Digital Signal Processing wrote:
>Hi,
>
>I'm having problems programming my PICs.
>
>I have connected the MCLR pin of my PIC16F876 through a 10k resistor and a
>BAS16 diode to 5V. The programmer connection is straight to MCLR pin.
>
>I cannot get this to work.
>
>Now I understand is says I need a Schottky diode but can someone explain
>what difference a Shottky diode makes over a normal signal diode?

About half the forward voltage drop over the diode.

>(Sorry to
>be dumb)

No, that is a relevant question.

But do you really need an diode?
Om my board I have only the 10k resistor.
The ICD i use to program it to take that load without problem.
The cirquitry on the application consumes enough power to keep its +5V=
 nominal.


The rest of question i don=B4t recognize.

Have you checked LVP pin?
Different opinions there, but i use 10k resistor to GND, nothing else=
 connected so far, no problem.

Dinner time
/Morgan

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