FPGAWorkshopNick: Difference between revisions
From HacDC Wiki
(Created page with 'Video scaler with VGA output To start off simple, the design will implement a dual frame buffer to display a lower resolution video image within a higher resolution output frame…') |
No edit summary |
||
| Line 1: | Line 1: | ||
Video scaler with VGA output | '''Video scaler with VGA output''' | ||
To start off simple | To reduce the high likelihood of this project ending in undebuggable disaster, I plan to start off with simple goals and add complexity to the code and input/output circuitry incrementally. | ||
1: Generate a simple 640x480 VGA test pattern with all timing and sync signals controlled by the FPGA. | |||
2: Add a 24-bit color gradient to the test pattern with the addition of a THS8134B video DAC on the output. | |||
3: Create a dual framebuffer in the devboard's SRAM. | |||
4: Use the framebuffer to display low resolution (<640x480) 24-bit digital video input within a 640x480 output frame without scaling. | |||
5: Attempt to implement scaling algorithms to scale the input resolution to fill the full frame of the output resolution. | |||
If I can manage to get this far, I will add additional objectives. Eventually I would like to build a deinterlacer/scaler for interlaced RGB video. | |||
Revision as of 01:49, 18 December 2009
Video scaler with VGA output
To reduce the high likelihood of this project ending in undebuggable disaster, I plan to start off with simple goals and add complexity to the code and input/output circuitry incrementally.
1: Generate a simple 640x480 VGA test pattern with all timing and sync signals controlled by the FPGA.
2: Add a 24-bit color gradient to the test pattern with the addition of a THS8134B video DAC on the output.
3: Create a dual framebuffer in the devboard's SRAM.
4: Use the framebuffer to display low resolution (<640x480) 24-bit digital video input within a 640x480 output frame without scaling.
5: Attempt to implement scaling algorithms to scale the input resolution to fill the full frame of the output resolution.
If I can manage to get this far, I will add additional objectives. Eventually I would like to build a deinterlacer/scaler for interlaced RGB video.