zlg7289.c

本程序的详细功能描述了嵌入式系统中键盘及LED实验

#include "44b.h"
#include"uhal.h"
#include "zlg7289.h"

int Zlg7289SIOBand;
int Zlg7289SIOCtrl;

void Zlg7289_Reset()
{
	ZLG7289_ENABLE();
	WriteSDIO(ZLG7289_CMD_RST);
	ZLG7289_DISABLE();
	Delay(20);
}

unsigned int Zlg7289_ReadKey()
{
	unsigned int key;

	ZLG7289_ENABLE();

	WriteSDIO(ZLG7289_CMD_RDKEY);
	key=ReadSDIO();
	
	ZLG7289_DISABLE();

	return key;
}