#include<reg51.h>
#include"Config.h"
#include"IOCfg.c"
#include"TimeDLY.h"
#include"Key.h"


//函數(shù)：SPI_WriteOneByte()
//功能：向SPI總線寫(xiě)數(shù)據(jù)
//說(shuō)明：寫(xiě)入的數(shù)據(jù)長(zhǎng)度為1字節(jié)
void SPI_WriteOneByte(INT8U Wdata)
{
	INT8U i;
	for(i=0;i<8;i++)
	{
		ZLG7289DIO = (bit)(Wdata&0x80);
		ZLG7289CLK = 1;
		Wdata <<= 1;
		nNop(1);
		ZLG7289CLK = 0;
		nNop(1);		
		}
	}


//函數(shù)：SPI_ReadOneByte()
//功能：從SPI總線讀數(shù)據(jù)
//說(shuō)明：返回1字節(jié)數(shù)據(jù)
INT8U SPI_ReadOneByte()
{
	INT8U i,temp;
	ZLG7289DIO = 1;			//將I/O切換到輸入狀態(tài)
	for(i=0;i<8;i++)
	{
		ZLG7289CLK = 1;
		nNop(5);
		temp <<= 1;
		if(ZLG7289DIO) temp++;
		ZLG7289CLK	=	0;
		nNop(5);
		}
	return temp;
	}

//函數(shù)：ZLG7289_Instruc()
//功能：執(zhí)行ZLG7289純指令
//說(shuō)明：指令長(zhǎng)度為1字節(jié)
void ZLG7289_Instruc(INT8U Instruc)
{
	INT8U i;
	i = IE;
	IE &= 0xfa;							// Disable external interrupt;
	ZLG7289CS = 0;
	nNop(5);
	SPI_WriteOneByte(Instruc);
	ZLG7289CS = 1;
	nNop(5);
	IE = i;								
	}


//函數(shù)：ZLG7289_Instruc_Data
//功能：執(zhí)行ZLG7289帶數(shù)據(jù)指令
//說(shuō)明：指令長(zhǎng)度以及數(shù)據(jù)長(zhǎng)度均為1字節(jié)
void ZLG7289_Instruc_Data(INT8U Instruc,INT8U Data)
{
	INT8U i;
	i = IE;
	IE &= 0xfa;
	ZLG7289CS = 0;
	nNop(5);
	SPI_WriteOneByte(Instruc);
	nNop(5);
	SPI_WriteOneByte(Data);
	ZLG7289CS = 1;
	nNop(5);
	IE = i;
	}



//函數(shù)：ZLG7289_ReadKey()
//功能：執(zhí)行ZLG7289讀鍵盤(pán)指令
//說(shuō)明：返回1字節(jié)的按鍵號(hào)
//			按鍵號(hào)的范圍為：0 ~ 63（即0x0 ~ 0x3f）
//			若沒(méi)有按按鍵被按下了，返回255（即0xff）
INT8U ZLG7289_ReadKey()
{
	INT8U Key;
	ZLG7289CS = 0;
	nNop(10);
	SPI_WriteOneByte(0x15);
	nNop(5);
	Key = SPI_ReadOneByte();
	nNop(1);
	ZLG7289CS = 1;
	nNop(5);
	return Key;
	}