adp_interface_twi.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>

Macros
#define	EDBG_TWI   EDBG_I2C_MODULE
#define	TIMEOUT   1000
#define	TWI_EDBG_SLAVE_ADDR   0x28

Functions
enum status_code	adp_interface_init (void)
	Initialize EDBG I2C communication for SAM0. More...
enum status_code	adp_interface_read_response (uint8_t *rx_buf, uint16_t length)
	Read response on I2C from PC. More...
static enum status_code	adp_interface_send (uint8_t *tx_buf, uint16_t length)
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...

Variables
struct i2c_master_module	i2c_master_instance

#define EDBG_TWI   EDBG_I2C_MODULE

Referenced by adp_interface_init().

#define TIMEOUT   1000

#define TWI_EDBG_SLAVE_ADDR   0x28

Referenced by adp_interface_read_response(), and adp_interface_send().

enum status_code adp_interface_init

(

void

)

Initialize EDBG I2C communication for SAM0.

References i2c_master_config::buffer_timeout, EDBG_TWI, i2c_master_enable(), i2c_master_get_config_defaults(), i2c_master_init(), i2c_master_instance, and system_init().

enum status_code adp_interface_read_response	(	uint8_t *	rx_buf,
		uint16_t	length
	)

Read response on I2C 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 i2c_master_packet::address, i2c_master_packet::data, i2c_master_packet::data_length, i2c_master_instance, i2c_master_read_packet_wait(), rx_buf, status, STATUS_ERR_IO, and TWI_EDBG_SLAVE_ADDR.

Referenced by adp_interface_transceive_procotol().

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

static

References i2c_master_packet::address, i2c_master_instance, i2c_master_write_packet_wait(), length, status, TWI_EDBG_SLAVE_ADDR, 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().

struct i2c_master_module i2c_master_instance

Referenced by adp_interface_init(), adp_interface_read_response(), adp_interface_send(), configure_i2c(), configure_i2c_callbacks(), configure_i2c_master(), edbg_eui_read_eui64(), i2c_write_complete_callback(), main(), main_cdc_disable(), nm_bus_deinit(), nm_bus_init(), run_i2c_full_speed_test(), run_i2c_init_test(), run_i2c_master_transfer_test(), setup_dma_descriptor(), and show_extension_boards_information().