spi.h

iic_at24c03_lc72131_redio用于FM

#ifndef _SPI_H_
#define _SPI_H_
/*
 * SPI D-òé
 * ′|àí?÷ààDí￡oC51￡?AVR
 * °?±?￡o1
 * è??ú￡o2006-12-3
 * ×÷??￡o??μ?í?<[e-mail]>

 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.  Or, point your browser to
 * http://www.gnu.org/copyleft/gpl.html
 */
#include "configure.h"

/*===========SPI===========*/
//#define SPI_U			1	//ê1ó?SPI?ú
//#define SPI_MASTER_U	1	//ê1ó?SPI?ú?÷?ú?￡ê?
//#define SPI_MasterMultibyte_U	1	//ê1ó?SPI?ú?÷?ú?à×??ú′?ê??￡ê?
//#define SPI_SR_U		1	//ê1ó?SPI?ú′ó?ú?￡ê?

#ifdef SPI_U
//SPI?ù?èμè??
#define SPI_FOSC_4		(0<<SPR1)|(0<<SPR0)//?eμ′?μ?ê3y4
#define SPI_FOSC_16		(0<<SPR1)|(1<<SPR0)//?eμ′?μ?ê3y16
#define SPI_FOSC_64		(1<<SPR1)|(0<<SPR0)//?eμ′?μ?ê3y64
#define SPI_FOSC_128	(1<<SPR1)|(1<<SPR0)//?eμ′?μ?ê3y128

//SPI?￡ê?
#define SPI_Mode_0 (0<<CPOL)|(0<<CPHA)//CPOL = 0, CPHA = 0 ?eê???2é?ù ( é?éy??) ?áê???éè?? ( ???μ??) 0
#define SPI_Mode_1 (0<<CPOL)|(1<<CPHA)//CPOL = 0, CPHA = 1 ?eê???éè?? ( é?éy??) ?áê???2é?ù ( ???μ??) 1
#define SPI_Mode_2 (1<<CPOL)|(0<<CPHA)//CPOL = 1, CPHA = 0 ?eê???2é?ù ( ???μ??) ?áê???éè?? ( é?éy??) 2
#define SPI_Mode_3 (1<<CPOL)|(1<<CPHA)//CPOL = 1, CPHA = 1 ?eê???éè?? ( ???μ??) ?áê???2é?ù ( é?éy??) 3


//?¨ò?SPI?ù?è
//#define SPISpeed	SPI_FOSC_4
//#define SPIDoubleSpeed 1//?¨ò????ˉSPI±??ù1|?ü
//?¨ò?SPI?￡ê?
#define SPI_Mode SPI_Mode_0

//pin count
#define	MISO_SPI	6
#define	MOSI_SPI	5
#define	SS_SPI		4
#define	SCK_SPI		7
//port
#define DDR_SPI		DDRB
#define POPT_SPI	PORTB
#define PIN_SPI 	PINB

//pin
#define PIN_SPI_SS 		PIN_SPI&(1<<SS_SPI)
#define PIN_SPI_SCK 	PIN_SPI&(1<<SCK_SPI)
#define PIN_SPI_MISO 	PIN_SPI&(1<<MISO_SPI)
#define PIN_SPI_MOSI 	PIN_SPI&(1<<MOSI_SPI)

#define SPI_LSB_FIRST	SPCR |= (1<<DORD)//LSBê×·￠
#define SPI_MSB_FIRST	SPCR &=~(1<<DORD)//MSBê×·￠


#ifdef SPI_SR_U
extern void SPI_SRInit(void);//LSBê×·￠
#endif //SPI_SR_U

#ifdef SPI_MasterMultibyte_U///////////////////////////////////////////

extern volatile uint8 SPI_OutboxDataCount;	//???ˉSPI′?ê??°Dèè·è????a0￡?·??ò???aê§?aíê3é′?ê?μ?êy?Y
extern void SPI_MasterMultibyteInit(uint8 SPISpeed);//LSBê×·￠SPISpeed???¨?ù?è
extern void SPI_MasterMultibyteTransmit(uint8* cData,uint8 dataCount);//ò?í?2??￡ê?′?ê?ò???×??úreturn￡o?áè?μ?×??ú

#endif//SPI_MasterMultibyte_U///////////////////////////////////////////
#ifdef SPI_MASTER_U
extern void SPI_MasterInit(uint8 SPISpeed);//LSBê×·￠SPISpeed???¨?ù?è
extern uint8 SPI_MasterTransmit(uint8 cData);//ò?í?2??￡ê?′?ê?ò???×??úreturn￡o?áè?μ?×??ú
#endif //SPI_MASTER_U
extern void SPIRelease();//êí·? SPI?ú
#endif //SPI_U
/*===========VSPI===========*/
#define VSPI			1	//ê1ó?Dé?aSPI?ú
#ifdef VSPI
#define VSPI_MSB_U		1	//ê1ó?MSB
//#define VSPI_LSB_U		1	//ê1ó?LSB
//#define VSPI_SCK_NORMAL_L	1	//?¨ò?ê1SCKD?o???3￡ì??aμí
/*è?1?òaí?2?ê1ó?Dé?aSPI?úDè?¨ò??ü￡??a??μ???ò???′?ê?1y3ì?áê??°????′?ê????ó±?D?μè′y(êμ????3ìí?2?)*/
//#define VSPI_SYNCHRO_U	1

//SPI?￡ê?,????ò?
#define VSPI_MODE_0 //?eê???2é?ù ( é?éy??) ?áê???éè?? ( ???μ??) SCK3￡ì?0
//#define VSPI_MODE_1 //?eê???éè?? ( é?éy??) ?áê???2é?ù ( ???μ??) SCK3￡ì?0
//#define VSPI_MODE_2 //?eê???2é?ù ( ???μ??) ?áê???éè?? ( é?éy??) SCK3￡ì?1
//#define VSPI_MODE_3 //?eê???éè?? ( ???μ??) ?áê???2é?ù ( é?éy??) SCK3￡ì?1

#if defined(VSPI_MODE_0)||defined(VSPI_MODE_1)
#define  VSPI_START_RISE//?eê???é?éy??
#endif
#if defined(VSPI_MODE_1)||defined(VSPI_MODE_3)
#define  VSPI_START_SET//?eê???éè??
#endif

#ifndef SDA_VSPI_PIN
#define SDA_VSPI_PIN P1^0
#endif
#ifndef SCK_VSPI_PIN
#define SCK_VSPI_PIN P1^1
#endif

//?¨ò?êy?Y?ó?úòy??
sbit SDA_VSPI = SDA_VSPI_PIN;
sbit SCK_VSPI = SCK_VSPI_PIN;

#ifdef VSPI_SYNCHRO_U
extern volatile bool VSPI_Transmiting;//′?ê?1y3ì?D?a1￡?2?òaD′??
extern void InVSPI(void);			//?aê?ê1ó?ê±μ÷ó?
static void __inline__ OutVSPI(void)//?áê?ê1ó?ê±μ÷ó?
{
	VSPI_Transmiting = false;
}
#endif//VSPI_SYNCHRO_U
extern void VSPI_MasterInit(void);

#ifdef VSPI_LSB_U
extern uint8 VSPI_MasterTransmitLSB(uint8 cData);//′??í
#endif//VSPI_LSB_U
#ifdef VSPI_MSB_U
extern uint8 VSPI_MasterTransmitMSB(uint8 cData);
#endif//VSPI_MSB_U
#endif	//VSPI
#endif	//_SPI_H_