RC Servo Test with 7i96s

  • Project_Hopeless
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15 Jul 2024 23:46 #305295 by Project_Hopeless
RC Servo Test with 7i96s was created by Project_Hopeless
Does anyone have RC Servo Test for a Mesa card setup similar to this older tutorial?

RC Servo Test

I tried using MesaCT and the only PWM output was the spindle, so I tried that.  I get an error something like SERVO_0 unknown.  So Im probably not setting the PWM channel correctly.

My PWM channel is on the BOB connected to P1 on the 7i96s.  Any help is appreciated.

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  • andypugh
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21 Jul 2024 10:56 #305772 by andypugh
Replied by andypugh on topic RC Servo Test with 7i96s
Since that example was written a dedicated RC servo PWM component has been added to the Mesa firmware. You could try seeing if there is a suitable firmware for your card.

(Though having had a look in the downloadable firmware, I haven't spotted one)

Making a normal pwmgen look like an RC pwmgen is just a case of setting the max duty cycle to be only 1ms in 20ms (IIRC) and with a minimum duty cycle too. This might take a bit of hand-fettling of the HAL files.

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