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SOS-Config ruined after dist-up. Back to previous version old LinuxCNC dist?
- tommylight
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23 Sep 2019 15:12 #145972
by tommylight
Replied by tommylight on topic SOS-Config ruined after dist-up. Back to previous version old LinuxCNC dist?
As Andy mentioned that might be, in order of failure :
Hdd
Memory
Hdd controller
Memory controller
North Bridge ( controls the memory )
South bridge ( controls the HHD )
Overheating of the last two can cause such issues.
Another point of failure is the power supply, also causes all kind of weird issues on PC's.
Hdd
Memory
Hdd controller
Memory controller
North Bridge ( controls the memory )
South bridge ( controls the HHD )
Overheating of the last two can cause such issues.
Another point of failure is the power supply, also causes all kind of weird issues on PC's.
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- andypugh
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23 Sep 2019 15:22 #145973
by andypugh
Replied by andypugh on topic SOS-Config ruined after dist-up. Back to previous version old LinuxCNC dist?
I think that parallel port failure is a very likely possibility.
Normally I would suggest switching to a mesa 7i76E about this time, but I think it would be hard to configure that to suit the odd clocked-stepper system that is used on your robot.
Normally I would suggest switching to a mesa 7i76E about this time, but I think it would be hard to configure that to suit the odd clocked-stepper system that is used on your robot.
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23 Sep 2019 15:28 #145975
by andypugh
Is it possible that the failed joints are all controlled by the same parallel port, and the working ones by the other parallel port?
(It would have to be outputs only, as the home switches presumably still work, and they are shared between the ports)
Replied by andypugh on topic SOS-Config ruined after dist-up. Back to previous version old LinuxCNC dist?
Joint 0 and joint 2 work as they supposed to.The problem with joint 1 and the wrist(joint 3 and 4).
Is it possible that the failed joints are all controlled by the same parallel port, and the working ones by the other parallel port?
(It would have to be outputs only, as the home switches presumably still work, and they are shared between the ports)
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- m.bofi
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26 Sep 2019 09:14 #146239
by m.bofi
I mainly suspect HDD related problem since i had a minor issue when first installing LinuxCNC on this PC. So our most likely course of action is to buy a new PC and reconfigure, probably by next semester.
One other thing id like to report is that i couldnt make a pci parallel port to work by any means. Its an approx PCI-1P2S port
Replied by m.bofi on topic SOS-Config ruined after dist-up. Back to previous version old LinuxCNC dist?
Its kind of mixed so no unfortunatellyIs it possible that the failed joints are all controlled by the same parallel port, and the working ones by the other parallel port?
Exactly as you said. I thought of this possibility to bring the system up to date but it was very painful trying to configure itNormally I would suggest switching to a mesa 7i76E about this time, but I think it would be hard to configure that to suit the odd clocked-stepper system that is used on your robot.
I mainly suspect HDD related problem since i had a minor issue when first installing LinuxCNC on this PC. So our most likely course of action is to buy a new PC and reconfigure, probably by next semester.
One other thing id like to report is that i couldnt make a pci parallel port to work by any means. Its an approx PCI-1P2S port
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29 Sep 2019 15:00 #146585
by andypugh
Replied by andypugh on topic SOS-Config ruined after dist-up. Back to previous version old LinuxCNC dist?
This system is very sensitive to timing.
Can you attach an oscilloscope and verify that the strobe signal to the drive is timed correctly with the step / direction pulses and the axis select?
Can you attach an oscilloscope and verify that the strobe signal to the drive is timed correctly with the step / direction pulses and the axis select?
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