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OPB2WB wrapper + WB2OPB + Ethernet WB IP
by Unknown on Sep 22, 2005 		Not available!

Hello,

I am wrapping the Ethernet 10/1000 opencores IP with
OPB2WB fot the slave WB if and WB2OPB for the master WB.

Although the resulting design is synthesizable, the memory range for
the OPB2WB (00h-FFh) is not big enough for that core (it needs
from 0x000h to 0x7ff).

Is possible the extension?

Thanks,

Armando


At 01:11 03/06/2005 +0700, you wrote:
On Thu, 2005-06-02 at 15:42 +0200, secamiei at bigfoot.com wrote:
> I checked with Chipscope, and the transfer is acknowledged only when
> the address is in range 0x80000000 ->0x800000ff. If you change the
> address in
> EDK, and you write to that address, the transfer is not acknowledged.
> Now I am trying to build a system with 2 SPI cores (attached to the
> OPB with 2 OPB2WB wrappers). I assigned in EDK 0x80000000->0x800000ff
> to the first OPB2WB wrapper (connected to the first SPI core) and
> 0x80000100->0x800001ff. I hope the wrappers will accept those address
> ranges.
The problem is that when I ship a netlist version of this wrapper, the parameters C_BASEADDR and C_HIGHADDR get compiled in to the netlist. I honestly do not know how to work around this problem. One way would be provide a non OPB input "SELECT" which would force the address decoding outside the core, but would require another level of abstraction. If somebody could figure out how to solve this problem, I would be happy to create a new release of the OPB/WB wrapper ... Regards, rudi ============================================================= Rudolf Usselmann, ASICS World Services, http://www.asics.ws Your Partner for IP Cores, Design, Verification and Synthesis _______________________________________________ http://www.opencores.org/mailman/listinfo/cores
---------------------------------------------------------------------------------------------------------------------- Armando Astarloa Cuéllar - Universidad del Pais Vasco UPV/EHU Tecnología Electrónica Departamento de Electrónica y Telecomunicaciones Escuela Superior de Ingenieros - Email: jtpascua at bi.ehu.es Ald. de Urquijo s/n Tel.: 34 - 94 - 601 73 04 48013 BILBAO (SPAIN) Fax.: 34 - 94 - 601 42 59 URL : http://det.bi.ehu.es/~apert ----------------------------------------------------------------------------------------------------------------------
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