Skip to content

lmp-frdm-workflow.md

Latest commit

 

History

History
87 lines (61 loc) · 3.79 KB

lmp-frdm-workflow.md

File metadata and controls

87 lines (61 loc) · 3.79 KB

FRDM-IMX95 Foundries LmP — lab workflow

Goal: meta-dynamicdevices-bsp + Foundries factory dynamic-devices, machine imx95-frdm-evk, CI branch main-imx95-frdm-devel.

This doc is the single loop for bench work. Hardware steps run in your terminal so Cursor does not spam Allow on every command.

Loop

flowchart LR
  CI[Foundries CI build] --> Prep[uuu-only prep]
  Prep --> Check[uuu-only check]
  Check --> Run[uuu-only run]
  Run --> Serial[capture-frdm-serial]
  Serial --> Fix[BSP / U-Boot / CI fix]
  Fix --> CI
Loading
Step Who Command
1. CI Foundries portal / fioctl Wait for green target (note number, e.g. 2735)
2. Download You ./scripts/flash-imx95-uuu-only.sh prep 2735
2b. Verify You ./scripts/flash-imx95-uuu-only.sh check 2735 (prints full_image-nxp-boot.uuu)
3. Flash You Board SW1 (0,1), USB J3 → ./scripts/flash-imx95-uuu-only.sh run 2735 (uncompressed .wic — default)
4. Boot check You + agent SW1 (1,0) eMMC → ./scripts/capture-frdm-serial.sh (power-cycle when prompted)
5. Iterate Together You paste logs/frdm-serial-*.log; agent edits BSP/docs — no agent shell on USB/serial

Programming: one uuu script only

Use flash-imx95-uuu-only.sh until this works end-to-end. Do not use the full flash-imx95-foundries.sh for daily work.

./scripts/flash-imx95-uuu-only.sh prep 2735
./scripts/flash-imx95-uuu-only.sh check 2735
./scripts/flash-imx95-uuu-only.sh run 2735     # default: uncompressed .wic

Flash uncompressed WIC (required on imx95 FRDM)

uuu does not gunzip. full_image-nxp-boot.uuu uses Foundries .wic.gz; imx95 fastboot writes gzip bytes to eMMC → no GPT (mmc part → Unknown partition table).

Use the companion script that references the host-decompressed .wic (created at prep / first regen):

cd downloads/target-2735/flash-bundle
sudo -n uuu -pp 100 full_image-nxp-boot-wic-uncompressed.uuu

Or via the helper (same script, now the default for run):

./scripts/flash-imx95-uuu-only.sh run 2735
# explicit: --wic-uncompressed (default) or --wic-compressed (debug only)

FB line must show lmp-factory-image-imx95-frdm-evk.wic not .wic.gz. After flash, U-Boot mmc part should show GPT partitions.

NXP LF bundle required for prep: ~/Downloads/LF_v6.18.2-1.0.0_images_IMX95 (symlinks *-flash_all into the bundle). Without it, check fails on imx-boot-imx95-15x15-lpddr4x-frdm-sd.bin-flash_all.

The uuu script (generated in the bundle) is the same idea as NXP’s path: NXP flash_all at SDPS/SDPV, then Foundries WIC + production imx-boot over fastboot.

Archived: scripts/archive/flash-imx95-foundries.full.sh (only if you need old behaviour).

ser2net (boot capture)

  • TCP localhost:2000 → /dev/ttyACM0 @ 115200 (U-Boot console after flash).
  • uuu / SPL uses 921600 on the same USB port — stop ser2net before flash (flash-imx95-uuu-only.sh run does this).

One-time host setup

./scripts/install-flash-sudoers.sh
./scripts/install-sudo-askpass.sh   # optional; agents use sudo -A
# ser2net: config/ser2net/imx95-ttyACM0.yaml → /etc/ser2net.d/

Agent / Cursor

  • You run: fetch, flash, serial, uuu.
  • Agent reads: logs/, docs/, BSP notes — edits meta-dynamicdevices-bsp / factory-integration.
  • Avoid background agents for systemctl, /dev, uuu (sandbox Allow loops).

References