CCS/CC2640: HCI_LE_Transmitter_Test doesn' work in our custom board with CC2640, but it works well on CC2650 Launchpad

Tool/software: Code Composer Studio

Hi TI experts,

I am testing now to support CW changing and to generate a specific test pattern(HCI_DIRECT_TEST_PAYLOAD_0x55).

so, I already added the related commands onto the simple_peripheral_application as below, and confirmed the operation on CC2650 Launchpad:

But, our custom board doesn't work. Of course, this board works well without the below code, that is, it advertises well as a general peripheral application.

At this time, no external serial communication with PC terminal.

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  ICall_registerApp(&selfEntity, &sem);

  HCI_ResetCmd();

  // simply changing DEFAULT_TX_POWER could be used in the file "bleUserConfig. default is HCI_EXT_TX_POWER_0_DBM(7).
  // Single-ended output only has tx power values up to 2 dBm.
  HCI_EXT_SetTxPowerCmd(HCI_EXT_TX_POWER_4_DBM);    // 4dBm=2.5mW, 0dBm=1mw

  #if 1
  uint16 CW = CSReadUserKey();
  if ( (CW >= 37) && (CW <= 39) )
  {
    // enable PTM
    HCI_EXT_EnablePTMCmd();
    ASM_NOP;     ASM_NOP;    ASM_NOP;    ASM_NOP;

    HCI_LE_TransmitterTestCmd(CW, 32, HCI_DIRECT_TEST_PAYLOAD_0x55);
    
    ASM_NOP;     ASM_NOP;    ASM_NOP;    ASM_NOP;

    //HCI_LE_TestEndCmd();
  }
  #endif

Thanks in advance for your comments.

Ji-won Lee