STM32N6570-DK: external loader MX66UW1G45G_STM32N6570-DK fails with "Init function fail with timeout"

[Swami]

STM32N6570-DK: BOOT0/BOOT1 switches appear to have no effect. In DEV boot (BOOT1=H), external loader MX66UW1G45G_STM32N6570-DK fails with "Init function fail with timeout" via both STM32CubeProgrammer 2.22.0 CLI/GUI and STM32CubeIDE (ST-LINK FW V3J17M10, hot plug and under-reset modes, AP1). In serial boot (BOOT0=H), no USB DFU enumeration on USB1 and no UART acknowledgement on the STLink VCP (115200 8E1). SWD debug access works normally; the board previously booted user firmware from flash. Official STM32N6-OOB readme procedure reproducibly fails at the first sector erase.

[hamitiya]

Hello ​@Swami

Could you confirm that the Power LED is in green state ? 

You should have no issue loading the STM32N6 Out-of-the-box demo. Tried after your message and no problem on my side.

You should have the board in DEV mode for flashing, and switch to boot from flash to have the demo working.

 

Best regards,

Yanis

[Swami]

i tried the led is in green state after connecting through the programmer ide. It is in dev mode but i am getting the error while i start programming. I tried full chip erase also still the same error it will give failed to load and no output