TMC2130 Just not working

Hi there
I've set upon the task of installing TMC2130s to a Ramps 1.4 system. I've followed every guide, wired it up correctly, and configured everything I can find in Marlin.

The solder jumpers are set correctly. I've fiddled with every setting I know how to do. I've even adjusted the current potentiometers.

1) I suspect the chip endstops are not working correctly. If it homes it tends to grind into the limit for a few seconds.

2) When I hit home, the steppers just buzz for a bit, then the system slows then move a little (about 20mm).

In Pronterface I can get it to move in all directions, the stealth chop works great. There seems to be plenty of torque in the motors. I built this printer around the TMC2130, doing away with the conventional endstops.

Can anyone give me any hints to help me forward on this?

Many thanks

How have you connect this?

Have you verified that SPI communication is working?

Have you looked at M122 [marlinfw.org]
NB "Need to have TMC_DEBUG enabled in Configuration_adv.h."

Have you disabled endstop pullups in firmware? (I believe this is needed, but cant be 100%... sure, was a while ago)

Edited 2 time(s). Last edit at 05/19/2018 06:35AM by Dust.

Thank you, Dust
If I pull an SPI pin I get a heap of error messages. It is the only verification I know how to find. Can you suggest a better way?

I have just disabled the pull-up - but still lets me grind past the stop.

Well I have no idea how you have wired it, and your remarkably proficient at being as vague as possible

I dont know what guide you followed, but I know this one works

[toms3d.org]

This is the most important part, when it comes to endstops

But this does presume your using X min, Y min and Z min endstops. You may need to adjust as needed.

Edited 1 time(s). Last edit at 05/19/2018 07:26AM by Dust.

I'm sorry, I should have given more info.
Yes, this is the diagram I used, as well as the second page with the SPI wiring. (Thomas Sanladerer's youtube).

Today I tried Chris Ryley's guide to configuring Marlin (I had the same problem with Tom's, thought I'd try another run-through by someone else). I also set up the stepper current using Mytechtips. (another youtube)

I've tried two sets of drivers, I've replaced my RAMPS and Arduino (genuine).


I honestly don't know where to go from here.

Hi, Again Dust
I just want to confirm I am using x and y min pins

It's been a few days, I guess either nobody has any clue, or just aren't interested.

I know I didn't explain myself well to begin with, I've been tinkering on this for a month or so (hence having time to order parts and try them) and apart from getting the stealthchop to work (it didn't initially) I couldn't figure out why the endstops weren't functioning. This is my second 3d printer build, my first ran A4988s. The vagueness of my report probably lends itself to the time it has taken to get this all going. I have followed countless guides and tried everything I can think of - coming to the forum was my last ditch effort.

Are there any diagnostics I can run on the chip to determine what is going on?

Edited 1 time(s). Last edit at 05/22/2018 02:35AM by mericanpi.

diagnostics

Quote
Dust from first reply
Have you looked at M122 [marlinfw.org]
NB "Need to have TMC_DEBUG enabled in Configuration_adv.h."

all the registers from the TMC you could want, and then some.

Edited 2 time(s). Last edit at 05/22/2018 04:19AM by Dust.

Thank you, Dust. Yes, it is enabled, always has been. At this time I only get the console messages on pronterface. I mentioned that if I unplugged an SPI cable I got a list of error messages, so I assume that it is working to a point. Does the terminal window deliver all the log messages that come from the chip?

If this is the case, the chip is registering no errors and no boundaries reached, and I need to find another source for my chips.