45. Serialized Data Buffer

#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 *ptr = buffer;
    *ptr = 0xA5;
    ptr++;
    *ptr = command;
    ptr++;
    *((uint16_t *)ptr) = value;
    ptr +=2;
    *ptr = status;
    ptr++;
    *((uint32_t *)ptr) = checksum;
    ptr+=4;
    *ptr = 0x5A;
    for(uint8_t i=0;i<10;i++)
    {
        printf("%u ",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;
}