spi.h

来自「ADI系列DSP blackfin BF533 触摸屏 基于亿旗的开发板」· C头文件 代码 · 共 24 行

//*************************************************************//
//** file: spi.h
//** target: ADSP-BF533
//** creat time: 2008-8-19
#ifndef _SPI_H
#define _SPI_H

#define SPI_SEL_LOW		*pSPI_FLG &= ~0x2000 // SPISEL5 clr
#define SPI_SEL_HIGH	*pSPI_FLG |=  0x2000 // SPISEL5 set

//SPI interface funtion
void SPI_Init(void);

//SPI send a word function
void SPI_send_data(unsigned short data);

//SPI receive a word function
unsigned short SPI_receive_data(void);

//SPI RDBR clear
void SPI_RDBR_Clr(void);

#endif