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General Mach Discussion / Re: Need help with ports and pins
« on: March 24, 2017, 03:08:36 AM »
The Port 1 Pins Current State Led's don't always work as expected so they should be ignored.
If Output#3 LED flashes then that is OK.
When you measure the output voltage on Pin 17 the voltmeter should be connected between Pin 17 and Pin 25 (or any pin between 18 and 25).
Check that you have not allocated Pin 17 to any other functions within the Mach3 set-up.
Check that Signal GND (LPT Pins 18 to 25) is connected to GND on your breakout board.
Tweakie.
If Output#3 LED flashes then that is OK.
When you measure the output voltage on Pin 17 the voltmeter should be connected between Pin 17 and Pin 25 (or any pin between 18 and 25).
Check that you have not allocated Pin 17 to any other functions within the Mach3 set-up.
Check that Signal GND (LPT Pins 18 to 25) is connected to GND on your breakout board.
Tweakie.