Arduino Mega的SD卡错误

Question

我正在尝试使用带有Arduino Mega2560的Spark fun的SD卡模块运行一个简单的程序。这是我目前正在使用的程序：

#include <SD.h>

const int chipSelect = 10;

void setup()
{
  Serial.begin(9600);
  Serial.print("Initializing SD card...");
  pinMode(53, OUTPUT);
  digitalWrite(10, HIGH);
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:
    return;
  }
  Serial.println("card initialized.");
}

void loop()
{
  String dataString = "";

  for (int analogPin = 0; analogPin < 3; analogPin++) {
    int sensor = analogRead(analogPin);
    dataString += String(sensor);
    if (analogPin < 2) {
      dataString += ","; 
    }
  }

  File dataFile = SD.open("datalog.txt", FILE_WRITE);

  if (dataFile) {
    dataFile.println(dataString);
    dataFile.close();
    Serial.println(dataString);
  }  

  else {
    Serial.println("error opening datalog.txt");
  } 
}

我收到的错误说： 初始化SD卡...卡失败或不存在 打开datalog.txt错误

Answer 1

更改

pinMode(53, OUTPUT);
digitalWrite(10, HIGH);

要

pinMode(53, OUTPUT);
digitalWrite(53, HIGH);

试一试。