Surveyor Robotics Journal

Surveyor Robotics Journal

	email: support@surveyor.com web: Surveyor Corporation rss: Subscribe Archives August 2010 July 2010 June 2010 May 2010 April 2010 March 2010 February 2010 January 2010 December 2009 November 2009 October 2009 September 2009 August 2009 July 2009 June 2009 May 2009 April 2009 March 2009 February 2009 January 2009 December 2008 November 2008 October 2008 September 2008 August 2008 September 2008 August 2008 July 2008 June 2008 May 2008 April 2008 March 2008 February 2008 January 2008 December 2007 November 2007 October 2007 September 2007 August 2007 July 2007 June 2007 May 2007 April 2007 March 2007 February 2007 January 2007 December 2006 November 2006 October 2006 September 2006 August 2006 July 2006 June 2006 May 2006 April 2006 March 2006 Februray 2006 January 2006	Fri, 17 Aug 2007 Blackfin BF537 processor/camera ... another update Port H GPIO is fine - some of our other initialization code was clobbering i/o port setup. Also, we have tested the processor card with a different camera (Omnivision OV9620), and it works perfectly, so we have verified that the camera interface on the processor board is good. As mentioned earlier, it looks like we have a timing configuration issue with the OV9655, so we'll try to track that down. There are a few other i/o lines left to test (UART1, Timer 2 and Timer 3), but everything else on the processor card has checked out positive. This has been a good week ... Posted Fri, 17 Aug 2007 14:30 \| HTML Link \| see additional stories ... Blackfin BF537 processor/camera update Some good news - u-boot is running, so we will get started on the uClinux port shortly. Also, I2C and SPI flash are working properly. Remaining issues - we don't seem to be able to initialize the Port H GPIO signals, though we seem to be using the right commands. The BF537 uses Port H for GPIO or Ethernet, and our theory is that the Ethernet function isn't releasing the pins, but we are getting help from Analog Devices to track this down. Also, we still haven't figured out the timing issues on video capture. When the board first starts up, we get pictures like this: but after a while, sync seems to get lost and the pictures look like this: Now that we have I2C, we can access the camera controls. There are a lot of timing variables, so we're on it. Posted Fri, 17 Aug 2007 14:25 \| HTML Link \| see additional stories ...