What is specific definition of HREF, PCLK, VSYNC?

This forum is used for discussing hardware, software, and technical details of the AVRcam embedded system.

What is specific definition of HREF, PCLK, VSYNC?

Postby smartcode » Fri Sep 01, 2006 12:58 am

Hello,

I read datasheet of OV6620 carefully for finding exact meaning of HREF, PCLK, VSYNC. but I couldn't understand what are they doing while capturing image. What are they doing and how to control them?

I'm trying to capture 8-bit RGB raw data image.

thanks.
smartcode
 
Posts: 3
Joined: Thu Aug 10, 2006 7:44 am

Postby johno » Fri Sep 01, 2006 6:13 am

VSYNC is a digital output from the OV6620 that indicates when a new image is about to start being sent out on the pixel data busses.

HREF is a digital output from the OV6620 that indicates when a new line is about to start being sent out on the pixel data busses.

PCLK is a digital output pixel clock signal that indicates when there is valid pixel data on the pixel data busses.

These three signals are typical for almost any digital CMOS image sensor.
-John O
Site Admin
johno
 
Posts: 51
Joined: Thu Mar 16, 2006 2:29 pm


Return to AVRcam Embedded System

Who is online

Users browsing this forum: No registered users and 13 guests

cron