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验证求和CRC计算

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yelvlab 2024-12-23 20:00:58 +08:00
parent f550619217
commit dc8bff918d
1 changed files with 10 additions and 8 deletions
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18
src/rs485.c
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@ -39,15 +39,17 @@ void rs485_config(void) {
void process_command(uint8_t *cmd, size_t length) {
char combined_str[3];
// printf("\n");
// printf("%s\n", combined_str);
// }
// printf("length: %d\r\n", length);
printf("%c", calculate_crc(cmd, length - 2));
printf("%c", cmd[length - 2]);
if (calculate_crc(cmd, length - 2) == cmd[length - 2]) {
printf("CRC check success\r\n");
} else {
printf("CRC check failed\r\n");
return;
}
if (cmd[0] == 0xD5 && cmd[1] == 0x03) {
if (cmd[2] == 0x02) {
sprintf(combined_str, "%c%c", cmd[3], cmd[4]);