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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/DumpFile/DumpFile.ino
parentbe52c95820400d48e47615232d3c38236166fad3 (diff)
Moved libraries folder inside platform folder. Now libraries and examples are searched per board/platform
Diffstat (limited to 'libraries/SD/examples/DumpFile/DumpFile.ino')
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diff --git a/libraries/SD/examples/DumpFile/DumpFile.ino b/libraries/SD/examples/DumpFile/DumpFile.ino
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+/*
+ SD card file dump
+
+ This example shows how to read a file from the SD card using the
+ SD library and send it over the serial port.
+
+ The circuit:
+ * SD card attached to SPI bus as follows:
+ ** MOSI - pin 11
+ ** MISO - pin 12
+ ** CLK - pin 13
+ ** CS - pin 4
+
+ created 22 December 2010
+
+ This example code is in the public domain.
+
+ */
+
+#include <SD.h>
+
+// On the Ethernet Shield, CS is pin 4. Note that even if it's not
+// used as the CS pin, the hardware CS pin (10 on most Arduino boards,
+// 53 on the Mega) must be left as an output or the SD library
+// functions will not work.
+const int chipSelect = 4;
+
+void setup()
+{
+ Serial.begin(9600);
+ Serial.print("Initializing SD card...");
+ // make sure that the default chip select pin is set to
+ // output, even if you don't use it:
+ pinMode(10, OUTPUT);
+
+ // see if the card is present and can be initialized:
+ if (!SD.begin(chipSelect)) {
+ Serial.println("Card failed, or not present");
+ // don't do anything more:
+ return;
+ }
+ Serial.println("card initialized.");
+
+ // open the file. note that only one file can be open at a time,
+ // so you have to close this one before opening another.
+ File dataFile = SD.open("datalog.txt");
+
+ // if the file is available, write to it:
+ if (dataFile) {
+ while (dataFile.available()) {
+ Serial.write(dataFile.read());
+ }
+ dataFile.close();
+ }
+ // if the file isn't open, pop up an error:
+ else {
+ Serial.println("error opening datalog.txt");
+ }
+}
+
+void loop()
+{
+}
+