fm25cl64.c

来自「fm25c64和tms320lf2407通信程序」· C语言 代码 · 共 23 行

#include "fm25cl64.h"

#include "global.c"
//
//
unsigned int SPI_Write_Byte( unsigned int data )
{
	unsigned char	flag ;
	unsigned int	ret ;
	//
	SPITXBUF = (data<<8)&0xFF00 ;
	while(1)
	{
		flag = SPISTS & 0x40 ;
		if( flag == 0x40 )
			break ;	
	}
	//
	ret = SPIRXBUF;	/*虚读寄存器以清除中断标志*/  
	//
	return(ret&0x00FF) ;
}