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64 lines
1.5 KiB
Plaintext
64 lines
1.5 KiB
Plaintext
/*
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* This sketch will list all files in the root directory and
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* then do a recursive list of all directories on the SD card.
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*
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*/
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#include <SdFat.h>
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#include <SdFatUtil.h>
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Sd2Card card;
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SdVolume volume;
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SdFile root;
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// store error strings in flash to save RAM
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#define error(s) error_P(PSTR(s))
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void error_P(const char* str) {
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PgmPrint("error: ");
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SerialPrintln_P(str);
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if (card.errorCode()) {
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PgmPrint("SD error: ");
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Serial.print(card.errorCode(), HEX);
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Serial.print(',');
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Serial.println(card.errorData(), HEX);
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}
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while(1);
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}
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void setup() {
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Serial.begin(9600);
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PgmPrintln("Type any character to start");
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while (!Serial.available());
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PgmPrint("Free RAM: ");
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Serial.println(FreeRam());
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// initialize the SD card at SPI_HALF_SPEED to avoid bus errors with
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// breadboards. use SPI_FULL_SPEED for better performance.
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if (!card.init(SPI_HALF_SPEED)) error("card.init failed!");
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// initialize a FAT volume
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if (!volume.init(&card)) error("vol.init failed!");
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PgmPrint("Volume is FAT");
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Serial.println(volume.fatType(),DEC);
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Serial.println();
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if (!root.openRoot(&volume)) error("openRoot failed");
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// list file in root with date and size
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PgmPrintln("Files found in root:");
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root.ls(LS_DATE | LS_SIZE);
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Serial.println();
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// Recursive list of all directories
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PgmPrintln("Files found in all dirs:");
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root.ls(LS_R);
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Serial.println();
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PgmPrintln("Done");
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}
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void loop() { }
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