CC2541 receiver

Hello,

I use the CC2541 to make a transmitter and a receiver.

I use the kit with the CC-Debugger.

When i send (RFST CMD_TX) my data the PRF_ENDCAUSE is TASK_ENDOK so is suppose my package is sended correctly.

When i want to receive this package with the other CC2541 (RFST CMD_RX) the PRF_ENDCAUSE is TASKERR_PAR. I don't realy find the reason.

This are the settings i programmed to make the receiver.

Does anybody see something wrong ?

Thanks in advance,

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int send_data_length;

//Transmitter only
int data_to_send[8] = {0x40,0x45,0x55,0x60,0x65,0x70,0x75,0x80};
int received_data[16];
int i;


void halSetFrequency(uint16 frequency)
{
    PRF.CHAN.FREQ = frequency-2379;
}


void halRfLoadBLEBroadcastPacketPayload(void)
{
  //Number of bytes effective data
  send_data_length = (sizeof(data_to_send)/sizeof(int));

  //Read data from FIFO
  for(i=0;i<send_data_length+8;i++){
  received_data[i] = RFD;
  }

  return;  
}

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void halRfInitBleBroadcastMode(unsigned short broadcast_channel)
{
  // Clear radio memory (The RAM registers don't have a default value set, must be set manually).
  memset((void*)RFCORE_RAM_PAGE, 0, RFCORE_RAM_PAGE_SZ);
 
  // No timer 2 events sent to LLE
  T2EVTCFG = 0x77;        
 
  PRF.TASK_CONF.MODE              = 0;    // Basic mode, fixed length.
  PRF.TASK_CONF.REPEAT            = 0;    // no repeat  
  PRF.TASK_CONF.START_CONF        = 0;    // Start each receive/transmit immediately
  PRF.TASK_CONF.STOP_CONF         = 0;    // Don't stop on timer 2 event 2.
  PRF.FIFO_CONF.AUTOFLUSH_IGN     = 0;    // Flush duplicate packets
  PRF.FIFO_CONF.AUTOFLUSH_CRC     = 0;    // Flush packets with CRC error
  PRF.FIFO_CONF.AUTOFLUSH_EMPTY   = 0;    // Flush packets with no payload
  PRF.FIFO_CONF.RX_STATUS_CONF    = 0;    // Don't append status information in FIFO
  PRF.FIFO_CONF.RX_ADDR_CONF      = 1;    // Address byte in Rx FIFO
  PRF.FIFO_CONF.TX_ADDR_CONF      = 0;    // Read address from PRF.ADDR_ENTRY[0].ADDRESS
  PRF.PKT_CONF.ADDR_LEN           = 1;    // Address byte.
  PRF.PKT_CONF.AGC_EN             = 0;    // AGC disabled.
  PRF.PKT_CONF.START_TONE         = 0;    // No tone in front of packet.
  PRF.ADDR_ENTRY[0].CONF.REUSE    = 0;    // Don't reuse packet.
 
  TXCTRL    = 0x19;
  TXPOWER   = TXPOWER_0_DBM;      // Set default output power: 0dBm.
  TXFILTCFG = 0x03;               // Set Tx filter bandwidth
  IVCTRL    = 0x1B;
  FRMCTRL0  = 0x40;               // Data goes LSB over the air.
  ADCTEST0  = 0x10;               // Adjust ADC gain.
  MDMCTRL0  = 0x04;               // Set 1 Mbps at 250 kHz deviation.
  MDMCTRL1  = 0x48;               // Correlation threshold
  MDMCTRL2  = 0x00;               // Syncword transmitted LSB to MSB, 1 leading preamble byte,     
  MDMCTRL3  = 0x63;               // Set RSSI mode to peak detect after sync.
  MDMTEST0  = 0x01;
 
   //Address configuration
  PRF.FIFO_CONF.TX_ADDR_CONF = 0;       //Read address from PRF.ADDR_ENTRY[0]
  PRF.ADDR_ENTRY[0].ADDRESS = 0x44;     //Address
  PRF.ADDR_ENTRY[0].CONF.ENA0 = 1;      //Enable address primary sync word
 
  //  Set 32 bit sync word:
  SW_CONF = 0x00;
  SW0 = 0xD6;
  SW1 = 0xBE;
  SW2 = 0x89;
  SW3 = 0x8E;
 
  // Set 3 byte CRC
  PRF_CRC_LEN = 0x03;
  PRF_CRC_INIT[0] = 0x00;
  PRF_CRC_INIT[1] = 0x55;
  PRF_CRC_INIT[2] = 0x55;
  PRF_CRC_INIT[3] = 0x55;
 
  // Set BLE broadcast channel (2402, 2426 or 2480)
  halSetFrequency(broadcast_channel);                    

  // Enable PN7 whitener.
  BSP_P0 = 0x00;
  BSP_P1 = 0x5B;
  BSP_P2 = 0x06;
  BSP_P3 = 0x00;
  BSP_MODE = 0x01;
 
  // Initialization of PN7 whitener in accordance with advertising channel. PRF_W_INIT should be set to 37, 38, or 39 (0x25, 0x26, or 0x27).
  if(broadcast_channel == BLE_BROADCAST_CHANNEL_37)
  {
    PRF_W_INIT = 0x25;  // Init according to BLE channel 37.
  }
  else if(broadcast_channel == BLE_BROADCAST_CHANNEL_37)
  {
    PRF_W_INIT = 0x26;  // Init according to BLE channel 37.
  }
  else if(broadcast_channel == BLE_BROADCAST_CHANNEL_37)
  {
    PRF_W_INIT = 0x27;  // Init according to BLE channel 37.
  }
}

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unsigned char BleBroadcast(void)
{  
  // Clear and update LCD display.     
  halLcdClear();
  halLcdWriteLine(1, "BLE BroadCast");

  // Reset LLE.
  LLECTRL = 0x00;
 
  // Config radio in BLE broadcast mode.
  halRfInitBleBroadcastMode(BLE_BROADCAST_CHANNEL_37);
 
  // Enable the radio.
  LLECTRL = 0x01;

  while(1)  
  {
    // Start receive
    while(RFST != 0);
    RFST = 0x08;
      
    // Wait for TASKDONE    
    while ((RFIRQF1 & RFIRQF1_TASKDONE) != RFIRQF1_TASKDONE);
 
    // If data received read FIFO   
    if(PRF.ENDCAUSE == TASK_ENDOK)    
    {        
      //Get packet data.
      halRfLoadBLEBroadcastPacketPayload();
      
    }

}