porklib: Simple library for programming Arduino in C
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avr-lib/examples/uart_stream/main.c

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//
// Example of using UART with stream
//
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <stdint.h>
#include "lib/uart.h"
#include "lib/stream.h"
void main()
{
// Enable UART with baud rate 9600
uart_init(9600);
// Functions from `stream.h` will work with any stream
// "uart" is a pointer to the UART stream
put_str(uart, "UART is 1337");
put_nl(uart);
put_str_P(uart, PSTR("String from program memory!!!"));
put_nl(uart);
put_u16f(uart, 31416, 4);
put_i32(uart, 123456789L);
put_nl(uart);
put_x16(uart, 0xAC01);
put_nl(uart);
put_x64(uart, 0xABAD1DEADEADBEEF);
while(1);
}