I practically never use EIND in my code. This is useful if you intend to call functions in your bootloader, but otherwise the hassle of calling functions this way is a pain. My bootloader is very plain-vanilla, no interrupts code and does not provide any function to the main app *except* downloading new app code. For that one function, I force the boot procesure to a known location and call it with inline assembly language from the app.
Check out the following for instructions on handling ISRs and function pointer targets: http://www.avrfreaks.net/index.php?module=PNphpBB2&file=viewtopic&t=6891 1 http://www.avrfreaks.net/index.php?module=PNphpBB2&file=viewtopic&t=7038 7 I am using FreeRTOS, so I also place any RTOS functions that may be called at switch-context time in lower memory. They are placed in the linker section .task using the same methods as above. Best regards, Stu Bell DataPlay (DPHI, Inc.) > -----Original Message----- > From: avr-gcc-list-bounces+sbell=dataplay....@nongnu.org > [mailto:avr-gcc-list-bounces+sbell=dataplay....@nongnu.org] > On Behalf Of Dusan Ferbas > Sent: Monday, March 09, 2009 3:19 PM > To: Weddington, Eric; avr-gcc-list@nongnu.org > Cc: Andy H > Subject: RE: [avr-gcc-list] Re: eicall & EIND > > OK, I am not arguing :-). > I am just adding some strength to this issue, because it is > not only a problem of impossibility to reach far code, but > problem is also with interrupts, if you manually force eind. > > I also asked about info for trampolines. I was not able to > google out, neither find in this list. Any advice ? > > At 18:34 8.3.2009, Weddington, Eric wrote: > > > in June 2008, I discussed here calling a bootloader from an > > > application. > > > Now, we recognized that this is a common problem with calling > > > functions with eicall instruction. > > > >Known issue: > ><http://sourceforge.net/tracker/index.php?func=detail&aid=202 8719&group > >_id=68108&atid=520074> > > Dusan > > > > _______________________________________________ > AVR-GCC-list mailing list > AVR-GCC-list@nongnu.org > http://lists.nongnu.org/mailman/listinfo/avr-gcc-list > _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
