38 lines
1,018 B
C++
38 lines
1,018 B
C++
/*
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* Open all files in the root dir and print their filename and modify date/time
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*/
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#include <SdFat.h>
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// SD chip select pin
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const uint8_t chipSelect = SS;
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// file system object
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SdFat sd;
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SdFile file;
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// define a serial output stream
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ArduinoOutStream cout(Serial);
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//------------------------------------------------------------------------------
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void setup() {
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Serial.begin(9600);
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while (!Serial) {} // wait for Leonardo
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delay(1000);
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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 (!sd.begin(chipSelect, SPI_HALF_SPEED)) sd.initErrorHalt();
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// open next file in root. The volume working directory, vwd, is root
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while (file.openNext(sd.vwd(), O_READ)) {
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file.printName(&Serial);
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cout << ' ';
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file.printModifyDateTime(&Serial);
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cout << endl;
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file.close();
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}
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cout << "\nDone!" << endl;
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}
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//------------------------------------------------------------------------------
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void loop() {}
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