AM2612: Problems related to flash erasure AM2612

zhou nanyi

Part Number: AM2612
Other Parts Discussed in Thread: UNIFLASH, , SYSCONFIG

I am using UniFlash 9.1.0 to erase the flash memory of AM2612. I select "Custom Flasher" in "Settings & Utilities" and use the file "flash_jtag_uniflash.out" for the erasure. After erasure, I also use UniFlash's memory function to read the flash address, specifically 0x60081000. I find that the content of the erased flash memory becomes either 00000000 or FFFFFFEE, instead of the expected FFFFFFFF. This issue prevents the flash memory from booting correctly after I write the program into it. How can I solve this problem?

1 day ago

0 Kier 1 day ago

Mastermind 9395 points

zhou nanyi said:
After erasure, I also use UniFlash's memory function to read the flash address, specifically 0x60081000.

I don't think that memory read of external flash works (TBC by TI) so the numbers you see might be garbage and not representative of the actual flash contents. See this: AM263P4-Q1: UniFlash Feature Request : Memory Read of OSPI Flash - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

zhou nanyi said:
This issue prevents the flash memory from booting correctly

Consider that the cause might not be the flash contents since Memory read does not work.

0 Aswin Sankar 1 day ago

TI__Intellectual 2655 points

Hi Zhou,

After erasing via uniflash can you please try to read the flash using the memory browser feature in CCS. For this you can run an OSPI example that has DAC mode enabled in the sysconfig.

So once flash open is done, on entering the flash address in memory browser, the flash contents will be visible. This step can be used to ensure correct erase of flash

Once flash is done , the same method can be used to check the flash contents to ensure correct flashing of the code.

Can you try this on your setup ?

Regards,

Aswin