adp_interface_twi.c File Reference

ADP service implementation.

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

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

Macros
#define	TIMEOUT   1000
#define	TWI_EDBG_SLAVE_ADDR   0x28
Embedded debugger TWI interface definitions
#define	EDBG_TWI_MODULE   TWI0

Functions
enum status_code	adp_interface_init (void)
	Initialize EDBG TWI interface for SAM4S. More...
enum status_code	adp_interface_read_response (uint8_t *data, uint16_t length)
	Read data on TWI. More...
static enum status_code	adp_interface_send (uint8_t *tx_buf, uint16_t length)
	Send data on TWI. 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 I2C. More...

#define EDBG_TWI_MODULE   TWI0

Referenced by adp_interface_init(), adp_interface_read_response(), and adp_interface_send().

#define TIMEOUT   1000

#define TWI_EDBG_SLAVE_ADDR   0x28

Referenced by adp_interface_init(), adp_interface_read_response(), and adp_interface_send().

enum status_code adp_interface_init

(

void

)

Initialize EDBG TWI interface for SAM4S.

References EDBG_TWI_MODULE, twi_options::speed, sysclk_init(), TWI_EDBG_SLAVE_ADDR, and twi_master_setup().

enum status_code adp_interface_read_response	(	uint8_t *	data,
		uint16_t	length
	)

Read data on TWI.

Parameters

[out]	data	Pointer to place received data
[in]	length	Number of bytes to receive

References twi_packet::buffer, twi_packet::chip, data, EDBG_TWI_MODULE, ERR_IO_ERROR, twi_packet::length, status, TWI_EDBG_SLAVE_ADDR, and twi_master_read().

static enum status_code adp_interface_send ( uint8_t *  tx_buf, uint16_t  length  )

static

Send data on TWI.

Parameters

[in]	data	Pointer to data to send
[in]	length	Number of bytes to send

References twi_packet::chip, EDBG_TWI_MODULE, TWI_EDBG_SLAVE_ADDR, twi_master_write(), and tx_buf.

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 I2C.

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 I2C character

References adp_interface_read_response(), and adp_interface_send().