AVR-Chat

My favorite C compiler for Atmel AVRs is CodeVisionAVR. One of the 
big things I like about CV is the CodeWizard.

You can DL and checkout the evaluation version at
http://www.hpinfotech.ro/html/download.htm

To me the big draw to WinAVR is that it is free. The time spent using 
it is very costly "to me".

Mike


--- In AVR-Chat@yahoogroups.com, Thomas Keller <tkeller1@n...> wrote:
> On Fri, 2005-08-12 at 10:16 -0500, David Kelly wrote:
> [ additional text removed for brevity]
> > avr-gcc is very good. The WinAVR package makes it painless to get
> > running on Microsoft platforms (let me condition that with "as
> > painless
> > as it gets there.")
> 
>    I have a few complaints about avr-gcc, though.   One is that it
> doesn't geenrate very tight code.  Try the -S option, and take a 
look at
> the assembly source the code generator is outputting.  Not very
> efficient.
> 
>    In particular, they use r24-r25 to load every variable 
referenced,
> then transfer to values to other registers for operastions.  
Wasteful of
> time, and program memory space (which, on most AVRs, is severely
> restricted).  There is also a fiar amount of manipulation of vlaues 
that
> may well be necessary, but I have been unable to determine why, or 
gfor
> what.  In very simple programs (test cases) involving something as
> simple as adding two values together, there will be numerous rotate 
and
> shift instructions which, for the life of me, I cannot identify the
> purpose of.
> 
>    Granted, being unwilling (or, as in my case, unable to afford 
to) pay
> the price of a commercial product, one shouldn't complain too loudly
> about the free product's blemishes.
> 
>    I have been very frsutrated trying to get the emulators and such 
to
> work under linux, though.   Since my WinBlows box died, I have only 
this
> old P-II/333 with 64 MB of RAM, and I haven't been able to get 
anything
> but avr-gcc to actually work.  I have tried several of 
the "programmer"
> packages, witgh my ETT ET-JRavr, to no avail.  I also have an "AVR 
Lite"
> board that doesn't seem to work with anyof these programs.
> 
>   Speaking of the ET-JRavr, I have a small problem perhaps someone 
here
> cam assist me with:  I purchased this board on eBay, complete with
> documentation CD.  It arrived exactly as advertised (I have no 
room,,
> technical.y, for complaint).  Only one problem.  The documentation 
on
> the CD is all written in Thai!  No English options.  I have 
communicated
> with ETT in Thailand several times via email, with no respoinse (I 
have
> a sneaking suspicion no one in their home office speaks/reasds 
English).
> 
>   Further research yileded the information that an outfit named
> FutureLec also sells this board.  I have emailed them at least 1/2 
dozen
> times, also with no response.   I need English lnagueg 
documentation on
> this developmebtboard, if I am to make any use of it at all.
> 
>   It offers many amenitys, including every I/O pin being availabel 
at at
> least one header.  In has 5 8 pin DIP sockets for a real-time clock
> chip, an ADC chip, and some serial EEROMS (I assume).  Again, 
without
> data, I have no ideas what I can plug into these sockets.  I has a
> header fo an LCD display, for various forms of serial and parallel 
I/O,
> for PWM output, analog input, etc., etc.  It is amazingly 
complete.  If
> only I had some idea how to use all these features.  *sad grin*
> 
>   Can anyone on the list assist me in this?  I have this marvelous 
CD
> full of wonderful documentation in Thai (which is joyous to look 
at, so
> cursive and festive), which is 100% useless to me.
> 
> Thanks in advance 
> 
> tom