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authorCristian Maglie <c.maglie@bug.st>2012-01-04 15:14:51 +0100
committerCristian Maglie <c.maglie@bug.st>2012-01-04 15:14:51 +0100
commit8c2b5b979a75d109ae7cc306afc50d7ffe1e0366 (patch)
tree19ac8d91c7209397e7dc890b432a254ae9a7cd62 /libraries/SD/examples/Files/Files.ino
parentbe52c95820400d48e47615232d3c38236166fad3 (diff)
Moved libraries folder inside platform folder. Now libraries and examples are searched per board/platform
Diffstat (limited to 'libraries/SD/examples/Files/Files.ino')
-rw-r--r--libraries/SD/examples/Files/Files.ino78
1 files changed, 78 insertions, 0 deletions
diff --git a/libraries/SD/examples/Files/Files.ino b/libraries/SD/examples/Files/Files.ino
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+++ 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
+ 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.
+}
+
+
+