Electronic, 3D printing and embedded programming
FatFs is a generic FAT/exFAT filesystem module for small embedded systems. The FatFs module is written in compliance with ANSI C (C89) and completely separated from the disk I/O layer. Therefore it is independent of the platform. It can be incorporated into small microcontrollers with limited resource.
The first SMT32 prototype boards don’t have an embedded SPI Flash, but the latest, like the WeAct STM32F4 board, has a footprint to add It. And for me, It’s very useful. The only problem Is that this Core doesn’t have a native library, so we will use the Adafruit one.
It’s fundamental for data logging the interfacing with SD cards. STM32 doesn’t support well native SD library, so we will use the SdFat library, which has an Adafruit fork also that we’ll use for other purposes.
As for other microcontrollers, I want to simplify the use of SPI Flash memory to Arduino NANO 33 IoT, so I create a simple PCB shield to add it fastest.
Arduino SAMD devices don’t have an internal SPI flash memory, but it is clear that a fast and small memory like that can be very useful, so we are to talk again (and again and again and again…) about storage systems.
The ESP32 has enough resources to be able to use a FAT system which is certainly more expensive in terms of resources, but which offers large dimensions and few limitations, as well as compatibility with various devices.
