Is Performance Monitor Unit (PMU) foreseen also e.g. for realization of interrupt period
monitoring, where the interrupt is executing safety functions or is PMU usage expected
more for debugging and profiling purposes?
I just found the answer in spnu511a.pdf (Safety Manual for TMS570LS31x/21x and RM48x Hercules™ ARM® Safety Critical Microcontrollers)
- page 26, section 5.7.4
Thanks for posting and verifying your answer, sir!
As noted in the safety manual, the primary function of the PMU is for profiling code. While it was intended for development purposes, it is also possible to use the PMU to perform a plausibility check on proper CPU operation.
Thank you very much for the reply. Excellent, it clarified the topic for me.
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