MicroPython Forum (Archive)

Hmm reading function uctypes_struct_size and uctypes_struct_agg_size in moductypes.c I am not sure I understand correctly: I think the definition is as follows: - if the elements of the array are scalar type the spacing of the array elements is the size of the scalar - if the elements of the array a...

I'm wondering how the size of array elements is determined by micropython. given the following structure, what will the spacing of the array elements be? will it be the size of the struct defined as a array element 2+2+2 bytes or will it be the offset of the last element and its size: 8+2? DATA_STRU...

Just in case somebody is still wondering about the problems I had with the thread: This problem might be due to the omission of mine to read from the socket. I opened a socked and did write to it but I never read from it. I could not reproduce the problem described above when I do read from the sock...

Well inspecting this more I found that at some point the task priority of the main micropython task is raised to the task priority of the lwip task. And it will never revert back to it's original priority ... Which means, that the mp_thread did not actually die, but it does not get a chance to run a...

Sorry to raise this again: I found threads on the esp32 to be not reliable and I would like to know if anyone is using theme with success? Am I the only one to experience issues with theme? First things first: I use threads to do blocking IO operations like socket.getaddrinfo and ussl.wrap_socket. A...

does not seem to be an issue with the GIL. I modified the idle function in modmachine.c to exit the gil (this might be a good thing anyway?). Calling that function in both the loops in the main thread and the worker thread. Still the worker thread dies ... STATIC mp_obj_t machine_idle(void) { MP_THR...

BTW: One of the tests I performed was to raise the rtos task priority of the thread task by one so the threads priority is higher than the priority of the main python task. -> Same result..

Okay, I would not call this a minimal repro but this is the best thing I can come up with for now. See attachment. - The folder utrio includes a WIP port from python trio async await lib. Docs can be found here https://trio.readthedocs.io/en/stable/. - uamqtt is an async rewrite of the mqtt lib from...

@TVE, thanks for offering your help. Yesterday, I tried to write code to reproduce this issue from scratch. But I failed, so clearly I have not understood where the issue originates from. This evening or tomorrow I'll approach this the other way, by defeaturing my app. Once I have the minimum code t...

Well I face a strange error and don't know where to dig for a solution (ESP32 port on ESP32 WROVER) I have a custom written event loop which has a thread worker which is used to execute blocking operations such as getaddrinfo, wlan.scan, wlan.connect, ussl.wrap and so on. The code run in the thread ...