TDA4VM: R5F MCU Domain Lockstep Compare Mode

Tool/software:

Hello Texas Instruments,

We are conducting an experiment involving the SDL CCM module on the R5F MCU domain CPU and seek clarification regarding its operational status.

We executed the following SDL CCM API calls:

1. SDL_CCM_init(SDL_CCM_MCU_R5F0);
   • Result: SDL_PASS
2. SDL_CCM_selfTest(SDL_CCM_MCU_R5F0, SDL_CCM_MONITOR_TYPE_OUTPUT_COMPARE_BLOCK, SDL_CCM_SELFTEST_TYPE_NORMAL, 0U, CCM_SELF_TEST_TIMEOUT_CYCLES);
   • Result: SDL_PASS

Given that both functions returned SDL_PASS, our question is whether this outcome is sufficient to confirm that:

• The core is operating in lockstep
• The CPU compare mode is enabled for SDL_CCM_MCU_R5F0.
• Active monitoring by the CCM module is engaged and if any fault took place an ESM interrupt will be fired..

If these two successful API calls do not provide definitive confirmation, please specify any further checks or verification steps required to ascertain the active lockstep operation and monitoring status.

Thank you.