spi.c

液晶显示程序

#include "STC89C51RC.H"
#include "RT12864M.H"
#include "SPI.H"

unsigned char ReadOneChar()
{
	unsigned char onedata=0;
	unsigned char i;

	for(i=0;i<8;i++)
	{
		onedata = onedata << 1;
		while(SCLK == 1);
		while(SCLK == 0);
		if(MISO == 1)
		{ 
			onedata = (onedata | 0x01);
		}
	}
	return(onedata);		
}

void Service_Int0() interrupt 0 
{
	unsigned char i;
	EA = 0;

	while(SCLK == 0);

	for(i=0;i<16;i++)
	{
		FChinese[i] = ReadOneChar();
	}

	for(i=0;i<16;i++)
	{
		SBUF = FChinese[i];
		while(TI == 0);
		TI = 0;
	}

	ShowChinese(0x90,FChinese,8);
	EA = 1;
}