULFactorTable[(uint32_t)(RCC_CFGR_PLLMULL6_5) >> RCC_CFGR_PLLMULL_Pos])
+ {
+ pllclk = pllclk / 2;
+ }
+#else
+ if ((temp_reg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2)
+ {
+ /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */
+ pllclk = (uint32_t)((HSE_VALUE / prediv1) * pllmul);
+ }
+#endif /* STM32F105xC || STM32F107xC */
+ }
+ else
+ {
+ /* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */
+ pllclk = (uint32_t)((HSI_VALUE >> 1) * pllmul);
+ }
+
+ /* Calcul of the USB frequency*/
+#if defined(STM32F105xC) || defined(STM32F107xC)
+ /* USBCLK = PLLVCO = (2 x PLLCLK) / USB prescaler */
+ if (__HAL_RCC_GET_USB_SOURCE() == RCC_USBCLKSOURCE_PLL_DIV2)
+ {
+ /* Prescaler of 2 selected for USB */
+ frequency = pllclk;
+ }
+ else
+ {
+ /* Prescaler of 3 selected for USB */
+ frequency = (2 * pllclk) / 3;
+ }
+#else
+ /* USBCLK = PLLCLK / USB prescaler */
+ if (__HAL_RCC_GET_USB_SOURCE() == RCC_USBCLKSOURCE_PLL)
+ {
+ /* No prescaler selected for USB */
+ frequency = pllclk;
+ }
+ else
+ {
+ /* Prescaler of 1.5 selected for USB */
+ frequency = (pllclk * 2) / 3;
+ }
+#endif
+ }
+ break;
+ }
+#endif /* STM32F102x6 || STM32F102xB || STM32F103x6 || STM32F103xB || STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+#if defined(STM32F103xE) || defined(STM32F103xG) || defined(STM32F105xC) || defined(STM32F107xC)
+ case RCC_PERIPHCLK_I2S2:
+ {
+#if defined(STM32F103xE) || defined(STM32F103xG)
+ /* SYSCLK used as source clock for I2S2 */
+ frequency = HAL_RCC_GetSysClockFreq();
+#else
+ if (__HAL_RCC_GET_I2S2_SOURCE() == RCC_I2S2CLKSOURCE_SYSCLK)
+ {
+ /* SYSCLK used as source clock for I2S2 */
+ frequency = HAL_RCC_GetSysClockFreq();
+ }
+ else
+ {
+ /* Check if PLLI2S is enabled */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON))
+ {
+ /* PLLI2SVCO = 2 * PLLI2SCLK = 2 * (HSE/PREDIV2 * PLL3MUL) */
+ prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> RCC_CFGR2_PREDIV2_Pos) + 1;
+ pll3mul = ((RCC->CFGR2 & RCC_CFGR2_PLL3MUL) >> RCC_CFGR2_PLL3MUL_Pos) + 2;
+ frequency = (uint32_t)(2 * ((HSE_VALUE / prediv2) * pll3mul));
+ }
+ }
+#endif /* STM32F103xE || STM32F103xG */
+ break;
+ }
+ case RCC_PERIPHCLK_I2S3:
+ {
+#if defined(STM32F103xE) || defined(STM32F103xG)
+ /* SYSCLK used as source clock for I2S3 */
+ frequency = HAL_RCC_GetSysClockFreq();
+#else
+ if (__HAL_RCC_GET_I2S3_SOURCE() == RCC_I2S3CLKSOURCE_SYSCLK)
+ {
+ /* SYSCLK used as source clock for I2S3 */
+ frequency = HAL_RCC_GetSysClockFreq();
+ }
+ else
+ {
+ /* Check if PLLI2S is enabled */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON))
+ {
+ /* PLLI2SVCO = 2 * PLLI2SCLK = 2 * (HSE/PREDIV2 * PLL3MUL) */
+ prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> RCC_CFGR2_PREDIV2_Pos) + 1;
+ pll3mul = ((RCC->CFGR2 & RCC_CFGR2_PLL3MUL) >> RCC_CFGR2_PLL3MUL_Pos) + 2;
+ frequency = (uint32_t)(2 * ((HSE_VALUE / prediv2) * pll3mul));
+ }
+ }
+#endif /* STM32F103xE || STM32F103xG */
+ break;
+ }
+#endif /* STM32F103xE || STM32F103xG || STM32F105xC || STM32F107xC */
+ case RCC_PERIPHCLK_RTC:
+ {
+ /* Get RCC BDCR configuration ------------------------------------------------------*/
+ temp_reg = RCC->BDCR;
+
+ /* Check if LSE is ready if RTC clock selection is LSE */
+ if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_LSE) && (HAL_IS_BIT_SET(temp_reg, RCC_BDCR_LSERDY)))
+ {
+ frequency = LSE_VALUE;
+ }
+ /* Check if LSI is ready if RTC clock selection is LSI */
+ else if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_LSI) && (HAL_IS_BIT_SET(RCC->CSR, RCC_CSR_LSIRDY)))
+ {
+ frequency = LSI_VALUE;
+ }
+ else if (((temp_reg & RCC_BDCR_RTCSEL) == RCC_RTCCLKSOURCE_HSE_DIV128) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSERDY)))
+ {
+ frequency = HSE_VALUE / 128U;
+ }
+ /* Clock not enabled for RTC*/
+ else
+ {
+ /* nothing to do: frequency already initialized to 0U */
+ }
+ break;
+ }
+ case RCC_PERIPHCLK_ADC:
+ {
+ frequency = HAL_RCC_GetPCLK2Freq() / (((__HAL_RCC_GET_ADC_SOURCE() >> RCC_CFGR_ADCPRE_Pos) + 1) * 2);
+ break;
+ }
+ default:
+ {
+ break;
+ }
+ }
+ return (frequency);
+}
+
+/**
+ * @}
+ */
+
+#if defined(STM32F105xC) || defined(STM32F107xC)
+/** @defgroup RCCEx_Exported_Functions_Group2 PLLI2S Management function
+ * @brief PLLI2S Management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Extended PLLI2S Management functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the PLLI2S
+ activation or deactivation
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enable PLLI2S
+ * @param PLLI2SInit pointer to an RCC_PLLI2SInitTypeDef structure that
+ * contains the configuration information for the PLLI2S
+ * @note The PLLI2S configuration not modified if used by I2S2 or I2S3 Interface.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLLI2S(RCC_PLLI2SInitTypeDef *PLLI2SInit)
+{
+ uint32_t tickstart = 0U;
+
+ /* Check that PLL I2S has not been already enabled by I2S2 or I2S3*/
+ if (HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S2SRC) && HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLLI2S_MUL(PLLI2SInit->PLLI2SMUL));
+ assert_param(IS_RCC_HSE_PREDIV2(PLLI2SInit->HSEPrediv2Value));
+
+ /* Prediv2 can be written only when the PLL2 is disabled. */
+ /* Return an error only if new value is different from the programmed value */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL2ON) && \
+ (__HAL_RCC_HSE_GET_PREDIV2() != PLLI2SInit->HSEPrediv2Value))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Disable the main PLLI2S. */
+ __HAL_RCC_PLLI2S_DISABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLLI2S is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the HSE prediv2 factor --------------------------------*/
+ __HAL_RCC_HSE_PREDIV2_CONFIG(PLLI2SInit->HSEPrediv2Value);
+
+
+ /* Configure the main PLLI2S multiplication factors. */
+ __HAL_RCC_PLLI2S_CONFIG(PLLI2SInit->PLLI2SMUL);
+
+ /* Enable the main PLLI2S. */
+ __HAL_RCC_PLLI2S_ENABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLLI2S is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* PLLI2S cannot be modified as already used by I2S2 or I2S3 */
+ return HAL_ERROR;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Disable PLLI2S
+ * @note PLLI2S is not disabled if used by I2S2 or I2S3 Interface.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLLI2S(void)
+{
+ uint32_t tickstart = 0U;
+
+ /* Disable PLL I2S as not requested by I2S2 or I2S3*/
+ if (HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S2SRC) && HAL_IS_BIT_CLR(RCC->CFGR2, RCC_CFGR2_I2S3SRC))
+ {
+ /* Disable the main PLLI2S. */
+ __HAL_RCC_PLLI2S_DISABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLLI2S is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLLI2SRDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLLI2S_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+ else
+ {
+ /* PLLI2S is currently used by I2S2 or I2S3. Cannot be disabled.*/
+ return HAL_ERROR;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup RCCEx_Exported_Functions_Group3 PLL2 Management function
+ * @brief PLL2 Management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Extended PLL2 Management functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the PLL2
+ activation or deactivation
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Enable PLL2
+ * @param PLL2Init pointer to an RCC_PLL2InitTypeDef structure that
+ * contains the configuration information for the PLL2
+ * @note The PLL2 configuration not modified if used indirectly as system clock.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_EnablePLL2(RCC_PLL2InitTypeDef *PLL2Init)
+{
+ uint32_t tickstart = 0U;
+
+ /* This bit can not be cleared if the PLL2 clock is used indirectly as system
+ clock (i.e. it is used as PLL clock entry that is used as system clock). */
+ if ((__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) && \
+ (__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && \
+ ((READ_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC)) == RCC_CFGR2_PREDIV1SRC_PLL2))
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Check the parameters */
+ assert_param(IS_RCC_PLL2_MUL(PLL2Init->PLL2MUL));
+ assert_param(IS_RCC_HSE_PREDIV2(PLL2Init->HSEPrediv2Value));
+
+ /* Prediv2 can be written only when the PLLI2S is disabled. */
+ /* Return an error only if new value is different from the programmed value */
+ if (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLL3ON) && \
+ (__HAL_RCC_HSE_GET_PREDIV2() != PLL2Init->HSEPrediv2Value))
+ {
+ return HAL_ERROR;
+ }
+
+ /* Disable the main PLL2. */
+ __HAL_RCC_PLL2_DISABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Configure the HSE prediv2 factor --------------------------------*/
+ __HAL_RCC_HSE_PREDIV2_CONFIG(PLL2Init->HSEPrediv2Value);
+
+ /* Configure the main PLL2 multiplication factors. */
+ __HAL_RCC_PLL2_CONFIG(PLL2Init->PLL2MUL);
+
+ /* Enable the main PLL2. */
+ __HAL_RCC_PLL2_ENABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is ready */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) == RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Disable PLL2
+ * @note PLL2 is not disabled if used indirectly as system clock.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_RCCEx_DisablePLL2(void)
+{
+ uint32_t tickstart = 0U;
+
+ /* This bit can not be cleared if the PLL2 clock is used indirectly as system
+ clock (i.e. it is used as PLL clock entry that is used as system clock). */
+ if ((__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) && \
+ (__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && \
+ ((READ_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC)) == RCC_CFGR2_PREDIV1SRC_PLL2))
+ {
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Disable the main PLL2. */
+ __HAL_RCC_PLL2_DISABLE();
+
+ /* Get Start Tick*/
+ tickstart = HAL_GetTick();
+
+ /* Wait till PLL2 is disabled */
+ while (__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET)
+ {
+ if ((HAL_GetTick() - tickstart) > PLL2_TIMEOUT_VALUE)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+#endif /* STM32F105xC || STM32F107xC */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
diff --git a/sysinit.h b/sysinit.h
index fcc4f8a..ac0f371 100644
--- a/sysinit.h
+++ b/sysinit.h
@@ -103,7 +103,7 @@ struct sysinit {
#define SYSINIT(uniquifier, subsystem, order, func, udata) \
CTASSERT((subsystem & 0xffff) == subsystem); \
CTASSERT((order & 0xffff) == order); \
- static struct sysinit uniquifier ## _sys_init = { \
+ static const struct sysinit uniquifier ## _sys_init = { \
.si_subsys_order = MAKE_SUBORDER((subsystem), (order)), \
.si_func = (func), \
.si_udata = (udata), \