test app

[Vanalme Filip]

> -----Original Message-----
> From: Sascha Hauer [mailto:s.hauer at pengutronix.de]
> Sent: dinsdag 8 maart 2011 12:43
> To: Vanalme Filip
> Cc: Baruch Siach; barebox at lists.infradead.org
> Subject: Re: test app
> 
> On Tue, Mar 08, 2011 at 11:09:57AM +0100, Vanalme Filip wrote:
> > > -----Original Message-----
> > > From: barebox-bounces at lists.infradead.org [mailto:barebox-
> > > bounces at lists.infradead.org] On Behalf Of Vanalme Filip
> > > Sent: dinsdag 8 maart 2011 9:13
> > > To: Baruch Siach
> > > Cc: barebox at lists.infradead.org
> > > Subject: RE: test app
> > >
> > > Thank you Baruch ! Good starting point for my test app.
> > >
> > > > -----Original Message-----
> > > > From: Baruch Siach [mailto:baruch at tkos.co.il]
> > > > Sent: dinsdag 8 maart 2011 6:40
> > > > To: Vanalme Filip
> > > > Cc: barebox at lists.infradead.org
> > > > Subject: Re: test app
> > > >
> > > > Hi Vanalme,
> > > >
> > > > On Mon, Mar 07, 2011 at 02:05:32PM +0100, Vanalme Filip wrote:
> > > > > We would like to have a kind of small test application, that can be
> > > > > started from the barebox prompt, to do some basic tests on some hardware
> > > > components.
> > > > > What's the best way to do that ? E.g. can I add that test application
> > > > > to the environment and would this be good practice ? Or do I better
> > > > > extend the barebox commands with my own command to start the tests ?
> > > > > Maybe there's an example on how to do it ?
> > > >
> > > > I'm using the attached program to do a simple RAM read/write test on i.MX25.
> > > > This program runs on bare hardware from the internal chip SRAM, and
> doesn't
> > > rely
> > > > on the Barebox run-time code.  I only use Barebox to start this program.
> > > >
> > > > The program is built with the following Makefile rules:
> > > >
> > > > all: ramtest.bin
> > > >
> > > > %.bin: %.elf
> > > >     ${OBJCOPY} -O binary $^ $@
> > > >
> > > > ramtest.elf: ramtest.c
> > > >     ${CC} -Wall -Os -nostdlib $^ -o $@ -Wl,-Ttext=0x78000000
> > > >
> > > > Running this program from the Barebox prompt:
> > > >
> > > > cp ramtest.bin /dev/sram0
> > > > go /dev/sram0
> > > >
> > > > I hope this helps.
> > > >
> > > > baruch
> > > >
> >
> > [Filip]
> >
> > As a start, I just took over your Makefile and a minimal source file :
> >
> > __asm__ (".text\n"
> >         ".globl _start\n"
> >         "_start:\n"
> >         "ldr    sp, =0xA7E00000\n"
> >         "bl     main\n"
> >         "stop:\n"
> >         "b      stop\n"
> >         );
> >
> > int main (int argc, char *argv[])
> > {
> > 	return 0;
> > }
> >
> > I think I might still miss something because the assembler part gives me errors
> e.g.
> > 	" Error: no such instruction: 'ldr sp,=0xA7E00000' "
> > 	" Error: no such instruction: 'bl main' "
> > 	" Error: no such instruction: 'b stop' "
> 
> Just a guess, did you set $CC to your cross compiler?

[Filip] 

Of course.....How could I have missed that... shame...Think I badly need a holiday one of these days... ;-)
Thanks anyway
> 
> Sascha
> 
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