使用MSP430單片機實現CC1101的發送

ID:188339 · 發表于 2017-4-11 08:42

使用430實現CC1101的發送

完整代碼下載：

CC1101_TX.rar (34.95 KB, 下載次數: 37)

單片機源程序：

#include "msp430g2452.h"
#include "common.h"
#include "regssrf04.h"
#include "initial_spi.h"
#include "Uart9600.h"
#define CRC_OK 0x80
#define RSSI 0
#define LQI 1
#define BYTES_IN_RXFIFO 0x7F
#define sys_in P2OUT|=BIT3;
#define com_on P2OUT|=BIT4;
#define com_off P2OUT&=~BIT4;
#define sys_0ff P2OUT&=~BIT3;
BYTE rxBuffer[61];
BYTE txBuffer[10]={0x80,0x00,0x00,0x00,0x00,0x90,0x00,0x50,0x50,0x50};
void halRfWriteRfSettings(/*const RF_SETTINGS *pRfSettings*/);
void halRfSendPacket(BYTE *txBuffer, UINT8 size) ;
void interrupt_initial();
void delay_tx();
unsigned char tx_ready=0;
unsigned char length;
unsigned char count=0;
void systime_initial(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
DCOCTL =CALDCO_1MHZ;
BCSCTL1 = CALBC1_1MHZ;
__enable_interrupt();
}
void IO_initial(void)
{
//********************************************************
//SPI端口初始化
//********************************************************
SI_OUTPUT ;
SO_INPUT ;
CSN_OUTPUT;
SCLK_OUTPUT;
P2DIR|=BIT3+BIT4; //系統，通信指示燈
//**************************************************************
//串口初始化，模擬的
//******************************************************************
P1SEL = UART_TXD + UART_RXD; // 串口，Timer function for TXD/RXD pins
P1DIR|=UART_TXD;
//******************************************************************
}
//******************************************************************
//***中斷初始化
//*****************************************************************
void halRfWriteRfSettings()
{
// Write register settings
SPI_WriteReg(CCxxx0_FSCTRL1, 0x06);// FSCTRL1 Frequency synthesizer control.
SPI_WriteReg(CCxxx0_FSCTRL0, 0x00);// FSCTRL0 Frequency synthesizer control.
SPI_WriteReg(CCxxx0_FREQ2, 0x10);// FREQ2 Frequency control word, high byte.
SPI_WriteReg(CCxxx0_FREQ1, 0xB1);// FREQ1 Frequency control word, middle byte.
SPI_WriteReg(CCxxx0_FREQ0, 0x3B);// FREQ0 Frequency control word, low byte.
SPI_WriteReg(CCxxx0_MDMCFG4, 0xF6);// MDMCFG4 Modem configuration.
SPI_WriteReg(CCxxx0_MDMCFG3, 0x83);// MDMCFG3 Modem configuration.
SPI_WriteReg(CCxxx0_MDMCFG2, 0x13);// MDMCFG2 Modem configuration.
SPI_WriteReg(CCxxx0_MDMCFG1, 0x22);// MDMCFG1 Modem configuration.
SPI_WriteReg(CCxxx0_MDMCFG0, 0xF8);// MDMCFG0 Modem configuration.
SPI_WriteReg(CCxxx0_CHANNR, 0x00);// CHANNR Channel number.
SPI_WriteReg(CCxxx0_DEVIATN, 0x15);// DEVIATN Modem deviation setting (when FSK modulation is enabled).
SPI_WriteReg(CCxxx0_FREND1, 0x56);// FREND1 Front end RX configuration.
SPI_WriteReg(CCxxx0_FREND0, 0x10);// FREND0 Front end TX configuration.
SPI_WriteReg(CCxxx0_MCSM0 , 0x18);// MCSM0 Main Radio Control State Machine configuration.
SPI_WriteReg(CCxxx0_FOCCFG, 0x16);// FOCCFG Frequency Offset Compensation Configuration.
SPI_WriteReg(CCxxx0_BSCFG, 0x6C);// BSCFG Bit synchronization Configuration.
SPI_WriteReg(CCxxx0_AGCCTRL2, 0x03);// AGCCTRL2 AGC control.
SPI_WriteReg(CCxxx0_AGCCTRL1, 0x40);// AGCCTRL1 AGC control.
SPI_WriteReg(CCxxx0_AGCCTRL0, 0x91);// AGCCTRL0 AGC control.
SPI_WriteReg(CCxxx0_FSCAL3, 0xE9);// FSCAL3 Frequency synthesizer calibration.
SPI_WriteReg(CCxxx0_FSCAL2, 0x2A);// FSCAL2 Frequency synthesizer calibration.
SPI_WriteReg(CCxxx0_FSCAL1, 0x00);// FSCAL1 Frequency synthesizer calibration.
SPI_WriteReg(CCxxx0_FSCAL0, 0x1F);// FSCAL0 Frequency synthesizer calibration.
SPI_WriteReg(CCxxx0_FSTEST, 0x59);// FSTEST Frequency synthesizer calibration.
SPI_WriteReg(CCxxx0_TEST2, 0x81);// TEST2 Various test settings.
SPI_WriteReg(CCxxx0_TEST1, 0x35);// TEST1 Various test settings.
SPI_WriteReg(CCxxx0_TEST0, 0x09);// TEST0 Various test settings.
SPI_WriteReg(CCxxx0_FIFOTHR, 0x47);// FIFOTHR RXFIFO and TXFIFO thresholds.
SPI_WriteReg(CCxxx0_IOCFG2, 0x2e);// IOCFG2 GDO2 output pin configuration.
SPI_WriteReg(CCxxx0_IOCFG0, 0x06);// IOCFG0D GDO0 output pin configuration.
SPI_WriteReg(CCxxx0_PKTCTRL1, 0x04);// PKTCTRL1 Packet automation control.
SPI_WriteReg(CCxxx0_PKTCTRL0, 0x05);// PKTCTRL0 Packet automation control.
SPI_WriteReg(CCxxx0_ADDR, 0x00);// ADDR Device address.
SPI_WriteReg(CCxxx0_PKTLEN, 0xFF);// PKTLEN Packet length.
}
void interrupt_initial()
{
WDTCTL = WDT_MDLY_32; // Set Watchdog Timer interval to ~30ms
IE1 |= WDTIE; // Enable WDT interrupt
}
#pragma vector=WDT_VECTOR
__interrupt void watchdog_timer(void)
{
count=count+1;
if(count>250)
{
count=0;
SPI_Strobe(CCxxx0_SIDLE );
halRfSendPacket(txBuffer, 10);
// com_on;
__delay_cycles(10000);
__delay_cycles(10000);
SPI_Strobe(CCxxx0_SPWD);
_bis_SR_register(LPM4_bits);
}
}
BYTE halRfReceivePacket(BYTE *rxBuffer, UINT8 *length)
{
BYTE status[2];
unsigned char packetLength;
unsigned char DATE;
SPI_Strobe(CCxxx0_SRX);
// Wait for GDO0 to be set -> sync received
while (!GDO0_PIN);
// Wait for GDO0 to be cleared -> end of packet
while (GDO0_PIN);
DATE=SPI_ReadStatus(CCxxx0_RXBYTES);
// This status register is safe to read since it will not be updated after
// the packet has been received (See the CC1100 and 2500 Errata Note)
if (( DATE& BYTES_IN_RXFIFO))
{
// Read length byte
packetLength = SPI_ReadReg(CCxxx0_RXFIFO);
// Read data from RX FIFO and store in rxBuffer
if (packetLength <= *length)
{
SPI_ReadBurstReg(CCxxx0_RXFIFO, rxBuffer, packetLength);
*length = packetLength;
// Read the 2 appended status bytes (status[0] = RSSI, status[1] = LQI)
SPI_ReadBurstReg(CCxxx0_RXFIFO, status, 2);
// MSB of LQI is the CRC_OK bit
return (status[LQI] & CRC_OK);
}
else
{
*length = packetLength;
// Make sure that the radio is in IDLE state before flushing the FIFO
// (Unless RXOFF_MODE has been changed, the radio should be in IDLE state at this point)
SPI_Strobe(CCxxx0_SIDLE);
// Flush RX FIFO
SPI_Strobe(CCxxx0_SFRX);
return FALSE;
}
}
else
{
return FALSE;
}
}// halRfReceivePacket
void halRfSendPacket(BYTE *txBuffer, UINT8 size)
{
SPI_WriteReg(CCxxx0_TXFIFO ,size);
SPI_WriteBurstReg(CCxxx0_TXFIFO, txBuffer, size);
SPI_Strobe(CCxxx0_STX);
// Wait for GDO0 to be set -> sync received
while (!GDO0_PIN);
// Wait for GDO0 to be cleared -> end of packet
while (GDO0_PIN);
SPI_Strobe(CCxxx0_SFTX);
}
void main(void)
{
//unsigned char m;
systime_initial();
IO_initial();
interrupt_initial();
TimerA_UART_init();
SPI_Strobe(CCxxx0_SRES);
halRfWriteRfSettings(/*&rfSettings*/ );
__delay_cycles(10000);
sys_0ff; //系統啟動指示燈亮
while(1)
{
com_off;
}
}

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使用MSP430單片機實現CC1101的發送