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UPDATE:
SOLVED. Was my bad: a wrong mix in my Tx that created an extrange behaviour. All the procedure described below is correct. I leave it for interest to others.
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I´m testing for first time CAN with the new ESC32 (version "ESC32v20r49") and DIMU v1.1

The connection done is shown in the figure below. I´ve set ESC32 to ESC_ID =1.I´ve asigned MOT_CAN = 1 in QGC parameters page and the mixing table on Motor A, ID=1, Thrust = 100, P,R,Y = 0. Comunication console has show
"ESC32: CAN ID: 1, ver: 2.0.0 "

Working well

@James, thanks for your help.

I´ll try r54. I´ve compiled it using Makefile (attached the hex). There is already a Makefile prepared for that (Thanks for that, very useful!). The use is similar to AQ fw. In summary:
1.- Download r54 from repo. Copy STM32 library folders: “STM32” y “STM32F4xx_DSP_StdPeriph_Lib_V1.3.0” at same level of "/onboard"
2.- Change your compiler path in "makefile", line 64 . In my case is "CC_PATH ?= C:\CW"
3.- Open a CMD (Windows command prompt) starting in folder /onboard and run: "MAKE ALL". You´ll get the hex under "build" folder

Anyway, did you (or anyone) get ESC32 running properly using CAN?

Angel

Another note as well Angel, is Im using Mennos custom Firmware for the Hott telemetry which is based on R380. What FC firmware are you using?

I´m using AQ r372.

About impedance, I´m using the R120 Ohm sugested in between both lines H-L (see drawing above). Is that correct?. Can I measure the impedance simply with the Resistance measurement of the tester machine?.

Angel

Angel - can you describe or show a video of the behavior that seems incorrect?

With CAN, you either have an open channel or you do not. The fact that the FC reports connecting with ESC ID # 1, means that your CAN bus is likely ok.

Also, as CAN support has been refined over time, I'd recommend going with the latest firmware revision - rev 381. I've got a fair bit of time on it in the air using CAN & DIMU so you won't be the first.

SOLVED

Was my bad: a wrong mix in Tx that created that extrange behaviour.

@jdmagoo: thanks for your test. I measured the impedance and was 60 Ohms. I use only one R = 120 Ohms (as in scheme).

I´m using r54 on ESC32 (the one attached above).

Angel