Query for accessing 512k flash memory of RCM 3200

Hi,
 
We are using, "44MHz RCM 3200, 256K+512K SRAM, 512K flash" with 
Dynamic C 9.21.
 
At the time of compilation, it gives the error : "Out of root code 
space, try moving code to XMEM".
 
So, it can be concluded that code size is more than 256k and therfore 
it gives above mentioned error.
 
We have checked jumper setting for accessing 512k flash which is OK. 
Still it seems that we are unable to access 512k flash.
 
Please let us know how to access this 512k flash. 
 
Are there any changes required in the specific library file so that 
we can access this 512k flash? 
 
Awaiting a early reply.
	Thanks & Regards,
 
Sumeet Pawnikar
	

Root code space is the bottom 64k - you're limited by the 16bit
address
space of the rabbit processor, not the 256k flash. 

Try putting
#memmap xmem  
at the top of your code and it will probably fix your problem.

Will

> -----Original Message-----
> From: rabbit-semi@rabb... 
> [mailto:rabbit-semi@rabb...] On Behalf Of sumeet_srp
> Sent: Thursday, March 23, 2006 10:48
> To: rabbit-semi@rabb...
> Subject: [rabbit-semi] Query for accessing 512k flash memory 
> of RCM 3200
> 
> Hi,
>  
> We are using, "44MHz RCM 3200, 256K+512K SRAM, 512K flash" 
> with Dynamic C 9.21.
>  
> At the time of compilation, it gives the error : "Out of root 
> code space, try moving code to XMEM".
>  
> So, it can be concluded that code size is more than 256k and 
> therfore it gives above mentioned error.
>  
> We have checked jumper setting for accessing 512k flash which is OK. 
> Still it seems that we are unable to access 512k flash.
>  
> Please let us know how to access this 512k flash. 
>  
> Are there any changes required in the specific library file 
> so that we can access this 512k flash? 
>  
> Awaiting a early reply.
>  
>  
>  
>  
> Thanks & Regards,
>  
> Sumeet Pawnikar
> 
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
>
	

Do a search on the Rabbit web knowledge base. There are a number of ways 
to solve this problem including the #memmap xmem one already suggested.

sumeet_srp wrote:
> Hi,
>  
> We are using, "44MHz RCM 3200, 256K+512K SRAM, 512K flash"
with 
> Dynamic C 9.21.
>  
> At the time of compilation, it gives the error : "Out of root code 
> space, try moving code to XMEM".
>  
> So, it can be concluded that code size is more than 256k and therfore 
> it gives above mentioned error.
>  
> We have checked jumper setting for accessing 512k flash which is OK. 
> Still it seems that we are unable to access 512k flash.
>  
> Please let us know how to access this 512k flash. 
>  
> Are there any changes required in the specific library file so that 
> we can access this 512k flash? 
>  
> Awaiting a early reply.
>  
>  
>  
>  
> Thanks & Regards,
>  
> Sumeet Pawnikar
>
>
>
>
>
>
>
>
>  
> Yahoo! Groups Links
>
>
>
>  
>
>
>
>
>
>
	

Hi,

Thanks for reply. I got the point you want to tell.

But I am not understanding why I can only use 50% out of the physical 
memory.
RCM3200 has 512kb code memory and Dynamic C only allows 256kb only.
If it is problem of not using xmem, it would have been appear after 
64kb

usage.

Please give more help and pointers to document if you have.

Mean while I will go through #memmap xmem.

Thanks in advance.

Regards,
Sumeet.
	--- In rabbit-semi@rabb..., Scott Morris <scott.morris@...> 
wrote:
>
> Do a search on the Rabbit web knowledge base. There are a number of 
ways 
> to solve this problem including the #memmap xmem
one already 
suggested.
> 
> sumeet_srp wrote:
> > Hi,
> >  
> > We are using, "44MHz RCM 3200, 256K+512K SRAM, 512K
flash" with 
> > Dynamic C 9.21.
> >  
> > At the time of compilation, it gives the error : "Out of root 
code 
> > space, try moving code to XMEM".
> >  
> > So, it can be concluded that code size is more than 256k and 
therfore 
> > it gives above mentioned error.
> >  
> > We have checked jumper setting for accessing 512k flash which is 
OK. 
> > Still it seems that we are unable to access
512k flash.
> >  
> > Please let us know how to access this 512k flash. 
> >  
> > Are there any changes required in the specific library file so 
that 
> > we can access this 512k flash? 
> >  
> > Awaiting a early reply.
> >  
> >  
> >  
> >  
> > Thanks & Regards,
> >  
> > Sumeet Pawnikar
> >
> >
> >
> >
> >
> >
> >
> >
> >  
> > Yahoo! Groups Links
> >
> >
> >
> >  
> >
> >
> >
> >
> >
> >
>