Electronic, 3D printing and embedded programming
Implementing an FTP server on an STM32 involves integrating the W5500 Ethernet module, ENC28J60 Ethernet controller, SD Card, and SPI Flash. This setup enables efficient network communication and storage, allowing the STM32 to handle file transfers and manage data effectively in embedded systems.
In this article, we are going to integrate into our ESP32 or esp8266 an external flash memory in addition to the internal one.
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.
I want to simplify the use of external SPI flash memory with my Arduino MKR WiFi 1010, therefore, I have created, a simple Shield PCB to achieve my purpose faster.
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.
For devices like Arduino UNO, we can use the SPI Flash with a basic and very light library, but It can manage a good quantity of memory (from 256Kb to 64Mb), and it’s enough for a lot of projects.
