13.usb_mass¶

功能：usb大容量设备挂载ram或外部sdram，通过overlay选择

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  west build -p always -b art_pi -d build 13.usb_mass_ram -- \
  -DCONFIG_BOOTLOADER_MCUBOOT=y \
  -DCONFIG_MCUBOOT_SIGNATURE_KEY_FILE="\"$HOME/zephyrproject/bootloader/mcuboot/root-rsa-2048.pem\""

外部sdram演示¶

参考

https://docs.zephyrproject.org/latest/samples/subsys/usb/mass/README.html

https://docs.zephyrproject.org/latest/build/dts/api/bindings/misc/zephyr%2Cflash-disk.html

https://docs.zephyrproject.org/latest/build/dts/api/bindings/disk/zephyr%2Cram-disk.html

https://docs.zephyrproject.org/3.7.0/connectivity/usb/device_next/api/usbd.html