ATC Project - Debug phase

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20 May 2022 01:17 - 20 May 2022 02:04 #243378 by spumco
Replied by spumco on topic ATC Project - Debug phase

Still have an issue with the homing - keep rotating indefinately until I kill it with an M65 P0.

Looking at the code, it shouldn't...
What is the "state" pin showing in this scenario? Does the "homed" pin set?


 

Yes, the 'homed' pin sets.

In addition, I compared carousel.comp in my installation to the github version linked earlier and they're identical.

Same behavior as before:
  • setting carousel.enable pin high results in continuous rotation (M64 P0).
  • setting an M68 E0 Qn before the first enable makes no difference.
  • 'homed' pin goes high when the index sensor is triggered
  • current position doesn't count up/down until I stop it with an M65 P0
  • jog-fwd and jog-rev both index one pocket, and the current position counts up/down appropriately.
  • carousel.0.state
    • "0" before first enable
    • "0" after M68 E0 Q2
    • "11" after first enable
    • "2" after sense-0 is first triggered
    • "4" after sense-1 is triggered
    • "0" after M65 P0 (at random location
    • "5" while jog-fwd or -rev is enabled
    • "0" when jog-fwd or -rev is disabled
Does that help the troubleshooting?

Thanks for your patience,
-R

 
Last edit: 20 May 2022 02:04 by spumco. Reason: carousel.comp compare

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20 May 2022 09:35 #243399 by andypugh
Replied by andypugh on topic ATC Project - Debug phase
Firstly, if you are on Bullseye then you won't find linuxcnc-uspace-dev as there are no packages for bullseye...

I think that the problem here is that enable is being set with tool = 0?

In the simplest situation you would connect carousel.0.enable to iocontrol.0.tool-prepare and carousel.0.ready to iocontrol.0.tool-prepared.

This would stop the carousel at the requested tool, and then "turn off" the component.

I think that in your case the carousel is rotating indefinitely looking for a non-existent pocket 0.

Is the behaviour better if you set the pocket -number to 1 before enabling the component?

Maybe "enable" should have been called "find" or something. It is expected to be set true only when it should be finding a tool.

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20 May 2022 11:44 #243404 by spumco
Replied by spumco on topic ATC Project - Debug phase
I set the pocket number to 1 (via M68) before the first enable (and homing) and the behavior changed a bit.

M68 E0 Q1 => state changed to 11, pocket-number changed from 0 to 1, current-position is at 0
M64 P0 => carousel started rotating CCW, 'homing' pin goes high
Sense-0 is triggered => rotation reverses, state changed to 4, current position changed from 0 to 1, 'homed' pin goes high, 'homing' pin goes low.
Rotation continues CW without stopping until M65 P0

The primary change is that the rotation reversed when the sense-0 is triggered, but it's still not stopping.

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20 May 2022 12:58 #243406 by andypugh
Replied by andypugh on topic ATC Project - Debug phase
Can you attach your HAL file?

What is the state during the continuous rotation?

What is the status of motor-fwd, motor-rev and motor_vel ?

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20 May 2022 15:14 #243411 by spumco
Replied by spumco on topic ATC Project - Debug phase

Can you attach your HAL file?

What is the state during the continuous rotation?

What is the status of motor-fwd, motor-rev and motor_vel ?

I will attach HAL when I get home later today, but the snippet I posted on page 1 of this thread is essentially unchanged (besides changing rev-dc to a negative number)

State during continuous rotation is 4.  This hasn't changed from my earlier post:
  • carousel.0.state
    • "0" before first enable
    • "0" after M68 E0 Q2
    • "11" after first enable
    • "2" after sense-0 is first triggered
    • "4" after sense-1 is triggered (during continuous rotation)
    • "0" after M65 P0 (at random location
    • "5" while jog-fwd or -rev is enabled
    • "0" when jog-fwd or -rev is disabled

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20 May 2022 16:02 #243412 by andypugh
Replied by andypugh on topic ATC Project - Debug phase


[*]"2" after sense-0 is first triggered
[*]"4" after sense-1 is triggered (during continuous rotation)


I think I see a bug, though not one that might usually be seen

"2" is looking for the position to be correct
    case 2: // moving
        if ((current_position != mod_pocket) && enable) return;
        if (rev_pulse > 0){
	    motor_fwd = 0;
            motor_rev = 1;
            motor_vel = rev_dc;
            timer = rev_pulse;        
	    state = 3;
        } else {
            motor_fwd = 0;
            motor_rev = 0;
            motor_rev = hold_dc;
            active = 0;
            if (enable) ready = 1;
            state = 4;
            break;
        }

I think that motor_rev = twice is a bug. But would probably only cause issues if hold_dc is non-zero.

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20 May 2022 19:35 - 20 May 2022 19:37 #243421 by andypugh
Replied by andypugh on topic ATC Project - Debug phase
You can get linuxcnc-usapce-dev as a package here:

www.linuxcnc.org/dists/buster/2.8-rtpree...-dev_2.8.2_amd64.deb

Install it with

sudo apt-get install ./linuxcnc-uspace-dev_2.8.2_amd64.deb

You need the./ to tell apt to look for a local file, not something on the repository servers.

Then try changing the code above to:
} else {
        motor_fwd = 0;
        motor_rev = 0;
        motor_vel = hold_dc;
        active = 0;
        if (enable) ready = 1;
            state = 4;
        break;
     }

Then
sudo halcompile --install carousel.comp
And see if things are better.
Last edit: 20 May 2022 19:37 by andypugh.

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20 May 2022 21:15 - 20 May 2022 21:23 #243435 by spumco
Replied by spumco on topic ATC Project - Debug phase

Can you attach your HAL file?

What is the state during the continuous rotation?

What is the status of motor-fwd, motor-rev and motor_vel ?

 

  • M68 E0 Q1
    • carousel.0.motor-fwd = LOW
    • carousel.0.motor-rev = LOW
    • carousel.0.motor-vel = 0
    • carousel.0.current-position = 0
    • carousel.0.pocket-number = 1
  • M64 P0
    • carousel rotates CCW
    • carousel.0.motor-fwd = HIGH
    • carousel.0.motor-rev = LOW
    • carousel.0.motor-vel = 5
    • carousel.0.current-position = 0
    • carousel.0.pocket-number = 1
    • carousel.0.homed = LOW
    • carousel.0.homing = HIGH
  • sense-0 triggered
    • carousel reverses direction (CW)
    • carousel.0.motor-fwd = LOW
    • carousel.0.motor-rev = LOW
    • carousel.0.motor-vel = -5
    • carousel.0.current-position = 1
    • carousel.0.pocket-number = 1
    • carousel.0.homed = HIGH
    • carousel.0.homing = LOW
  • M65 P0
    • carousel stops
    • carousel.0.motor-fwd = LOW
    • carousel.0.motor-rev = LOW
    • carousel.0.motor-vel = 0
    • carousel.0.current-position = 1
    • carousel.0.pocket-number = 1
    • carousel.0.homed = HIGH
    • carousel.0.homing = LOW

HAL attached, just in case I forgot some changes in my post earlier today.

I'll have a go at the halcompile right now.

EDIT - downloaded .deb
sudo apt-get install ./linuxcnc-uspace-dev_2.8.2_amd64.deb
Reading package lists... Done
E: Unsupported file ./linuxcnc-uspace-dev_2.8.2_amd64.deb given on commandline

Bugger.
Attachments:
Last edit: 20 May 2022 21:23 by spumco.

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20 May 2022 21:33 - 20 May 2022 21:36 #243436 by spumco
Replied by spumco on topic ATC Project - Debug phase

 

Disregard post, was looking at the imported version, not what's installed.

Can I just paste the updated code in /dev/linuxcnc/rip/src/hal/components/carousel.comp?
Last edit: 20 May 2022 21:36 by spumco. Reason: Duh

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20 May 2022 22:51 #243442 by andypugh
Replied by andypugh on topic ATC Project - Debug phase

Can I just paste the updated code in /dev/linuxcnc/rip/src/hal/components/carousel.comp?

Yes. Sorry, I had forgotten that you had a run-in-place version available.

(Which makes it all the more strange that you don't have halcompile) 

Can you try halcompile -h in both a new terminal and one that has run the rip-environment script? 
 

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