MC33771C CRC

[alessandro_piazza]

Hi, can anyone send me sample code for crc calculation? I have some problem in generating correct crc...

[Patrick_Pavle]

Hi @TomasVaverka 

Why is 0x42 used as the seed value in the code? Shouldn´t it be 0FF? 

[TomasVaverka · Accepted solution]

Hi Alessandro,

Attached you can find the CRC calculation software implemented in our KL25Z MCU.

BR, Tomas

[alessandro_piazza]

Hi Tomas, Thanks!

I've just tried it but it doesn't function (I used the sample messages on the datasheet to test crc result).

I think they use a different polynomial (0x2F), also seed is different.

[alessandro_piazza]

Hi Tomas, I'm sorry it was correct!