Yeah in fact i'm quite sure setting the context B reducer output size registers to 640x480 will work since context A ones seem to default to 640x480 and the mt9m111 sensor is set up to use the context A settings for teh reducer registers.
On Thu, Feb 5, 2009 at 1:06 AM, Brian Johnson <[email protected]> wrote: > The height and width just specify the portion of the array to read > they shouldn't actually affect what resolution the sensor is > outputting. As far as i can tell the main issue you are having is that > the sensor is outputting a full 1280x1024 image whcih would explain > why you are getting a zoomed in upper corner of your image since the > bridge only takes a 640x1480 window ith no scaling enabled in VGA mode > meaning all you see is a small part of the larger 1280x1024 image. > > We of course want it to be giving the bridge a 640x480 I would start > looking at the reducer registers for context B whcih is what are bwing > used particularly the ones for the output size. They default on your > sensor to 1280x1024. Try changint them to be 640x480 instead and see > if it helps at all > > > On Wed, Feb 4, 2009 at 4:21 PM, Korvin <[email protected]> wrote: >> >> On Thursday 05 February 2009 03:16:52 Brian Johnson wrote: >>> I think the issue with the mt9v112 has to do with the fact that that >>> sensor has an active window of only 640x480 pixels where as the sensor >>> on your camera has an active array of 1280x1024 pixels try mosifing >>> the register writes for regissters 1-4 to adjust the size of the >>> window inparticulare you can likely get rid of the black area by >>> modifiering registers 1 and 2 whcih are the x and y start postions for >>> your window registers 3 and 4 give it the wifth and height. >> >> Right! Modifying 1 & 2 registers I removed the black spaces. >> >> Tell me please, what width&height we're dealing with? Is it an order to >> sensor >> to read only windowed part of it's matrix? Or an order to stream the video >> data at this resolution? >> >> When I set 3&4 at max res of 1280x1024 the framerate decreases to the half >> (and this is described in specs), but again, I see only part of the image >> comparing to the M setup. >> >> So I want to get the image from the whole res of sensor and then stream in in >> VGA :) >> >> >> >> > --~--~---------~--~----~------------~-------~--~----~ Lets make microdia webcams plug'n play, (currently plug'n pray) To post to this group, send email to [email protected] Visit us online https://groups.google.com/group/microdia -~----------~----~----~----~------~----~------~--~---
