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/*
* src/uart.h
* (c) 2021 Jonas Gunz <himself@jonasgunz.de>
* License: MIT
*/
/*
* Interrupt controlled UART with
* ringbuffers to TX and RX
*/
#ifndef _UART_H_
#define _UART_H_
#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdint.h>
#include <string.h>
#ifndef BAUD
#warning "BAUD not defined. Dafaulting to 9600"
#define BAUD 9600
#endif
#ifndef F_CPU
#error "F_CPU not defined"
#endif
#define UBRR F_CPU/16/BAUD-1
void uart_init();
uint8_t uart_putchar(char _c);
uint8_t uart_getchar(char *_c);
void uart_putstring(char *_s);
#endif
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