[Open-graphics] Re: Please help: Video controller: Synthesis warnings that should be fixed

[Timothy Normand Miller]

Most of these warnings turned out to be noting.  But SOMETHING is
wrong, because tons of logic is getting ripped out.  I'm not sure if
it's simply signals not connected or what.  I'm going to start doing
some simulation, but I was hoping Patrick and Michael (who should be
more familiar with it) could lend me some advice.

On Fri, Jun 13, 2008 at 2:31 PM, Timothy Normand Miller
<theosib at gmail.com> wrote:
> These may be nothing, but they should be investigated:
>
>    Related source file is "../../../vid_ctl/pixel_send.v".
> WARNING:Xst:1780 - Signal <pv_del2> is never used or assigned.
> WARNING:Xst:646 - Signal <send_reload> is assigned but never used.
> WARNING:Xst:646 - Signal <deq_divider<5>> is assigned but never used.
>
>    Related source file is "../../../vid_ctl/ins_unit.v".
> WARNING:Xst:646 - Signal <ins_int<31:27>> is assigned but never used.
> WARNING:Xst:646 - Signal <ins_int<25:9>> is assigned but never used.
> WARNING:Xst:646 - Signal <ret> is assigned but never used.
>
> That <ret> one makes me nervous. I haven't looked at it, but we need
> to make sure that the RET instruction isn't broken.
>
>    Related source file is "../../../vid_ctl/vid_control.v".
> WARNING:Xst:646 - Signal <out_signals<1:0>> is assigned but never used.
> WARNING:Xst:1780 - Signal <send_flag> is never used or assigned.
> WARNING:Xst:646 - Signal <pixel_valid> is assigned but never used.
> WARNING:Xst:1780 - Signal <req_addr_dummy> is never used or assigned.
>
>    Related source file is "../vid_wrapper.v".
> WARNING:Xst:646 - Signal <req_addr_fifo<27:25>> is assigned but never used.
> WARNING:Xst:646 - Signal <pixel_x> is assigned but never used.
> WARNING:Xst:646 - Signal <pixel_y> is assigned but never used.
> WARNING:Xst:646 - Signal <req_count_fifo<11:10>> is assigned but never used.
>
>
>
> --
> Timothy Normand Miller
> http://www.cse.ohio-state.edu/~millerti
> Open Graphics Project
>



-- 
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Open Graphics Project