MicroPython Forum (Archive)

Thanks for the description. I'm wondering a little bit that, at least for me, it seems the support in this forum is a little bit slow. I asked the question about the ota a month ago. In the beginning i thought there is a big community behind micropython but it seems rather small.

Here the procedure for manually building and flashing the OTA version of micropython: build boot8266: cd <projects-dir>/yaota8266/boot8266; make build ota version: cd <projects-dir>/micropython/esp8266; make ota > make-ota.log flash: esptool.py --port your-port erase_flash esptool.py --port your-po...

I was wondering if it would be possible to download firmware updates from a server and flashing it with those functions blockwise: https://github.com/micropython/micropython/blob/master/esp8266/modules/flashbdev.py I do have a project which is in the developing/testing phase and updating multiple es...

Can't I add a function with a viper decorator to a module which should become frozen?

Placing the function in main.py works. Placing it in the modules folder for building it, gives me "invalid micropython decorator".

@pythencoder thanks for this example. For the record, I'm @160MHz already. I was thinking one could find a trade-of between the for loop and a certain temporary array size. However, I thought about moving this task to assembler. It is a long time ago that I used asm but I came up with the following ...

If I cross compile a module with code having the @micropython.native decorator I get an "invalid micropython decorator" message. I assume it's necessary to tell mpy-cross the target architecture (Arm Thumb) but it's not obvious how to do this. I get the same error for the @micropython.asm_thumb dec...

Well, now you're creating 500 temporary lists, and for each its bytes representation. Did you try something really simple like: arr = bytearray(1000) for i in range(0, 1000): ...arr = (i%2)+1 I know but doing it with the loop increases the computation time by a factor of 6. As I wrote above, fillin...

I don't have device around to play with, but I guess it depends how it's implemented in micropython. First of all, [1,2]*500 is not really a good idea because that call creates temporary list that is then converted to bytesarray. Probably because the constructor sees list of integers, it unpacks ev...

What is the fastest way to fill the bytearray? So far I did: ARR = bytes([1,2])*500 which allocates 1000 bytes When I do the same thing with the bytearray ARR = bytearray([1,2]*500) it allocates 4000 bytes. It seems to allocate integers. Actually: ARR = bytearray(1000) allocates 1000 bytes ARR = byt...

My scenario is as follows: I do have to change an array of 1000 bytes from different functions(not in parallel). I found out, that Depending on how I do it, I run into MemoryErrors. What is the most efficient way to do the following: create bytes(1000) func1 change 500 of these bytes, send all 1000 ...