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Whilst doing the safety analysis of our project, we have been driven by the recommendations in the Safety Manual SPNU550B. Of particular interest are the following sections:
7.35 FEE Contents Check by Hardware CRC
7.39 Flash Contents Check by Hardware CRC
Our analysis links these to the following Safety Feature IDs;
This is all fine, what is confusing me is that I can't find cover for OTP4B in the SafeTI Hercules
Diagnostic Library; all of the other IDs trace to the SL_CRC_Calculate fn whereas:
OTP4B | Periodic hardware CRC check of OTP contents | Not available | Not in scope of this release |
Hi Marcus,
OTP4A and OTP4B are about the data programed into the OTP, this can be verified with the CRC module on TMS570. I think the API SL_CRC_Calculate can be used to calculate the CRC of OTP content.