Dwayne Reid wrote:

> Change the code (I'm about to try this) so that after the pic is reset, it
> turns the TX line to an input and reads the level.  If HI, just jump to
> user code.  If LO, jump to the programming code but wait until the line
> goes HI before actually doing anything.

Good idea.

Actually, I have used a pushbutton switch instead on the project I am
working on, but I never thought to put in on the TX line.

If I hold the PB switch down at powerup,

        Program Mode -> update ROM -> Execute code

If PB switch is up at powerup,

        Execute Code

I'll try to implement this today.

Andy Kunz wrote:

> Which spread spectrum?  Which PIC chips?  Etc.

RF Innovations RFI-9256 - about $1K each.

http://www.crlabs.com.au/Default.htm


> You have a schematic you can share?

Just hooks straight upto the PIC16F877 UART on RC6 and RC7.


--
Best regards

Tony

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