spi_if.h File Reference

this file contains the SPI fuctions More...

#include "TI_USCI_SPI_Regs.h"

Go to the source code of this file.

Defines
#define	SPI_BAUDRATE   1000000
#define	SPI_BAUDRATE_REG   (unsigned short)(MCLK_FREQ/SPI_BAUDRATE)
#define	NUMBER_OF_SPI_REGS   BQ_SPI_REG_MAX
#define	READ_ACCESS   (1<<0)
#define	WRITE_ACCESS   (1<<1)
Typedefs
typedef enum SPI_REGS	spi_regs_t
	System typdefs .
Enumerations
enum	SPI_REGS { SPI_DEV_ID, SPI_REV, SPI_STATUS }
	System typdefs .
Functions
short	spi_read_reg (unsigned char dev_addr, unsigned char reg_addr, short elem_num, unsigned char discard_crc, unsigned char *pData)
	External functions declaration .
short	spi_write_reg (unsigned char dev_addr, unsigned char reg_addr, unsigned char data)
	Function Name: spi_write_reg .
void	init_spi (void)
	Global functions .

---

Detailed Description

this file contains the SPI fuctions

Author:

Texas Instruments, Inc

Date:

November 2010

Version:

1.0 Initial version

Note:

Built with IAR for MSP430 Version: 5.10

Definition in file spi_if.h.

---

Function Documentation

void init_spi

(

void

)

Global functions .

Function Name: init_spi . Description : Initializes the SPI module and the SPI pins .

Parameters:

parameters

: none

Returns:

Value : none

Definition at line 134 of file spi_if.c.

short spi_read_reg	(	unsigned char	dev_addr,
		unsigned char	reg_addr,
		short	elem_num,
		unsigned char	discard_crc,
		unsigned char *	pData
	)

External functions declaration .

External functions declaration .

Description : Read elem_num bytes from SPI reg of the attached device, read data is returned in pData, returns number of received bytes (including CRC as last pData byte if required) .

Parameters:

parameters

: device address, register address, num of bytes, CRC enable/disable, receiver buffer .

Returns:

Value : number of bytes received

Definition at line 224 of file spi_if.c.

short spi_write_reg	(	unsigned char	dev_addr,
		unsigned char	reg_addr,
		unsigned char	data
	)

Function Name: spi_write_reg .

Description : Writes just 1 byte into the specified bq pack register.

Parameters:

parameters

: device address, register address, data

Returns:

Value : return the number of bytes sent

Definition at line 163 of file spi_if.c.