VCE Y channel update

http://www.pcedev.net/pcetech/vce/luma_scale_capture.png

I got my turborom board working along with my usb rom programmer. Only 128k at the moment, but it’s better than nothing. Once I get a par port option setup again, I can start using the tototek card for larger rom tests.

Anyway, I did what I said previously. I cut the R-Y and B-Y traces from the composite build circuit. So nothing but Y is being output. Which is different than just turning off the CB in bit 7 of the VCE. That would give you a bias to the Luma chart because R-Y and B-Y are still there.

So, this is a pure look at the Luma stepping from the VCE rgb to yuv rom table inside the chip. There are a total of 32 luma levels. Can you spot them all? 😀

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: