#include "uart.h"

void init_uart(uint16_t baud) {
    // Configure UART pin directions
    PORTB.DIR &= ~PIN1_bm;
    PORTB.DIR |= PIN0_bm;
    // Set the baudrate
    USART3.BAUD = (uint16_t)USART3_BAUD_RATE(baud);
    // Enable UART TX & RX
    USART3.CTRLB |= USART_TXEN_bm;
}

void USART3_sendChar(char c) {
    // Hold the code while the UART is not ready to send
    while (!(USART3.STATUS & USART_DREIF_bm)) { ; }
    // UART is ready, send the character.
    USART3.TXDATAL = c;

}

int USART3_printChar(char c, FILE *stream) {
    USART3_sendChar(c);
    return 0;
}