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发表于 2010-8-1 16:46:17
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偶爷们
还有人要我的代码
先说前面
看了不许吐
Keil编译，MCU 51
#include "at89x52.h"
#include "si4432.h"
#include "string.h"
U8 sss,fff,ccc,ddd;
//f发射，s ACK，c CRC，d
void WriteDataLCM(unsigned char WDLCM);
void WriteCommandLCM(unsigned char WCLCM,BuysC);
unsigned char ReadDataLCM(void);
unsigned char ReadStatusLCM(void);
void LCMInit(void);
void LCD_cls(void);
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);
void Delay5Ms(void);
void Delay400Ms(void);
void jc(q,w,d);
void delay(unsigned char delaytime);
void SpiRfWrite8Bit(unsigned char byte);
unsigned char SpiRfRead8Bit(void);
void SpiWriteRegister(unsigned char add, unsigned char reg);
unsigned char SpiReadRegister(unsigned char add);
void RF_init(void);
void RFSetRxMode(void);
void RFSetTxMode(void);
void RFSetIdleMode(void);
void RFFIFOSendData(U8 length, U8 *payload);
void RFWriteFIFO(U8 length, U8 *payload);
void RFSendOutData(void);
void RFResetRxFIFO(void);
void RFResetTxFIFO(void);
unsigned char wendu();
unsigned char jieshou();
void RFIN(void)
{
U8 ItStatus1,ItStatus2;
U16 delay;
U8 temp8;
//Turn on the radio by pulling down the PWRDN pin
SDN = 0;
//Wait at least 15ms befory any initialization SPI commands are sent to the radio
// (wait for the power on reset sequence)
for (temp8=0;temp8<15;temp8++)
{
for(delay=0;delay<10000;delay++);
}
LCMInit();
LCD_cls();
//read interrupt status registers to clear the interrupt flags and release NIRQ pin
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
//SW reset
SpiWriteRegister(0x07, 0x80); //write 0x80 to the Operating & Function Control1 register
//wait for chip ready interrupt from the radio (while the nIRQ pin is high)
while ( NIRQ == 1);
//read interrupt status registers to clear the interrupt flags and release NIRQ pinzigbee
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
/*set the physical parameters*/
//set the center frequency to 915 MHz
SpiWriteRegister(0x75, 0x53); //write data to the Frequency Band Select register
SpiWriteRegister(0x76, 0x4B); //write data to the Nominal Carrier Frequency1 register
SpiWriteRegister(0x77, 0x00); //write data to the Nominal Carrier Frequency0 register
//发射频率
SpiWriteRegister(0x6D, 0x1F); //write 0x1F to the TX Power register
//发射功率
SpiWriteRegister(0x34, 0x0C);//0x0C //write 0x14 to the Preamble Length register
//前导码长度
//set preamble detection threshold to 20bits
SpiWriteRegister(0x35, 0x2A);
//xxxxx 处理半字节数 5 xxx允许不连续错误数 2
//00101 010 //write 0x2A to the Preamble Detection Control register
//Disable header bytes; set variable packet length (the length of the payload is defined by the
//received packet length field of the packet); set the synch word to two bytes long
SpiWriteRegister(0x33, 0x02);//0x02
//帧头控制2
//同步字 2 和 3 //write 0x02 to the Header Control2 register
//Set the sync word pattern to 0x2DD4
SpiWriteRegister(0x36, 0x2D); //write 0x2D to the Sync Word 3 register
SpiWriteRegister(0x37, 0xD4);
//同步字2 和 3
//36H同步字3为2D，37H同步字为D4 //write 0xD4 to the Sync Word 2 register
//enable the TX & RX packet handler and CRC-16 (IBM) check
SpiWriteRegister(0x30, 0x8D);//0x8D
//数据存数控制
//使能数据包FIFO的发射与接收的的自动处理
//使能CRC并设置为16位CRC ///////重大配置！！！！！！//////// //write 0x8D to the Data Access Control register
//Disable the receive header filters
SpiWriteRegister(0x32, 0x00 ); //write 0x00 to the Header Control1 register
//帧头控制1
//无广播地址，没有接收到帧头检测
//enable FIFO mode and GFSK modulation
SpiWriteRegister(0x71, 0x63);//0x63 //write 0x63 to the Modulation Mode Control 2 register
//FIFO模式，GFSK
SpiWriteRegister(0x0B, 0xCA); //Set GPIO0 output
SpiWriteRegister(0x0C, 0xCA); //Set GPIO1 output
SpiWriteRegister(0x0D, 0xCA); //Set GPIO2 output
//3个GPIO配置成直接数字输出
//Set Crystal Oscillator Load Capacitance register, the user should change the value of this register while use different crystal.
SpiWriteRegister(0x09, 0xB8);
//晶体谐振电容，厂家给出0xB8
SpiWriteRegister(0x6E, 0x09); //write data to the TXDataRate 1 register
SpiWriteRegister(0x6F, 0xD5); //write data to the TXDataRate 0 register
//发射波特率
SpiWriteRegister(0x58, 0x80);
//默认电荷泵对PLL的修正，芯片默认 //set the Tx deviation register (+-20kHz)
SpiWriteRegister(0x72, 0x20); //write data to the Frequency Deviation register
//频偏
SpiWriteRegister(0x70, 0x2C);//0x2C //write data to the Modulation Mode Control 1 register
//曼彻斯特反演？？？？？？？？？？？？？？？？？？？
/*set the modem parameters according to the exel calculator(parameters: 1.2 kbps, deviation: 20 kHz*/
SpiWriteRegister(0x1C, 0x2C); //write data to the IF Filter Bandwidth register
//IF滤波器带宽
SpiWriteRegister(0x20, 0x41);//0x41 //write data to the Clock Recovery Oversampling Ratio register
//时钟恢复过抽采样
SpiWriteRegister(0x21, 0x60); //write data to the Clock Recovery Offset 2 register
//时钟恢复偏差2
SpiWriteRegister(0x22, 0x27); //write data to the Clock Recovery Offset 1 register
//时钟恢复偏差1
SpiWriteRegister(0x23, 0x52); //write data to the Clock Recovery Offset 0 register
//时钟恢复偏差0
SpiWriteRegister(0x24, 0x00); //write data to the Clock Recovery Timing Loop Gain 1 register
//时钟恢复定时循环增益1
SpiWriteRegister(0x25, 0x04); //write data to the Clock Recovery Timing Loop Gain 0 register
//时钟恢复定时循环增益0
SpiWriteRegister(0x1D, 0x40); //write data to the AFC Loop Gearshift Override register
//AFC循环变速加速 仅AFC使能
SpiWriteRegister(0x1E, 0x0A);
//AFC定时
SpiWriteRegister(0x2A, 0x0F); //write data to the AFC Limiter register
//AFC显幅
SpiWriteRegister(0x1F, 0x03);
//时钟恢复变速超速 时钟恢复慢变速值
SpiWriteRegister(0x69, 0x60);
//自动增益 (AGC）
/*enable receiver chain*/
RFSetRxMode(); //write 0x05 to the Operating Function Control 1 register
//Enable two interrupts:
// a) one which shows that a valid packet received: 'ipkval'
// b) second shows if the packet received with incorrect CRC: 'icrcerror'
SpiWriteRegister(0x05, 0x03); //write 0x03 to the Interrupt Enable 1 register
SpiWriteRegister(0x06, 0x00); //write 0x00 to the Interrupt Enable 2 register
//read interrupt status registers to release all pending interrupts
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
/*MAIN Loop*/
DisplayListChar(0,3,"RX + TX");
}
void main(void)
{
U8 ItStatus1,ItStatus2;
U16 delay;
U8 length,temp8;
U8 payload[10];
RFIN();
while(1)
{
//Poll the port pins of the MCU to figure out whether the push button is pressed or not
if(PB == 0)
{
//Wait for releasing the push button
while( PB == 0 );
//disable the receiver chain (but keep the XTAL running to have shorter TX on time!)
RFSetIdleMode(); //write 0x01 to the Operating Function Control 1 register
//turn on the LED to show the packet transmission
//TX_LED = 1;
//The Tx deviation register has to set according to the deviation before every transmission (+-45kHz)
SpiWriteRegister(0x72, 0x20); //write 0x48 to the Frequency Deviation register
/*SET THE CONTENT OF THE PACKET*/
//set the length of the payload to 8bytes
SpiWriteRegister(0x3E, 8); //write 8 to the Transmit Packet Length register
//fill the payload into the transmit FIFO
SpiWriteRegister(0x7F, 0x42); //write 0x42 ('B') to the FIFO Access register
SpiWriteRegister(0x7F, 0x55); //write 0x55 ('U') to the FIFO Access register
SpiWriteRegister(0x7F, 0x54); //write 0x54 ('T') to the FIFO Access register
SpiWriteRegister(0x7F, 0x54); //write 0x54 ('T') to the FIFO Access register
SpiWriteRegister(0x7F, 0x4F); //write 0x4F ('O') to the FIFO Access register
SpiWriteRegister(0x7F, 0x4E); //write 0x4E ('N') to the FIFO Access register
SpiWriteRegister(0x7F, 0x31); //write 0x31 ('1') to the FIFO Access register
SpiWriteRegister(0x7F, 0x0D); //write 0x0D (CR) to the FIFO Access register
//Disable all other interrupts and enable the packet sent interrupt only.
//This will be used for indicating the successfull packet transmission for the MCU
SpiWriteRegister(0x05, 0x04); //write 0x04 to the Interrupt Enable 1 register
SpiWriteRegister(0x06, 0x00); //write 0x03 to the Interrupt Enable 2 register
//Read interrupt status regsiters. It clear all pending interrupts and the nIRQ pin goes back to high.
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
/*enable transmitter*/
//The radio forms the packet and send it automatically.
RFSetTxMode(); //write 0x09 to the Operating Function Control 1 register
DisplayListChar(0,0,"TX Transmit");
jc(13,0,++fff);
/*wait for the packet sent interrupt*/
//The MCU just needs to wait for the 'ipksent' interrupt.
while(NIRQ == 1);
//read interrupt status registers to release the interrupt flags
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
//wait a bit for showing the LED a bit longer
for(delay = 0; delay < 10000;delay++);
//turn off the LED
//TX_LED = 0;
//after packet transmission set the interrupt enable bits according receiving mode
//Enable two interrupts:
// a) one which shows that a valid packet received: 'ipkval'
// b) second shows if the packet received with incorrect CRC: 'icrcerror'
SpiWriteRegister(0x05, 0x03); //write 0x03 to the Interrupt Enable 1 register
SpiWriteRegister(0x06, 0x00); //write 0x00 to the Interrupt Enable 2 register
//read interrupt status registers to release all pending interrupts
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
//set the Frequency Deviation register according to the AFC limiter
//SpiWriteRegister(0x72, 0x1F); //write 0x1F to the Frequency Deviation register
/*enable receiver chain again*/
RFSetRxMode(); //write 0x05 to the Operating Function Control 1 register
}
//wait for the interrupt event
//If it occurs, then it means a packet received or CRC error happened
if( NIRQ == 0 )
{
//disable the receiver chain
SpiWriteRegister(0x07, 0x01); //write 0x01 to the Operating Function Control 1 register
//read interrupt status registers
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
/*CRC Error interrupt occured*/
if( (ItStatus1 & 0x01) == 0x01 )
{
DisplayListChar(0,1,"CRC Error");
jc(10,1,++ccc);
//reset the RX FIFO
SpiWriteRegister(0x08, 0x02); //write 0x02 to the Operating Function Control 2 register
SpiWriteRegister(0x08, 0x00); //write 0x00 to the Operating Function Control 2 register
//blink all LEDs to show the error
for(delay = 0; delay < 10000;delay++);
}
/*packet received interrupt occured*/
if( (ItStatus1 & 0x02) == 0x02 )
{
//Read the length of the received payload
length = SpiReadRegister(0x4B); //read the Received Packet Length register
//check whether the received payload is not longer than the allocated buffer in the MCU
if(length < 11)
{
//Get the reeived payload from the RX FIFO
for(temp8=0;temp8 < length;temp8++)
{
payload[temp8] = SpiReadRegister(0x7F); //read the FIFO Access register
}
//check whether the acknowledgement packet received
if( length == 4 )
{
if( memcmp(&payload[0], "ACK", 3) == 0 )
{
//blink LED2 to show that ACK received
DisplayListChar(0,2,"ACK OK");
jc(7,2,++sss);
for(delay = 0; delay < 10000;delay++);
}
}
//check whether an expected packet received, this should be acknowledged
if( length == 8 )
{
if( memcmp(&payload[0], "BUTTON1", 7) == 0 )
{
DisplayListChar(10,2,"DATA OK");
jc(18,2,++ddd);
//blink LED2 to show that the packet received
//RX_LED = 1;
for(delay = 0; delay < 10000;delay++);
//RX_LED = 0;
/*send back an acknowledgement*/
//turn on LED1 to show packet transmission
//TX_LED = 1;
//The Tx deviation register has to set according to the deviation before every transmission (+-45kHz)
SpiWriteRegister(0x72, 0x20); //write 0x48 to the Frequency Deviation register
/*set packet content*/
//set the length of the payload to 4bytes
SpiWriteRegister(0x3E, 4); //write 4 to the Transmit Packet Length register
//fill the payload into the transmit FIFO
SpiWriteRegister(0x7F, 0x41); //write 0x42 ('A') to the FIFO Access register
SpiWriteRegister(0x7F, 0x43); //write 0x55 ('C') to the FIFO Access register
SpiWriteRegister(0x7F, 0x4B); //write 0x54 ('K') to the FIFO Access register
SpiWriteRegister(0x7F, 0x0D); //write 0x0D (CR) to the FIFO Access register
//Disable all other interrupts and enable the packet sent interrupt only.
//This will be used for indicating the successfull packet transmission for the MCU
SpiWriteRegister(0x05, 0x04); //write 0x04 to the Interrupt Enable 1 register
SpiWriteRegister(0x06, 0x00); //write 0x03 to the Interrupt Enable 2 register
//Read interrupt status regsiters. It clear all pending interrupts and the nIRQ pin goes back to high.
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
/*enable transmitter*/
//The radio forms the packet and send it automatically.
RFSetTxMode(); //write 0x09 to the Operating Function Control 1 register
/*wait for the packet sent interrupt*/
//The MCU just needs to wait for the 'ipksent' interrupt.
while(NIRQ == 1);
//read interrupt status registers to release the interrupt flags
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
//wait a bit for showing the LED a bit longer
for(delay = 0; delay < 10000;delay++);
//turn off the LED
//TX_LED = 0;
//after packet transmission set the interrupt enable bits according receiving mode
//Enable two interrupts:
// a) one which shows that a valid packet received: 'ipkval'
// b) second shows if the packet received with incorrect CRC: 'icrcerror'
SpiWriteRegister(0x05, 0x03); //write 0x03 to the Interrupt Enable 1 register
SpiWriteRegister(0x06, 0x00); //write 0x00 to the Interrupt Enable 2 register
//read interrupt status registers to release all pending interrupts
ItStatus1 = SpiReadRegister(0x03); //read the Interrupt Status1 register
ItStatus2 = SpiReadRegister(0x04); //read the Interrupt Status2 register
//set the Frequency Deviation register according to the AFC limiter
//SpiWriteRegister(0x72, 0x1F); //write 0x1F to the Frequency Deviation register
}
}
}
}
/*enable receiver chain again*/
RFSetRxMode(); //write 0x05 to the Operating Function Control 1 register
}
}
} |
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发表于 2010-7-22 20:56:54
