Re: [ECOS] Problem in modify ecos for EDB7312

[Peihong Li <liphhz at yahoo dot com>]

Thx, Dan
I have setup the registers for SDRAM -
SDCONF(@0x80002300)=0x00000522 and
SDRFPR(@80002340)=0x00000102.
Is there anything else for SDRAM init?

Peihong Li

> ----- Original Message ----- 
> From: "Dan Conti" <danc@iobjects.com>
> To: <ecos-discuss@sources.redhat.com>
> Sent: Wednesday, September 05, 2001 2:16 AM
> Subject: RE: [ECOS] Problem in modify ecos for
> EDB7312
> 
> 
> Are you initializing the sdram controller? You can't
> use the on board
> sdram until you do, and chances are gdb wont load at
> all until sdram is
> available.
> 
> > -----Original Message-----
> > From: Peihong Li [mailto:liphhz@yahoo.com]
> > Sent: Monday, September 03, 2001 10:56 AM
> > To: ecos-discuss@sources.redhat.com
> > Subject: [ECOS] Problem in modify ecos for EDB7312
> > 
> > 
> > All,
> > I am trying to modify ecos V1.3 (based on the
> > edb7212's) for my edb7312. What I have done on
> > hal_platform_setup.h is as follow:
> >  
> > ......
> >  #define INIT_MEMORY_CONFIG         \
> >  /* Initialize memory configuration  ;\
> >  ldr r1,=MEMCFG1            ;\
> >  //*** ldr r2,=0x8200A080         ;\
> >  ldr r2,=0x1f101710 ;\
> >  str r2,[r1]                 ;\
> >  ldr r1,=MEMCFG2             ;\
> >  //*** ldr r2,=0xFEFC0000     ;\
> >  ldr r2,=0x00001f13     ;\
> >  str r2,[r1]            ;\
> >  //*** ldr r1,=DRFPR          ;\
> >  //*** ldr r2,=0x81 /*DRAM refresh=64KHz */  
>    ;\
> >  //*** strb r2,[r1] ;\
> >  ldr r1,=0x80002300 ;\
> >  ldr r2,=0x00000522 ;\
> >  str r2,[r1] ;\
> >  ldr r1,=0x80002340 ;\
> >  ldr r2,=0x00000240 ;\
> >  str r2,[r1]
> >  #endif
> > ......
> > 
> > But it still cannot connect with arm-elf-gdb. Who
> can
> > tell me why?
> > 
> > Thanks,
> > 
> > Peihong Li


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