topic Re: Flash programmer task error during flash ID reading in CodeWarrior Development Tools

Flash programmer task error during flash ID reading

vikrep — Thu, 08 Aug 2024 14:46:03 GMT

I have a board with MCF5216 CPU.

I need update firmware from one to another board. I successfully created Flash_dump task with USBDM interface. It works for both board.

Then I create Flash_program task and its stopped during ID flash reading.

I attached diagnostic report.

Thank you

Re: Flash programmer task error during flash ID reading

Bio_TICFSL — Fri, 09 Aug 2024 14:07:19 GMT

Hello,

There is a method that depend of your flash,

There is a method listed in both datasheets (S29GL064S datasheet, SST39V6401B datasheet).

From Table 6 for the SST part, we can get the device ID from this sequence:

This is the same as the sequence (named Autoselect) for the Spansion part:

The SST datasheet also helpfully includes a timing diagram:

So:

Write: Address 0x555, data 0xXXAA (note that XX may be 00 or FF)
Write: Address 0x2AA, data 0xXX55
Write: Address 0x555, data 0xXX90
Read:  Address 0x0000, data <MFR ID>
Read:  Address 0x0001, data <Device ID>

Then issue an exit code (write 0xF0 to any address for both parts).

That should work consistently for both devices assuming the timing is solid.

Regards

Re: Flash programmer task error during flash ID reading

vikrep — Fri, 09 Aug 2024 14:47:24 GMT

Thank you for your reply.

I found that cpu was faulty. Today I soldered new chip and it works fine.