2.4”TFT LCD的SD Card讀取問題

and1234577

想請問一下，我把2.4”TFT LCD 插在Arduino MEGA 2560G上，寫入測試程式，但測不到SD Card。可是同樣的方法在uno上就可以，求解?
以下是程式碼
#include <SPI.h>
#include <SD.h>

Sd2Card card;
SdVolume volume;
SdFile root;

const int chipSelect = 10;

void setup() {
  Serial.begin(9600);
  while (!Serial) {
  }


  Serial.print("\nInitializing SD card...");

  if (!card.init(SPI_HALF_SPEED, chipSelect)) {
    Serial.println("initialization failed. Things to check:");
    Serial.println("* is a card inserted?");
    Serial.println("* is your wiring correct?");
    Serial.println("* did you change the chipSelect pin to match your shield or module?");
    return;
  } else {
    Serial.println("Wiring is correct and a card is present.");
  }

到這裡就return了

超新手

SD Card 是怎麼接的?
Arduino Mega 要接到 50, 51, and 52  
其他機種(如UNO)則接 11, 12, and 13

and1234577

謝謝拉~我問完後有試成功囉~