Quote:
Originally Posted by neg0riz0r
So I've built a simple timer circuit which gives me a
PWM input rate T = 22 ms
and a PWM puls rate of 1.1 - 2.3 ms (controllable with a potentiometer).
I monitored that signal with a storage oscilloscope to double check this data. The values are correct.
According to that information, it should work fine:
http://www.vexrobotics.com/products/...ontroller.html
neg0riz0r |
It may be that you are controlling the wrong parameter. The pulse repetition rate is 16ms or about 60Hz always. You need to vary the pulse width to control the Victor. Please take a close look at Mark's reference on page 2. The width of the pulse changes from 1ms wide to 2ms wide. At 1ms wide the Victor is in full reverse, at 1.5ms the Victor is at neutral and at 2ms the Victor is at full forward. At 1.5ms the signal will remain low for another 14.5ms. You are able to control the Victor in reverse because your rep rate is close enough for the Victor to decode useful data but not as you advance the pulse to 2ms.