spi.h

ATmega128和ads7864实现ATP闭环控制

#ifndef _SPI_H
#define _SPI_H

//****Master SPI 常数配置***************************************/
#define SPIENABLE       			1
#define SPIMASTERENABLE             0x02          //SSPM3:SSPM0 =0x02
#define TRISC5_SPI_SOUT 			0
#define TRISC3_SPI_SCK_Master 		0
#define CKP_High                    1
#define SMP_Master                  0              //0中间采样，1发送结束采样
#define CKE_FALL                    0
#define BUF_COLLISION               1
#define BUF_COLLISION_CLEAN         0

//*****SPI接收中断常数配置
#define SSPIE_Disable               0
#define SSPIP_High					1              //高级中断
#define SPI_COMPLETE                1
#define SSPIF_CLEAN                 0              //清除中断标志


// ****************************** //
// *** SPI Hardware Interface *** //
// ****************************** //

#define SPI_CS 	BIT0

#define SPI_OUT		PORTB
#define SPI_DIR		DDRB
#define SPI_IN		PINB







void spi_init(void);
void SPISend(unsigned char ucByte);
unsigned char SPIReadData(void);
void SPI_CSTiming(void);


#endif