[SOLVED] CRC checksum(uart protocal)

[sankarapandi]

0x55, 0x0B, 0X03, 0X21, 0X00, 0X1A, 0X02, 0X31, 0X01, 0X03, 0X33, 0X00, 0X0A

torque sensor give this format data and 0x7B,0X9D this value crc checsum and
how to calculate the crc checksum value each step by step explain

 

[KlausST]

Hi,

This has nothing to do with UART at all. UART is no protocol and UART will not calculate CRC.

This all is software, and the sensor datasheet tells you what algorithm is used to calculate the CRC.

There are online tutorials for the algorithms and code and there are online CRC calculators.
Please do a simple internet search on your own.

And - as always - if you need help with code:
* show what you have done so far (show your code)
* what you expect it to do
* how your tested it / test conditions
* how it behaves instead
* what language / compiler you use
* what microcontroller you use

Klaus

 

[Kurenai_ryu]

just to mention that with https://crccalc.com/ you can check several algortihms,
i set your data like
55 0B 03 21 00 1A 02 31 01 03 33 00 0A in HEX format

the first algorithm in CRC16 got your response:

Algorithm	Result	Check	Poly	Init	RefIn	RefOut	XorOut
CRC-16/ARC	0x7B9D	0xBB3D	0x8005	0x0000	true	true	0x0000