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];
    uint8_t low, high, temp1, temp2, temp3, temp4;
    low |= ( value & 0xFF );
    high |= ( ( value>>8 ) & 0xFF );
    temp1 |= (checksum & 0xFF);
    temp2 |= ((checksum>>8) & 0xFF);
    temp3 |= ((checksum>>16) & 0xFF);
    temp4 |= ((checksum>>24) & 0xFF);



    buffer[0] = 0xA5;
    buffer[1] = command;
    buffer[2] = low;
    buffer[3] = high;
    buffer[4] = status;
    buffer[5] = temp1;
    buffer[6] = temp2;
    buffer[7] = temp3;
    buffer[8] = temp4;
    buffer[9] = 0x5A;

    for(int i=0; i<10; i++){
        printf("%d ",buffer[i]);
    }
}

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