CCS/SW-EK-TM4C1294XL: the CRC result from the CRCDataProcess function

Nada Wael

Tool/software: Code Composer Studio

CRCDataProcess function always replaces the value in the CCM_CRCDIN register with the next element, so it calculates the CRC for each element and returns the CRC result for the last element only, right?

over 5 years ago

0 Bob Crosby over 5 years ago

TI__Guru 72500 points

No, computing a CRC is like doing a sum. The new result is a function of the previous result and the value written to CRCDIN. The previous result is in CRCSEED which needs to be initialized whenever the CRC of a new block of data is to be computed.

0 Nada Wael over 5 years ago in reply to Bob Crosby

Expert 1350 points

Ok thank you

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CCS/SW-EK-TM4C1294XL: the CRC result from the CRCDataProcess function