Try telling us more about the circuit you are connecting your design
to.  What is creating this LE?  How are the LEDs being driven, exactly?

-Adam

Joe Denehan wrote:
>
> We have a machine where I work which if fairly old. When it jams it reports
> the error as a 2-digit code, displayed on 2 7-segment displays. I wish to
> capture the BCD input to the display using a PIC and translate this code to
> an error message which will be displayed on LCD. I have the circuit working
> on a breadboard but when I connect to the trigger LE on the display the
> trigger signal distorts ( measured with oscilloscope ) and affects the
> 7-segment display, I cannot get a reading. I tried a direct input into the
> PIC, I tried an Opto-isolator and also tried an Op-amp as an inverter and 1M
> resistors to limit the current draw but the signal still distorts. Can
> anyone suggest a way to get the trigger from LE without distorting the
> original signal?
>
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http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads