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Message
From: Sébastien Pelletier<monsieur_mac@y...>
Date: Tue Feb 21 01:05:04 CET 2006
Subject: [oc] vga_core
No I know it is not configured the way it should be because I know the
hardware ok, I tested it, and I did know the cores is already used and
working.
So for a 640x480, i have to set the pixel clock to 25,17 Mhz, the
master clock have to be more than that, isn't it?
Here is what i send to configure the core:
(x"80000008",'1',x"5F2C0285","1111",'0'), --32 program horizontal
timing register (htim) (640 visible pixels per line)
(x"8000000c",'1',x"011D01E3","1111",'0'), -- program vertical
timing register (vtim)(480 visible lines per frame)
(x"80000010",'1',x"031F020C","1111",'0'), -- program
horizontal/vertical length register (hvlen)(800x525 pixels)
(x"80000014",'1',x"10000000","1111",'0'), -- program video base
address 0 register (VBARa)(sdram)
(x"8000001c",'1',x"10200000","1111",'0'), -- program color lookup
table (CBAR)(sram)
(x"80000000",'1',x"00000901","1111",'0'), -- program control
register (ctrl)(enable video system)
Is something wrong with this?
Thanks for your help.
Sébastien Pelletier
monsieur_mac@y...
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La sagesse, c'est croire que tout est possible!
Aux yeux du sage, rien n'est inutile.
Ce sont les tempêtes qui poussent les arbres à s'enraciner plus
profondément...
Viendra un moment où vous croirez que tout est fini. Et ce sera le
commencement...
Vivre heureux pour toujours n'est possible qu'un moment à la fois.
La réussite est dans l'effort.
Travail avec le coeur et l'esprit...
Un trésor se cache au fond de toi, alors sois émerveillé et
libère-toi!
Auteure: Manon
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Le 06-02-17, à 01:30, Richard Herveille a écrit :
Plenty of people used it, so it is working.
Did you configure it correctly?
Did you enable the core?
Richard
-----Original Message-----
From: cores-bounces@o... [mailto:cores-bounces@o...]
On
Behalf Of Sébastien Pelletier
Sent: Thursday, February 16, 2006 4:09 PM
To: cores@o...
Subject: [oc] vga_core
is someone already worked on the VHDL vga core a while ago? I try to
configure it for a basic 640*480 60Hz refresh, but the sreen do
nothing, I think i miss something, but i don't know what. If someone
want to help me, i will tell more detail on where i am for the debug.
Sorry for my english.
Sébastien Pelletier
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