mirror of
https://github.com/esp8266/Arduino.git
synced 2025-07-30 16:24:09 +03:00
Moving all AVR specific libraries to hardware/avr
This commit is contained in:
77
hardware/avr/libraries/SD/examples/listfiles/listfiles.pde
Normal file
77
hardware/avr/libraries/SD/examples/listfiles/listfiles.pde
Normal file
@ -0,0 +1,77 @@
|
||||
/*
|
||||
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 root;
|
||||
|
||||
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(10)) {
|
||||
Serial.println("initialization failed!");
|
||||
return;
|
||||
}
|
||||
Serial.println("initialization done.");
|
||||
|
||||
root = SD.open("/");
|
||||
|
||||
printDirectory(root, 0);
|
||||
|
||||
Serial.println("done!");
|
||||
}
|
||||
|
||||
void loop()
|
||||
{
|
||||
// nothing happens after setup finishes.
|
||||
}
|
||||
|
||||
void printDirectory(File dir, int numTabs) {
|
||||
while(true) {
|
||||
|
||||
File entry = dir.openNextFile();
|
||||
if (! entry) {
|
||||
// no more files
|
||||
//Serial.println("**nomorefiles**");
|
||||
break;
|
||||
}
|
||||
for (uint8_t i=0; i<numTabs; i++) {
|
||||
Serial.print('\t');
|
||||
}
|
||||
Serial.print(entry.name());
|
||||
if (entry.isDirectory()) {
|
||||
Serial.println("/");
|
||||
printDirectory(entry, numTabs+1);
|
||||
} else {
|
||||
// files have sizes, directories do not
|
||||
Serial.print("\t\t");
|
||||
Serial.println(entry.size(), DEC);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
Reference in New Issue
Block a user