基于430單片機(jī)的NRF905收發(fā)驅(qū)動(dòng)程序

作者：時(shí)間：2016-11-27 來(lái)源：網(wǎng)絡(luò)

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#include

#include "BaseType.h"

#include

#define WaitKeyDw 100

#define WaitKeyUp 101

#define KeyDwTimes 30

#define WRC 0x00 //W_RF_CONFIG

#define RRC 0x10 //R_RF_CONFIG

#define WTP 0x20 //W_TX_PAYLOAD

#define RTP 0x21 //R_TX_PAYLOAD

#define WTA 0x22 //W_TX_ADDRESS

#define RTA 0x23 //R_TX_ADDRESS

#define RRP 0x24 //R_RX_PAYLOAD

#define RAD 0x40 //R_ADC_DATA

#define WAC 0x44 //W_ADC_CONFIG

#define RAC 0x46 //R_ADC_CONFIG

#define WTU 0x50 //W_TEST_UNLOCK (use with data A5)

#define WTR 0x52 //W_TEST_REGISTER

#define RTR 0x53 //R_TEST_REGISTER

#define CC 0x80 //CHANNEL_CONFIG

#define SAV 0xC0 //START_ADC_CONV

#define HFREQ 1 // 0=433MHz, 1=868/915MHz

#define POWER 3 // 0=min power...3 = max power

#define RFTxLen 16 //射頻發(fā)送綬沖區(qū)長(zhǎng)度

#define RFRxLen 16 //射頻接收綬沖區(qū)長(zhǎng)度

#define INT8U unsigned char

#define INT16U unsigned int

#define _nop_() _NOP()

INT8U Nrf9e5Config[10] = {

0x6B, //頻道設(shè)置

0x0C, //自動(dòng)重發(fā)關(guān)，發(fā)送節(jié)電模式關(guān)，輸出功率10dB，433.1MHZ

0x44, //收發(fā)地址都為4字節(jié)

RFRxLen, //接收數(shù)據(jù)長(zhǎng)度，10字節(jié)

RFTxLen, //發(fā)送數(shù)據(jù)長(zhǎng)度，10字節(jié)

0xE7,

0xE7, //地址

0xDF //16位校驗(yàn)，CRC開，16M晶振，外部時(shí)鐘使能500KHZ輸出

};

INT8U RFRxBuf[RFRxLen+2]; //射頻接收緩沖區(qū)

INT8U RFTxBuf[RFTxLen+2]; //射頻接收緩沖區(qū)

U32 CntTmp;

void PORT_Init(void)

{

P2SEL &= ~(BIT5|BIT4|BIT3|BIT2|BIT1|BIT0);

P2DIR |= (BIT3|BIT2|BIT1);

//p2.1--PWR_UP,OUTPUT

//p2.2--TRX_CE,OUTPUT

//p2.3--TX_EN, OUTPUT

P2DIR &= ~(BIT5|BIT4|BIT0);

//p2.0--uCLK, INPUT

//p2.4--KEY1, INPUT

//p2.5--KEY2, INPUT

P1SEL &= ~(BIT7|BIT6|BIT5|BIT4|BIT3|BIT2|BIT1);

P1DIR &= ~(BIT7|BIT6|BIT5);

//p1.7--CD, INPUT

//p1.6--AM, INPUT

//p1.5--DR, INPUT

P1DIR |= (BIT4|BIT3|BIT2|BIT1);//LED4--LED1, OUTPUT

P1OUT |= (BIT4|BIT3|BIT2|BIT1);

}

void SPI_Init(void)

{

P3SEL |= (BIT3|BIT2|BIT1);

P3SEL &= ~BIT0;

// P3.1 P3.2 P3.3作為SPI的管腳

// p3.0--CE905,905片選, I/O

// p3.1--MOSI,

// p3.2--MISO,

// P3.3--SCK905,

P3DIR |= (BIT3|BIT1|BIT0);

//P3.3作為輸出

//P3.1作為輸出

//P3.0作為輸出

P3OUT |= (BIT3|BIT1|BIT0);

//P3.0輸出高電平

//P3.1輸出高電平

//P3.3輸出高電平

// 以下設(shè)置SPI口的參數(shù)

UCTL0 |= SWRST; //為設(shè)置串口作準(zhǔn)備

UCTL0 |= (CHAR + SYNC + MM); //數(shù)據(jù)為8比特，選擇SPI模式，單片機(jī)為主機(jī)模式

UTCTL0 &= ~(CKPH|CKPL); //SPI時(shí)鐘設(shè)置

UTCTL0 |= (SSEL1|STC); // 時(shí)鐘源為SMCLK，選擇3線模式

UBR00 = 0x02; //波特率為ACLK/2

UBR10 = 0x00; //波特率為ACLK/2

UMCTL0 = 0x00; //調(diào)整寄存器

ME1 |= USPIE0; //SPI0模塊允許

IE1 |= URXIE0; //接收中斷允許

IE1 |= UTXIE0; //發(fā)送中斷允許

UCTL0 &= ~SWRST; // Initalise USART state machine

}

void Init_CLK(void)

{

unsigned int i;

BCSCTL1 = 0X00;//將寄存器的內(nèi)容清零

//XT2震蕩器開啟

//LFTX1工作在低頻模式

//ACLK的分頻因子為1

{

IFG1 &= ~OFIFG; // 清除OSCFault標(biāo)志

for (i = 0x20; i > 0; i--);

}

while ((IFG1 & OFIFG) == OFIFG); // 如果 OSCFault == 1

BCSCTL2 = 0x00; //將寄存器的內(nèi)容清零

BCSCTL2 |=SELM_2; //MCLK select lftx

BCSCTL2 |= SELS; //SMCLK--DCOCLK

}

void Delay_ms(unsigned long nValue)//毫秒為單位，8MHz為主時(shí)鐘

{

unsigned long nCount;

int i;

unsigned long j;

nCount = 2667;

for(i = nValue;i > 0;i--)

{

for(j = nCount;j > 0;j--);

}

return;

}

void Delay_us(unsigned long nValue)//微秒為單位，8MHz為主時(shí)鐘

{

int nCount;

int i;

int j;

nCount = 3;

for(i = nValue;i > 0;i--)

{

for(j = nCount;j > 0;j--);

}

return;

}

void delay(INT16U s)

{

INT16U i;

for(i=0; i

}

void SpiWriteByte(INT8U dat)

{

// while ((IFG1 & UTXIFG0)==0x0);

U0TXBUF = dat;

while ((U0TCTL & TXEPT) == 0x0);

}

INT8U SpiReadByte(void)

{

//INT8U temp;

U0TXBUF = 0;

while ((U0TCTL & TXEPT) == 0x0);

// while((IFG1 & URXIFG0)==0);

// temp=U0RXBUF;

// return temp;

return U0RXBUF;

}

void INIT_905(void)

{

INT8U i;

TRX_CE_0; //TRX_CE = 0;

TX_EN_0; //TX_EN = 0;

CE905_0; //ce905=0

SpiWriteByte(WRC);

for(i=0; i<10; i++)

{

SpiWriteByte(Nrf9e5Config[i]);

}

// while ((IFG1 & UTXIFG0)==0x0);

CE905_1;//CE_905 = 1

}

void TransmitBytes(void)

{

INT8U i;

TX_EN_1; //TX_EN=1

TRX_CE_0; //TRX_CE = 0

delay(1000);

CE905_0; //ce905=0

SpiWriteByte(WTA);

SpiWriteByte(0xE7);

// while ((IFG1 & UTXIFG0)==0x0);

CE905_1; //CE_905 = 1

delay(1);

CE905_0; //ce905=0

SpiWriteByte(WTP);

for(i=0; i

{

SpiWriteByte(RFTxBuf[i]);

}

// while ((IFG1 & UTXIFG0)==0x0);

CE905_1; //CE_905 = 1

delay(1);

TRX_CE_1; //TRX_CE=1

CntTmp = 0;

while(DR905 == 0)//; //DR=0

{

CntTmp ++;

}

TRX_CE_0; //TRX_CE = 0

TX_EN_0; //TX_EN=0

}

INT8U Recepacket(void)

{

INT8U i;

TX_EN_0; //TX_EN=0

TRX_CE_1; //TRX_CE=1

while(CD905 == 0);

TRX_CE_0; //TRX_CE=0

CE905_0; //ce905=0

SpiWriteByte(RRP);

for(i=0; i

{

RFRxBuf[i] = SpiReadByte(); //接收數(shù)據(jù)

}

while(DR905) //DR=1

{

SpiReadByte();

}

CE905_1; //ce905=1

return 1;

}

void ChangeMode(U8 mode)

{

switch(mode)

{

case PowerDown:

PD905; /// 配置為掉電模式 ///

TX_EN_0;

TRX_CE_0;

break;

case Standby:

TRX_CE_0;

TX_EN_0;

PU905;

break;

case RXMode:

PU905;

// delay(2);

TX_EN_0;

_NOP();

TRX_CE_1;

break;

case TXMode:

TX_EN_1;

PU905;

TRX_CE_0;

break;

case TXData:

TRX_CE_1;

delay(2);

TRX_CE_0; /// ?? Make a 20us Pulse as nRF905 Datasheet ///

break;

}

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基于430單片機(jī)的NRF905收發(fā)驅(qū)動(dòng)程序

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