|
Message
From: kevinlinsun@h...<kevinlinsun@h...>
Date: Tue May 4 19:09:52 CEST 2004
Subject: [openrisc] Is there something wrong when WB:RISC clock = 1:1?
Hi
Thanks for your reply.
but i just want to make WB:RISC clock = 1:1.how should i do?
best regards,
kevin
----- Original Message -----
From: Damjan Lampret<lampret@o...>
To:
Date: Mon May 3 11:59:14 CEST 2004
Subject: [openrisc] Is there something wrong when WB:RISC clock =
1:1?
> Kevin
>
> you first have to learn to read the comments in front of defines.
> or1200_defines.v says:
> //
> // Clock ratio RISC clock versus WB clock
> //
> // If you plan to run WB:RISC clock fixed to 1:1, disable
> // both defines
> //
> // For WB:RISC 1:2 or 1:1, enable OR1200_CLKDIV_2_SUPPORTED
> // and use clmode to set ratio
> //
> // For WB:RISC 1:4, 1:2 or 1:1, enable both defines and use
> // clmode to set ratio
> `define OR1200_CLKDIV_2_SUPPORTED
> //`define OR1200_CLKDIV_4_SUPPORTED
> Conclusion: for 1:4 you need to enable both defines. Why are you
> commenting
> out OR1200_CLKDIV_2_SUPPORTED??
> regards,
> Damjan
> ----- Original Message -----
> From: <kevinlinsun@h...>
> To: <openrisc@o...>
> Sent: Tuesday, April 20, 2004 6:00 AM
> Subject: [openrisc] Is there something wrong when WB:RISC clock =
> 1:1?
> > Hi
> > When i comment "`define OR1200_CLKDIV_2_SUPPORTED"
> > and "`define OR1200_CLKDIV_4_SUPPORTED" or set
> clmode_i = 2'b00,
> > the system seems to be in a wrong state.Who can tell me how to
> make
> > WB:RISC clock = 1:1?
> >
> > best regards,
> > kevin
> > _______________________________________________
> > http://www.opencores.org/mailman/listinfo/openrisc
> >
>
>
|
 |
Browse
