TMS320F28027: Integrating the IEC60730 STL Library into a Project

From examining the code and reading that section of the user's guide, it's not clear to me why it says the STL_generateCrc function should be run from a section that is not checked by CRC. The Calculate_PSA_CRC() function that is at the heart of the CRC calculation is always run from RAM ultimately. I think the bigger reason Flash A was not checked was because that is where the gGoldenCRC table was stored. I believe if you set your start and end addresses to avoid the region where you've stored gGoldenCRC though, you may still be able to test the rest of the sector.

According to the Flash API guide, the smallest amount of Flash that may be erased at a time is a single sector, so erasing part of a sector isn't possible.

Whitney

Dear Whitney,

thanks for the clear and comprehensive answer.

I take this opportunity to ask you for further clarification.

We have carried out a similar integration work with an STM microcontroller.
In their documentation regarding CPU safety tests, they indicate the following test:

• TM2: implements the test of arithmetic functions
• TM3: implements the test of multiplier functions
• TM4: implements the test of control flow instructions
• TM5: implements the test of load/store unit(s)
• TM6: implements the test of shift and rotate functions
• TM7: implements the test of both stack pointers, MSP and PSP
• TM8: implements the test of pipeline functions

Are there equivalent tests in your libraries?

Thank you

Federico

The CPU-related tests in this particular IEC 60730 library are primarily testing the registers. We do have more extensive CPU tests on our newer devices (see the HWBIST and STL items in this document), but not for the F28027.

Whitney