We've had a couple of R7FA6E10F2CFP that only seem to program once, and that's it. We are using P&E programmers in our production, and no bits are changing in the chip configuration. They will no longer erase. I've tried downloading Renesas Flash Programmer, and tried using the J-Link to try to clear it up, but it just reports that the erase operation failed. Is there a way to get them working again? More importantly, what causes them to get this way?
What about the values of below registers ?
Which compiler/IDE have you used to generated the program file you program on the devices ?
Those are 0xFFFFFFFF as well, and the entire option setting region from 0x0100A100-0x0100A2FF is 0xFFFFFFFF. The program is generated with E2Studio and GCC. FSP version is 5.0.
It seems that the device is damaged somehow. Just in case, what does J-Link commander returns when you try to erase ?