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[1]=command;
    uint8_t value1=value&(0xFF);
    uint8_t value2=(value>>8)&(0xFF);
    buffer[2]=value1;
    buffer[3]=value2;
    buffer[4]=status;
    uint8_t chk1,chk2,chk3,chk4;
    chk1=checksum&(0xFF);
    chk2=(checksum>>8)&(0xFF);
    chk3=(checksum>>16)&(0xFF);
    chk4=(checksum>>24)&(0xFF);
    buffer[5]=chk1;
    buffer[6]=chk2;
    buffer[7]=chk3;
    buffer[8]=chk4;
    buffer[9]=0x5A;
    
    // Your logic to fill buffer
    // Then print buffer
    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