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-rw-r--r--libraries/SD/examples/Files/Files.ino84
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diff --git a/libraries/SD/examples/Files/Files.ino b/libraries/SD/examples/Files/Files.ino
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-/*
- 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
- modified 9 Apr 2012
- by Tom Igoe
-
- This example code is in the public domain.
-
- */
-#include <SD.h>
-
-File myFile;
-
-void setup()
-{
- // Open serial communications and wait for port to open:
- Serial.begin(9600);
- while (!Serial) {
- ; // wait for serial port to connect. Needed for Leonardo only
- }
-
-
- 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.
-}
-
-
-