memcpy example

memcpyexample.c

#include <stdio.h>
#include <string.h>
#include <stdint.h> //uint8_t and friends



int main(void){
    uint8_t settings[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}; // preamble, stx and other stuff must be defined here
    char text[] = "hello world";
    
    uint8_t message[100]; // this is the buffer where we put all the data that must be sent out
    uint8_t i;

    memcpy(message, settings, sizeof(settings)/sizeof(uint8_t));            // copy settings to the message buffer
    memcpy(message+sizeof(settings)/sizeof(uint8_t), text, sizeof(text));   // append text to the message buffer (they must be after settings)

    for (i=0; i<20; i++) {
        printf("[%02d] %02X %c\n", i, message[i], message[i]);
    }

    return 0;
}