June 16, 2024, 04:04:28 PM

How to use 4 MB flash

Started by LeoB, September 29, 2020, 09:38:35 AM

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Hello all,
I bought some ESP32-Devkit-Lipo to make some tests with ESP32 and to understand if I can use this board for my purpose.
I'm using Micropython for my scope and I installed the last firmware and I tried both version with and without SPIRAM support.
In both cases when I upload the base firmware I got back the message saying "Auto detect memory: 4MB" but during the boot I got back a SPI init failure and checking the free space using the command micropython.mem_free() I see only 110K of free space.
Could you please help me to understand what's wrong?

Thank you!


I don't see a problem. This seems normal, most memory is used for the operating system and python interpreter itself.
Technical support and documentation manager at Olimex


Ok, thank you for your reply.
What sounds strange to me is that with the firmware with or without SPIRAM, I got the same space and the firmware with SPIRAM support I got back the error "SPI RAM not initialized". For this reason I supposed there is something wrong.
Thank you