sam/applications/edbg_twi_information_interface/main.c File Reference

SAM EDBG TWI Information Interface Example.

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

#include <asf.h>
#include <string.h>
#include "conf_board.h"

Macros
#define	EDBG_ADDRESS   0x28;
	EDBG TWI interface address. More...
#define	EDBG_EXTEN_BOARDS_TOKEN   0xE1;
	Request token of EDBG TWI information interface. More...
#define	EDBG_KIT_DATA_TOKEN   0xD2;
#define	STRING_EOL   "\r"
#define	STRING_HEADER
#define	TIMEOUT   1000
#define	TWI_CLK   400000
	TWI Bus Clock 400kHz. More...

Functions
static void	configure_console (void)
	Configure the Console UART. More...
static void	configure_i2c_master (void)
	Function for configuring I2C master module. More...
static void	decode_board_info (uint8_t *buffer)
	Function for show the extension boards information. More...
int	main (void)
	Main application. More...
static void	show_extension_boards_information (void)
	Function for show the extension boards information. More...

Variables
uint8_t	extension_info [64]
uint8_t	extension_map [2]
	Extension board info structure. More...
uint16_t	maximum_voltage
uint16_t	minimum_current
uint16_t	minimum_voltage
twi_options_t	opt
	I2C related structure. More...
twi_packet_t	packet_rx
uint8_t	read_buffer [1024]
	Read buffer. More...

#define EDBG_ADDRESS   0x28;

EDBG TWI interface address.

Referenced by show_extension_boards_information().

#define EDBG_EXTEN_BOARDS_TOKEN   0xE1;

Request token of EDBG TWI information interface.

Referenced by show_extension_boards_information().

#define EDBG_KIT_DATA_TOKEN   0xD2;

#define STRING_EOL   "\r"

#define STRING_HEADER

Value:

"-- EDBG TWI Information Interface Example --\r\n" \
        "-- "BOARD_NAME" --\r\n" \
        "-- Compiled: "__DATE__" "__TIME__" --"STRING_EOL

Referenced by main().

#define TIMEOUT   1000

Referenced by show_extension_boards_information().

#define TWI_CLK   400000

TWI Bus Clock 400kHz.

Referenced by configure_i2c_master().

static void configure_console ( void  )

static

Configure the Console UART.

References uart_rs232_options::baudrate, stdio_serial_init(), and sysclk_enable_peripheral_clock().

Referenced by main().

static void configure_i2c_master ( void  )

static

Function for configuring I2C master module.

This function will configure the I2C master module with the SERCOM module to be used and pinmux settings

References twi_options::master_clk, pmc_enable_periph_clk(), twi_options::speed, sysclk_get_cpu_hz(), TWI_CLK, twi_master_init(), and TWI_SUCCESS.

Referenced by main().

static void decode_board_info ( uint8_t *  buffer )

static

Function for show the extension boards information.

show extension boards information

References extension_info, maximum_voltage, minimum_current, and minimum_voltage.

Referenced by show_extension_boards_information().

int main

(

void

)

Main application.

References board_init(), configure_console(), configure_i2c_master(), show_extension_boards_information(), STRING_HEADER, and sysclk_init().

static void show_extension_boards_information ( void  )

static

Function for show the extension boards information.

Get the extension boards info

Check and show info

show extension board info

References twi_packet::addr, twi_packet::addr_length, twi_packet::buffer, twi_packet::chip, decode_board_info(), EDBG_ADDRESS, EDBG_EXTEN_BOARDS_TOKEN, extension_map, twi_packet::length, read_buffer, TIMEOUT, twi_master_read(), and TWI_SUCCESS.

Referenced by main().

uint8_t extension_info[64]

Referenced by decode_board_info().

uint8_t extension_map[2]

Extension board info structure.

Referenced by show_extension_boards_information().

uint16_t maximum_voltage

Referenced by decode_board_info().

uint16_t minimum_current

Referenced by decode_board_info().

uint16_t minimum_voltage

Referenced by decode_board_info().

twi_options_t opt

I2C related structure.

Referenced by usart_spi_setup_device().

twi_packet_t packet_rx

uint8_t read_buffer[1024]

Read buffer.