MCU Errata vs HAL, LL

[DrDro]

Hi there,

this is an general question.

Every serious engineer walks thru errata document as it gets published.

So do I now.

Do I have to review every HAL / LL function which may coincide with erratic behaviour?

Is proposed in errata workaround already implemented in HAL / LL ?

[SofLit · Accepted solution]

Hello,

To my knowledge most of the errata are not implemented in the HAL. Few of them are implemented because I think it's generic and implementable in the HAL while others depend on the case and the user usage. 

Example, this errata for STM32H743 rev Y:

Was implemented in system_stm32h7xx.c: 

  /* Change  the switch matrix read issuing capability to 1 for the AXI SRAM target (Target 7) */
  if((DBGMCU->IDCODE & 0xFFFF0000U) < 0x20000000U)
  {
    /* if stm32h7 revY*/
    /* Change  the switch matrix read issuing capability to 1 for the AXI SRAM target (Target 7) */
    *((__IO uint32_t*)0x51008108) = 0x00000001U;
  }