2 Replies Latest reply on Aug 18, 2017 3:02 PM by kelvin.xu_1593951

    UVC_AN75779 fails to work after I change the data-width to 32-bits.

    kelvin.xu_1593951

      Hi Cypress, 

         

      I am experimenting with FX3 application note AN75779. 

         

      I use FPGA to replace the image sensor and removed all sensor related I2C transactions in FX3 firmware. 

         

      The FPGA generates 32-bit data and follows the FV/LV protocol in AN75779. With original fx3_uvc.cydsn I could stream in the LSB of my data. 

         

       

         

      To adjust for the data width I changed that to 32 bit in fx3_uvc.cydsn. I also changed step size in LD_ADDR_COUNT & LD_DATA_COUNT to 4. 

         

      It failed to work after that change. 

         

      What should I do now? 

         

      Thank you!