#include <stdio.h> #include <stdint.h> typedef struct { uint8_t start; uint8_t command; uint16_t data; uint8_t crc; uint8_t end; } Packet; void print_packet_fields(uint8_t *buffer) { // Overlay struct and print values Packet p; p.start = *(buffer); p.command = *(buffer + 1); p.data = *(buffer + 3) << 8 | (*(buffer + 2)); p.crc = *(buffer + 4); p.end = *(buffer + 5); printf("Start: %d\n", p.start); printf("Command: %d\n", p.command); printf("Data: %d\n", p.data); printf("CRC: %d\n", p.crc); printf("End: %d\n", p.end); } int main() { uint8_t buffer[6]; for (int i = 0; i < 6; i++) { scanf("%hhu", &buffer[i]); } print_packet_fields(buffer); return 0; }
Test Cases
Test Results
Input
165 1 52 18 119 90
Expected Output
Start: 165 Command: 1 Data: 4660 CRC: 119 End: 90