4 Replies Latest reply on Jun 27, 2012 2:19 AM by rama.sai.krishna.vakkantula

    Problem with connecting videosensor.

    gleb.levitskiy

      I write a firmware for a system based on FX3 and videosensor. I programmed GPIF as described in AN75779 and created DMA chanel for translate data to the PC. I didn't make changes in data, only translate.

         

      As described in AN75779, I define the size of DMA bufer as 16kB, and the bufer count as 4. But when I try to translate data it translate only few frames, and then translation terminated and device didn't detect by Cypress CC.

         

      I reduced the size of DMA bufer to 1kB.  Now traslate didn't terminat, but the data arrived discordantly, so i can't capture properly image.

         

      Where there is may be a problem and how solve it?