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13926563901
18925580829
飛江淘寶店鋪
發布時間：2018-03-26 瀏覽量：
1.初始化SPI,MCU各引腳。
| Configration Registers |
共47個，可讀，可寫 0x00～0x2E |
|||
| Status Registers |
共14個，只讀 0x30~0x3D |
|||
| Command Strobe |
共14個，只寫 尋址空間：0x30~0x3D
14個地址，對相應的地址進行寫， 就相當于激活了對應的命令 |
本系統是用到的Strobe： CC1100_STROBE_RESET |
||
| TX FIFO | 共64個，只寫 | |||
| RX FIFO | 共64個，只讀 | |||
#include
#include
#define INT8U unsigned char
#define INT16U unsigned int
#define WRITE_BURST 0x40 //連續寫入
#define READ_SINGLE 0x80 //讀
#define READ_BURST 0xC0 //連續讀
#define BYTES_IN_RXFIFO 0x7F //接收緩沖區的有效字節數
#define CRC_OK 0x80 //CRC校驗通過位標志
//*****************************************************************************************
sbit GDO0 =P1^3;
sbit GDO2 =P3^2;
sbit MISO =P1^6;
sbit MOSI =P1^5;
sbit SCK =P1^7;
sbit CSN =P1^2;
//*****************************************************************************************
sbit LED2 =P3^4;
sbit LED1 =P3^5;
sbit KEY1 =P3^6;
sbit KEY2 =P3^7;
//*****************************************************************************************
sbit led3=P2^3;
sbit led2=P2^2;
sbit led1=P2^1;
sbit led0=P2^0;
//*****************************************************************************************
//INT8U PaTabel[8] = {0x60 ,0x60 ,0x60 ,0x60 ,0x60 ,0x60 ,0x60 ,0x60};
INT8U PaTabel[8] = {0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0 ,0xc0};//修改發射功率
//*****************************************************************************************
void SpiInit(void);
void CpuInit(void);
void RESET_CC1100(void);
void POWER_UP_RESET_CC1100(void);
void halSpiWriteReg(INT8U addr, INT8U value);
void halSpiWriteBurstReg(INT8U addr, INT8U *buffer, INT8U count);
void halSpiStrobe(INT8U strobe);
INT8U halSpiReadReg(INT8U addr);
void halSpiReadBurstReg(INT8U addr, INT8U *buffer, INT8U count);
INT8U halSpiReadStatus(INT8U addr);
void halRfWriteRfSettings(void);
void halRfSendPacket(INT8U *txBuffer, INT8U size);
INT8U halRfReceivePacket(INT8U *rxBuffer, INT8U *length);
//*****************************************************************************************
// CC1100 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
// Strobe commands
#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.
#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
// RF_SETTINGS is a data structure which contains all relevant CCxxx0 registers
typedef struct S_RF_SETTINGS
{
INT8U FSCTRL2; //自已加的
INT8U FSCTRL1; // Frequency synthesizer control.
INT8U FSCTRL0; // Frequency synthesizer control.
INT8U FREQ2; // Frequency control word, high INT8U.
INT8U FREQ1; // Frequency control word, middle INT8U.
INT8U FREQ0; // Frequency control word, low INT8U.
INT8U MDMCFG4; // Modem configuration.
INT8U MDMCFG3; // Modem configuration.
INT8U MDMCFG2; // Modem configuration.
INT8U MDMCFG1; // Modem configuration.
INT8U MDMCFG0; // Modem configuration.
INT8U CHANNR; // Channel number.
INT8U DEVIATN; // Modem deviation setting (when FSK modulation is enabled).
INT8U FREND1; // Front end RX configuration.
INT8U FREND0; // Front end RX configuration.
INT8U MCSM0; // Main Radio Control State Machine configuration.
INT8U FOCCFG; // Frequency Offset Compensation Configuration.
INT8U BSCFG; // Bit synchronization Configuration.
INT8U AGCCTRL2; // AGC control.
INT8U AGCCTRL1; // AGC control.
INT8U AGCCTRL0; // AGC control.
INT8U FSCAL3; // Frequency synthesizer calibration.
INT8U FSCAL2; // Frequency synthesizer calibration.
INT8U FSCAL1; // Frequency synthesizer calibration.
INT8U FSCAL0; // Frequency synthesizer calibration.
INT8U FSTEST; // Frequency synthesizer calibration control
INT8U TEST2; // Various test settings.
INT8U TEST1; // Various test settings.
INT8U TEST0; // Various test settings.
INT8U IOCFG2; // GDO2 output pin configuration
INT8U IOCFG0; // GDO0 output pin configuration
INT8U PKTCTRL1; // Packet automation control.
INT8U PKTCTRL0; // Packet automation control.
INT8U ADDR; // Device address.
INT8U PKTLEN; // Packet length.
} RF_SETTINGS;
/////////////////////////////////////////////////////////////////
const RF_SETTINGS rfSettings =
{
0x00,
0x08, // FSCTRL1 Frequency synthesizer control.
0x00, // FSCTRL0 Frequency synthesizer control.
0x10, // FREQ2 Frequency control word, high byte.
0xA7, // FREQ1 Frequency control word, middle byte.
0x62, // FREQ0 Frequency control word, low byte.
0x5B, // MDMCFG4 Modem configuration.
//0xf6, // MDMCFG4 chang by allen
0xF8, // MDMCFG3 Modem configuration.
//0x83, // MDMCFG3 chang by allen data rate = 2.398K
0x03, // MDMCFG2 Modem configuration.
0x22, // MDMCFG1 Modem configuration.
0xF8, // MDMCFG0 Modem configuration.
0x00, // CHANNR Channel number.
0x47, // DEVIATN Modem deviation setting (when FSK modulation is enabled).
0xB6, // FREND1 Front end RX configuration.
0x10, // FREND0 Front end RX configuration.
0x18, // MCSM0 Main Radio Control State Machine configuration.
0x1D, // FOCCFG Frequency Offset Compensation Configuration.
0x1C, // BSCFG Bit synchronization Configuration.
0xC7, // AGCCTRL2 AGC control.
0x00, // AGCCTRL1 AGC control.
0xB2, // AGCCTRL0 AGC control.
0xEA, // FSCAL3 Frequency synthesizer calibration.
0x2A, // FSCAL2 Frequency synthesizer calibration.
0x00, // FSCAL1 Frequency synthesizer calibration.
0x11, // FSCAL0 Frequency synthesizer calibration.
0x59, // FSTEST Frequency synthesizer calibration.
0x81, // TEST2 Various test settings.
0x35, // TEST1 Various test settings.
0x09, // TEST0 Various test settings.
0x0B, // IOCFG2 GDO2 output pin configuration.
0x06, // IOCFG0D GDO0 output pin configuration. Refer to SmartRF?Studio User Manual for detailed pseudo register explanation.
0x04, // PKTCTRL1 Packet automation control.
//0x05, // PKTCTRL0 Packet automation control.
0x01, //PKTCTRL0 crc disable chang by allen at 09.12.24
0x00, // ADDR Device address.
0x0c // PKTLEN Packet length.
};
//*****************************************************************************************
//函數名：delay(unsigned int s)
//輸入：時間
//輸出：無
//功能描述：普通廷時,內部用
//*****************************************************************************************
static void delay(unsigned int s)
{
unsigned int i;
for(i=0; i sync transmitted
while (!GDO0);
// Wait for GDO0 to be cleared -> end of packet
while (GDO0);
halSpiStrobe(CCxxx0_SFTX);
delay(20);
}
void setRxMode(void)
{
halSpiStrobe(CCxxx0_SRX); //進入接收狀態
}
/*
// Bit masks corresponding to STATE[2:0] in the status byte returned on MISO
#define CCxx00_STATE_BM 0x70
#define CCxx00_FIFO_BYTES_AVAILABLE_BM 0x0F
#define CCxx00_STATE_TX_BM 0x20
#define CCxx00_STATE_TX_UNDERFLOW_BM 0x70
#define CCxx00_STATE_RX_BM 0x10
#define CCxx00_STATE_RX_OVERFLOW_BM 0x60
#define CCxx00_STATE_IDLE_BM 0x00
static INT8U RfGetRxStatus(void)
{
INT8U temp, spiRxStatus1,spiRxStatus2;
INT8U i=4;// 循環測試次數
temp = CCxxx0_SNOP|READ_SINGLE;//讀寄存器命令
CSN = 0;
while (MISO);
SpiTxRxByte(temp);
spiRxStatus1 = SpiTxRxByte(0);
do
{
SpiTxRxByte(temp);
spiRxStatus2 = SpiTxRxByte(0);
if(spiRxStatus1 == spiRxStatus2)
{
if( (spiRxStatus1 & CCxx00_STATE_BM) == CCxx00_STATE_RX_OVERFLOW_BM)
{
halSpiStrobe(CCxxx0_SFRX);
return 0;
}
return 1;
}
spiRxStatus1=spiRxStatus2;
}
while(i--);
CSN = 1;
return 0;
}
*/
INT8U halRfReceivePacket(INT8U *rxBuffer, INT8U *length)
{
INT8U status[2];
INT8U packetLength;
INT8U i=(*length)*4; // 具體多少要根據datarate和length來決定
halSpiStrobe(CCxxx0_SRX); //進入接收狀態
//delay(5);
//while (!GDO1);
//while (GDO1);
delay(2);
while (GDO0)
{
delay(2);
--i;
if(i<1)
return 0;
}
if ((halSpiReadStatus(CCxxx0_RXBYTES) & BYTES_IN_RXFIFO)) //如果接的字節數不為0
{
//LED2 = 0;
packetLength = halSpiReadReg(CCxxx0_RXFIFO);//讀出第一個字節，此字節為該幀數據長度
//if (packetLength <= *length) //如果所要的有效數據長度小于等于接收到的數據包的長度
if(packetLength == 0x08)
{
//halSpiReadBurstReg(CCxxx0_RXFIFO, rxBuffer, packetLength); //讀出所有接收到的數據
halSpiReadBurstReg(CCxxx0_RXFIFO, rxBuffer, 8); //讀出所有接收到的數據
*length = packetLength; //把接收數據長度的修改為當前數據的長度
// Read the 2 appended status bytes (status[0] = RSSI, status[1] = LQI)
//halSpiReadBurstReg(CCxxx0_RXFIFO, status, 2); //讀出CRC校驗位
halSpiStrobe(CCxxx0_SFRX); //清洗接收緩沖區
// delay(2);
// halSpiStrobe(CCxxx0_SRX); //進入接收狀態
// delay(20);
//delay(200);
return 1;
//return (status[1] & CRC_OK); //如果校驗成功返回接收成功
}
else
{
*length = packetLength;
halSpiStrobe(CCxxx0_SFRX); //清洗接收緩沖區
// delay(2);
// halSpiStrobe(CCxxx0_SRX); //進入接收狀態
// delay(20);
// LED2 = 1;
return 0;
}
}
return 0;
}
void main(void)
{
unsigned char key1_flag = 0;
bit key2_flag = 0;
unsigned int key1_scan_cnt = 400;
unsigned int key2_scan_cnt = 300;
INT8U i = 0;
INT8U leng =0;
INT8U tf =0;
INT8U TxBuf[8]={1,2,3,4,5,6,7,8}; // 8字節, 如果需要更長的數據包,請正確設置
INT8U RxBuf[8]={0};
CpuInit();
POWER_UP_RESET_CC1100();
halRfWriteRfSettings();
halSpiWriteBurstReg(CCxxx0_PATABLE, PaTabel, 8);
//halSpiStrobe(CCxxx0_SRX); //進入接收狀態
//setRxMode();
while(1)
{
//setRxMode();
delay(10);
if(KEY1 == 0)
{
key1_scan_cnt--;
if(!key1_scan_cnt)
{
key1_scan_cnt = 300;
if(key1_flag == 0)//判斷按鍵是否第1次按下
{
key1_flag = 1;//按鍵第1次按下標志位
}
}
}
else
{
key1_scan_cnt = 300;
if(key1_flag == 1)//判斷是否第一次按鍵動作松開
{
led1 = 0;
led0 = 0;
key1_flag = 2;
key1_scan_cnt = 3;
TxBuf[0] = 0x77;//第1個字節為0x77的數據幀，接收方收到后不需要返回應答
while(1)
{
halRfSendPacket(TxBuf,8); // Transmit Tx buffer data
delay(100);
if(KEY1 == 0)//檢測按鍵是否第2次按下
{
key1_scan_cnt--;
if(!key1_scan_cnt)
{
key1_flag = 3;//按鍵第2次按下
key1_scan_cnt = 300;
led1 = 1;
led0 = 1;
break;//當按鍵再次按下時退出長發狀態
}
}
else//沒有第2次的按鍵動作
{
key1_scan_cnt = 3;
}
}
}
else if(key1_flag == 3)//是否為第2次的按鍵動作松開
{
key1_flag = 0;
}
}
if(KEY2 == 0)
{
key2_scan_cnt--;
if(!key2_scan_cnt)//確認按鍵正常按下
{
key2_scan_cnt = 300;
key2_flag = 1;//按鍵第1次按下標志位
}
}
else
{
key2_scan_cnt = 300;
if(key2_flag)//按鍵彈起
{
LED1 = 0;
key2_flag = 0;
delay(1000);
TxBuf[0] = 0x88;
halRfSendPacket(TxBuf,8);// Transmit Tx buffer data
LED1 = 1;
}
}
leng =8; // 預計接受8 bytes
if(halRfReceivePacket(RxBuf,&leng))
// if(!GDO0)
{
// leng =8; // 預計接受8 bytes
// if(halRfReceivePacket(RxBuf,&leng))
{
if(RxBuf[0] == 0x77)//接收到的數據不需要返回應答
{
LED2 = ~LED2;
}
else if(RxBuf[0] == 0x88)//判斷接收到的數據是否需要返回應答
{
LED2 = 0;//接收數據正確，開接收指示燈
LED1 = 0;//準備發送應答，開發送指示燈
delay(1000);
TxBuf[0] = 0x99;
halRfSendPacket(TxBuf,8); // Transmit Tx buffer data 返回應答
LED2 = 1;
LED1 = 1;
}
else if(RxBuf[0] == 0x99)//應答數據
{
LED2 = 0;
delay(1000);
LED2 = 1;
}
}
}
}
}