qs_i2c_master_basic_use.c File Reference

SAM SERCOM I2C Master Quick Start Guide.

Copyright (c) 2012-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>

Macros
#define	DATA_LENGTH   10
	[packet_data] More...
#define	SLAVE_ADDRESS   0x12
	[packet_data] More...
#define	TIMEOUT   1000
	[address] More...

Functions
void	configure_i2c_master (void)
	[dev_inst] More...
int	main (void)
	[initialize_i2c] More...

Variables
struct i2c_master_module	i2c_master_instance
	[timeout] More...
static uint8_t	read_buffer [DATA_LENGTH]
static uint8_t	write_buffer [DATA_LENGTH]

#define DATA_LENGTH   10

[packet_data]

Referenced by main().

#define SLAVE_ADDRESS   0x12

[packet_data]

[address]

Referenced by main().

#define TIMEOUT   1000

[address]

[timeout]

Referenced by main().

void configure_i2c_master

(

void

)

[dev_inst]

[initialize_i2c]

[init_conf]

[init_conf]

[conf_change]

[conf_change]

[init_module]

[init_module]

[enable_module]

[enable_module]

References i2c_master_config::buffer_timeout, i2c_master_enable(), i2c_master_get_config_defaults(), i2c_master_init(), i2c_master_instance, i2c_master_config::pinmux_pad0, and i2c_master_config::pinmux_pad1.

Referenced by main().

int main

(

void

)

[initialize_i2c]

[init]

[config]

[config]

[timeout_counter]

[timeout_counter]

[packet]

[packet] [init]

[main]

[write_packet]

[write_packet]

[read_packet]

[read_packet]

[main]

References i2c_master_packet::address, configure_i2c_master(), i2c_master_packet::data, DATA_LENGTH, i2c_master_instance, i2c_master_read_packet_wait(), i2c_master_write_packet_wait(), read_buffer, SLAVE_ADDRESS, STATUS_OK, system_init(), TIMEOUT, and write_buffer.

struct i2c_master_module i2c_master_instance

[timeout]

[dev_inst]

uint8_t read_buffer[DATA_LENGTH]

static

uint8_t write_buffer[DATA_LENGTH]

static

Initial value:

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