spi_master_example_sam.c File Reference

Example of usage of the SPI Master Mode Basic Services.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include "asf.h"
#include "conf_spi_master_example.h"

Macros
#define	DATA_BUFFER_SIZE   0x04
AT25DF321 Commands
#define	AT25DF_CMDC_RD_MID_REG   0x9F

Functions
int	main (void)
	Main function. More...
static bool	spi_at25df_mem_check (void)
	Read AT25DF321 manufacturer and device ID, check the density. More...

Variables
uint8_t	data [DATA_BUFFER_SIZE] = { AT25DF_CMDC_RD_MID_REG }
	First Status Command Register - Second Dummy Data. More...
struct spi_device	SPI_DEVICE_EXAMPLE

#define AT25DF_CMDC_RD_MID_REG   0x9F

Status Register Read (Serial/8-bit Mode).

#define DATA_BUFFER_SIZE   0x04

Referenced by spi_at25df_mem_check().

int main

(

void

)

Main function.

References board_init(), IOPORT_PIN_LEVEL_HIGH, IOPORT_PIN_LEVEL_LOW, ioport_set_pin_level(), spi_at25df_mem_check(), spi_enable(), spi_master_init(), spi_master_setup_device(), SPI_MODE_0, and sysclk_init().

static bool spi_at25df_mem_check ( void  )

static

Read AT25DF321 manufacturer and device ID, check the density.

References data, DATA_BUFFER_SIZE, spi_deselect_device(), spi_read_packet(), spi_select_device(), and spi_write_packet().

Referenced by main().

uint8_t data[DATA_BUFFER_SIZE] = { AT25DF_CMDC_RD_MID_REG }

First Status Command Register - Second Dummy Data.

struct spi_device SPI_DEVICE_EXAMPLE

Initial value:

= {
    
    .id = SPI_DEVICE_EXAMPLE_ID
}