Line data    Source code

       1              : #include "can_common_declarations.h"
       2              : 
       3      5595298 : uint8_t calculate_checksum(const uint8_t *dat, uint32_t len) {
       4      5595298 :   uint8_t checksum = 0U;
       5     93043989 :   for (uint32_t i = 0U; i < len; i++) {
       6     87448691 :     checksum ^= dat[i];
       7              :   }
       8      5595298 :   return checksum;
       9              : }
      10              : 
      11      5595298 : void can_set_checksum(CANPacket_t *packet) {
      12      5595298 :   packet->checksum = 0U;
      13      5595298 :   packet->checksum = calculate_checksum((uint8_t *) packet, CANPACKET_HEAD_SIZE + GET_LEN(packet));
      14      5595298 : }
      15              : 
      16            0 : bool can_check_checksum(CANPacket_t *packet) {
      17            0 :   return (calculate_checksum((uint8_t *) packet, CANPACKET_HEAD_SIZE + GET_LEN(packet)) == 0U);
      18              : }