Hi Vanalme, On Mon, Mar 14, 2011 at 03:55:29PM +0100, Vanalme Filip wrote: > Hi, > > Would I have to change a lot if I would like to use standard libraries (e.g. > stdio for printf and sprint) in my test app ? For printf you may use a standalone implementation, and just provide a putc() routine. See the following implementations: http://www.sparetimelabs.com/tinyprintf/index.html http://www.menie.org/georges/embedded/ baruch > > -----Original Message----- > > From: barebox-bounces@xxxxxxxxxxxxxxxxxxx [mailto:barebox- > > bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Vanalme Filip > > Sent: woensdag 9 maart 2011 9:29 > > To: Baruch Siach > > Cc: barebox@xxxxxxxxxxxxxxxxxxx > > Subject: RE: test app > > > > > -----Original Message----- > > > From: Baruch Siach [mailto:baruch@xxxxxxxxxx] > > > Sent: dinsdag 8 maart 2011 19:09 > > > To: Vanalme Filip > > > Cc: barebox@xxxxxxxxxxxxxxxxxxx > > > Subject: Re: test app > > > > > > Hi Vanalme, > > > > > > On Tue, Mar 08, 2011 at 04:52:49PM +0100, Vanalme Filip wrote: > > > > Compiling and linking seems to work well now. When I dump the .elf, I see > > > > that the start address is 0xA7E00000. That's what I wanted. > > > > However, when loading the app in ram and executing it, I see that it tries to > > start > > > from 0xA0000000 (this is the base address of the RAM section) : > > > > > > > > barebox:/test tftp testapp.bin > > > > TFTP from server 10.0.48.80 ('testapp.bin' -> 'testapp.bin') > > > > > > > > barebox:/test cp testapp.bin /dev/ram0 > > > > barebox:/test go /dev/ram0 > > > > ## Starting application at 0xA0000000 ... > > > > ?¶/ÿ'.e¢Óøñ_ > > > > > > > > _øýàõÒÿ ïO > > > > ÿOÿðzþðöàþ A'}®ÿ > > > > ùý"õÿ?O¿PP¼@Y > > > > }¸m > > > > ×´ï@ïðx`G-/ > > > > > > > > > > > > Should I specify an address when executing 'go' or 'cp' ? Isn't it loading the > > app > > > always at the beginning of the RAM space, i.e. 0xA0000000 ? > > > > > > Is 0xA0000000 the beginning of you external RAM? > > > > > > [Filip] yes. > > I meanwhile adjusted Makefile and test app source code to start from address > > 0xA0000000. This seem to work well. My test app is running now. > > Because it's just a test app, I think it's OK to put it at the beginning of the external > > RAM (so at address 0xA0000000). No use in trying to move it to another region in > > the external RAM, is it ? > > > > > > > > Note that in my example I used /dev/sram0 (on-chip 128K SRAM), not /dev/ram0 > > > (external DDR2 RAM). > > > > > > baruch > > > > > > > [Filip] If I'm right (have to verify though), i.MX27 does not have any SRAM on > > board. So, I guess external RAM will be the only option. Because the test app > > resides in the external RAM, it won't be possible to test the whole RAM. But I think > > we can live with that limitation. > > > > Thanks ! > > > > Filip -- ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@xxxxxxxxxx - tel: +972.2.679.5364, http://www.tkos.co.il - _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
