#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 pack;
// pack.start = *(buffer);
// pack.command = *(buffer + 1);
// pack.data = (*(buffer + 2)) | (*(buffer + 3) << 8);
// pack.crc = *(buffer + 4);
// pack.end = *(buffer + 5);
// printf("Start: %u\n",pack.start);
// printf("Command: %u\n",pack.command);
// printf("Data: %u\n",pack.data);
// printf("CRC: %u\n",pack.crc);
// printf("End: %u\n",pack.end);
Packet *pkt = (Packet *)buffer;
printf("Start: %u\n",pkt->start);
printf("Command: %u\n",pkt->command);
printf("Data: %u\n",pkt->data);
printf("CRC: %u\n",pkt->crc);
printf("End: %u\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;
}
Input
165 1 52 18 119 90
Expected Output
Start: 165 Command: 1 Data: 4660 CRC: 119 End: 90