Camera link specification
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From: ivan@gmail.com on 23 Oct 2006 13:02 Hi All, I have a project to get the image data by camera and want to convert them as grayscale information. The camera has Camera Link output. It can be connected directly to universal frame grabber. I am trying to replace the frame grabber by FPGA. Does somebody know or has information how to get camera link specification ? The document which I found mostly only dealed with the pin configuration and didn't tell how to obtain the image pixel. I plan to use DS90CR288A to convert from LVDS to parallel. After that I don't know what should I do with parallel signal. Thanks in advance, -ivan
From: Slurp on 23 Oct 2006 13:10 "ivan(a)gmail.com" <ivanlimansyah(a)gmail.com> wrote in message news:1161622951.384907.99930(a)m73g2000cwd.googlegroups.com... > Hi All, > > I have a project to get the image data by camera and want to convert > them as grayscale information. The camera has Camera Link output. It > can be connected directly to universal frame grabber. I am trying to > replace the frame grabber by FPGA. Does somebody know or has > information how to get camera link specification ? > > The document which I found mostly only dealed with the pin > configuration and didn't tell how to obtain the image pixel. I plan to > use DS90CR288A to convert from LVDS to parallel. After that I don't > know what should I do with parallel signal. > > > Thanks in advance, > > -ivan > The standard document is available from many camera manufacturers including: http://www.alacron.com/downloads/vncl98076xz/CameraLink20v113.pdf which tells you everything you need to know. Slurp
From: Gabor on 23 Oct 2006 13:15 Try: http://www.alacron.com/downloads/vncl98076xz/CameraLink20v113.pdf There is a section in appendix C which shows how to hook up the bits for various configurations. Note that "Camera Link" is not a single image format standard, so it's best to get the information you need directly from the camera provider. HTH, Gabor ivan(a)gmail.com wrote: > Hi All, > > I have a project to get the image data by camera and want to convert > them as grayscale information. The camera has Camera Link output. It > can be connected directly to universal frame grabber. I am trying to > replace the frame grabber by FPGA. Does somebody know or has > information how to get camera link specification ? > > The document which I found mostly only dealed with the pin > configuration and didn't tell how to obtain the image pixel. I plan to > use DS90CR288A to convert from LVDS to parallel. After that I don't > know what should I do with parallel signal. > > > Thanks in advance, > > -ivan
From: Brad Smallridge on 24 Oct 2006 02:05 > The document which I found mostly only dealed with the pin > configuration and didn't tell how to obtain the image pixel. I plan to > use DS90CR288A to convert from LVDS to parallel. After that I don't > know what should I do with parallel signal. After you use that chip, the data should be available on certain lines, if it's a "base" configuration: camdat:process(clk) begin if( clk'event and clk='1') then -- eight bit output camdat_out(0) <= '0'; camdat_out(1) <= cam_in(0); camdat_out(2) <= cam_in(1); camdat_out(3) <= cam_in(2); camdat_out(4) <= cam_in(3); camdat_out(5) <= cam_in(4); camdat_out(6) <= cam_in(6); camdat_out(7) <= cam_in(27); camdat_out(8) <= cam_in(5); -- twelve bit output -- camdat_out(0) <= cam_in(3); -- camdat_out(1) <= cam_in(4); -- camdat_out(2) <= cam_in(6); -- camdat_out(3) <= cam_in(27); -- camdat_out(4) <= cam_in(5); -- camdat_out(5) <= cam_in(7); -- camdat_out(6) <= cam_in(8); -- camdat_out(7) <= cam_in(9); -- camdat_out(8) <= cam_in(12); -- testoutput -- camdat_out <= cam_col_count; end if; end process; You didn't say what language or chip you are using. Brad Smallridge aivision
From: Guru on 24 Oct 2006 04:11
Why do you want to use a separate chip for LVDS to paralell? Is the frequency too high? Spartan3 (or other) has LVDS integrated in IOB. Cheers, Guru ivan(a)gmail.com wrote: > Hi All, > > I have a project to get the image data by camera and want to convert > them as grayscale information. The camera has Camera Link output. It > can be connected directly to universal frame grabber. I am trying to > replace the frame grabber by FPGA. Does somebody know or has > information how to get camera link specification ? > > The document which I found mostly only dealed with the pin > configuration and didn't tell how to obtain the image pixel. I plan to > use DS90CR288A to convert from LVDS to parallel. After that I don't > know what should I do with parallel signal. > > > Thanks in advance, > > -ivan |