At 04:03 PM 1/23/03 -0600, you wrote:

>this has come about because I cannot get the LED to blink on this pin, RA4
>
>I tried setting adcon1 to 6, and trisa to 0
>but there is something else, or all my pics are damaged exactly the same
>way.

Here's a good starting point for blinking an LED with RA4. When you
understand why the 4K7 is in there, you can probably write software
that allows you to leave it out. ;-)

                            Vdd
                             +
                   +---------+-----+
                   |               |
                   |              .-.
               Vdd |              | |470R
           .-------o-----.        | |
           |             |        '-'
           |             |         +--------+
           |  PIC        |    LED  |        |
           |             |         V /     .-.
           |             |         - /     | |
           |             | RA4     |       | |
           |          +--o----+    |    4K7'-'
           |          |  |    |    |        |
           |          |  |    +----+--------+
           |       ||-+  |
           |       ||<-  |
           |      -||-+  |
           |          |  |
           |          |  |
           |          |  |
           '----------|--'
                     ===
                     GND

(view in fixed-width font)


Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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