ASR6052 support (heltec HTCC-AB02s)

[cyclops1982]

Hi,
I have a few of the HTCC-AB02s devices and was wondering if support for that within Meshcore would be appreciated? I've looked at some of the code and have seen an impressive structure on how the various devices are supported. It's mainly nrf52/esp32/rp2040, so adding ASR6052 (and 6051) support might be a bit more work than just a simple directory and some platformio.ini files.

This of course might already been attempted, so i'm wondering if this is will never work, or worth the effort :)

[cyclops1982]

Notes on issues:

• There doesn't seem to be LittleFS/Filesystem support for these chips, and only EEPROM

[recrof]

it has 16kB of RAM and 256kB of flash.. MC firmware won't fit.

[cyclops1982]

Thanks @recrof

What are the minimum requirements for the MC firmware in terms of RAM and flash?

[recrof]

stm32 MCU we have in the lot has 64kB of RAM - not sure if that is the lower limit tho. most of the MCUs we support have 512kB flash or more. 256kB is probably doable for sensors or repeater roles without fancies like wifi/bluetooth OTA and every sensor support. also depends on what stuff does the MCU have baked-in.. nrf52 has full bluetooth stack that you just call without need of chunky BLE lib.

[ViezeVingertjes]

I have a firmware for it here https://github.com/ViezeVingertjes/Heltec-Cubecell-MeshCore-Repeater
Note that is does not support remote admin and such, but it is fully functional in terms of repeating, discovery, adverts etc.

As for official MeshCore, i only was able to fit the KISS firmware on it from the official repository, not repeater or companion (yet), but perhaps it comes closer after #1632 is merged.