I want to send 7 bytes of data using HC12. If incorrect data is received then it is OK to wait for the next data. But it is important to be able to detect that the received data is correct as transmitted.

Microchip PIC and XC8.

What is the best method of doing this, please?

 

How about sending 8 bytes where the 8th byte is the most significant bits of the sum of the 7 bytes? I suspect this would be a pretty robust check sum.

 

How about sending 8 bytes where the 8th byte is the most significant bits of the sum of the 7 bytes? I suspect this would be a pretty robust check sum.

Would this be more reliable than including a crc8 byte?

 

Probably not, but a simpler algorithm