On 02/15/2021 10:56 AM, Jon Elson wrote:
The very old boards only gave a few hundred ns for the
resistor to pull the E-stop/ line up. If there was too
much capacitive load on the cable, it would not rise
enough and then the board would go back to E-stop.
I put a stretch circuit in the firmware to give the
resistors several us to pull the line up.
I THINK both of your boards SHOULD have this feature, but
I'm not totally sure.
I checked the firmware, and the ver 3 also has the 1 us
stretch on the come-out-of-estop pulse, so that should not
be the problem.
Jon
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