CCM SelfTest Interrrupt

zhang xiaohong said:

will the diagnostic type setting CCMR4F_SELF_TEST trigger an interrupt?

It depends on your configuration. The interrupt for ESM group1 channels are not enabled by default. To enable it, please set bit 31 (CCM-R4 - self-test failed) of ESMIESR1 register.

zhang xiaohong said:

What is the difference between CCMR4F_SELF_TEST and CCMR4F_ERROR_FORCING_TEST?

CCMR4F_SELF_TEST: the CCM-R4F checks itself for faults. The CCM-R4F generates Compare Match Test patterns, and Compare Mismatch Test patterns, and feeds them to the inputs of CCM-R4F module, and compare them. Any fault detected inside the CCM-R4F will be flagged by ESM error “CCM-R4F -self-test” (ESM 1.31)

CCMR4F_ERROR_FORCING_TEST: similar to the Compare Mismatch Test operation of self-test mode in which an unequal vector is applied to the CCM-R4F CPU signal ports. The error forcing mode forces the compare mismatch to actually assert the compare error output signal. This ensures that faults in the path between CCM-R4F and ESM is detected. The ESM 1.31 (CCM-R4F self-test error) and ESM 2.2 (CCM-R4F - compare) will be set.