Yahoo Groups archive
Thread
2005-08-22 by mahlerweb
Hello, since friday, i try to make some simple examples work on a LC2294, (Olimex LPC-E2294) The examples work fine on a LPC2106 and a 2194. The LPC2294-Example from the Olimex-Web-page also works without problems, compiled by an IAR-Comiler. Has anyone an idea ??? Thanks, Peter
2005-08-22 by David Hawkins
> since friday, i try to make some simple examples work on a LC2294, > (Olimex LPC-E2294) The examples work fine on a LPC2106 and a 2194. > The LPC2294-Example from the Olimex-Web-page also works without > problems, compiled by an IAR-Comiler. > > Has anyone an idea ??? The startup code sets up stacks etc. You need to make sure that the startup code and the linker script has a memory map that is consistent with your device. Dave
2005-08-23 by mahlerweb
--- In lpc2000@yahoogroups.com, "David Hawkins" <dwh@o...> wrote: > > > > since friday, i try to make some simple examples work on a LC2294, > > (Olimex LPC-E2294) The examples work fine on a LPC2106 and a 2194. > > The LPC2294-Example from the Olimex-Web-page also works without > > problems, compiled by an IAR-Comiler. > > > > Has anyone an idea ??? > > The startup code sets up stacks etc. You need to make sure that > the startup code and the linker script has a memory map that > is consistent with your device. > > Dave Thanks Dave, i use different linker-scripts for 2106 and 2194, the startup-code is the same. IMO the LPC2294 should work with the same linker-script as LPC2194, or are there some more differences between these two devices ??? Is there anybody who can show me a working gcc project on LPC2294 ??? Thanks, Peter
2005-08-23 by mahlerweb
--- In lpc2000@yahoogroups.com, "mahlerweb" <peter.mahler@w...> wrote: > --- In lpc2000@yahoogroups.com, "David Hawkins" <dwh@o...> wrote: > > > > > > > since friday, i try to make some simple examples work on a > LC2294, > > > (Olimex LPC-E2294) The examples work fine on a LPC2106 and a 2194. > > > The LPC2294-Example from the Olimex-Web-page also works without > > > problems, compiled by an IAR-Comiler. > > > > > > Has anyone an idea ??? > > > > The startup code sets up stacks etc. You need to make sure that > > the startup code and the linker script has a memory map that > > is consistent with your device. > > > > Dave > > Thanks Dave, > > i use different linker-scripts for 2106 and 2194, the startup-code is > the same. IMO the LPC2294 should work with the same linker-script as > LPC2194, or are there some more differences between these two > devices ??? > > Is there anybody who can show me a working gcc project on > LPC2294 ??? > > Thanks, > > Peter Hello, i think i got it work!!! The problem was, that the Boot0 and Boot1 pin at LPC2294 were connected to ground, so the examples and linker- scripts, designed for internal flash memory, couldn't start. Thanks, Peter
2005-08-24 by jf_richard69
--- In lpc2000@yahoogroups.com, "mahlerweb" <peter.mahler@w...> wrote: > --- In lpc2000@yahoogroups.com, "mahlerweb" <peter.mahler@w...> wrote: > > --- In lpc2000@yahoogroups.com, "David Hawkins" <dwh@o...> wrote: > > > > > > > > > > since friday, i try to make some simple examples work on a > > LC2294, > > > > (Olimex LPC-E2294) The examples work fine on a LPC2106 and a > 2194. > > > > The LPC2294-Example from the Olimex-Web-page also works without > > > > problems, compiled by an IAR-Comiler. > > > > > > > > Has anyone an idea ??? > > > > > > The startup code sets up stacks etc. You need to make sure that > > > the startup code and the linker script has a memory map that > > > is consistent with your device. > > > > > > Dave > > > > Thanks Dave, > > > > i use different linker-scripts for 2106 and 2194, the startup-code > is > > the same. IMO the LPC2294 should work with the same linker-script > as > > LPC2194, or are there some more differences between these two > > devices ??? > > > > Is there anybody who can show me a working gcc project on > > LPC2294 ??? > > > > Thanks, > > > > Peter > > > Hello, > > i think i got it work!!! The problem was, that the Boot0 and Boot1 > pin at LPC2294 were connected to ground, so the examples and linker- > scripts, designed for internal flash memory, couldn't start. > > Thanks, > > Peter Hi Peter, Im trying to make a simple led flasher working on my board using GCC & a 2292, but anything I try, it does not work. The board and led flasher code as been validated with crossstudio and are working properly but I am unable to make it work with only GCC and a makefile. The problem seems to be either in the startup code or the linker script. Would that be possible to take a peek at your linker script and startup code? Are you able to make an interruption work with it? To facilitate my work, I really need to get my code to compile with gnu environment. Thanks, Jean-Francois
2005-08-29 by mahlerweb
--- In lpc2000@yahoogroups.com, "jf_richard69" <jf.richard@r...>
wrote:
> --- In lpc2000@yahoogroups.com, "mahlerweb" <peter.mahler@w...>
wrote:
> > --- In lpc2000@yahoogroups.com, "mahlerweb" <peter.mahler@w...>
wrote:
> > > --- In lpc2000@yahoogroups.com, "David Hawkins" <dwh@o...>
wrote:
> > > >
> > > >
> > > > > since friday, i try to make some simple examples work on a
> > > LC2294,
> > > > > (Olimex LPC-E2294) The examples work fine on a LPC2106 and
a
> > 2194.
> > > > > The LPC2294-Example from the Olimex-Web-page also works
without
> > > > > problems, compiled by an IAR-Comiler.
> > > > >
> > > > > Has anyone an idea ???
> > > >
> > > > The startup code sets up stacks etc. You need to make sure
that
> > > > the startup code and the linker script has a memory map that
> > > > is consistent with your device.
> > > >
> > > > Dave
> > >
> > > Thanks Dave,
> > >
> > > i use different linker-scripts for 2106 and 2194, the startup-
code
> > is
> > > the same. IMO the LPC2294 should work with the same linker-
script
> > as
> > > LPC2194, or are there some more differences between these two
> > > devices ???
> > >
> > > Is there anybody who can show me a working gcc project on
> > > LPC2294 ???
> > >
> > > Thanks,
> > >
> > > Peter
> >
> >
> > Hello,
> >
> > i think i got it work!!! The problem was, that the Boot0 and
Boot1
> > pin at LPC2294 were connected to ground, so the examples and
linker-
> > scripts, designed for internal flash memory, couldn't start.
> >
> > Thanks,
> >
> > Peter
>
> Hi Peter,
>
> Im trying to make a simple led flasher working on my board using
GCC &
> a 2292, but anything I try, it does not work. The board and led
> flasher code as been validated with crossstudio and are working
> properly but I am unable to make it work with only GCC and a
makefile.
> The problem seems to be either in the startup code or the linker
script.
>
> Would that be possible to take a peek at your linker script and
> startup code? Are you able to make an interruption work with it?
>
> To facilitate my work, I really need to get my code to compile with
> gnu environment.
>
> Thanks,
>
> Jean-Francois
Hi Jean-Francios,
sorry for the late answer, but i was out for several days.
I use the startup-code and linker-script from the freeRTOS-
ARM7_LPC2106_GCC Example and modified the linker script from the 2106-
rom (....i do my work always in rom ...)
main changes (extram and extflash are only used in my project) :
__ram_size__ = 16K;
MEMORY
{
flash : ORIGIN = 0, LENGTH = 120K
ram : ORIGIN = 0x40000000, LENGTH = 16K
extflash : ORIGIN = 0x80000000, LENGTH = 0x80000
extram : ORIGIN = 0x81000000, LENGTH = 0x100000
}
__ram_size__ = 16K;
MEMORY
{
flash : ORIGIN = 0, LENGTH = 120K
ram : ORIGIN = 0x40000000, LENGTH = 16K
extflash : ORIGIN = 0x80000000, LENGTH = 0x80000
extram : ORIGIN = 0x81000000, LENGTH = 0x100000
}
__STACK_SIZE_FIQ__ = 0x100;
__STACK_SIZE_IRQ__ = 0x100;
__STACK_SIZE_SUPERVISOR__ = 0x4;
__STACK_SIZE_ABORT__ = 0x4;
__STACK_SIZE_UNDEFINED__ = 0x4;
__stack_end__ = 0x40000000 + __ram_size__ - 4 - __STACK_SIZE_FIQ__ -
__STACK_SIZE_IRQ__ - __STACK_SIZE_SUPERVISOR__ -
__STACK_SIZE_ABORT__ -
__STACK_SIZE_UNDEFINED__;
__stack_end_undefined__ = 0x40000000 + __ram_size__ - 4 -
__STACK_SIZE_FIQ__ -
__STACK_SIZE_IRQ__ - __STACK_SIZE_SUPERVISOR__ -
__STACK_SIZE_ABORT__;
__stack_end_abort__ = 0x40000000 + __ram_size__ - 4 -
__STACK_SIZE_FIQ__ -
__STACK_SIZE_IRQ__ - __STACK_SIZE_SUPERVISOR__;
__stack_end_supervisor__ = 0x40000000 + __ram_size__ - 4 -
__STACK_SIZE_FIQ__ -
__STACK_SIZE_IRQ__;
__stack_end_irq__ = 0x40000000 + __ram_size__ - 4 -
__STACK_SIZE_FIQ__;
__stack_end_fiq__ = 0x40000000 + __ram_size__ - 4;2006-01-12 by Jonas Diemer
Hi! We are using an LPC-E2294 board from olimex, that has a 1MB external SRAM onboard. We've got the gcc working, but only with the internal mem so far. How can I use the external RAM? If my understanding is correct, I have to do the following steps: 1. Set up the LPC2294s EMC so it knows how to talk to the SRAM. Do I do that in the startup.s? 2. Set up the additional RAM in the lpc2294-RAM.ld (my linker-script). Maybe someone has done the exact same thing already and can post me instructions/source code. I'm thankful for any hint :-) Regards, Jonas
2006-01-12 by Jonas Diemer
Hi! We are using an LPC-E2294 board from olimex, that has a 1MB external SRAM onboard. We've got the gcc working, but only with the internal mem so far. How can I use the external RAM? If my understanding is correct, I have to do the following steps: 1. Set up the LPC2294s EMC so it knows how to talk to the SRAM. Do I do that in the startup.s? 2. Set up the additional RAM in the lpc2294-RAM.ld (my linker-script). Maybe someone has done the exact same thing already and can post me instructions/source code. I'm thankful for any hint :-) Regards, Jonas PS: Sorry for the double post. My first one accidentally became a reply to some other message.