Thank you ALL for the replies. No, I have NOT initialized the SDRAM controller? How can I do that? Or where can I find out more details or any samples/tutorials? Thanks
> On Tue, 03 Apr 2012 08:23:42 +0200 > [email protected] wrote: > > > In my a Linux based device there are CPU( yes, it is MIPS) and BIOS and > > SDRAM modules. > > If I have BIOS chip in that device, I can easily write to SDRAM and I read > > the same value I wrote. > > But if I remove BIOS I can not read the same values that should have been > > written. > > ( Yes, MIPS CPU is in debug mode as well) > > > > I thought that JTAG depends on working CPU only but NOT on BIOS. > > Is that so ? > > Or BIOS can prevent/mask the values coming to/from SDRAM? > > Thanks > > Have you initialized the SDRAM controller? The BIOS (or boot loader, etc) > initializes lots of CPU internal hardware. In the least you have to ensure > that you initialize the memory controllers and the I/O pins correctly. > > Attila Kinali > > -- > The trouble with you, Shev, is you don't say anything until you've saved > up a whole truckload of damned heavy brick arguments and then you dump > them all out and never look at the bleeding body mangled beneath the heap > -- Tirin, The Dispossessed, U. Le Guin ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
