Read temperature calibration value doesn't work

[Ping1]

Dear Support

I am using STM32H563, try to get internal Vref, and temperature working, and ADC conversion is OK, but when using macro  __HAL_ADC_CALC_VREFANALOG_VOLTAGE, and __HAL_ADC_CALC_TEMPERATURE to convert to Vref and temperature, it ends up a in HardFault_Handler(), I tried to read the address directly for the value like below:

Cal2 = (float)((int32_t)*TEMPSENSOR_CAL2_ADDR);

Cal1 = (float)((int32_t)*TEMPSENSOR_CAL1_ADDR);

And ends up same, no matter in Nucleo-H563 or my target board, please help!

Regards!

Ping

[mƎALLEm · Accepted solution]

Hello,

It's mostly due to this:  ICACHE enabled + reading from the OTP.. Refer to this article:

How to avoid a HardFault when ICACHE is enabled on the STM32H5 series