Bill Greiman

Don't worry about wear leveling. SD cards keep a database of write counts and map logical to physical address. Data is copied to new areas to even wear. That's why...

You can't control where your data is stored in the physical flash pages in the SD. Modern consumer cards use TLC NAND, to store three bits per cell as eight...

I need more Info since it works on my [Feather M0 Adalogger](https://www.adafruit.com/product/2796). Here is the SdInfo example: > SdFat version: 2.2.0 > > Assuming the SD is the only SPI...

Adafruit should fix their SAMD driver. It has at least three bugs. Guess I will post issues again. I know Limor Fried AKA Lady Ada and she is extremely capable...

I suspect the panic is due to a an attempt to unlock a mutex that has not been locked. in ESP32 V2.0. The newest version I get with the board...

I tried V2.0.1 and it has a problem. Try running this test. It won't run on my ESP32 with SHOW_BUG set to one but will with SHOW_BUG set zero. This...

> I have two concurrent task using the sd card. One as an FtpServer, for reading writing the sd card for the ftp clients and another task reading the sd...

Could be a bug where SdFat accesses the SPI bus when not in a "SPI transaction". I have a macro that checks for this in src/SdCard/SdSpiCard.h at about line 36:...

I suspect SdFat will not work with EspTinyUSB. SdFat is not thread safe. The ESP32 port of FatFs depends on a mutex in SPI.beginTransaction() and SPI.endTransaction() at the diskio level...

The idea of accessing files simultaneously on an SD by another computer as an msc device and on the ESP32 with the system SD library or SdFat won't work reliably....