CLASSB_FlashCRCGenerate

Function

Copyuint32_t CLASSB_FlashCRCGenerate(uint32_t start_addr, uint32_t test_size);

Summary

Generates CRC-32 checksum for a given memory area.

Description

This function runs CRC-32 algorithm with the polynomial 0xEDB88320 and returns the generated checksum. It uses table based approach where the table is generated during the execution. It uses 0xffffffff as the initial value.

Precondition

None.

Parameters

start_addr - Starting address of the memory block.

test_size - Size of the memory block.

Returns

CLASSB_TEST_STATUS - Status of the test.

Example

Copyuint32_t crc_val = 0;
// Generate CRC-32 for the internal Flash.
crc_val = CLASSB_FlashCRCGenerate(0, 0xFE000);

Remarks

This function is used inside the Class B library to generate CRC-32 of the internal Flash memory but it can be used on any contiguous memory area.