Serialized Data Buffer

Code

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

void build_packet(uint8_t command, uint16_t value, uint8_t status, uint32_t checksum) {
    uint8_t buffer[10];
    printf("%d ",buffer[0]=165);
    printf("%d ",buffer[1]=command);
    printf("%d ",buffer[2]=(value&0xff));
    printf("%d ",buffer[3]=(value&0xff00)>>8);
    printf("%d ",buffer[4]=status);
    printf("%d ",buffer[5]=(checksum&0xff));
    printf("%d ",buffer[6]=(checksum&0xff00)>>8);
    printf("%d ",buffer[7]=(checksum&0xff0000)>>16);
    printf("%d ",buffer[8]=(checksum&0xff000000)>>24);
    printf("%d",buffer[9]=90);

    // Your logic to fill buffer
    // Then print buffer
}

int main() {
    uint8_t cmd, status;
    uint16_t val;
    uint32_t crc;

    scanf("%hhu %hu %hhu %u", &cmd, &val, &status, &crc);
    build_packet(cmd, val, status, crc);
    return 0;
}

Solving Approach