I am having trouble to unsecure S12ZVC controller using the ERASE_FLASH (0x95/d) command in BDC.
I tried ERASE_FLASH command on both secured and unsecured controllers, it doesn't work. The command was issued on BKGD pin through FPGA.
I am able to read the FSTAT register on unsecured controllers. The error flag ACCER in the FSTAT is set after ERASE_FLASH command is issued. Not sure if that is the reason. Not able to read the FSTAT register on secured controllers.
Any suggestion or code sample will be helpful.