CRC-4 calculation for SENT- Interface

[blackhack999]

Hello,

i have a SENT- Signal and try to create a VI which is calculate the CRC-4. I did not make it. The polynom is x4+x3+x2+1 and the seed value is 0101. I need a VI which is calculate the CRC-4 for the SENT- Signal.

Maybe someone can help me?

Best regards

Sebastian

　

　

[crossrulz]

Do you have examples of inputs and expected outputs?  There are many variations on CRCs and it is hard to get it figured out without some test data.

[Stephan_D]

Hey Sebastian,

you dont need to write the CRC check by yourself. This is already done and can be found here:

SENT Driver API - National Instruments - National Instruments
http://sine.ni.com/nips/cds/view/p/lang/en/nid/211171

Community: SENT Communication Protocol Reference Example in LabVIEW FPGA - National Instruments
https://decibel.ni.com/content/docs/DOC-22370

Both examples include a VI for the CRC check.

Regards, Stephan