qs_i2c_slave_callback.c File Reference

SAM SERCOM I2C Slave Quick Start Guide with Callbacks.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>

Macros
#define	DATA_LENGTH   10
	[packet] More...
#define	SLAVE_ADDRESS   0x12
	[packet_data] More...

Functions
void	configure_i2c_slave (void)
	[write_request] More...
void	configure_i2c_slave_callbacks (void)
	[initialize_i2c] More...
void	i2c_read_request_callback (struct i2c_slave_module *const module)
	[module] More...
void	i2c_write_request_callback (struct i2c_slave_module *const module)
	[read_request] More...
int	main (void)
	[setup_i2c_callback] More...

Variables
struct i2c_slave_module	i2c_slave_instance
	[address] More...
static struct i2c_slave_packet	packet
	[packet] More...
static uint8_t	read_buffer [DATA_LENGTH]
static uint8_t	write_buffer [DATA_LENGTH]

#define DATA_LENGTH   10

[packet]

[packet_data]

Referenced by i2c_read_request_callback(), and i2c_write_request_callback().

#define SLAVE_ADDRESS   0x12

[packet_data]

[address]

Referenced by check_boot_mode(), and configure_i2c_slave().

void configure_i2c_slave

(

void

)

[write_request]

[module]

[initialize_i2c]

[init_conf]

[init_conf]

[conf_changes]

[conf_changes]

[init_module]

[init_module]

[enable_module]

[enable_module]

References i2c_slave_config::address, i2c_slave_config::address_mode, I2C_SLAVE_ADDRESS_MODE_MASK, i2c_slave_enable(), i2c_slave_get_config_defaults(), i2c_slave_init(), i2c_slave_instance, i2c_slave_config::pinmux_pad0, i2c_slave_config::pinmux_pad1, and SLAVE_ADDRESS.

Referenced by main().

void configure_i2c_slave_callbacks

(

void

)

[initialize_i2c]

[setup_i2c_callback]

[reg_en_i2c_callback]

[reg_en_i2c_callback]

References i2c_read_request_callback(), I2C_SLAVE_CALLBACK_READ_REQUEST, I2C_SLAVE_CALLBACK_WRITE_REQUEST, i2c_slave_enable_callback(), i2c_slave_instance, i2c_slave_register_callback(), and i2c_write_request_callback().

Referenced by main(), and run_i2c_init_test().

void i2c_read_request_callback

(

struct i2c_slave_module *const

module

)

[module]

[read_request]

[packet_write]

[packet_write]

[write_packet]

[write_packet]

References i2c_slave_packet::data, DATA_LENGTH, i2c_slave_packet::data_length, i2c_slave_write_packet_job(), packet, and write_buffer.

Referenced by configure_i2c_slave_callbacks().

void i2c_write_request_callback

(

struct i2c_slave_module *const

module

)

[read_request]

[write_request]

[packet_read]

[packet_read]

[read_packet]

[read_packet]

References i2c_slave_packet::data, DATA_LENGTH, i2c_slave_packet::data_length, i2c_slave_read_packet_job(), packet, read_buffer, and STATUS_OK.

Referenced by configure_i2c_slave_callbacks().

int main

(

void

)

[setup_i2c_callback]

[run_initialize_i2c]

[config]

[config] [config_callback]

[config_callback] [run_initialize_i2c]

[while]

[while]

References configure_i2c_slave(), configure_i2c_slave_callbacks(), and system_init().

struct i2c_slave_module i2c_slave_instance

[address]

[module]

Referenced by configure_i2c_slave(), configure_i2c_slave_callbacks(), main(), run_i2c_init_test(), and setup_dma_descriptor().

struct i2c_slave_packet packet

static

[packet]

Referenced by i2c_read_request_callback(), and i2c_write_request_callback().

uint8_t read_buffer[DATA_LENGTH]

static

Referenced by get_length(), i2c_write_request_callback(), main(), and setup_dma_descriptor().

uint8_t write_buffer[DATA_LENGTH]

static

Initial value:

= {
        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
}

Referenced by i2c_read_request_callback(), and main().