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Unsecure S12ZVC

Question asked by yuntianlu on Dec 22, 2015
Latest reply on Dec 30, 2015 by Radek Sestak

Hello, All

 

        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.       

 

Thank you

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