Question for FLASH_PROTECT_ENABLE.

jylee@kme21.com · 发表于 2025-2-7 09:25:19

I make 2 firmwares.

- 1st firmware (FLASH_PROTECT_ENABLE is 1)
- 2nd firmware (FLASH_PROTECT_ENABLE is 0)

Test Sequence.
1) Run 1st firmware
2) Upgrade 2nd firmware via OTA
3) Run 2nd firmware
-> In this case, Can I write flash(firmware area) ?

TL_YANGBIN · 发表于 2025-2-12 09:52:54

If the flash is protected before running firmware 2, the firmware area will still be locked when running firmware 2.
Because firmware 2 no longer supports protect (lock/unlock operation), firmware area cannot be written.