adp_interface_spi.c File Reference

ADP service implementation.

Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>
#include <system.h>
#include <asf.h>
#include "adp_interface.h"

Functions
enum status_code	adp_interface_init (void)
	Initialize EDBG SPI communication for SAM0. More...
enum status_code	adp_interface_read_response (uint8_t *rx_buf, uint16_t length)
	Read response on SPI from PC. More...
static void	adp_interface_send_start (void)
	Send SPI start condition. More...
static void	adp_interface_send_stop (void)
	Send SPI stop condition. More...
static void	adp_interface_transceive (uint8_t *tx_data, uint8_t *rx_data, uint16_t length)
	Sends and reads data byte on SPI. More...
void	adp_interface_transceive_procotol (uint8_t *tx_buf, uint16_t length, uint8_t *rx_buf)
	Sends and reads protocol packet data byte on SPI. More...

Variables
struct spi_module	edbg_spi
struct spi_slave_inst	slave

enum status_code adp_interface_init

(

void

)

Initialize EDBG SPI communication for SAM0.

References spi_master_config::baudrate, edbg_spi, spi_config::master, spi_config::mode_specific, spi_config::mux_setting, spi_config::pinmux_pad0, spi_config::pinmux_pad1, spi_config::pinmux_pad2, spi_config::pinmux_pad3, PINMUX_UNUSED, slave, spi_attach_slave(), spi_enable(), spi_get_config_defaults(), spi_init(), spi_slave_inst_get_config_defaults(), spi_slave_inst_config::ss_pin, and system_init().

enum status_code adp_interface_read_response	(	uint8_t *	rx_buf,
		uint16_t	length
	)

Read response on SPI from PC.

return Status

Parameters

[in]	rx_buf	Pointer to receive the data
[in]	length	The length of the read data
[out]	rx_buf	Pointer to store the received SPI character

References adp_interface_send_start(), adp_interface_send_stop(), edbg_spi, spi_read_buffer_wait(), and status.

static void adp_interface_send_start ( void  )

static

Send SPI start condition.

References edbg_spi, slave, and spi_select_slave().

Referenced by adp_interface_read_response(), and adp_interface_transceive_procotol().

static void adp_interface_send_stop ( void  )

static

Send SPI stop condition.

References edbg_spi, slave, and spi_select_slave().

Referenced by adp_interface_read_response(), and adp_interface_transceive_procotol().

static void adp_interface_transceive ( uint8_t *  tx_data, uint8_t *  rx_data, uint16_t  length  )

static

Sends and reads data byte on SPI.

Parameters

[in]	data	Data byte to send
[in]	tx_data	SPI character to transmit
[out]	rx_data	Pointer to store the received SPI character

References edbg_spi, and spi_transceive_buffer_wait().

Referenced by adp_interface_transceive_procotol().

void adp_interface_transceive_procotol	(	uint8_t *	tx_buf,
		uint16_t	length,
		uint8_t *	rx_buf
	)

Sends and reads protocol packet data byte on SPI.

Parameters

[in]	tx_buf	Pointer to send the protocol packet data
[in]	length	The length of the send protocol packet data
[out]	rx_buf	Pointer to store the received SPI character

References adp_interface_send_start(), adp_interface_send_stop(), and adp_interface_transceive().

struct spi_module edbg_spi

Referenced by adp_interface_init(), adp_interface_read_response(), adp_interface_send_start(), adp_interface_send_stop(), and adp_interface_transceive().

struct spi_slave_inst slave