Extract Packet Fields from Byte Stream

Code

#include <stdio.h>
#include <stdint.h>

void print_packet_fields(uint8_t *buffer) {
    uint8_t start = buffer[0];
    uint8_t command = buffer[1];
    uint16_t data = buffer[2] | (buffer[3] << 8);
    uint8_t crc = buffer[4];
    uint8_t end = buffer[5];
    printf("Start: %u\n", start);
    printf("Command: %u\n", command);
    printf("Data: %u\n", data);
    printf("CRC: %u\n", crc);
    printf("End: %u", end);
}

int main() {
    uint8_t buffer[6];
    // Nhập liệu: 165 1 52 18 119 90
    for (int i = 0; i < 6; i++) {
        scanf("%hhu", &buffer[i]);
    }
    print_packet_fields(buffer);
    return 0;
}

Solving Approach

 

 

 

Upvote
Downvote
Loading...

Input

165 1 52 18 119 90

Expected Output

Start: 165 Command: 1 Data: 4660 CRC: 119 End: 90