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Altera_Forum
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15 years ago

video image processing: ALPHA BLENDING MIXER init

Hi, somebody knows what is exact sequence to do to control alpha blending mixer output? I tried with system console in my board : these are TCL commands: (mixer's addreass are 0x00 - 0x1ff) ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

I do not think you will find an example of using the Video IP with SystemeConsole.

The example design is a relatively simple system with a mixer controlled from a NiosII:

https://www.altera.com/support/software/download/refdesigns/broadcast/dnl-post-process.jsp.

This is the 9.1 example design and I believe the 10.0 will be published soon.

There are many reasons which could cause the mixer not to produce any output (I assume this is the issue there? Did you use SignalTap already?) and it is quite easy to create a deadlock with the core if you are not careful. As far as I can tell your startup sequence seems right so you will have to describe your system in more details to get more help.