At 06:11 6/08/99 +0200, you wrote:
>"John A. Craft" wrote:
>>
>> I got one of the aforementioned BGMicro Trimble GPS receivers.  The
>> documentation indicates the serial ports being "TTL Level", Using one of
>> the MAX chips it talks to the computer just fine.
>>
>> If I want to talk to the USART port of a 16C63, what's needed?  Can I hook
>> directly?  Seems strange to hook a MAX to the pic and a MAX to the GPS.....
>
>I've done this with a pair of simple transistor invertors
>for year without any problems. Use the RTS line for the
>supply for the two transistors, and a zener to limit the
>voltage going to the PIC.
>
>This suggestion of mine always triggers a load of smart
>asses who want to complicate matters with loads of
>electronics.
>
>Take it away, guys... ;)
>

Now why would I want to Flame you Tjaart?
I think that this is a good idea, simple and not much to go wrong, unless
the port that you are connected to is a power stealing type but on an PC, nah.
This very idea (That's yours Tjaart) has been used by Philips in the past
with there 8051 stuff, so maybe they got it wrong too <G>


Dennis