Hardware UART
[Architecture and hardware specific services]

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Detailed Description

Functions for sending and receiving data via UART.

Note:

Currently, the UART is set to a fixed speed of 115200 Baud.

Files
file	uart.c
	UART implementation (license: GPLv2).
file	uart.h
	UART header (license: GPLv2).
Functions
void	uart_init ()
	Initializes the UART.
void	uart_connect_stdio ()
	Connects the UART with the I/O functions of the C Standard Library.
void	uart_putc (uint8_t c)
	Transmits a single character/byte via the UART.
void	uart_putc_hex (uint8_t b)
	Transmits a byte in hexadecimal ASCII representation via the UART.
uint8_t	uart_getc ()
	Receives a byte from the UART.
uint8_t	uart_getc_try ()
	Receives a byte from the UART without blocking.

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Function Documentation

void uart_putc

(

uint8_t

c

)

Transmits a single character/byte via the UART.

Parameters:

[in]

c

The byte to send.

void uart_putc_hex

(

uint8_t

b

)

Transmits a byte in hexadecimal ASCII representation via the UART.

Parameters:

[in]

b

The byte to transmit.

uint8_t uart_getc

(

)

Receives a byte from the UART.

Returns:

The byte received.

uint8_t uart_getc_try

(

)

Receives a byte from the UART without blocking.

Returns:

The byte received if available, 0 otherwise.