AVR-Chat

--- In AVR-Chat@yahoogroups.com, BobGardner@... wrote:
>
> how to connect 2 AVR with out serial 
> for Example :
> PORTD of AVR1 ==  Sending data
> PORTD of AVR2 == Resiving data   XXXXXX
> ===============================
> 8 bit parallel: Need to send on one port and receive on another,
also need  
> handshake lines
> Or use SPI if distance is not too great
> Or use 1 output and 1 input and 'bitbanging'... can be either full
duplex  or 
> half duplex


if for Max 4 cm distance i need a hardware for this ?

how to connect 2 AVR with out serial 
for Example :
PORTD of AVR1 ==  Sending data
PORTD of AVR2 == Resiving data   XXXXXX
===============================
8 bit parallel: Need to send on one port and receive on another, also need  
handshake lines
Or use SPI if distance is not too great
Or use 1 output and 1 input and 'bitbanging'... can be either full duplex  or 
half duplex
 
 
 





************************************** AOL now offers free email to everyone. 
 Find out more about what's free from AOL at http://www.aol.com.


[Non-text portions of this message have been removed]

Amir Hosseini wrote:

>--- In AVR-Chat@yahoogroups.com, BobGardner@... wrote:
>  
>
>>how to connect 2 AVR with out serial 
>>for Example :
>>PORTD of AVR1 ==  Sending data
>>PORTD of AVR2 == Resiving data   XXXXXX
>>===============================
>>8 bit parallel: Need to send on one port and receive on another,
>>    
>>
>also need  
>  
>
>>handshake lines
>>Or use SPI if distance is not too great
>>Or use 1 output and 1 input and 'bitbanging'... can be either full
>>    
>>
>duplex  or 
>  
>
>>half duplex
>>   
>>
>
>
>if for Max 4 cm distance i need a hardware for this ?
>  
>

yep.