uart_sam.c File Reference

UART functions.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include "conf_example.h"
#include "uart.h"
#include "main.h"
#include "ui.h"

Functions
static Usart *	get_usart (uint8_t port)
	ISR (USART_HANDLER_0)
	ISR (USART_HANDLER_1)
void	uart_close (uint8_t port)
	Closes communication line. More...
void	uart_config (uint8_t port, usb_cdc_line_coding_t *cfg)
	Configures communication line. More...
void	uart_open (uint8_t port)
	Opens communication line. More...
void	uart_rx_notify (uint8_t port)
	Called by CDC interface Callback running when CDC device have received data. More...
static void	usart_handler (uint8_t port)

Variables
static sam_usart_opt_t	usart_options

static Usart* get_usart ( uint8_t  port )

static

References USART_BASE_0, and USART_BASE_1.

Referenced by uart_config(), uart_open(), uart_rx_notify(), and usart_handler().

ISR

(

USART_HANDLER_0

)

References usart_handler().

ISR

(

USART_HANDLER_1

)

References usart_handler().

void uart_close

(

uint8_t

port

)

Closes communication line.

References USART_BASE_0, USART_BASE_1, USART_DISABLE_0, USART_DISABLE_1, and usart_disable_interrupt().

Referenced by main_cdc_disable().

void uart_config	(	uint8_t	port,
		usb_cdc_line_coding_t *	cfg
	)

Configures communication line.

Parameters

cfg	line configuration

References sam_usart_opt_t::baudrate, usb_cdc_line_coding_t::bCharFormat, usb_cdc_line_coding_t::bDataBits, usb_cdc_line_coding_t::bParityType, CDC_PAR_EVEN, CDC_PAR_MARK, CDC_PAR_NONE, CDC_PAR_ODD, CDC_PAR_SPACE, CDC_STOP_BITS_1, CDC_STOP_BITS_1_5, CDC_STOP_BITS_2, sam_usart_opt_t::channel_mode, sam_usart_opt_t::char_length, usb_cdc_line_coding_t::dwDTERate, get_usart(), LE32_TO_CPU, sam_usart_opt_t::parity_type, sam_usart_opt_t::stop_bits, sysclk_get_peripheral_hz(), usart_disable_interrupt(), usart_enable_interrupt(), usart_enable_rx(), usart_enable_tx(), usart_get_interrupt_mask(), and usart_init_rs232().

void uart_open

(

uint8_t

port

)

Opens communication line.

References get_usart(), pmc_enable_periph_clk(), sysclk_get_peripheral_hz(), USART_ENABLE_0, USART_ENABLE_1, usart_enable_interrupt(), usart_enable_rx(), usart_enable_tx(), USART_ID_0, USART_ID_1, usart_init_rs232(), USART_INT_LEVEL_0, and USART_INT_LEVEL_1.

Referenced by main_cdc_enable().

void uart_rx_notify

(

uint8_t

port

)

Called by CDC interface Callback running when CDC device have received data.

References get_usart(), usart_enable_interrupt(), usart_enable_tx(), and usart_get_interrupt_mask().

static void usart_handler ( uint8_t  port )

static

References get_usart(), udi_cdc_multi_getc(), udi_cdc_multi_is_rx_ready(), udi_cdc_multi_is_tx_ready(), udi_cdc_multi_putc(), udi_cdc_multi_signal_framing_error(), udi_cdc_multi_signal_overrun(), ui_com_error(), ui_com_overflow(), ui_com_rx_start(), ui_com_rx_stop(), ui_com_tx_start(), ui_com_tx_stop(), usart_disable_interrupt(), usart_disable_tx(), usart_enable_rx(), usart_get_status(), usart_read(), usart_reset_rx(), and usart_write().

Referenced by ISR().

sam_usart_opt_t usart_options

static