arduino-0022

arduino-0022-linux-x64/libraries/SD/examples/Files/Files.pde

@@ -0,0 +1,78 @@
+/*
+  SD card basic file example
+ 
+ This example shows how to create and destroy an SD card file 	
+ The circuit:
+ * SD card attached to SPI bus as follows:
+ ** MOSI - pin 11
+ ** MISO - pin 12
+ ** CLK - pin 13
+ ** CS - pin 4
+ 
+ created   Nov 2010
+ by David A. Mellis
+ updated 2 Dec 2010
+ by Tom Igoe
+ 
+ This example code is in the public domain.
+ 	 
+ */
+#include <SD.h>
+
+File myFile;
+
+void setup()
+{
+  Serial.begin(9600);
+  Serial.print("Initializing SD card...");
+  // On the Ethernet Shield, CS is pin 4. It's set as an output by default.
+  // Note that even if it's not used as the CS pin, the hardware SS pin 
+  // (10 on most Arduino boards, 53 on the Mega) must be left as an output 
+  // or the SD library functions will not work. 
+  pinMode(10, OUTPUT);
+
+  if (!SD.begin(4)) {
+    Serial.println("initialization failed!");
+    return;
+  }
+  Serial.println("initialization done.");
+
+  if (SD.exists("example.txt")) {
+    Serial.println("example.txt exists.");
+  }
+  else {
+    Serial.println("example.txt doesn't exist.");
+  }
+
+  // open a new file and immediately close it:
+  Serial.println("Creating example.txt...");
+  myFile = SD.open("example.txt", FILE_WRITE);
+  myFile.close();
+
+  // Check to see if the file exists: 
+  if (SD.exists("example.txt")) {
+    Serial.println("example.txt exists.");
+  }
+  else {
+    Serial.println("example.txt doesn't exist.");  
+  }
+
+  // delete the file:
+  Serial.println("Removing example.txt...");
+  SD.remove("example.txt");
+
+  if (SD.exists("example.txt")){ 
+    Serial.println("example.txt exists.");
+  }
+  else {
+    Serial.println("example.txt doesn't exist.");  
+  }
+}
+
+void loop()
+{
+  // nothing happens after setup finishes.
+}
+
+
+