ardupilot/libraries/AP_ADSB/sagetech-sdk/calcChecksum.c

28 lines
436 B
C

/**
* @copyright Copyright (c) 2021 Sagetech, Inc. All rights reserved.
*
* @file calcChecksum.c
* @author Jacob.Garrison
*
* @date Mar 2, 2021
*
*/
#include "sgUtil.h"
/*
* Documented in the header file
*/
uint8_t calcChecksum(uint8_t *buffer, uint8_t len)
{
uint8_t sum = 0x00;
// Add all bytes excluding checksum
for (uint8_t i = 0; i < len - 1; ++i)
{
sum += buffer[i];
}
return sum;
}