Ausplex

Paul... thanks for the tips,. Very helpful. I have a busy T4.1 for this upgraded project and didn't have 4 pins spare to attach an external SPI EEPROM. I've attached a Winbond 128 MBit chip and LittleFS is working like a charm. I'll convert...

Thanks for the reply Paul. I would be happy to use normal flash, but as best I understand it LittleFS is for file handling. I simply want to access several very large arrays of flat data (100K entries each with 8 bytes) that occasionally gets...

You won't be able to use those pads as a "regular" SPI port. The chip will only be accessible via FlexSPI or by bit-banging the pins. It might work with LittleFS, depending how standard the command set is.

I regularly use Teensy 4.1's with large external SPI EEPROM chips using my own code (no library) driving external SPI pins. My next project will use the M95P32-IXMNT/E 32 MBIT EEPROM chip that supports standard SPI and also QSPI. I am running...