#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 pkt; pkt.start = buffer[0]; pkt.command = buffer[1]; pkt.data = buffer[2]|(buffer[3]<<8)&0xFF00; pkt.crc = buffer[4]; pkt.end = buffer[5]; printf("Start: %d\n",pkt.start); printf("Command: %d\n",pkt.command); printf("Data: %d\n",pkt.data); printf("CRC: %d\n",pkt.crc); printf("End: %d\n",pkt.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