trx4和km2和cc01哪個好
『壹』 兩片單片機的無線傳輸用NRF905 接收端 發送端 程序分別怎麼寫 好睏惑
NRF905的程序中只有nRF905Init();Config905();RX();前兩個初始化，後個傳輸函數，執行後在TRXBUF數組中會有相應的值。以下是接收的主函數，這是控制電機左右轉動的程序。（小車部分）
voidmain(void)
{
nRF905Init();
Config905();
while(1)
{
RX();
if(TxRxBuf[0]==0x11){in1=1;in2=0;in5=1;in6=0;}//從左往右
if(TxRxBuf[1]==0x11){in3=1;in4=0;in7=1;in8=0;}//從右往左
if(TxRxBuf[0]==0x22){in1=1;in2=1;in5=1;in6=1;}//從左往右
if(TxRxBuf[1]==0x22){in3=1;in4=1;in7=1;in8=1;}//從右往左
in1=1;in2=0;
}
}
遙控部分：就倆按鍵一個做轉一個右轉這是無線遙控小車的遙控部分。
voidmain(void)
{
nRF905Init();
Config905();
while(1)
{
if(KEY0==0){TxRxBuf[0]=0x11;}
if(KEY0==1){TxRxBuf[0]=0x22;}
if(KEY1==0){TxRxBuf[1]=0x11;}
if(KEY1==1){TxRxBuf[1]=0x22;}
SetTxMode();//SetnRF905inTxmode
TxPacket(TxRxBuf);//SenddatabynRF905
}
}
那麼在設置上：就按以下設置：
#include<reg52.h>
#include<ABSACC.h>
#include<intrins.h>
#include<stdio.h>
//----------------------------------------------------------------------------------------------------------------
#defineuintunsignedint
#defineucharunsignedchar
//----------------------------------------------------------------------------------------------------------------
#defineBYTE_BIT0 0x01
#defineBYTE_BIT1 0x02
#defineBYTE_BIT2 0x04
#defineBYTE_BIT3 0x08
#defineBYTE_BIT4 0x10
#defineBYTE_BIT5 0x20
#defineBYTE_BIT6 0x40
#defineBYTE_BIT7 0x80
//----------------------------------------------------------------------------------------------------------------
bdataunsignedcharDATA_BUF;
#defineDATA7 ((DATA_BUF&BYTE_BIT7)!=0)
#defineDATA0((DATA_BUF&BYTE_BIT0)!=0)
sbit flag =DATA_BUF^7;
sbit flag1 =DATA_BUF^0;
//---------------------------------------------------發送數據緩沖區-------------------------------------------------
#defineTxRxBuf_Len4
unsignedcharTxRxBuf[TxRxBuf_Len]=
{
0x29,0x30,0x31,0x32,
};
//----------------------------------------------NRF905控制IO------------------------------------------------------
sbit TXEN=P1^0;
sbit TRX_CE=P3^2;
sbit PWR=P1^1;
//----------------------------------------------NRF905SPI介面---------------------------------------------------
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;
//-----------------------------------------------------------------------------------------------------------------
ucharseg[10]={0xC0,0xCF,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};//0~~9段碼
//-------------------------------------------------------nrf905控制指令-------------------------------------------
#defineWC 0x00
#defineRC 0x10
#defineWTP 0x20
#defineRTP 0x21
#defineWTA 0x22
#defineRTA 0x23
#defineRRP 0x24
//------------------------------------------------NRF905寄存器配置------------------------------------------------
unsignedcharidataRFConf[11]=
{
0x00,//配置命令//
0x4c,//CH_NO,配置頻段在430MHZ
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位元組
0x04,0x04,//接收發送有效數據長度為32位元組
0xCC,0xCC,0xCC,0xCC,//接收地址
0x58,//CRC充許，8位CRC校驗，外部時鍾信號不使能，16M晶振
};
codeTxAddress[4]={0xcc,0xcc,0xcc,0xcc};
chartf;
//------------------------------------------------延時------------------------------------------------------------
staticvoidDelay(ucharn)
{
uinti;
while(n--)
for(i=0;i<80;i++);
}
//---------------------------------------------------SPI讀函數-----------------------------------------------------
unsignedcharSpiRead(void)
{
unsignedcharj;
for(j=0;j<8;j++)
{
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位元組
{
DATA_BUF|=BYTE_BIT0;
}
else
{
DATA_BUF&=~BYTE_BIT0;
}
SCK=0;
}
returnDATA_BUF;
}
//-------------------------------------------------SPI寫函數----------------------------------------------------------
voidSpiWrite(unsignedcharsend)
{
unsignedchari;
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---------------------------------------------
voidnRF905Init(void)
{
CSN=1; //Spi disable
SCK=0; //Spiclocklineinitlow
DR=0; //InitDRforinput
AM=0; //InitAMforinput
CD=0; //InitCDforinput
PWR=1; //nRF905poweron
TRX_CE=0; //SetnRF905instandbymode
TXEN=0; //setradioinRxmode
}
//-----------------------------------------------------初始化寄存器-----------------------------------------------
voidConfig905(void)
{
uchari;
CSN=0; //Spienableforwriteaspicommand
//SpiWrite(WC); //Writeconfigcommand寫放配置命令
for(i=0;i<11;i++) //Writeconfigrationwords寫放配置字
{
SpiWrite(RFConf[i]);
}
CSN=1; //DisableSpi
}
//-----------------------------------------------------發送數據打包---------------------------------------------------
voidTxPacket(uchar*TxRxBuf)
{
uchari;
//Config905();
CSN=0;
SpiWrite(WTP); //Writepayloadcommand
for(i=0;i<4;i++)
{
SpiWrite(TxRxBuf[i]); //Write32bytesTxdata
}//Spienableforwriteaspicommand
CSN=1;
Delay(1); //Spidisable
CSN=0; //Spienableforwriteaspicommand
SpiWrite(WTA); //Writeaddresscommand
for(i=0;i<4;i++) //Write4bytesaddress
{
SpiWrite(TxAddress[i]);
}
CSN=1; //Spidisable
TRX_CE=1; //SetTRX_CEhigh,startTxdatatransmission
Delay(1); //while(DR!=1);
TRX_CE=0; //SetTRX_CElow
}
//----------------------------------------------------------設置發送狀態---------------------------------------------
voidSetTxMode(void)
{
TRX_CE=0;
TXEN=1;
Delay(1); //delayformodechange(>=650us)
}
//-----------------------------------------------設置發送狀態---------------------------------------------------
voidSetRxMode(void)
{
TXEN=0;
TRX_CE=1;
Delay(1); //delayformodechange(>=650us)
}
//-------------------------------------------------判斷數據接收狀態-----------------------------------------------------
unsignedcharCheckDR(void) //檢查是否有新數據傳入DataReady
{
if(DR=1&&TRX_CE==1&&TXEN==0)
{
//Delay(50);
return1;
}
else
{
return0;
}
}
//----------------------------------------------------讀NRF905接收數據------------------------------------------------------------
voidRxPacket(void)
{
uchari;
Delay(1);
// TRX_CE=0; //SetnRF905instandbymode
Delay(100);
TRX_CE=0;
CSN=0; //Spienableforwriteaspicommand
Delay(1);
SpiWrite(RRP);
for(i=0;i<4;i++)
{
TxRxBuf[i]=SpiRead(); //Readdataandsavetobuffer
}
CSN=1;
Delay(10);
TRX_CE=1;
}
//--------------------------------------------------------數據接收------------------------------------------------
voidRX(void)
{
SetRxMode(); //SetnRF905inRxmode
while(CheckDR()==0);
Delay(10);
RxPacket();
}
這些是子函數。只要把一些關於電機的sbit定義去掉，剩下的就是真正的子函數了。
那麼，需注意的就只有nRF905Init();Config905();RX();SetTxMode();和一個TXbuf數組，把這幾個用好了，程序就跳出來了。nRF905Init();Config905();收發都需要，SetTxMode();發送要，RX();接收要。就是這樣了，最起碼我看是這樣。
