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Cannot Erase Flash

nate_domin
Associate
Posted on March 05, 2008 at 17:20

Cannot Erase Flash

1 REPLY 1
nate_domin
Associate
Posted on March 05, 2008 at 17:20

I'm trying to erase an STR710FZ2 and cannot seem to erase the chip (with J-Flash or IAR). But what's strange is it doesn't appear to be linked to a specific bank as I *am* able to erase some sectors (specifically B0F6, B0F7, B1F0, and B1F1).

This problem began to occur after an IAR programming sequence locked up and I had to abort the program by using task manager to stop the program. Since this failure I am able to connect to the chip via JTAG with the J-Flash utility or the IAR debugger but am unable to successfully erase the flash. Using the debugger I am able to read the FLASH_CR1 register and it is reporting 0xE6000010 which is some sort of LOCKED condition.