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 Posted: Mar 26, 2001 - 04:06 PM |
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Hi,
We are shifting our development work to the avr-gcc compiler, and as part of that effort I have ported a medium size assembler application to the avr-as assembler (from the Atmel assembler). The main reason for this is that we have new libraries written in C which we have to integrate with the existing code. We are also under pressure to meet deadlines so rather than re-write the application from scratch, we are persisting with the port.
So far it looks good. We spent several days with the code and it now compiles clean under avr-as/gcc, plus I did the first test integrating C code and it works nicely. Note, 'main' function is written in assembler and the C functions are called from the assembler code. Our problem now is that I have not been able at any stage to get AVR-Studio to "see" our assembler or C source files when I try to simulate the code. In fact, when I load our object file, the only source file that AVR-Studio sees is the gcrt1.S run time startup file. I can simulate this, but as soon as I run off the end (step over the "jmp main") at the end, AVR-Studio does not step any more code, until the first timer0 interrupt brings it back to gcrt1.S. If I press the break button, and change to disassemly listing, I can step through the assembler code as normal. I still can't see any souce.
I have tried various fixes, including specifiying full paths in the makefile and source files (.includes ....). This did stop AVR-Studio from complaining that "some source files could not be found" and "Error in Nordic object file", but that it - still no source.
Any advice would be appreciated. The programming team here are pulling their hair out having to simulate at the disassebly level!
Cheers
Scott |
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Posted: Mar 27, 2001 - 08:04 AM |
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Joined: Apr 17, 2001
Posts: 203
Location: Linkoping, Sweden
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Are you aware of that the AVR studio is not capable of having the source in different paths? Also try to remove all AVR-studio related files and start over from scratch if you haven't done that ten times already :-)
/Bengt |
_________________
My favorites:
1. My oscilloscope, Yokogawa DLM2024.
2. My soldering iron, Weller WD2M, WMRP+WMRT.
3. JTAGICE mkII emulator and debugWire.
4. ImageCraft ICCAVR C compiler.
5. ATmega168
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Posted: Feb 19, 2009 - 01:59 PM |
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Joined: Feb 12, 2009
Posts: 8
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Does anybody know about the Atmel ATA2270-EK1?
im using it for a college project but i have no idea what output is coming from it- is it analog or digital or how many bits??! also how do i connect the main board to an 8051 microprocessor?
SOMEBODY PLEASE HELP ME!!! |
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Posted: Feb 19, 2009 - 03:54 PM |
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Joined: Nov 17, 2004
Posts: 13960
Location: Vancouver, BC
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First, this thread is 8 years old.
Second, your post has absolutely nothing to do with the original post.
Third, there is plenty of documentation on it (including code) on Atmel's web site. |
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Regards,
Steve A.
The Board helps those that help themselves.
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Posted: Feb 19, 2009 - 07:32 PM |
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Joined: Mar 27, 2002
Posts: 18757
Location: Lund, Sweden
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| Forth, this is a cross post. There is another thread where the discussion is on-going. |
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Posted: Mar 05, 2009 - 01:45 PM |
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Joined: Feb 12, 2009
Posts: 8
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gee tanx for help, jus tryin get sum help ere if ya know anythin, then help if not then i hav no interest in wat u hav 2 say
this is a passive post..coz i dont give a donkeys boll*x |
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Posted: Mar 05, 2009 - 07:08 PM |
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Joined: Mar 27, 2002
Posts: 18757
Location: Lund, Sweden
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| FYI, I wasn't posting to inform you that it was a cross post. I was posting to inform everyone else so that they don't risk wasting time posting in more than one thread. |
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Posted: Mar 06, 2009 - 02:12 PM |
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Joined: Feb 12, 2009
Posts: 8
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Posted: Jun 24, 2012 - 12:02 AM |
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Joined: Jun 23, 2012
Posts: 2
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Scott Pitcher, I'm in that same boat with you. In my case, I'm converting a project that was originally done in a defunct (unsupported) IAR workbench to AVR. I've given up on doing it in AS6 IDE; too many hang-ups.
I'm re-buildng at the command-line. I've re-built the C files with avr-gcc to produce .o objects. However, I'm hung up on using avr-as for the one assembly source in the project.
If you or anyone has answers on how to use avr-as and avr-ld, please lend me a hand. I need to put this thing to bed.
Thanks,
Bolt |
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Posted: Jun 24, 2012 - 03:59 AM |
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Joined: Mar 28, 2001
Posts: 20633
Location: Sydney, Australia (Gum trees, Koalas and Kangaroos, No Edelweiss)
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Quote:
Scott Pitcher, I'm in that same boat with you.
His boat sailed more then 11 years ago, Mar 27, 2001. He is probably doing something more useful like growing vegetables. 
May want to start a new thread in the AS5/6 forum. |
_________________
John Samperi
Ampertronics Pty. Ltd.
www.ampertronics.com.au
* Electronic Design * Custom Products * Contract Assembly
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Posted: Jun 24, 2012 - 10:09 AM |
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Joined: Feb 12, 2005
Posts: 16547
Location: Wormshill, England
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Porting C files from IAR to avr-gcc is fairly straightforward. There is a useful page: Porting From IAR to AVR GCC
IAR ASM syntax is only a question of changing a few directives.
However it probably makes assumptions for register usage that differs from the avr-gcc calling conventions.
Personally, I would re-write the ASM functions as C functions. Then only use avr-as if necessary. It is easier to just hand-optimise what the C compiler has generated.
Just quote which directives / sequences you have trouble with.
As js has suggested, a new thread is worthwhile. Your problem is not related the this thread's Subject Title !
David. |
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