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Visitor fpegios
Visitor
4,749 Views
Registered: ‎10-14-2015

VGA to HDMI integration on KC705

Hello,

 

I am working my Diploma Thesis on 3D Rendering Effects using FPGA and I am facing a problem which may be known to someone.

 

I was using a Nexys4 board with VGA output and everything was good with the video output on screen. Here are the signals from top level component in Nexys.

 

entity TopLevel is
Port (
CLOCK : in STD_LOGIC;
RESET : in STD_LOGIC;

DOUT : out STD_LOGIC_VECTOR(11 downto 0);
HS : out STD_LOGIC;
VS : out STD_LOGIC
);
end TopLevel;

 

Because my implementation is huge, I took a larger Board, Kintex7 KC705 (xc7k325t). Now, I have to integrate the implementation to HDMI output because there is no VGA output here. The XDC for KC705 says that these are the output signals for HDMI.

 

OUT: HDMI_D17 - HDMI_D0, HDMI_DE, HDMI_CLK, HDMI_VSYNC, HDMI_HSYNC

IN: HDMI_INT

 

I have found a possible solution here http://hamsterworks.co.nz/mediawiki/index.php/Zedboard_HDMI_v2 and integrated for KC705, but I have no output on screen.

 

Could you plesase help me to in order to have output on screen or attach me a test project? After seeing an image on screen, then my life will be easier to continue my thesis project, as I have already implemented the whole 3D Rendering Pipeline in VHDL.I 

 

I would appreciate any respond! Thanks in advance.

 

Kind Regards,

 

--

Fotis Pegios
Senior Undergraduate Student
Department of Electronics and Computer Engineering
Technical University of Crete, Greece

Tel.: (0030) 694 464 7289
--
Fotis Pegios
Senior Undergraduate Student
Department of Electronics and Computer Engineering
Technical University of Crete, Greece

http://fpegios.blogspot.gr/
fpegios92@gmail.com
Tel.: (0030) 694 464 7289
Tags (4)
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3 Replies
Xilinx Employee
Xilinx Employee
4,746 Views
Registered: ‎07-21-2014

Re: VGA to HDMI integration on KC705

Hi,
See if this helps

http://www.xilinx.com/support/documentation/application_notes/xapp741-high-performance-video-AXI-interconnect.pdf

-Shreyas
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Visitor fpegios
Visitor
4,741 Views
Registered: ‎10-14-2015

Re: VGA to HDMI integration on KC705

Hi Shreyas,

 

Thanks for the quick answer. I do not use microblaze in my implentation. So you suggest me to use a core to transmit my signals. 

 

The HDMI_DATA signal is 18bit as the xdc refers and I have never seen such number of bits in color signal. I think I want a component which takes my CLOCK, DATA, VSYNC and HSYNC signals I had for VGA and give me outputs the HDMI_DATA(17 DOWNTO 0), HDMI_DE, HDMI_CLOCK, HDMI_VSYNC and HDMI_HSYNC signals. Or something like that?

 

--Fotis

--
Fotis Pegios
Senior Undergraduate Student
Department of Electronics and Computer Engineering
Technical University of Crete, Greece

http://fpegios.blogspot.gr/
fpegios92@gmail.com
Tel.: (0030) 694 464 7289
0 Kudos
Visitor fpegios
Visitor
4,711 Views
Registered: ‎10-14-2015

Re: VGA to HDMI integration on KC705

Is there a way to use the HDMI without a processor on KC705?

 

-Fotis

--
Fotis Pegios
Senior Undergraduate Student
Department of Electronics and Computer Engineering
Technical University of Crete, Greece

http://fpegios.blogspot.gr/
fpegios92@gmail.com
Tel.: (0030) 694 464 7289
0 Kudos