main.c

program show the communication of CC100-MSP430

#include "ITS_types.h"
#include "ITS_defs.h"
#include "ITS_board.h"
#include "ITS_spi.h"
#include "ITS_int.h"
#include "ITS_mcu.h"
#include "ITS_uart.h"
#include "ITS_rf.h"
#include "cc1100.h"
#include <stdlib.h>
#include <string.h>

#include "my_rf_settings.h"

#define UART_RX_Buffer_Size   40
unsigned char UART_RX_Buffer[UART_RX_Buffer_Size];
unsigned int UART_RX_Bytes;  
unsigned int UART_Status;

//----------------------------------------------------------------------------------
//  Constants used in this file
//----------------------------------------------------------------------------------
#define RADIO_MODE_TX        1
#define RADIO_MODE_RX        2

#define RX_OK                0
#define RX_LENGTH_VIOLATION  1
#define RX_CRC_MISMATCH      2
#define RX_FIFO_OVERFLOW     3

#define FIFO_THRESHOLD        0x07
#define FIFO_THRESHOLD_BYTES  32
#define FIFO_SIZE             64


//----------------------------------------------------------------------------------
//  Variables used in this file
//----------------------------------------------------------------------------------
static volatile uint8 radioMode;
static volatile uint8 radioModeSet = FALSE;
static volatile uint8 buttonPushed = FALSE;
static volatile uint8 packetSent;
static volatile uint8 packetReceived;

uint8 rdata[64];
uint8 tdata[64];

//----------------------------------------------------------------------------------
//  Function declarations
//----------------------------------------------------------------------------------
static uint8 txSendPacket(uint8* data, uint8 length);
static uint8 rxRecvPacket(uint8* data, uint8* length);
void rxInit(void);
static void  txISR(void);
static void  rxISR(void);
static void  myTxButtonISR(void);
static void  myRxButtonISR(void);

//----------------------------------------------------------------------------------
//  void txISR(void)
//
//  DESCRIPTION:
//    This function is called (in interrupt context) every time a packet has been
//    transmitted.
//----------------------------------------------------------------------------------
static void txISR(void)
{
    packetSent = TRUE;
}

//----------------------------------------------------------------------------------
//  void rxISR(void)
//
//  DESCRIPTION:
//    This function is called (in interrupt context) every time a packet has been
//    revceived.
//----------------------------------------------------------------------------------
static void rxISR(void)
{
    packetReceived = TRUE;
}

//----------------------------------------------------------------------------------
//  void myRxButtonISR(void)
//
//  DESCRIPTION:
//    This function is called when the S1 button is pressed.
//    Selects mode of operation the first time it runs.
//----------------------------------------------------------------------------------
static void myRxButtonISR(void)
{
    if (!radioModeSet)
    {
        radioMode = RADIO_MODE_RX;
        radioModeSet = TRUE;
    //    ITSLcdWriteSymbol(HAL_LCD_SYMBOL_ANT, TRUE);
    //    ITSLcdWriteSymbol(HAL_LCD_SYMBOL_RX, TRUE);
    }
    buttonPushed = TRUE;
    
}

//----------------------------------------------------------------------------------
//  void myTxButtonISR(void)
//
//  DESCRIPTION:
//    This function is called when the S2 button is pressed.
//    Selects mode of operation the first time it runs.
//----------------------------------------------------------------------------------
static void myTxButtonISR(void)
{
    if (!radioModeSet)
    {
        radioMode = RADIO_MODE_TX;
        radioModeSet = TRUE;
  //      ITSLcdWriteSymbol(HAL_LCD_SYMBOL_ANT, TRUE);
  //      ITSLcdWriteSymbol(HAL_LCD_SYMBOL_TX, TRUE);
    }
    buttonPushed = TRUE;
  //  P2IFG &= 0xF7; 
}

//----------------------------------------------------------------------------------
//  void preparePacket(uint8 id, uint8* data, uint8* length)
//
//  DESCRIPTION:
//    Set up a dummy packet, where the first byte contains the length of the payload
//    and the first byte of the payload contains a packet id.
//----------------------------------------------------------------------------------
static void preparePacket(uint8 id, uint8* data, uint8* length)
{
    uint8 i,j;
    uint8 payloadLength=3;

 //   payloadLength++;
 //   if (payloadLength > 61)
 //       payloadLength = 1;

    // First byte of packet contains the length of the payload
    data[0] = payloadLength;

    // First byte of payload contains an id
  //   data[1] = 'V';
  //   data[2] = '5';
/*    data[3] = 30;
    data[4] = 40;
    data[5] = 50;
    data[6] = 60;
    data[7] = 70;*/


     for(i=0;i<3;i++)
     {
        data[i+1]=UART_RX_Buffer[i];
        payloadLength++;
     }
     data[0] = payloadLength;

    // Fill rest of packet with dummy data*/
    for (j = 4; j <= 64; j++)
        data[j] = 0;

    // Packet length is payload + length byte
    *length = payloadLength + 1;
}


char id,ver;
unsigned char temp[30];


int j;
int main( void )
{
  
    // Stop watchdog timer to prevent time out reset
    ITSBoardInit();    
 
    ITSRfResetChip();
    
    id  = ITSRfGetChipId();
    ver = ITSRfGetChipVer();
    
    ITSRfStrobe(CC1100_SPWD);

    ITSUartWrite("WEL COME.....\n\r");

     // Set up interrupts for events on the S1 and S2 buttons
 /*   ITSDigioIntSetEdge(&pinS1, HAL_DIGIO_INT_RISING_EDGE);
    ITSDigioIntConnect(&pinS1, &myRxButtonISR);
    ITSDigioIntEnable(&pinS1);*/
    
    /*    ITSDigioIntSetEdge(&pinS2, HAL_DIGIO_INT_RISING_EDGE);
    ITSDigioIntConnect(&pinS2, &myTxButtonISR);
    ITSDigioIntEnable(&pinS2);*/
    
    
    
     
    // Setup chip with register settings from SmartRF Studio
    ITSRfConfigCC1100(&myRfConfig, myPaTable, myPaTableLen);

    // Additional chip configuration for this example
    ITSRfWriteReg(CC1100_MCSM0,    0x18);   // Calibration from IDLE to TX/RX
    ITSRfWriteReg(CC1100_MCSM1,    0x00);   // No CCA, IDLE after TX and RX
    ITSRfWriteReg(CC1100_PKTCTRL0, 0x45);   // Enable data whitening and CRC
    ITSRfWriteReg(CC1100_PKTCTRL1, 0x0C);// Enable append mode
    ITSRfWriteReg(CC1100_IOCFG0,   0x06);   // Set GDO0 to be packet received signal


    // In this example, the packets being sent are smaller than the size of the
    // FIFO, thus all larger packets should be discarded. The packet length
    // filtering on the receiver side is necessary in order to handle the
    // CC1100 RX FIFO overflow errata, described in the CC1100 Errata Note.
    // Given a FIFO size of 64, the maximum packet is set such that the FIFO
    // has room for the length byte + payload + 2 appended status bytes (giving
    // a maximum payload size of 64 - 1 - 2 = 61.
    ITSRfWriteReg(CC1100_PKTLEN,     61);   // Max payload data length
    
     uint16 counter;
    uint8 payloadLength;
    uint8 packetLength;
    counter = 0;
    while(1)
    {
          while (!buttonPushed)
          {
          //    ITSRfStrobe(CC1100_SRX);
               ITSDigioIntSetEdge(&pinGDO0, HAL_DIGIO_INT_FALLING_EDGE);
               ITSDigioIntConnect(&pinGDO0, &rxISR);
               ITSDigioIntEnable(&pinGDO0);
                
               if (rxRecvPacket(rdata, &payloadLength) == 0)
               {
                  ITSMcuWaitUs(20);
            //      ITSUartWrite("Data receive");
                  ITSUartWrite((char *)rdata);
              //    memset(rdata,'\0',64);
                //  ITSDigioIntDisable(&pinGDO0);
                  
                  ITSUartWrite("\n\r");
                  for(j=0;j<64;j++)
                  {
                      rdata[j]='\0';
                  }
                  ITSRfResetChip();
                  ITSRfWriteReg(CC1100_SYNC0 ,   0X55);     // Packet length.
                  ITSRfWriteReg(CC1100_SYNC1 ,   0X22);     // Packet length.
                //  U1ME &= ~UTXE1;
                  
           //        ITSDigioIntConnect(&pinGDO0, &txISR);