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Hard PWM pin 9 does not work properly after SoftPWMBegin has been called #12

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Description

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(Seeing problem on the Mega 2560 using Arduino 1.0.3 IDE)
Reproduction:
1. Call SoftPWMBegin() in setup
2. Call analogWrite(9, x) with varying values for x
3. Only 0% or 100% duty cycles are output on the pin. There is no fading if you 
attach an LED.
4. All other hardware PWM pins I've tried worked fine

Original issue reported on code.google.com by ScottSte...@gmail.com on 8 Apr 2013 at 2:11

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