Re: [WheelWatcher] WW-01 Code

[Pete Skeggs <plskeggs@xxxxxxxxxxxxxxxx>]

Curt,

What do the waveforms look like on the servo control pins (B1 and B2)?  
They should be oscillating at a 50 Hz rate (20ms period), with the high 
part of each square wave between 0.5 ms and 2.5ms, and then say low for 
the remainder of each 20ms period.

-Pete

CURTIS M ARMER wrote:
> Pete
> The motors will not move for any test as long as I have the #define
> LEFT_CLK_ON_TIMER_1 uncommented.  If I comment it out then the servos move in
> oppisite directions forever as soon as device is programmed.
>  
> Power is not a issue, I have proper voltages and all grounds connected
> together.  
>  
> I have never used a crystal oscillator before but maybe thats where my problem
> is.  I am getting a 20mhz sine wave from the crystal but Im not sure its
> supposed to be a sine or square wave. I also tried a can crystal with ttl
> output and that still produced sine wave. Thats another reason I tried porting
> to PIC18 since it has built in oscillator.
>  
> Here is the code I use to set fuses:
> #include <16F877.h>
> #device ADC=8
> #device *=16
> #DEVICE CCSICD=TRUE
> #use delay(clock=20000000)
> #use rs232(baud=9600,parity=n,bits=8,xmit=PIN_C6,rcv=PIN_C7)
> #fuses HS,NOWDT,PUT,NOLVP,NOBROWNOUT
>  
> Curt
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