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];
    buffer[0]=0xA5;
    buffer[9]=0x5A;
    buffer[1]=command;
    buffer[4]=status;
    for(int i=2;i<4;i++){
        static int num=0;
        buffer[i]=(value>>num) & 0xFF;
        num=8;
    }
    for(int i=5;i<9;i++){
        static int num=0;
        buffer[i]=(checksum>>num) &0xFF;
        num+=(8);
    }
    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