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Hi,
I am wondering if there are some reference designs for implementing a frame buffer for the Linux part in the FPGA fabric of a Cyclone 5 SoC (to get e.g. an DVI output). If not: Has anybody done this? - The frame buffer itself should be easy, but how complex is the driver on Linux side? - Is there any 2D graphic acceleration (e.g. for text output) required? - Any other comments? Regards, ThomasLink Copied
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Dear Tentner,
Till now I have found only one VIP based reference design for Terasic/Arrow SoCKit (not for Altera Cyclone V SoC board, but the FPGA is the same). See the following link: http://www.rocketboards.org/foswiki/projects/sockitvideoipvipreferencedesign The above ref design is available on the terasic website after free registration. (~100 MB) I hope it will be help. regards V.Zs.- Mark as New
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Hi voroshazi,
thanks for the link. However, as I understood, the frame buffer is only accessed by the application software via some dedicated accesses. It is not a "real" frame buffer for Linux where e.g. boot messages would be displayed or x-server could be used (I should mention that my Linux knowledge is quite basic). Correct? Regards, Thomas www.entner-electronics.com - Home of EEBlaster- Mark as New
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http://www.rocketboards.org/foswiki/view/projects/sockitlinarolinuxdesktop
This page maybe be helpful- Mark as New
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This provides the integrated frame buffer with Altera's flavor of Linux and DirectFB:
http://www.rocketboards.org/foswiki/projects/directfbgraphicsonhelioviewlcd
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