Re: [Paparazzi-devel] PPM encoders with non-blinking LED

[Eric Parsonage]

Chris 

How are you powering the ppm encoder and the receiver ? I think this is the 
most likely cause of the problem.

Eric


On 06/01/2011, at 11:18 PM, Chris Gough wrote:

> I have a bunch of PPM encoders (ATMega types, v4.3 hardware and
> firmware) that do not behave as expected (from v4.2 manual). The LED
> won't blink, stays solid when powered with PWM input (expected 3Hz
> blink) and stays solid when PWM removed (expected1Hz blink).
> 
> The PWM input to the PPM encoder seems OK because it moves a servo
> (and I've tried multiple reciever/servo combinations). I don't have
> ability to test if PPM is coming out at the moment. Reloading the
> firmware doesn't change the situation.
> 
> I don't know if it's relevant, but if I install a servo on a Y-lead
> (ajacent to the PPM encoder, i.e. both getting same PWM), then
> removing JP1 on the PPM encoder makes the servo jitter wildly, and the
> servos on other channels of the same reciever jitter a little bit. All
> servos return to normal when the unpowered PPM encoder is
> disconnected.
> 
> Did LED blinking behavior change between v4.2 and 4.3?
> 
> Chris Gough
> -- 
> .
> 
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