help required urgently to convert composite to RGB signals.using cpld or fpga.
Any core available or info which i can read about it.?
Thanks and much appreciated
As fas as I known, What we can do in FPGA is the conversion from YUV to RGB format. So, you need Video decoder chip to decode analog signal to digital YUV data.
Difinetly you can convert composit into analog RGB using A/D and D/A as the analog interface and the FPGA do the required processing on the digitized samples. you can find the equations that relates RGB, YUV, and CVBS in "video demistified book" or any book deal with digital video.
What is the resolution required of the ADC (and the DAC) and the bandwidth? Would it be possible to change the colors, constrast, etc of the image and quickly dump it back?
Does anyone know methods (or reference designs) of doing the opposite, i.e. RGB to NTSC through an FPGA.
TVP5150 from TI accepts composite and svhs and spits out 8 bit 4:2:2 YcbCr and discrete syncs; it's cheap; and all you need to do is a 3x3 matrix multiplication to get RGB; xilinx has app note
Hi
on a standalone fpga u can not do it. for that u need some more supported ics which will be ur interfaces for the analog signals. with fpga u can make the transformations
hi
Y dont u use video decode and video encoder IC dirctly which are avilable in the market and also not expansive dirctly. i think that would be the best solution. Analog devices and Philips r having a range and variety of products that can solve ur purpose.