hal_usart.c File Reference

USART HAL functions for ATmega328P HAL driver. More...

#include "hal_usart.h"
#include "hal_internals.h"
#include <avr/io.h>

Macros
#define	F_CPU   16000000UL

Functions
enum usart_result	usart_init (struct usart_t *usart)
	Initialize USART. More...
enum usart_result	usart_transmit (struct usart_t *usart, uint8_t *data, uint16_t len)
	Transmit data over USART. More...
enum usart_result	usart_receive (struct usart_t *usart, uint8_t *data, uint16_t len)
	Receive data over USART. More...

Detailed Description

USART HAL functions for ATmega328P HAL driver.

Author

Ceyhun Şen

Function Documentation

usart_init()

enum usart_result usart_init

(

struct usart_t *

usart

)

Initialize USART.

Parameters

usart

USART struct.

usart_receive()

enum usart_result usart_receive	(	struct usart_t *	usart,
		uint8_t *	data,
		uint16_t	len
	)

Receive data over USART.

Parameters

usart	USART struct.
data	Data buffer that will hold read data from USART buffer.
len	Data buffer length.

usart_transmit()

enum usart_result usart_transmit	(	struct usart_t *	usart,
		uint8_t *	data,
		uint16_t	len
	)

Transmit data over USART.

Parameters

usart	USART struct.
data	Data buffer that will be written to USART buffer.
len	Data buffer length.