Issue in ArduinoBLE library with a new board

Using Arduino Programming Questions
1

Hello everyone,
I am using the new development board called ARIES IoT. This board is built upon a RISC-V ISA compliant VEGA Processor. I did the necessary changes in BLELocalDevice::begin() function to initialise all the pins. I am trying peripheral/LED example to control a built-in LED with nRF Connect app.
It is working when I put some print messages before HCITransport.write() function call in HCIClass::sendCommand() function. I tried to replace the print statements with delay but it is not working that way.

HCIClass::sendCommand() Function:

int HCIClass::sendCommand(uint16_t opcode, uint8_t plen, void* parameters)
{
  struct __attribute__ ((packed)) {
    uint8_t pktType;
    uint16_t opcode;
    uint8_t plen;
  } pktHdr = {HCI_COMMAND_PKT, opcode, plen};

  uint8_t txBuffer[sizeof(pktHdr) + plen];
  memcpy(txBuffer, &pktHdr, sizeof(pktHdr));
  memcpy(&txBuffer[sizeof(pktHdr)], parameters, plen);

  if (_debug) {
    dumpPkt("HCI COMMAND TX -> ", sizeof(pktHdr) + plen, txBuffer);
  }
#ifdef _BLE_TRACE_
  Serial.print("Command tx -> ");
  for(int i=0; i< sizeof(pktHdr) + plen;i++){
    Serial.print(" 0x");
    Serial.print(txBuffer[i],HEX);
    
  }
  Serial.println("");
#endif
  Serial.println(__LINE__);
  Serial.println(__LINE__);
  Serial.println(__LINE__);
  Serial.println(__LINE__);
  // delayMicroseconds(1389);
  // Serial.println();
  delay(1);

  HCITransport.write(txBuffer, sizeof(pktHdr) + plen);

  _cmdCompleteOpcode = 0xffff;
  _cmdCompleteStatus = -1;

  for (unsigned long start = millis(); _cmdCompleteOpcode != opcode && millis() < (start + 1000);) {
    poll();
  }

  return _cmdCompleteStatus;
}

I am using the latest ArduinoBLE library.

I added following lines in begin():

  pinMode(SPIWIFI_SS, OUTPUT);
  pinMode(NINA_RESETN, OUTPUT);
  
  digitalWrite(SPIWIFI_SS, LOW);

  digitalWrite(NINA_RESETN, LOW);
  delay(100);
  digitalWrite(NINA_RESETN, HIGH);
  delay(750);

// set SS HIGH
  digitalWrite(SPIWIFI_SS, HIGH);

  // set RTS HIGH
  pinMode(NINA_RTS, OUTPUT);
  digitalWrite(NINA_RTS, HIGH);

  // set CTS as input
  pinMode(NINA_CTS, INPUT);

Baudrate is 115200

2

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