[Question]MKS-Wifi and pure Marlin

[brdvvoz]

I have Marlin+MKS-Wifi+ESP3D combo and I really want to not be constrained by MKS version of Marlin, but I can't get ESP3D and Marlin to speak - Marlin tab in webui gives me 404 "Cannot get valid data".
How can I debug/fix this? Don't really know where to start.

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[luc-github]

what is your FW versions ? what are your boards ?

[brdvvoz]

ESP3D is 3.0.0.a94
Marlin 2.0.7.2
Robin Nano 1.2 and MKS Robin Wifi 1.0

[luc-github]

is only Marlin Tab ? or all commands that do not work?

[brdvvoz]

Commands don't work - I see movement, temperature etc. interfaces, but no temperature readings from printer and all actions are ignored

[luc-github]

did you set MKS_SERIAL https://github.com/luc-github/ESP3D/blob/3.0/esp3d/configuration.h#L43

#define COMMUNICATION_PROTOCOL MKS_SERIAL

[brdvvoz]

Yes, MKS_Serial in config and
Also baudrate is 250000 in both Marlin and webui

[luc-github]

no for MKS baudrate must be 115200 this is MKS design, you just need to change in ESP3D as Marlin Baudrate is not used for MKS module port

[brdvvoz]

No, still doesn't work
Weirdly enough It kinda looks like mks wifi code is somehow connected to lvgl which I don't use
I'll try compiling Marlin with lvgl and see what happens

[luc-github]

to be honest I never tested original Marlin as MKS Marlin version has several fixes not present in mainstream - I have also even raised several bugs to MKS but did not test since a while

[brdvvoz]

It seems that original Marlin has most of the related MKS code and I managed to compile fw with this code successfully. It had some effect (page loading way faster and it now shows "Loading... 2B" before fail)
BUT it still fails in the same way in the end
BUT I flashed MKS Marlin as sanity check and it behaves exactly the same so maybe there is something wrong in my ESP3D build after all? For instance, there are board parameters in Arduino IDE not listed in installation manual - Crystal Frequency, EspressifFW, Port etc. - which I left on default

[brdvvoz]

This is the board config - am I missing something?

[luc-github]

pls choose 2MB FS 1019 OTA because like this web update will not work, but it is not your issue currently
for other looks good

What [ES420]plain and M115 give as output ?

[brdvvoz]

M115 returns ok FIRMWARE_NAME:Robin_nano
[ES420]plain returns nothing, though I'm not sure what this is
M503 just returns "Ok"
Also movement actually works now, but temperature monitoring doesn't