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