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我用AVR M16控制一个CC1101不停发送数据10ms间隔 一个接受数据，出现的问题是接受方GDO0_H偶尔变高，但进入后接收到的字节长度为0，数据也为0，我采用的是可变地址长度+地址滤波+CRC，后来把地址滤波去掉还是如此，请教各位有没有遇到这种情况，谢谢。
/***************************************************** Project : Version : Date : 2012-5-24 Author : Li Company : Comments: Chip type : ATmega16L Program type : Application AVR Core Clock frequency: 8.000000 MHz Memory model : Small External RAM size : 0 Data Stack size : 256 *****************************************************/ #include #include #define uchar unsigned char #define uint unsigned int /*手册上说读寄存器只需将寄存器地址的最高位设为1，写最高位为0（即为原来地址） 突发读写（连续）只需将第六位设为1 */ #define WRITE_BURST 0x40 //连续写入 #define READ_SINGLE 0x80 //读一次 #define READ_BURST 0xC0 //连续读 #define BYTES_IN_RXFIFO 0x7C //接受缓冲区中的有效字节数 #define CRC_OK 0x80 //CRC校验通过标志 #define GDO0 PORTA.0 #define GDO2 PORTA.2 #define MISO PORTB.6 #define MOSI PORTB.5 #define SCK PORTB.7 #define CSN PORTB.4 #define MISO_H (PINB&=(1<<6)) #define GDO0_H (PINA&=(1<<0)) #define GDO2_H (PINA&=(1<<2)) void SpiInit(void); void CpuInit(void); uchar SpiTxRxByte(uchar data); void Reset_CC1101(void); void PowerUp_Reset_CC1101(void); void SpiWriteReg(uchar addr,uchar value); void SpiWriteBurstReg(uchar addr,uchar *buffer,uchar count); void SpiStrobe(uchar strobe); uchar SpiReadReg(uchar addr); void SpiReadBurstReg(uchar addr,uchar *buffer,uchar count); void RfWriteRfSetting(void); void RfSendPacket(uchar *txBuffer,uchar size); uchar RfReceivePacket(uchar *rxBuffer,uchar length); uchar PaTable[] ={0xC0, 0xC8, 0x85, 0x51, 0x3A, 0x06, 0x1C, 0x6C}; //功率表 // CC1101 STROBE, CONTROL AND STATUS REGSITER #define CCxxx0_IOCFG2 0x00 // GDO2 output pin configuration #define CCxxx0_IOCFG1 0x01 // GDO1 output pin configuration #define CCxxx0_IOCFG0 0x02 // GDO0 output pin configuration #define CCxxx0_FIFOTHR 0x03 // RX FIFO and TX FIFO thresholds #define CCxxx0_SYNC1 0x04 // Sync word, high INT8U #define CCxxx0_SYNC0 0x05 // Sync word, low INT8U #define CCxxx0_PKTLEN 0x06 // Packet length #define CCxxx0_PKTCTRL1 0x07 // Packet automation control #define CCxxx0_PKTCTRL0 0x08 // Packet automation control #define CCxxx0_ADDR 0x09 // Device address #define CCxxx0_CHANNR 0x0A // Channel number #define CCxxx0_FSCTRL1 0x0B // Frequency synthesizer control #define CCxxx0_FSCTRL0 0x0C // Frequency synthesizer control #define CCxxx0_FREQ2 0x0D // Frequency control word, high INT8U #define CCxxx0_FREQ1 0x0E // Frequency control word, middle INT8U #define CCxxx0_FREQ0 0x0F // Frequency control word, low INT8U #define CCxxx0_MDMCFG4 0x10 // Modem configuration #define CCxxx0_MDMCFG3 0x11 // Modem configuration #define CCxxx0_MDMCFG2 0x12 // Modem configuration #define CCxxx0_MDMCFG1 0x13 // Modem configuration #define CCxxx0_MDMCFG0 0x14 // Modem configuration #define CCxxx0_DEVIATN 0x15 // Modem deviation setting #define CCxxx0_MCSM2 0x16 // Main Radio Control State Machine configuration #define CCxxx0_MCSM1 0x17 // Main Radio Control State Machine configuration #define CCxxx0_MCSM0 0x18 // Main Radio Control State Machine configuration #define CCxxx0_FOCCFG 0x19 // Frequency Offset Compensation configuration #define CCxxx0_BSCFG 0x1A // Bit Synchronization configuration #define CCxxx0_AGCCTRL2 0x1B // AGC control #define CCxxx0_AGCCTRL1 0x1C // AGC control #define CCxxx0_AGCCTRL0 0x1D // AGC control #define CCxxx0_WOREVT1 0x1E // High INT8U Event 0 timeout #define CCxxx0_WOREVT0 0x1F // Low INT8U Event 0 timeout #define CCxxx0_WORCTRL 0x20 // Wake On Radio control #define CCxxx0_FREND1 0x21 // Front end RX configuration #define CCxxx0_FREND0 0x22 // Front end TX configuration #define CCxxx0_FSCAL3 0x23 // Frequency synthesizer calibration #define CCxxx0_FSCAL2 0x24 // Frequency synthesizer calibration #define CCxxx0_FSCAL1 0x25 // Frequency synthesizer calibration #define CCxxx0_FSCAL0 0x26 // Frequency synthesizer calibration #define CCxxx0_RCCTRL1 0x27 // RC oscillator configuration #define CCxxx0_RCCTRL0 0x28 // RC oscillator configuration #define CCxxx0_FSTEST 0x29 // Frequency synthesizer calibration control #define CCxxx0_PTEST 0x2A // Production test #define CCxxx0_AGCTEST 0x2B // AGC test #define CCxxx0_TEST2 0x2C // Various test settings #define CCxxx0_TEST1 0x2D // Various test settings #define CCxxx0_TEST0 0x2E // Various test settings //状态寄存器定义 #define CCxxx0_PARTNUM 0x30 #define CCxxx0_VERSION 0x31 #define CCxxx0_FREQEST 0x32 #define CCxxx0_LQI 0x33 #define CCxxx0_RSSI 0x34 #define CCxxx0_MARCSTATE 0x35 #define CCxxx0_WORTIME1 0x36 #define CCxxx0_WORTIME0 0x37 #define CCxxx0_PKTSTATUS 0x38 #define CCxxx0_VCO_VC_DAC 0x39 #define CCxxx0_TXBYTES 0x3A #define CCxxx0_RXBYTES 0x3B #define CCxxx0_PATABLE 0x3E #define CCxxx0_TXFIFO 0x3F #define CCxxx0_RXFIFO 0x3F // Strobe commands 滤波命令 #define CCxxx0_SRES 0x30 // Reset chip. #define CCxxx0_SFSTXON 0x31 // Enable and calibrate frequency synthesizer (if MCSM0.FS_AUTOCAL=1). // If in RX/TX: Go to a wait state where only the synthesizer is // running (for quick RX / TX turnaround). #define CCxxx0_SXOFF 0x32 // Turn off crystal oscillator. #define CCxxx0_SCAL 0x33 // Calibrate frequency synthesizer and turn it off // (enables quick start). #define CCxxx0_SRX 0x34 // Enable RX. Perform calibration first if coming from IDLE and // MCSM0.FS_AUTOCAL=1. #define CCxxx0_STX 0x35 // In IDLE state: Enable TX. Perform calibration first if // MCSM0.FS_AUTOCAL=1. If in RX state and CCA is enabled: // Only go to TX if channel is clear. #define CCxxx0_SIDLE 0x36 // Exit RX / TX, turn off frequency synthesizer and exit // Wake-On-Radio mode if applicable. #define CCxxx0_SAFC 0x37 // Perform AFC adjustment of the frequency synthesizer #define CCxxx0_SWOR 0x38 // Start automatic RX polling sequence (Wake-on-Radio) #define CCxxx0_SPWD 0x39 // Enter power down mode when CSn goes high. #define CCxxx0_SFRX 0x3A // Flush the RX FIFO buffer. #define CCxxx0_SFTX 0x3B // Flush the TX FIFO buffer. #define CCxxx0_SWORRST 0x3C // Reset real time clock. #define CCxxx0_SNOP 0x3D // No operation. May be used to pad strobe commands to two // INT8Us for simpler software. // RF_SETTINGS is a data structure which contains all relevant CCxxx0 registers typedef struct S_RF_SETTINGS { uint FSCTRL1; // Frequency synthesizer control. uint FSCTRL0; // Frequency synthesizer control. uint FREQ2; // Frequency control word, high INT8U. uint FREQ1; // Frequency control word, middle INT8U. uint FREQ0; // Frequency control word, low INT8U. uint MDMCFG4; // Modem configuration. uint MDMCFG3; // Modem configuration. uint MDMCFG2; // Modem configuration. uint MDMCFG1; // Modem configuration. uint MDMCFG0; // Modem configuration. uint CHANNR; // Channel number. uint DEVIATN; // Modem deviation setting (when FSK modulation is enabled). uint FREND1; // Front end RX configuration. uint FREND0; // Front end RX configuration. uint MCSM0; // Main Radio Control State Machine configuration. uint FOCCFG; // Frequency Offset Compensation Configuration. uint BSCFG; // Bit synchronization Configuration. uint AGCCTRL2; // AGC control. uint AGCCTRL1; // AGC control. uint AGCCTRL0; // AGC control. uint FSCAL3; // Frequency synthesizer calibration. uint FSCAL2; // Frequency synthesizer calibration. uint FSCAL1; // Frequency synthesizer calibration. uint FSCAL0; // Frequency synthesizer calibration. uint FSTEST; // Frequency synthesizer calibration control uint TEST2; // Various test settings. uint TEST1; // Various test settings. uint TEST0; // Various test settings. uint IOCFG2; // GDO2 output pin configuration uint IOCFG0; // GDO0 output pin configuration uint PKTCTRL1; // Packet automation control. uint PKTCTRL0; // Packet automation control. uint ADDR; // Device address. uint PKTLEN; // Packet length. } RF_SETTINGS; ///////////////////////////////////////////////////////////////// //下面的值来自于软件自动计算模式为简单模式 Generic 434Mhz low data rate 2.4k 其他选项默认 const RF_SETTINGS rfSettings = { 0x0B, // FSCTRL1 Frequency synthesizer control. 0x00, // FSCTRL0 Frequency synthesizer control. 应该是确定频率跳帧 0x10, // FREQ2 Frequency control word, high byte. 0xA7, // FREQ1 Frequency control word, middle byte. 0x62, // FREQ0 Frequency control word, low byte. 确定基准频率432MHZ 0x2D, // MDMCFG4 Modem configuration. 0x3B, // MDMCFG3 Modem configuration. 0x73, // MDMCFG2 Modem configuration. 0x22, // MDMCFG1 Modem configuration. 0xF8, // MDMCFG0 Modem configuration. 调制解调器配置 0x00, // CHANNR Channel number. 0x00, // DEVIATN Modem deviation setting (when FSK modulation is enabled). 0xB6, // FREND1 Front end RX configuration. 0x10, // FREND0 Front end RX configuration. 功率 0x18, // MCSM0 Main Radio Control State Machine configuration. 校准设置 0x1D, // FOCCFG Frequency Offset Compensation Configuration.频率偏移补偿 0x1C, // BSCFG Bit synchronization Configuration. 同步字配置 0xC7, // AGCCTRL2 AGC control. 0x00, // AGCCTRL1 AGC control. 0xB2, // AGCCTRL0 AGC control. 0xEA, // FSCAL3 Frequency synthesizer calibration. 0x0A, // FSCAL2 Frequency synthesizer calibration. 0x00, // FSCAL1 Frequency synthesizer calibration. 0x11, // FSCAL0 Frequency synthesizer calibration. 0x59, // FSTEST Frequency synthesizer calibration. 0x88, // TEST2 Various test settings. 0x31, // TEST1 Various test settings. 0x0B, // TEST0 Various test settings. 0x0B, // IOCFG2 GDO2 output pin configuration.这里应该只是用到了GDO0所以GDO2的配置无所谓 0x06, // IOCFG0 GDO0 output pin configuration. 发送/接受到同步字时GDO0置位，并在数据包的末尾取消置位 0x05, // PKTCTRL1 Packet automation control. 加入2个状态字节 地址校验 无广播 0x05, // PKTCTRL0 Packet automation control. CRC校验开启 可变的数据包长度模式 0x01, // ADDR Device address. 0xFF // PKTLEN Packet length. }; void SpiInit(void) //使用SPI 要将CSN拉低 { SPCR=0x50; //主机模式 模式0 使能SPI SPSR=0x00; //MSB在前 SPI时钟2MHZ } void CpuInit(void) { SpiInit(); delay_ms(10); } uchar SpiTxRxByte(uchar data) { uchar temp; SPDR=data; while(!(SPSR&(1< return temp; } void Reset_CC1101(void) { CSN=0; //拉低准备进行SPI while(MISO_H); //等待CC110响应（CC1101的SO变低） SpiTxRxByte(CCxxx0_SRES); //发送复位命令 while(MISO_H); //再次变低 复位完成 进入idle状态 CSN=1; //结束使能 } void PowerUp_Reset_CC1101(void) { CSN=1; SCK=1; MOSI=0; delay_us(1); CSN=0; delay_us(1); CSN=1; delay_us(80); SCK=0; Reset_CC1101(); } void SpiWriteReg(uchar addr,uchar value) //写内容到寄存器 { CSN=0; while(MISO_H); SpiTxRxByte(addr); //写地址 delay_us(10); SpiTxRxByte(value); //写入内容 CSN=1; } //SPI连续写入配置寄存器 void SpiWriteBurstReg(uchar addr,uchar *buffer,uchar count) { uchar i,temp; temp=addr|WRITE_BURST; CSN=0; while(MISO_H); SpiTxRxByte(temp); for(i=0;i SpiTxRxByte(buffer[i]); } CSN=1; } void SpiStrobe(uchar strobe) //SPI命令写入 { CSN=0; while(MISO_H); SpiTxRxByte(strobe); CSN=1; } / uchar SpiReadReg(uchar addr) //读一个寄存器内容 { uchar temp,value; temp=addr|READ_SINGLE; //读寄存器命令 CSN=0; while(MISO_H); SpiTxRxByte(temp); value=SpiTxRxByte(0x00); //这里发送什么数据即可（验证） CSN=1; return value; } void SpiReadBurstReg(uchar addr,uchar *buffer,uchar count) { uchar i,temp; temp=addr|READ_BURST; CSN=0; while(MISO_H); SpiTxRxByte(temp); for(i=0;i buffer[i]=SpiTxRxByte(0x00); //读出来的内容存在buffer中 } CSN=1; } void RfWriteRfSetting(void) //配置CC1101 { SpiWriteReg(CCxxx0_FSCTRL1, rfSettings.FSCTRL1); SpiWriteReg(CCxxx0_FSCTRL0, rfSettings.FSCTRL0); SpiWriteReg(CCxxx0_FREQ2, rfSettings.FREQ2); SpiWriteReg(CCxxx0_FREQ1, rfSettings.FREQ1); SpiWriteReg(CCxxx0_FREQ0, rfSettings.FREQ0); SpiWriteReg(CCxxx0_MDMCFG4, rfSettings.MDMCFG4); SpiWriteReg(CCxxx0_MDMCFG3, rfSettings.MDMCFG3); SpiWriteReg(CCxxx0_MDMCFG2, rfSettings.MDMCFG2); SpiWriteReg(CCxxx0_MDMCFG1, rfSettings.MDMCFG1); SpiWriteReg(CCxxx0_MDMCFG0, rfSettings.MDMCFG0); SpiWriteReg(CCxxx0_CHANNR, rfSettings.CHANNR); SpiWriteReg(CCxxx0_DEVIATN, rfSettings.DEVIATN); SpiWriteReg(CCxxx0_FREND1, rfSettings.FREND1); SpiWriteReg(CCxxx0_FREND0, rfSettings.FREND0); SpiWriteReg(CCxxx0_MCSM0 , rfSettings.MCSM0 ); SpiWriteReg(CCxxx0_FOCCFG, rfSettings.FOCCFG); SpiWriteReg(CCxxx0_BSCFG, rfSettings.BSCFG); SpiWriteReg(CCxxx0_AGCCTRL2, rfSettings.AGCCTRL2); SpiWriteReg(CCxxx0_AGCCTRL1, rfSettings.AGCCTRL1); SpiWriteReg(CCxxx0_AGCCTRL0, rfSettings.AGCCTRL0); SpiWriteReg(CCxxx0_FSCAL3, rfSettings.FSCAL3); SpiWriteReg(CCxxx0_FSCAL2, rfSettings.FSCAL2); SpiWriteReg(CCxxx0_FSCAL1, rfSettings.FSCAL1); SpiWriteReg(CCxxx0_FSCAL0, rfSettings.FSCAL0); SpiWriteReg(CCxxx0_FSTEST, rfSettings.FSTEST); SpiWriteReg(CCxxx0_TEST2, rfSettings.TEST2); SpiWriteReg(CCxxx0_TEST1, rfSettings.TEST1); SpiWriteReg(CCxxx0_TEST0, rfSettings.TEST0); SpiWriteReg(CCxxx0_IOCFG2, rfSettings.IOCFG2); SpiWriteReg(CCxxx0_IOCFG0, rfSettings.IOCFG0); SpiWriteReg(CCxxx0_PKTCTRL1, rfSettings.PKTCTRL1); SpiWriteReg(CCxxx0_PKTCTRL0, rfSettings.PKTCTRL0); SpiWriteReg(CCxxx0_ADDR, rfSettings.ADDR); SpiWriteReg(CCxxx0_PKTLEN, rfSettings.PKTLEN); } void RfSendPacket(uchar *txbuffer,uchar size) //CC1101发送一组数据 { uchar i; SpiWriteReg(CCxxx0_TXFIFO,size); //这里要加入目标的地址 SpiWriteBurstReg(CCxxx0_TXFIFO,txbuffer,size); //写入要发送的数据 SpiStrobe(CCxxx0_STX); //进入发送模式发送数据 i=0; while(!GDO0_H) //发送到同步字时置位 { if(i>10) //限时等待 break; delay_ms(1); i++; } i=0; while(GDO0_H) //发送到数据末尾取消置位 { if(i>10) break; delay_ms(1); i++; } delay_ms(1); SpiStrobe(CCxxx0_SFTX); //刷新发送FIFO SpiStrobe(CCxxx0_SIDLE); } //接受一组数据 函数要改进 uchar RfReceivePacket(uchar *rxbuffer,uchar length) { uchar status[2]; uchar size=0; delay_ms(1); size=SpiReadReg(CCxxx0_RXFIFO); //接受到得数据长度 if(size SpiReadBurstReg(CCxxx0_RXFIFO,rxbuffer,size); SpiReadBurstReg(CCxxx0_RXFIFO,status,2); } SpiStrobe(CCxxx0_SFRX); //刷新接受缓冲区 return (status[1]&CRC_OK); } // Declare your global variables here uchar TxBuffer[8]={0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08}; uchar RxBuffer[10]; void main(void) { // Declare your local variables here uchar temp; PORTA=0x00; DDRA=0x00; PORTB=0x10; //CSN输出高电平 不使能 DDRB=0x0B; // MOSI SCK输出低电平 PORTC=0x00; DDRC=0x00; PORTD=0x00; DDRD=0x00; CpuInit(); PowerUp_Reset_CC1101(); RfWriteRfSetting(); SpiWriteBurstReg(CCxxx0_PATABLE,PaTable,8); SpiStrobe(CCxxx0_SIDLE); SpiStrobe(CCxxx0_SRX); //进入接受状态 while (1) { // Place your code here if(GDO0_H) { temp=RfReceivePacket(RxBuffer,10); if(temp) { SpiStrobe(CCxxx0_SIDLE); SpiStrobe(CCxxx0_SRX); //进入接受状态 } } } } 
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3个回答
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我QQ825014522 讨论下啊 我用51 也实现不了啊啊
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我多字节发送，接收不正确···不知道你们弄得么杨了现在？求指导
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也曾遇到这样问题
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只有小组成员才能发言，加入小组>>
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