Howdy @jumjum, I'm working on a project for a 3rd party that needs a fashion of dynamic loading. Think loosely of compiling an application that has a world of dependencies on libraries but what we don't want to do is flash a monolithic 1 MByte file. Imagine a user coded: main() { digitalWrite(D0, H...

See here for what might be a similar question in the GitHub issues. I also found this this post which seems to sum it up: There isn't an equivalent for mmap-ing from a filesystem or any other device Here is more info about the IRAM that ESP_Sprite mentioned. Seems like SPI flash is the closest thin...

The ESP32 MMU does not have page tables as such, it just has a flat mapping. However, on a more general note, in the architecture for the ESP32 you can only execute from either flash or internal IRAM. This implies that you either need to flash your program into the SPI flash chip, or it needs to be...

Hello again, I did some research. And I believe in order for the loaded program to work, I need to put it in it's own Page Table. Which I believe is part of the MMU. The ESP32 has an MMU. So is it possible to create page tables? Is that implemented? And I still hope someone can answer the questions ...

Hi, As the title says, I am trying to build an "OS" that loads programs from SD into memory, and executes them. Now I'm not an expert on this, but I think I have an idea of what needs to be done. If I'm correct, I need something that will compile the programs, e.g. the esp-idf toolchain. Then, I nee...

Any1?

Hi, I'm interested in making a wireless webcam on solar panels, therefore I am looking at the most low power solution. I think my best bet will be a ESP32 with ov2640 camera or a raspberry pi zero with pi camera. For solar panel I will use a 5W 5V panel and this charger: https://www.dfrobot.com/prod...

Hi Since the ESP32 doesn't have a harddrive in the way a pc does, what happens when I call fopen?(if it does anything?) Will it create a file in SPIFFS? Is there a way to make it work, as I can't get it to work.(Gives me an error when trying to create a file) It would be nice if I can use the FILE c...

Yes - I was just testing memory allocation. 16bit is 320*240*2=153.6kb. I was using buffer for extra images By the way I am interested in jpeg decompressor that can unpack image into one single ram chunk. There is idf example but the function returns an array of chunks. Well, you can modify it to o...

Deouss wrote:Maybe use WROVER Esp with 4mb psram. I was able to allocate full chunk of 4MB with PSRAM flag for heap malloc.
That memory was used for same ILI9341 display but 16bit colors.

Interesting, only is 4mb not too much for 16bit?

My 4mb module is on the way.