usart_serial.h File Reference

USART Serial wrapper service for the SAM D/L/C/R devices.

Copyright (c) 2009-2018 Microchip Technology Inc. and its subsidiaries.

#include "compiler.h"
#include "status_codes.h"
#include "usart.h"

Serial Management Configuration
typedef Sercom *	usart_inst_t
static bool	usart_serial_init (struct usart_module *const module, usart_inst_t const hw, const struct usart_config *const config)
	Initializes the Usart in serial mode. More...
static enum status_code	usart_serial_putchar (struct usart_module *const module, uint8_t c)
	Sends a character with the USART. More...
static void	usart_serial_getchar (struct usart_module *const module, uint8_t *c)
	Waits until a character is received, and returns it. More...
static enum status_code	usart_serial_write_packet (struct usart_module *const module, const uint8_t *tx_data, uint16_t length)
	Send a sequence of bytes to USART device. More...
static enum status_code	usart_serial_read_packet (struct usart_module *const module, uint8_t *rx_data, uint16_t length)
	Receive a sequence of bytes from USART device. More...

typedef Sercom* usart_inst_t

static void usart_serial_getchar ( struct usart_module *const  module, uint8_t *  c  )

inlinestatic

Waits until a character is received, and returns it.

Parameters

[in,out]	module	Software instance of the USART.
[out]	c	Destination for the read character.

References STATUS_OK, and usart_read_wait().

static bool usart_serial_init ( struct usart_module *const  module, usart_inst_t const  hw, const struct usart_config *const  config  )

inlinestatic

Initializes the Usart in serial mode.

Parameters

[in,out]	module	Software instance of the USART to initialize.
[in]	hw	Base address of the hardware USART.
[in]	config	Configuration settings for the USART.

Return values

true	if the initialization was successful
false	if initialization failed (error in baud rate calculation)

References STATUS_OK, and usart_init().

static enum status_code usart_serial_putchar ( struct usart_module *const  module, uint8_t  c  )

inlinestatic

Sends a character with the USART.

Parameters

[in,out]	module	Software instance of the USART.
[in]	c	Character to write.

Returns

Status code

References STATUS_OK, and usart_write_wait().

static enum status_code usart_serial_read_packet ( struct usart_module *const  module, uint8_t *  rx_data, uint16_t  length  )

inlinestatic

Receive a sequence of bytes from USART device.

Parameters

[in,out]	module	Software instance of the USART.
[out]	rx_data	Data buffer to store the read data into.
[in]	length	Length of data to read.

References usart_read_buffer_wait().

static enum status_code usart_serial_write_packet ( struct usart_module *const  module, const uint8_t *  tx_data, uint16_t  length  )

inlinestatic

Send a sequence of bytes to USART device.

Parameters

[in,out]	module	Software instance of the USART.
[in]	tx_data	Data buffer to read the data to write from.
[in]	length	Length of data to write.

References usart_write_buffer_wait().

Referenced by sio2host_tx().