View source for Template:MCUXPRESSO Yocto Scripts Demo

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== Running a Demo using Yocto Scripts ==

In Yocto Dunfell and newer, Variscite provides scripts to simplify loading firmware via U-Boot or Linux:

{| class="wikitable" 
|-
! Script
! Description
|-
| <span id="yocto_scripts_u_boot">/etc/remoteproc/variscite-rproc-u-boot</span> || Configure U-Boot to load firmware on boot
|-
| <span id="yocto_scripts_rproc">/etc/remoteproc/variscite-rproc-linux</span> || Load and run firmware using Linux remoteproc framework
|}

'''Examples'''

variscite-rproc-u-boot example on imx8mm-var-dart:
 root@imx8mm-var-dart:~# /etc/remoteproc/variscite-rproc-u-boot -f /boot/cm_hello_world.bin.ddr_debug
 Configuring for DDR memory
 + fw_setenv m4_addr 0x7E000000
 + fw_setenv fdt_file imx8mm-var-som-symphony-m4.dtb
 + fw_setenv use_m4 yes
 + fw_setenv m4_bin cm_hello_world.bin.ddr_debug
 
 Finished: Please reboot, the m4 firmware will run during U-Boot

variscite-rproc-linux example on imx8mm-var-dart:
 root@imx8mm-var-dart:~# /etc/remoteproc/variscite-rproc-linux -f /lib/firmware/cm_hello_world.elf.ddr_debug
 Cortex-M: Stopping
 [  359.212638] remoteproc remoteproc0: stopped remote processor imx-rproc
 [  359.219709] remoteproc remoteproc0: powering up imx-rproc
 Cortex-M: Loading cm_hello_world.elf.ddr_debug
 [  359.227101] remoteproc remoteproc0: Booting fw image cm_hello_world.elf.ddr_debug, size 269100
 [  359.238493] imx-rproc imx8mm-cm4: m4 ddr @ 0x7e000000
 [  359.243584] remoteproc remoteproc0: no dtb rsrc-table
 [  359.248797] imx-rproc imx8mm-cm4: Setting up stack pointer and reset vector from firmware in DDR
 [  359.257626] imx-rproc imx8mm-cm4: Stack: 0x7e400000
 [  359.262542] imx-rproc imx8mm-cm4: Reset Vector: 0x7e00030d
 Cortex-M: Starting
 [  359.318074] remoteproc remoteproc0: remote processor imx-rproc is now up
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