qs_spi_master_basic.c File Reference

SAM SPI Quick Start.

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

#include <asf.h>

Macros
#define	BUF_LENGTH   20
	[setup] [buf_length] More...
#define	SLAVE_SELECT_PIN   CONF_MASTER_SS_PIN
	[buf_length] [slave_select_pin] More...

Functions
void	configure_spi_master (void)
	[slave_dev_inst] [setup] More...
int	main (void)
	[configure_spi] More...

Variables
static uint8_t	buffer [BUF_LENGTH]
	[slave_select_pin] [buffer] More...
struct spi_slave_inst	slave
	[dev_inst] [slave_dev_inst] More...
struct spi_module	spi_master_instance
	[buffer] More...

#define BUF_LENGTH   20

[setup] [buf_length]

Referenced by main().

#define SLAVE_SELECT_PIN   CONF_MASTER_SS_PIN

[buf_length] [slave_select_pin]

void configure_spi_master

(

void

)

[slave_dev_inst] [setup]

[configure_spi]

[config]

[config] [slave_config]

[slave_config]

[slave_conf_defaults]

[slave_conf_defaults] [ss_pin]

[ss_pin] [slave_init]

[slave_init]

[conf_defaults]

[conf_defaults] [mux_setting]

[mux_setting]

[init]

[init]

[enable]

[enable]

int main

(

void

)

[configure_spi]

[main_setup] [system_init]

[system_init] [run_config]

[run_config] [main_setup]

[main_use_case] [inf_loop]

[select_slave]

[select_slave] [write]

[write] [deselect_slave]

[deselect_slave] [light_up]

[light_up]

[inf_loop] [main_use_case]

References BUF_LENGTH, buffer, configure_spi_master(), port_pin_get_input_level(), port_pin_set_output_level(), slave, spi_master_instance, spi_select_slave(), spi_write_buffer_wait(), and system_init().

uint8_t buffer[BUF_LENGTH]

static

Initial value:

= {
        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
        0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13
}

[slave_select_pin] [buffer]

struct spi_slave_inst slave

[dev_inst] [slave_dev_inst]

struct spi_module spi_master_instance

[buffer]

[dev_inst]