aversive_10-03-12/modules/comm/spi/spi.h File Reference

#include <stdint.h>

Go to the source code of this file.

Defines
#define	SPI_MSB_FIRST   0
#define	SPI_LSB_FIRST   1
Enumerations
enum	spi_mode_t { SPI_MODE_UNINIT, SPI_MODE_MASTER }
enum	spi_format_t { SPI_FORMAT_0 = 0x00, SPI_FORMAT_1 = _BV(CPHA), SPI_FORMAT_2 = _BV(CPOL), SPI_FORMAT_3 = _BV(CPHA) | _BV(CPOL) }
enum	spi_clk_rate_t {   SPI_CLK_RATE_2 = 0x10, SPI_CLK_RATE_4 = 0x00, SPI_CLK_RATE_8 = 0x11, SPI_CLK_RATE_16 = 0x01,   SPI_CLK_RATE_32 = 0x12, SPI_CLK_RATE_64 = 0x02, SPI_CLK_RATE_128 = 0x03 }
Functions
void	spi_set_data_order (uint8_t order)
void	spi_init (spi_mode_t mode, spi_format_t format, spi_clk_rate_t clk_rate)
spi_mode_t	spi_get_mode (void)
int8_t	spi_register_ss_line (volatile uint8_t *port, uint8_t bitnum)
uint8_t	spi_send_and_receive_byte (uint8_t byte)
void	spi_send_byte (uint8_t byte)
uint8_t	spi_receive_byte (void)
uint8_t	spi_slave_select (uint8_t slave)
void	spi_slave_deselect (uint8_t slave)
void	spi_display_ss_lines (void)

---

Define Documentation

#define SPI_LSB_FIRST   1

Definition at line 105 of file spi.h.

Referenced by spi_get_data_order(), and spi_set_data_order().

#define SPI_MSB_FIRST   0

Definition at line 104 of file spi.h.

Referenced by spi_get_data_order().

---

Enumeration Type Documentation

enum spi_clk_rate_t

Enumerator:

SPI_CLK_RATE_2
SPI_CLK_RATE_4
SPI_CLK_RATE_8
SPI_CLK_RATE_16
SPI_CLK_RATE_32
SPI_CLK_RATE_64
SPI_CLK_RATE_128

Definition at line 88 of file spi.h.

enum spi_format_t

Enumerator:

SPI_FORMAT_0
SPI_FORMAT_1
SPI_FORMAT_2
SPI_FORMAT_3

Definition at line 76 of file spi.h.

enum spi_mode_t

Enumerator:

SPI_MODE_UNINIT
SPI_MODE_MASTER

Definition at line 62 of file spi.h.

---

Function Documentation

void spi_display_ss_lines

(

void

)

Definition at line 213 of file spi.c.

References DEBUG, E_SPI, and i.

Referenced by main().

spi_mode_t spi_get_mode

(

void

)

[inline]

Definition at line 147 of file spi.c.

Referenced by cc2420_init().

void spi_init	(	spi_mode_t	mode,
		spi_format_t	format,
		spi_clk_rate_t	clk_rate
	)

Definition at line 99 of file spi.c.

References DDR, E_SPI, FALSE, MISO_BIT, MISO_PORT, MOSI_BIT, MOSI_PORT, NOTICE, SCK_BIT, SCK_PORT, SPI2X_REG, SPI_MODE_MASTER, SPR0_REG, and SPR1_REG.

Referenced by cc2420_init(), and encoders_spi_init().

uint8_t spi_receive_byte

(

void

)

Definition at line 181 of file spi.c.

References spi_send_and_receive_byte().

Referenced by cc2420_read_ram(), cc2420_read_register(), cc2420_read_rxfifo(), and encoders_spi_manage().

int8_t spi_register_ss_line	(	volatile uint8_t *	port,
		uint8_t	bitnum
	)

Definition at line 55 of file spi.c.

References DEBUG, E_SPI, and NOTICE.

Referenced by cc2420_init(), and encoders_spi_init().

uint8_t spi_send_and_receive_byte

(

uint8_t

byte

)

Definition at line 156 of file spi.c.

Referenced by cc2420_get_status(), cc2420_strobe_register(), cc2420_write_rxfifo(), cc2420_write_txfifo(), spi_receive_byte(), and spi_send_byte().

void spi_send_byte

(

uint8_t

byte

)

[inline]

Definition at line 173 of file spi.c.

References spi_send_and_receive_byte().

Referenced by cc2420_init(), cc2420_read_ram(), cc2420_read_register(), cc2420_read_rxfifo(), cc2420_write_ram(), cc2420_write_register(), cc2420_write_rxfifo(), and cc2420_write_txfifo().

void spi_set_data_order

(

uint8_t

order

)

[inline]

Definition at line 77 of file spi.c.

References SPI_LSB_FIRST.

Referenced by encoders_spi_init().

void spi_slave_deselect

(

uint8_t

slave

)

Definition at line 204 of file spi.c.

References FALSE.

Referenced by encoders_spi_manage().

uint8_t spi_slave_select

(

uint8_t

slave

)

Definition at line 189 of file spi.c.

References E_SPI, EBUSY, ERROR, ESUCCESS, and TRUE.

Referenced by encoders_spi_manage().