What is model, make and JEDEC Id of QSPI flash memory chip in use by the RAK11300 module?
We want to use it in conjunction with Adafruit_SPIFlash library.
It would be nice to see the schematics of the module as well…
Welcome to the forum @xkremator
The Flash chip on the RAK11300 is the firmware memory of the RP2040 and cannot be used as storage for data.
According to the RP2040 specs - it has no built-in flash.
As an example - genuine Raspberry Pi PICO product uses 2MB Winbond W25Q16JV flash memory chip.
I didn’t say the RP2040 has internal flash. I said our module RAK11310 has a flash chip and it is used as firmware memory and from all I know it cannot be used from the application to store data or files.
The chip name is W25Q20CL
W25Q20CL is a 2 Mbit (256 kByte) silicon.
If this is true - that would be a shame for RAK to provide such a small program space for customer needs.
Earle’s Arduino Core for RP2040 (arduino-pico) is able to split ext. SPI flash onto 2 regions - 1) firmware, 2) filesystem.
Adafruit_SPIFlash library is able to use ‘filesystem’ region as a general purpose storage.