CRC

[HyperUniverse]

Hi,

Can anybody explain me how to implement a CRC in my project?
Basically I need to Tx a string, and then I need to Rx it.

I tried without a CRC and is not working.
Now, please do not give me a lot of theory, how it suppose to work.
If anybody is willing to help me, then give me an example, please.
(I learn better from analising a working example, rather than reading the theory).

Lets say I have this string to send:
Preamble: 0x55
Data: 0xF10010650101108E42E9000800C4000000
End: 0xAA

Please give me an example of how to do a CRC on this string on the Tx side, and then how to manipulate it after I Rx it.

Preamble and End will always be the same, of course.
Data will always be different (same length).

Thank you.

[Bigpit]

Hi,

Before you implement the CRC procedure, maybe you should try to make your Tx-Rx connection to work; then add the CRC result to the data you‘d like to send.

About the CRC calculation itself, you can find what you’re looking for on this site : http://www.lammertbies.nl/comm/info/crc ... ation.html

Regards
Bigpit

[kang99]

Hi, any library for calculate ?

bye

[filip]

Hi,

Currently, there is no CRC library in the compiler.

Regards,
Filip.

[sasa72]

kang99,

Actually, you do not need a library at all. All CRC functions are trivial to make.