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Earle F. Philhower, III c487ca5233
Update to SdFat 2.0.2, speed SD access (#7779)
* Update to upstream SdFat 2.0.2

Increases the read/write performance for SD card accesses
by a significant amount, up to 5x (3+MB/s) in testing.

Fixes #7772 

* Add SDFS::availableForWrite handler

Peek into the sector cache to determine the maximum number of
bytes that can be written w/o needing a (slow) SD operation.

Fixes #7650
2020-12-23 11:39:12 -08:00
..

Arduino "class SD" shim wrapper

This is a simple wrapper class to replace the ancient Arduino SD.h access method for SD cards. It calls the underlying SDFS and the latest SdFat lib to do all the work, and is now compatible with the rest of the ESP8266 filesystem things.

-Earle F. Philhower, III earlephilhower@yahoo.com