I want to add EMCEM to my current code, but after adding it, I found that it goes into the Hard Fault Handler. However, if I remove EMCEM, my code will return to a working state.
I tried turning off both Fault Groups and DCM Faults to see if the problem was caused by EMCEM's detection, but it still didn't work.
I tried adjusting FREERTOS's TOTAL HEAP SIZE = 32768, TIMER TASK STACK DEPTH = 2048, and QUEUE REGISTRY SIZE = 10, but it didn't work.
The message says "bus fault," but before I added the EMCEM module, all functions worked fine, and there was no bus fault. I don't know why it says this.
Hi @Allen_863,
Can you check in the MC_ME PRTN1_COFB0_STAT register whether the ERM clock is running or not before the eMCEM, ERM initialization?
Thank you,
BR, Daniel
When configuring EMCEM, I didn't configure the clock. I only added the EMCEM module and added `eMcem_Init(&eMcem_Config_0)`. However, I checked the CLOCK configuration and it shows `ERM0_CLK = 40 MHz`. Is this correct?
Then I found the problem was in the `SAFETYBASE_REG_WRITE32( addr, ERM_SR_CLEAR_VAL_U32 );` operation of `eMcem_Erm_Init`. If I commented `SAFETYBASE_REG_WRITE32( addr, ERM_SR_CLEAR_VAL_U32 );`, the `HARD FAULT HANDLER` error wouldn't occur. However, this is the RTD driver, and I don't think I should modify it.
Hi @Allen_863,
Can you check in the MC_ME PRTN1_COFB0_STAT register whether the ERM clock is running or not before the eMCEM, ERM initialization?
Thank you,
BR, Daniel
I checked bit 23 of MC_ME PRTN1_COFB0_STAT and found it to be 0. Then I found the switch for PRTN1_COFB0_REQ23.
Thank you for your help.
