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| Architecture of FreeBSD Embedded Testing Environment | |||
| Host Machine | |||
| Provides connectivity to the internet, and Jails with root that have | |||
| direct access to each host (so user can control NFS and related issues). | |||
| Best way to provide this is via vnet for each jail. VALE or bridge switch | |||
| and provide one of the direct connection, and one for internet. | |||
| Host allows device reservation, and allows each jail to turn on/off | |||
| the device (host can drop socket in the jail, or via union mount). Passes through serial console as well (devfs). | |||
| USB to SPI? | |||
| 768-1118-ND | |||
| https://openlabpro.com/guide/interfacing-microcontrollers-with-sd-card/ | |||
| https://github.com/enjoy-digital/litesdcard | |||
| https://github.com/lambdaconcept/litesdcard | |||
| cyprus ez-usb fx2 | |||
| https://hackaday.io/project/19783-sd-card-emulation | |||
| fx3 | |||
| 428-3347-ND | |||
| https://www.cypress.com/file/136056/download | |||
| ucontrol + gige, chips $10, but dev kit $100, looks like no pre made boards | |||
| ATSAMA5D3-XPLD | |||
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| Embedded Board dev cluster | |||
| ========================== | |||
| This is the description of how the cluster is architected and setup. There | |||
| are a few design decisions that are likely to be different in other | |||
| environments, but this made the most sense for mine. | |||
| Goal | |||
| ---- | |||
| The goal of this setup is to allow people to be able to install and test | |||
| images on various boards remotely. | |||
| ### Features | |||
| - Remote power control | |||
| - serial console access | |||
| - Network boot | |||
| - Internet connectivity for boards w/ ethernet | |||
| - Isolation between board environments | |||
| Likely implemented via VLANs+jails w/ VNET to provide complete control | |||
| - Long term goals: | |||
| - Emulated microSD cards | |||
| ### Architecture | |||
| The following diagrams the connections between the components. It is expected | |||
| that the connections for the RockPro64 is followed similarly for other embedded | |||
| devices. | |||
| In the case of the Switch, the RockPro64 will be put on a VLAN which will be | |||
| delivered to the Host machine tagged. This will allow a jail in the host | |||
| machine to have a direct control over the broadcast domain for the device. | |||
| This will allow running dhcp/bootp/tftp services for netbooting by running dnsmasq | |||
| or another service. As fusefs is now jail friendly, the root FS could even be | |||
| mounted via sshfs | |||
| ************************************************************************************* | |||
| * * | |||
| * +---------------------------+ * | |||
| * | | * | |||
| * | Internet | * | |||
| * | | * | |||
| * +-------------+-------------+ * | |||
| * | * | |||
| * | * | |||
| * | * | |||
| * +-------------+-------------+ * | |||
| * | | * | |||
| * +--------------+ VLAN Switch +--------------+ * | |||
| * | | | | * | |||
| * | +---------------------------+ | * | |||
| * | | * | |||
| * +--------+-------+ +--------+-------+ * | |||
| * | | | | * | |||
| * | Host machine | | RockPro64 | * | |||
| * | | | | * | |||
| * +--------+-------+ +--------+---+---+ * | |||
| * | | | * | |||
| * | | | * | |||
| * +--------+-------+ | | * | |||
| * | | +------------------+ | | * | |||
| * | USB Hub +-----------+ Serial adapter +------------------+ | * | |||
| * | | +------------------+ | * | |||
| * +--------+-------+ | * | |||
| * | | * | |||
| * | +---------------------------+ | * | |||
| * | | +------------------+ * | |||
| * +--------------+ Power Controler | * | |||
| * | +----+ * | |||
| * +---------------------------+ | * | |||
| * | * | |||
| * +-------+-------+ * | |||
| * | 12V PS | * | |||
| * +---------------+ * | |||
| * * | |||
| ************************************************************************************* | |||
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