#include <reg52.h>
#include <ABSACC.h>
#include <intrins.h>
#include <stdio.h>
#define uint unsigned int
#define uchar unsigned char
#define BYTE_BIT0	0x01
#define BYTE_BIT1	0x02
#define BYTE_BIT2	0x04
#define BYTE_BIT3	0x08
#define BYTE_BIT4	0x10
#define BYTE_BIT5	0x20
#define BYTE_BIT6	0x40
#define BYTE_BIT7	0x80
////////////SPI指令
#define WC		0x00
#define RC		0x10
#define WTP		0x20
#define RTP		0x21
#define WTA		0x22
#define RTA		0x23
#define RRP		0x24
bdata unsigned  char DATA_BUF;
#define DATA7	((DATA_BUF&BYTE_BIT7) != 0)
#define DATA0   ((DATA_BUF&BYTE_BIT0) != 0)
sbit	flag	=DATA_BUF^7;
sbit	flag1	=DATA_BUF^0;
#define TxRxBuf_Len 32
unsigned char TxRxBuf[TxRxBuf_Len]=
{

0x01,0x02,0x03,0x4,0x05,0x06,0x07,0x08,
0x09,0x10,0x11,0x12,0x13,0x14,0x15,0x16,
0x17,0x18,0x19,0x20,0x21,0x22,0x23,0x24,
0x25,0x26,0x27,0x28,0x29,0x30,0x31,0x32,
};
//配置口定義//
//----------------------------------------------NRF905控制IO------------------------------------------------------
sbit	TXEN=P1^0;
sbit	TRX_CE=P3^2;
sbit	PWR=P1^1;
//----------------------------------------------NRF905 SPI接口---------------------------------------------------
sbit	MISO=P1^6;
sbit	MOSI=P1^5;
sbit	SCK=P1^7;
sbit	CSN=P1^3;
//----------------------------------------nrf905狀態標志---------------------------------------------------------
sbit	AM=P1^4;
sbit	DR=P3^3;
sbit	CD=P1^2;
//---------------------------------------------------------------------------------------------------------------
sbit	led3=P2^0;
sbit	led2=P2^1;
sbit	led1=P2^2;
sbit	led0=P2^3;
//--------------------------------------------------------------------------------------------------------------
sbit	KEY0=P3^6;
sbit	KEY1=P3^7;
//--------------------------------------------------------------------------------
sbit	BELL=P3^4;
///////////////////////////////////////////////////////
//sbit      DQ=P3^5	  ;
//RF寄存器配置//
unsigned char idata RFConf[11]=
{
  0x00,                             //配置命令//
  0x4c,                             //CH_NO,配置頻段在423MHZ
  0x0C,                             //輸出功率為10db,不重發，節電為正常模式
  0x44,                             //地址寬度設置，為4字節
  0x20,0x20,                        //接收發送有效數據長度為32字節
  0xCC,0xCC,0xCC,0xCC,              //接收地址
  0x58,                              //CRC充許，8位CRC校驗，外部時鐘信號不使能，16M晶振
};
bit lcdbit;
code TxAddress[4]={0xcc,0xcc,0xcc,0xcc};
///////////延時/////////////////
static void Delay(uchar n)
{
	uint i;
	while(n--)
	for(i=0;i<80;i++);
}

///////////////
unsigned char SpiRead(void)
{
	unsigned char i;
	for (i=0;i<8;i++)
	{
		DATA_BUF=DATA_BUF<<1;
		SCK=1;
		if (MISO)	//讀取最高位，保存至最末尾，通過左移位完成整個字節
		{
			DATA_BUF|=BYTE_BIT0;
		}
		else
		{
			DATA_BUF&=~BYTE_BIT0;
		}
		SCK=0;
	 }
	 return DATA_BUF;
}

void SpiWrite(unsigned char send)
{
	unsigned char i;
	DATA_BUF=send;
	for (i=0;i<8;i++)
	{
		if (DATA7)	//總是發送最高位
		{
			MOSI=1;
		}
		else
		{
			MOSI=0;
		}
		SCK=1;
		DATA_BUF=DATA_BUF<<1;
		SCK=0;
	}
}
////////////////初始化nRF905///////////////////
void nRF905Init(void)
{
    CSN=1;						// Spi 	disable
	SCK=0;						// Spi clock line init low
	DR=0;						// Init DR for input
	AM=0;						// Init AM for input
	CD=0;						// Init CD for input
	PWR=1;					// nRF905 power on
	TRX_CE=0;					// Set nRF905 in standby mode
	TXEN=0;					// set radio in Rx mode
}
////////初始化寄存器
void Config905(void)
{
	uchar i;
	CSN=0;						// Spi enable for write a spi command
	//SpiWrite(WC);				// Write config command寫放配置命令
	for (i=0;i<11;i++)	// Write configration words  寫放配置字
	{
	   SpiWrite(RFConf[i]);
	}
	CSN=1;					// Disable Spi
}
/////////////初始化
void Inituart(void)
{
	TMOD = 0x20;				//timer1 working mode 1
	TL1  = 0xfd;					//f7=9600 for 16mhz Fosc,and ...
	TH1  = 0xfd;					//...fd=19200 for 11.0592mhz Fosc
	SCON = 0xd8;				//uart mode 3,ren==1
	PCON = 0x80;				//smod=1
	TR1  = 1;					//start timer1
}
/////////////發送數據
void TxPacket(void)
{
	uchar i;
	//Config905();
	CSN=0;
	SpiWrite(WTP);				// Write payload command
	for (i=0;i<32;i++)
	{
		SpiWrite(TxRxBuf[i]);		// Write 32 bytes Tx data
	}// Spi enable for write a spi command
	CSN=1;
	Delay(1);						// Spi disable
	CSN=0;						// Spi enable for write a spi command
	SpiWrite(WTA);				// Write address command
	for (i=0;i<4;i++)			// Write 4 bytes address
	{
		SpiWrite(TxAddress[i]);
	}
	CSN=1;						// Spi disable
	TRX_CE=1;					// Set TRX_CE high,start Tx data transmission
	Delay(1);					// while (DR!=1);
	TRX_CE=0;					// Set TRX_CE low
}
////////////////////////////////////////////////////
void SetTxMode(void)
{
	TRX_CE=0;
	TXEN=1;
	Delay(1); 					// delay for mode change(>=650us)
}
unsigned char CheckCD(void)		//Pin->檢查是否已存在 同頻率載波
{
	if (CD==1)
	{
		return 1;
	}
	else
	{
		return 0;
	}
}
void TX(void)
{
               SetTxMode();// Set nRF905 in Tx mode
			   TxPacket();// Send data by nRF905


 CheckCD();	// 返回CD的當前電平

	// SetRF_PA_PWR(unsigned char i);	//設置發射功率
}
void main(void)
{
        Inituart();
        nRF905Init();
     	Config905();
        while(1)
		{
               TX();
		}
}