Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
12/18/06 00:40
Read: times


 
#129652 - B & B?
Responding to: ???'s previous message
Andy Neil said:
Tomas Dabasinskas said:
Let me explain what I'm trying to achieve here...

That is always the best approach!

... looking for some activity on these 2 devices (serial 2,3) and once that happens download TAP message and save it in the buffer then transmit message on (seral1)

This sounds like basically just an automatic switch:

When you detect activity on Serial-2, you connect it through to the ASCOM;
When you detect activity on Serial-3, you connect it through to the ASCOM.

For this, you don't need to process the data at all - merely detect activity on one line or the other, and control the switch as appropriate.

Such things used to be available as ready made products; but, last time I looked (earlier this year), I couldn't seem to find them any more... :-(

Perhaps something like these?

http://www.bb-elec.com/product_f...milyId=102

--Sasha Jevtic

List of 12 messages in thread
TopicAuthorDate
newbie interfacing rs232            01/01/70 00:00      
   details...            01/01/70 00:00      
      re: details...            01/01/70 00:00      
         Automatic serial data switch?            01/01/70 00:00      
            B & B?            01/01/70 00:00      
               A bit OTT?            01/01/70 00:00      
   Try DS89C450, AT89S2051 (qty 2)            01/01/70 00:00      
      Why more microcontrollers?            01/01/70 00:00      
         is an external UART cheaper?            01/01/70 00:00      
            Are we over-complicating this?            01/01/70 00:00      
               Can switch autmatically in hardware            01/01/70 00:00      
   Thanks            01/01/70 00:00      

Back to Subject List