How to Use CRC using STM32 HAL Library

The Cyclic Redundancy Check (CRC) peripheral is used to verify data integrity efficiently using hardware acceleration.

Step-by-Step Guide:

  1. Enable CRC in STM32CubeMX:

    • Simply enable the CRC peripheral (no GPIOs required).

  2. Generate Code.

  3. Write Application Code:

uint32_t data_buffer[] = {0x12345678, 0xAABBCCDD, 0x11223344};
uint32_t crc = HAL_CRC_Calculate(&hcrc, data_buffer, 3);

Tips:

  • You can reinitialize the CRC calculator with HAL_CRC_Init() if needed.

  • CRC can be used to validate firmware images or memory blocks.