Remora - ethernet NVEM / EC300 / EC500 cnc board

Hello, I have the same question. Where should I connect the lathe spindle encoder? And how to configure it for close loop control of the spindle? I see that rbobey1989 did a lot of test on the MPG connector, but I need to use this connector for the NVMPG. Would it be possible to point out which optoisolator ic needs to be replace by level shifter? Thanks for the input.

@csurimilan
Your post has been moved to:
forum.linuxcnc.org/qtvcp/54583-call-cust...om-gui-button#315401

I'm in the middle of doing the spindle encoder, waiting on parts, I'm having no luck with the ADUM1200 chips, you can only get the ADUM1201 already soldered on a breakout board. So you will need to to desolder the 1201 and solder on the ADUM 1200. I'm going to try a iso7740 next. If you look at past posts the pins which you can use as an encoder are listed. You will have to solder a jumper wire directly to one of the opticouplers that is used as an encoder input to bypass it. 

Thayloreing wrote:

Sorry, I didn't understand the translation well, I don't speak English, in this case the remora doesn't support high pulse frequencies due to the limited hardware, does the ec 500 and ec300 have an input for high pulse frequency encoders? Or does it only allow you to make an extension module for the encoder? If so, what would this expansion module be like? Is there anything ready? and how would you add it? Sorry for the number of questions, I'm very interested in this project

It is supported, but refer to Murphys post, the limitation is in the board hardware.

csurimilan wrote:

My problem is now that if I jog with my keyboard and after i dont press anything sometimes the motors still do 1 or 2 steps. And i cant figure out why. Maybe someone has the same motion controller with linuxcnc or could help me?Thank you

It is related to the motor tuning setting in Remora/Linuxcnc

Could you leave a copy of the nvmpg cpp on your github? I'm thinking about creating my own mpg but only with buttons and I would like to study the programming that was used in it to be the starting point.

Let me be clear, I am referring to the .cpp that was extracted from the STM32F103RCT6.