Serial I/O. More...

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Data Structures
struct	uartStruct

Macros
#define	UART0_BAUD 9600

#define	UART0_RXBUF_SIZE 64

#define	UART0_TXBUF_SIZE 64

#define	UART0_RXBUF_MASK ( UART0_RXBUF_SIZE - 1 )

#define	UART0_TXBUF_MASK ( UART0_TXBUF_SIZE - 1 )

#define	TRUE 1

#define	FALSE 0

Functions
struct uartStruct *	uart_init (const uint8_t port)

void	uart_shutdown (const uint8_t port)
	shutdown the usart port.

void	uart_get_msg (const uint8_t port, char *s)

void	uart_putchar (const uint8_t port, const char c)

void	uart_printstr (const uint8_t port, const char *s)

Variables
volatile struct uartStruct *	uartPtr

Detailed Description

Serial I/O.

Macro Definition Documentation

◆ UART0_BAUD

#define UART0_BAUD 9600

UART 0 baud rate

◆ UART0_RXBUF_MASK

#define UART0_RXBUF_MASK ( UART0_RXBUF_SIZE - 1 )

RX buffers mask, used to check the proper size and if we are going out of size.

◆ UART0_RXBUF_SIZE

#define UART0_RXBUF_SIZE 64

RX buffers size

◆ UART0_TXBUF_MASK

#define UART0_TXBUF_MASK ( UART0_TXBUF_SIZE - 1 )

TX buffers mask.

◆ UART0_TXBUF_SIZE

#define UART0_TXBUF_SIZE 64

TX buffers size

Function Documentation

◆ uart_get_msg()

void uart_get_msg	(	const uint8_t	port,
		char *	s
	)

get the message from the RX buffer.

port the serial port. s the string to copy the message to.

Bug:

multiport not implemented.

this function should be atomic, cannot be interrupted while resetting the pointer.

◆ uart_printstr()

void uart_printstr	(	const uint8_t	port,
		const char *	s
	)

Send a C (NUL-terminated) string to the serial port.

port the serial port. s the string to send.

◆ uart_putchar()

void uart_putchar	(	const uint8_t	port,
		const char	c
	)

Send character c to the serial port, wait until tx holding register is empty.

port the serial port. c the char to send.

Variable Documentation

◆ uartPtr

volatile struct uartStruct* uartPtr

Global UART rxtx buffers pointer used inside the ISR routine.

Data Structures

Macros

Functions

Variables