nRF24L01p Wifi Module And Arduino DUE

Hello Guys,

I was using Arduino Uno. I tried this code and it was working.But When I changed the Arduino Due, It did not work.

I guess it is about Arduinu DUE’s spi clock speed. But I have no idea how I can fix it. Can someone help me ?

#include <SPI.h>
#include <nRF24L01p.h>
nRF24L01p Radio(7, 8);

void setup() {
  Serial.begin(115200);
  SPI.begin();
  SPI.setBitOrder(MSBFIRST);
  delay(10);
  Radio.channel(90);
  Radio.TXaddress("kk");
  Radio.RXaddress("kk");
  Radio.init();
}

char sendValue;
String sendingValue, comingValue ;

void loop() {
  sendingValue = "";
  if (Serial.available()) {
    while (Serial.available())
    {
      sendValue = Serial.read();
      sendingValue += sendValue;
    }
    Serial.println(sendingValue);
    Radio.txPL(sendingValue);
    Radio.send(FAST);
  }

  if (Radio.available())
  {
    Radio.read();
    Radio.rxPL(comingValue);
    Serial.println(comingValue);
    comingValue = "";
  }
  delay(50);
}