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General Mach Discussion / Re: 2nd parallel port
« on: April 03, 2012, 11:31:49 PM »
I opened the system info program per your suggestion, to get the pci port address but I get the following error: Can't access the Windows Management Instrumentation software. Windows management instrumentation files may be moved or missing.
I then swapped the port addresses in Mach and was able to make everything work with the original good set of hardware (onboard parallel port,G540,XYZA axis steppers) with the address in the 2nd port. I then tested the inputs on the G540 by grounding them 1 at a time and looking at the LED indicators on the diagnostics tab of Mach. I could make BOTH G540s show a signal in this manner. I reversed the port addresses back to the original locations and repeated the input signal test with the same results. So I knew I was getting communication through the PCI parallel port. Still no charge pump signal on pin 16 though. Finally I got the B axis working on the 2nd parallel port by disabling the charge pump manually. I then could actuate it in mach manually. I swear I tried this before but it it didn't work. I added my C26 buffer board inline with this port and had to put the jumper on the pins to indicate that pins 2-9 are inputs (wouldn't work when they were set as outputs). So, I still don't have a charge pump signal but I can make everything work by manually disabling this. Any thoughts on why everything else would work and not this?
I then swapped the port addresses in Mach and was able to make everything work with the original good set of hardware (onboard parallel port,G540,XYZA axis steppers) with the address in the 2nd port. I then tested the inputs on the G540 by grounding them 1 at a time and looking at the LED indicators on the diagnostics tab of Mach. I could make BOTH G540s show a signal in this manner. I reversed the port addresses back to the original locations and repeated the input signal test with the same results. So I knew I was getting communication through the PCI parallel port. Still no charge pump signal on pin 16 though. Finally I got the B axis working on the 2nd parallel port by disabling the charge pump manually. I then could actuate it in mach manually. I swear I tried this before but it it didn't work. I added my C26 buffer board inline with this port and had to put the jumper on the pins to indicate that pins 2-9 are inputs (wouldn't work when they were set as outputs). So, I still don't have a charge pump signal but I can make everything work by manually disabling this. Any thoughts on why everything else would work and not this?