EDK service packs?

Hello,

I use a Virtex II Pro Development board (2VP7 - FG456 Rev 3) with XPS and ISE version 6.2.03. Since I use OCM memory instead of PLB or OPB memory , the malloc functions doesn't work anymore (the program write it on SDRAM memory instead of D-OCM). Also, I don't understand where are exactly the stack, heap and data zone ? (in spite of the LinkerScript file).

Does someone have the same problem as me or know why?

Best Regards

Pierre

Hello,

I use a Virtex II Pro Development board (2VP7 - FG456 Rev 3) with XPS and ISE version 6.2.03. Since I use OCM memory instead of PLB or OPB memory , the malloc functions doesn't work anymore (the program write it on SDRAM memory instead of D-OCM). Also, I don't understand where are exactly the stack, heap and data zone ? (in spite of the LinkerScript file).

Does someone have the same problem as me or know why?

Best Regards

Pierre

We compile newlib with -mrelocatable-lib option. This produces code that contains pointers stored in the .text, instead of the .data. Since, reading from the OCM on Virtex 2P is not supported, such code will not work. malloc is one of our library routines that will fail. This is a known limitation. Please move such library routines into other readable memories. Then your code will work.

thanks,

netpit wrote:

You can get Service Packs a

As you said "this is a known limitation", can you tell me where this is written in the documentation ? (I knew the IOCM is a 32-bit write only port for the Virtex II Pro but I didn't read anything about relocation).

thanks

Pierre

Hello Vasanth,

About the malloc function, as you said "this is a known limitation", can you tell me where this is written in the documentation ? (I knew the IOCM is a 32-bit write only port for the Virtex II Pro but I didn't read anything about relocation). thanks again Pierre

(XPS & ISE v6.02)