MicroPython Forum (Archive)

Hi, Actually, I am now pretty convinced it is a bug, because if i fixed it my problem was gone :) >The VERIFY_PTR macro says "if the pointer doesn't point into the heap, don't worry about it . . . because the gc is only supposed to touch the heap" Exactly, which is why there is a bug because the ini...

Hi, I am running into a problem that a thread that was blocked some time and then continues crashes if the garbage collector was active in the mean time, so obviously something gets cleaned up that shouldn't (it works if i do not do collect). So I am trying to understand the GC code to figure out wh...

Thanks for the suggestions, super interesting (I had already encountered the __enter__/__exit__ functions in the lock implementation when adding semaphore support, but was not too familiar with the context manager details) At the moment the __del__ method still seems to hold the advantage though, be...

Hi, Sanity check:I am looking for a way to get some kind of callback when the GC decides to remove an object to clean up some stuff. After digging in the code I think I have found that i need to enable 'MICROPY_ENABLE_FINALISER' , and then add a method __del__ to the local dictionary of the object t...

I would expect waiting for the GIL will make sure the heap is protected ?
(as i said, i am not calling for a "real" interrupt, so i can wait for it)

Hi, Looking at the stm32 can code, the general structure of an interrupt handler that does a callback seems to be int handler ( ) { int l_nResult = e_RETURNVALUE_Success; pyb_obj_t * self = xxx; mp_sched_lock(); gc_lock(); nlr_buf_t nlr; if (nlr_push(&nlr) == 0) { mp_call_function_x( l_pSelf->callba...

Too bad

Thanks for the clarification !

Hi, I was wondering how the documentation is generated for C 'drivers', eg pin.c The end result i can see eg at https://docs.micropython.org/en/latest/pyboard/library/pyb.Pin.html, and apparently a document generation tool sphinx is used. Now i see 'formatted' comments partially matching this in eg ...

Hi, I am using micropython on an stm32 on top of freertos with thread support in micropython and GIL. I am trying to figure out the best way to process 'events' arriving from other freertos tasks in micropython. If the event originated from an interrupt I will decouple it to normal freertos task lev...

Thanks for the links, i already found the official docs one but the others are more in depth. I do notice however that if i use mp-cross to generate an mpy file and then load that file as 'byte array' (currently for testing i just compile the resulting mpy in as a comma separated byte array, in the ...