[Efi332] Hey guys - what's up?

[BowTieVette at aol.com]

Hey Paul,
When you refer to interrupt driven serial comm, there are two flavors of  
course, and I'm not sure which you mean. There is the regular byte by byte SCI,  
and there is the 16 byte queue QSCI layer. 
The interrupt driven SCI code has been around for a long while having been  
adapted from a Motorola app note years ago. You can find that in the now  
somewhat dated efi332 software archives at SourceForge. 
If you're after QSCI, then you'll need Dave's edition which works quite  well.
jc
 
In a message dated 2/5/2006 12:41:59 P.M. Eastern Standard Time,  
sailors3 at comcast.net writes:

Hi Paul,
 
Nice to hear from you! I know what you mean about side projects, my car  
project get set aside for 2 1/2 years while I built a large addition on the  back 
of our house. I had just bought a 1998  LS1 from a wrecked Camaro  (in 1999) 
and by the time I get that thing running in my 64 Impala it will be  obsolete!
 
Yes, I finally managed to get the QSCI running on the transmit side,  using 
interrupts. I just used the bottom half empty interrupt, it seems to be  
working very good. There are errors in the Freescale documentation, and  omissions 
that make it very hard to figure out how to use it, but time and  determination 
won. We are now thinking we need to go interrupt driven on the  receive side 
too, but have not implemented that yet.
 
regards,
 
dave
 
 

--------------  Original message -------------- 
From: "Paul Helmuth"  <PaulHelmuth at SprintMail.com> 
Jeff, Dave, et.al,
 
Guys - it's been a long time since I have  checked in with the group. 
 
Unfortunately some major remodeling has been  sucking up all of my spare time 
since sometime in October. Perhaps even more  unfortunate, I'm still not 
done. On the bright side, only the master  bathroom is left - so I will start 
sneaking some time in on the ECU  development.
 
I have actually done a little work recently on  a related sub-project. That 
is, development of a Windows Mobile application  for tuning. I'm new to 
development in Windows Mobile, so it's going to take  some time before I have it as 
functional as my standard Windows app, but I  have got some of the basic serial 
communication stuff working. Which is  what prompts me to check in and see 
what the current status is on interrupt  driven serial I/O from the MPC555.
 
I read Dave's last post and that sounds like  there are mixed results.
 
Hopefully I can get back to working on the  serial i/o on the ECU side within 
the next several weeks.
 
Hope all had safe and happy  holidays,
 
-




 
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