ComputerVoltageSources

--- In ComputerVoltageSources@yahoogroups.com, "John Loffink" 
<jloffink@...> wrote:
>
> Do we have to pay for your DPO4000 too?  That will be one expensive
> piece of code. :-)

You know, this scope is quite affordable.  But no, I've just borrowed 
it for now.

I did manage to interface the AtomPro24 I2C to a SAA1064 I2C to 7 
segment LED driver. I am sending 6 data bytes in a single message (7 
bytes total since it includes the device address byte) in 1.32 mS.  
The receiver is correctly ack'ing the packets and I am not getting any 
AtomPro24 errors.

With interrupts enabled at 1 mS timer, I can see the packets jitter as 
the cycles are stretched by the interrupt service routine.  It all 
seems to work quite well (as long as you used a scope to figure out 
the peculiarities of the i2cout command).

The burst data transfer is 4545 bytes/second.  Now that I have a known 
data stream, I will see if I can get an AVR to correctly receive it.  
I'm not going to do anything until my LCD arrives and I can verify 
functionality of my code.  I don't want to tear the development system 
down yet.  The LCD is scheduled to arrive Monday.

Dave