Re: [avr-gcc-list] About context saving in Vectors

David Kelly wrote: On Wed, Jan 14, 2009 at 09:14:20AM -0700, dlc wrote: The solution is to NOT call functions from within your ISR. That is just evil. Get your data in the ISR, put it in a mailbox or buffer and have a regularly scheduled function handle the details from outside the ISR

Re: [avr-gcc-list] About context saving in Vectors

not. It just isn't that easy in the AVR with GCC and the code overhead in the ISR was staggering to me. I don't yet know all the ins and outs of how gcc/AVR handle ISR's, stack, and other things that I know very well on the PIC. I'll get there. DLC David Kelly wrote: On Wed, Jan 14, 2009 at 12

Re: [avr-gcc-list] AVR-GCC 4.3.2 producing larger output than AVR-GCC 4.1.2 with the same source and options (-Os)

I've noticed that too. My Arduino bootloader fits into the 512 byte boot section when compiled with avr-gcc 3.4, but doesn't when compiled with avr-gcc 4.3. You've found an even closer gap with the jump between 4.1 and 4.3. DLC Nicholas Vinen wrote: This seems rather unfortunate

Re: [avr-gcc-list] On getting an ISR leaner with GCC

the trick. I'm going to experiment with this a bit, I like this ability since I _know_ what variables I'll be playing with. I can set aside a global temp variable to use whose value does not need saved and handle the essential register saves myself. Fun stuff, DLC Best regards, Stu Bell

Re: [avr-gcc-list] On getting an ISR leaner with GCC

, but ISR's have to be much more carefully considered! have fun, DLC Bob Paddock wrote: Look up: __attribute__((naked)) That should get you down to the bare metal where you have to do it all. On Sat, Dec 27, 2008 at 2:52 AM, dlc d...@frii.com mailto:d...@frii.com wrote: The subject

Re: [avr-gcc-list] How to handle interrupt vectors ?

. Realistically ISR's are a thing apart from the rest of the program (usually) so this is rarely an issue. IMO, IME, DLC Mr Foo ___ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-gcc-list

Re: [avr-gcc-list] Eclipse, avarice, JDB usage?

) and some MEGA (Mega8535). Time to change anyway. DLC -dave -- - Dennis Clark TTT Enterprises www.techtoystoday.com - ___ AVR-GCC-list mailing

[avr-gcc-list] Eclipse, avarice, JDB usage?

plugin To debug a program? It seems a lot of effort to create avarice to connect to the ADB engine for debugging for no one to use it. Is there a group dedicated to that topic perhaps? thanks, DLC -- - Dennis Clark TTT Enterprises

[avr-gcc-list] Error launching external scanner info generator???

and all seems fine but for that nagging warning. What is that? How do I get rid of it? Again, the compiler does its thing, the linker, elf, hex, list files are all created and there. But that warning irritates me because I can't find its origins. Any ideas? thanks, DLC

[avr-gcc-list] Problem with interrupt on a MEGA8535

why this code will not function properly? Any ideas accepted, including Dennis you ignorant expletive deleted... In the mean time, I'm going to examine the assembler output... many thanks, DLC -- - Dennis Clark TTT Enterprises

[avr-gcc-list] Where/how to get latest stable version?

out of date. Can some kind soul tell me where to get a Max OS X distro, or lacking that, how I can pull in the requisite projects to build them? What I have works fine for me, but I'm looking at some new parts... many thanks, DLC -- - Dennis