#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 my_packet; my_packet.start = *buffer; my_packet.command = *(buffer+1); my_packet.data = (*(buffer+3))<<8 | (*(buffer+2)); my_packet.crc = (*(buffer+4)); my_packet.end = (*(buffer+5)); printf("Start: %hhu\n", my_packet.start); printf("Command: %hhu\n", my_packet.command); printf("Data: %hu\n", my_packet.data); printf("CRC: %hhu\n", my_packet.crc); printf("End: %hhu", my_packet.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