foft's activity
From 12/03/2019 to 01/01/2020
12/30/2019
- 10:45 PM EclaireXL Feature #85: 720p support/1080i support
- I put in the modelines for 1080i. I need to add interlace support (different vtotal, mid line vsync etc) to the hcnt/...
- 09:11 PM EclaireXL Feature #85: 720p support/1080i support
- The scaler is looking very nice now, a few border/locations bugs to fix.
Looking at the plls, need to have: 27MHz,...
12/25/2019
- 10:31 PM EclaireXL Feature #85: 720p support/1080i support
- I implemented winscale and am debugging it!
It seems to work except I have some vertical stripes. I think this is...
12/20/2019
- 09:56 PM EclaireXL Feature #85: 720p support/1080i support
- I guess 1080i is also possible.
Want to note that for 720p60 I need to adjust the frame rate again. Was using 59.94 ... - 09:53 PM EclaireXL Feature #85: 720p support/1080i support
- All the methods seem to need a bunch of multipliers, but fortunately we have some on Cyclone V. 25 DSP blocks on A2 a...
- 09:52 PM EclaireXL Feature #85: 720p support/1080i support
- I wrote some octave scripts to try these out. Plugging mister filters in for one set and for the other set doing area...
- 09:50 PM EclaireXL Feature #85: 720p support/1080i support
- Great paper on scaling algos
- 09:43 PM EclaireXL Feature #85: 720p support/1080i support
- Experimented with filter based scaling. Going with an area based scaler for now instead.
- 09:43 PM EclaireXL Feature #85 (In Progress): 720p support/1080i support
- HDMI syncs with 74.25MHz pixel clock. Cyclone V seems surprisingly happy with 742MHz gpio outputs via DDR registers.
- 09:41 PM EclaireXL Feature #85 (In Progress): 720p support/1080i support
- Implement 720p60 and 720p50 support, with suitable scaling
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