Issues

• PIO SDIO (RP2350): standard-capacity (2 GB, SDSC) cards fail ACMD41 — a short delay between polls fixes it

  greiman/SdFat#552 · Filter by author TadaNoButa opened on Oct 2, 2026
  11

• rp

  greiman/SdFat#550 · Filter by author artemmamcur900-cloud opened on Aug 30, 2026

• First open(O_CREAT) of new filename in crowded root directory takes ~20s on AVR — is there a faster path?

  greiman/SdFat#549 · Filter by author Bob128x opened on Apr 17, 2026
  5

• Differences between cardBegin(SD_CONFIG) and begin(SD_CONFIG) on esp32s3

  greiman/SdFat#548 · Filter by author brightproject opened on Apr 9, 2026
  3

• ls() only displays 1024 files

  greiman/SdFat#546 · Filter by author PerennialNovice opened on Jan 28, 2026
  2

• openNextFile() works fine, but only a few times

  greiman/SdFat#545 · Filter by author lenzp opened on Jan 4, 2026
  3

• numerous compile errors for TeensyDmaAdcLogger.ino SdFat version 2.3.1

  greiman/SdFat#544 · Filter by author rjsdotorg opened on Jan 2, 2026
  2

• Distinguish "begin()" errors from no SD card inserted to no valid partition found

  greiman/SdFat#543 · Filter by author XZCE opened on Dec 11, 2025
  1

• File32 x; WebServer.streamFile(x) build failure

  greiman/SdFat#540 · Filter by author PhiJu5 opened on Oct 9, 2025
  2

• ExFat VolumeBegin hangs when SD card is full

  greiman/SdFat#535 · Filter by author swanah opened on Sep 2, 2025
  4

• Does not work on Arduino DUE (SAM3X)

  greiman/SdFat#534 · Filter by author GuaAck opened on Aug 18, 2025
  2

• ESP-S3 with XTSD SD Flash Memory

  greiman/SdFat#532 · Filter by author allanyates opened on Jul 19, 2025

• Reading/writing to Micro SD sdSpecVer:2 FAT32

  greiman/SdFat#531 · Filter by author profffff opened on Jul 18, 2025

• file.isBusy() remains true after file.sync() when logging to exFAT using RingBuf on Teensy 4.1

  greiman/SdFat#529 · Filter by author Anjali8340 opened on Jul 3, 2025
  9

• How to read ESP32 SPI output timing half clock period earlier

  greiman/SdFat#528 · Filter by author sanjulanipun opened on Jul 1, 2025

• ValidDataLength Handling

  greiman/SdFat#527 · Filter by author brijohn opened on Jun 29, 2025
  13

• Unable to use library on GPIOs > 31 on RP2350B

  greiman/SdFat#524 · Filter by author jackson-milwaukee opened on Jun 20, 2025
  5

• How can I use pins 4,5,6,7 for SPI on the Pico?

  greiman/SdFat#523 · Filter by author SheetLightning opened on May 28, 2025
  3

• Support for Teensy 4 and 4.1 ?

  greiman/SdFat#522 · Filter by author SheetLightning opened on May 22, 2025
  2

• RP2040 fast logging

  greiman/SdFat#521 · Filter by author Anjali8340 opened on May 5, 2025
  3

• Example program BackwardCompatibility.ino doesn't work with SDfat

  greiman/SdFat#520 · Filter by author monsteroyd opened on Apr 25, 2025
  4

• SdFormatter error

  greiman/SdFat#519 · Filter by author rtek1000 opened on Apr 22, 2025
  3

• Two SDIOs on RP2040

  greiman/SdFat#515 · Filter by author Stass48 opened on Mar 11, 2025
  6

• Long time data logging in small files

  greiman/SdFat#513 · Filter by author Anjali8340 opened on Feb 15, 2025
  8

• Issue with Reading SD Card Formatted Using SDFat library on ESP32

  greiman/SdFat#512 · Filter by author arlindpajaziti opened on Feb 5, 2025