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ST7580 Modem UART Package CRC-32 Calculation Error

Question asked by hatipoglu.oner.001 on Oct 16, 2015
Latest reply on Oct 18, 2015 by hatipoglu.oner.001
Dear All,

I tried to implement my own protocol for PLC modem with another company MCU. But When I calculate CRC32, it returns 32bir diffrent CRC and ST7580 ignore my package.

For example;
02 09 50 04 01 23 45 67 89 AB CD EF 1D 04

STM32-ST7580 communicaiton package. CRC is 1D 04 and only payload is added to CRC32-Little endian calculation.

But when I calculate, CRC value is 0x45BEBFF6...

How can I solve this issue?

Please help me..

best regards.