LitexCNC: firmware and driver for 5A-75B and 5A-75E

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2 years 5 months ago - 2 years 5 months ago #300054 by Ehsan_R
No, imagine the software is open and the motor is stationary, when I close the software or press the power or stop key, the motor starts moving until I open the software again and press the power key. In this case, the motor stops
Last edit: 2 years 5 months ago by Ehsan_R.

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2 years 5 months ago #300058 by besriworld
Yes, I understand that the controller produces steps when the program is turned off. But if the enable signal is going to each driver and it is working correctly the motor should be immediately turned off when exiting the program.
try on github ...
I have one such board on the shelf, but I have not played with this firmware.

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2 years 5 months ago #300059 by Ehsan_R

Yes, I understand that the controller produces steps when the program is turned off. But if the enable signal is going to each driver and it is working correctly the motor should be immediately turned off when exiting the program.
try on github ...
I have one such board on the shelf, but I have not played with this firmware.
There is a pin called 5A-75B:V8.2.watchdog.has_bitten in litexcnc.
Is there a way to disable all board output buffers, for example by concocting it to motion.motion-enabled?
If 5A-75B:V8.2.watchdog.has_bitten is equal to one, all output buffers of the board are disabled.

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2 years 5 months ago #300060 by PCW
Does the controller actually generate steps when LinuxCNC is not running,
or does it just float its outputs, possibly causing noise generation because
the I/O levels are undefined?

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2 years 5 months ago #300067 by Ehsan_R

Does the controller actually generate steps when LinuxCNC is not running,
or does it just float its outputs, possibly causing noise generation because
the I/O levels are undefined?
The motor starts moving at a speed of about 100 rpm
And this work continues until the software is opened again and the power button is pressed

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2 years 5 months ago - 2 years 5 months ago #300085 by Mecanix

Does the controller actually generate steps when LinuxCNC is not running,
or does it just float its outputs, possibly causing noise generation because
the I/O levels are undefined?
 
No it doesn't, neither ghosted. Works great (200+hrs so far, many parts). The I/O states are initialized and maintained hardware-wise (pullups/pulldowns). That's the machine-tool builder's responsability when designing the interfacing board/pcb.
Last edit: 2 years 5 months ago by Mecanix.
The following user(s) said Thank You: Ehsan_R

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