I am trying to have OTA updates via MQTT using tls. And also MQTT communication with tls. For that I need the changes that are made in that repo (https://github.com/tve/micropython/tree/tve) (They are in the beggining of the README file . That is why I need that micropython version.
I will try once again and check if I am not missing anything.
I suspect there is something wrong with portnativeglue on tve fork.
It defines some types that should be defined by system libraries. For example:
typedef int size_t;
typedef int int32_t;
typedef unsigned int uint32_t;
When integrating lvgl into Micropython, we add an include in mpconfigport.h to lv_gc.h. This is needed in order to integrate lvgl gc-roots into micropython’s MICROPY_PORT_ROOT_POINTERS.
However, it also means that mpconfigport.h now includes some headers that come from lvgl, such as lv_gc.h, lv_mem.h etc.
These headers assume the existence and uses standard types such as int16_t, size_t etc.
However, it looks like portnativeglue on tve fork both includes mpconfigport.hand re-defines these types and this is what causes the errors you see.
To solve this, either remove #include "mpconfigport.h" or include standard C library headers instead of these redefinitions in portnativeglue of tve fork.
Did you try writing to @tve about this?
I’m planning at some point to align lv_micropython to upstream Micropython.
If tve’s changes are integrated into Micropython upstream by the time I do that, or if you can already use an up to date Micropython instead of tve’s port, that could solve your problem.
This is awesome!! Thank you so much @tve ! I will try it and will give feedback. I really really appreciate you taking the time for helping! @amirgon Thank you so much too! I really appreciate your tips and calling out for tve !
Hands to work now!
Heads-up that there is a problem still in keeping lv “running”. The timer in lvesp32 that schedules lv_task_handler isn’t working, and if it were it would run every millisecond, which I don’t think is practical. I’m looking into it: What calls touch.read() for xpt2046?
If you’re using this without SPIRAM we have to do a bit of work to reduce the amount of memory that MP allocates to itself so there’s something left in the esp-idf heap for LVGL and the networking stack… Probably use a 0.8 factor in the esp32 main.c…
Yup, until now I was using the version without SPIRAM. I had this problem before Not enough DMA-able memory to allocate display buffer. But changing factor worked. Now it’s not working, even if I don’t use wifi etc.
Last case scenario I will use the M5stack fire (esp32 with SPIRAM) that I ordered for the case I got this problem again, but I would like to use the normal version if possible.
But since I don’t even have the mqboard yet I don’t how feasible it would be in the future to use everything just with the normal esp32.
About the problem with the lv_task_handler I haven’t got to that point yet and don’t really know the lvgl internals. But I am sure that somebody can help us. Maybe @amirgon or @kisvegabor if they have the time.
I was setting the factor wrong nvm. With factor 16 your example runs fine. But when I try to add the network stack I get this… I haven’t change anything else yet.
W (2739) wifi: malloc buffer fail
E (2739) wifi: Expected to init 10 rx buffer, actual is 6
Traceback (most recent call last):
File “main.py”, line 56, in
File “main.py”, line 52, in main
RuntimeError: Wifi Unknown Error 0x0101
Btw when you say setting a 0.8 factor in the esp32 main.c do you mean setting
mp_task_heap = malloc(mp_task_heap_size); to mp_task_heap ==malloc(0.8*mp_task_heap_size); ? For future reference if needed.
@tve have you successfully flashed a version with PSRAM? On my m5stack fire (16mb flash + 520kbRAM + 4MB PSRAM) I am getting:
E (830) esp_image: Image length 2108848 doesn’t fit in partition length 2097152
E (830) boot: Factory app partition is not bootable
E (832) boot: No bootable app partitions in the partition table
Is this normal? I’ll try to compile using espidf v3 instead of v4. Anything else I can do?
Sorry for all the trouble!