6 Replies Latest reply on Jul 21, 2020 6:19 PM by YiZ_31

    CX3 no FV,LV output,Please help to check the CX3 MIPI configuration.

    OpKa_1922276

      Hi Cypress Experts:

       

      I am trying connect camera with ISP to CX3, but no image output.

      The ISP output MIPI setting as below:

       

       

      The CX3 configuration as below:

       

      Could you please help to check whether there is anywhere un-reasonable?

       

      Here is the log:

      ======================================================================

      bRType = 0x81, bRequest = 0x0, wValue = 0x0, wIndex = 0x0, wLength= 0x2

      bRType = 0x1, bRequest = 0x3, wValue = 0x0, wIndex = 0x100, wLength= 0x0

      StpCB:In SET_FTR 0::1

      bRType = 0x1, bRequest = 0x3, wValue = 0x0, wIndex = 0x0, wLength= 0x0

      StpCB:In SET_FTR 0::1

      bRType = 0x1, bRequest = 0x3, wValue = 0x0, wIndex = 0x100, wLength= 0x0

      StpCB:In SET_FTR 0::1

      bRType = 0x1, bRequest = 0x3, wValue = 0x0, wIndex = 0x0, wLength= 0x0

      StpCB:In SET_FTR 0::1

      bRType = 0x1, bRequest = 0x3, wValue = 0x0, wIndex = 0x100, wLength= 0x0

      StpCB:In SET_FTR 0::1

      AppInit:GpifSMStart passed

      Sensor Initialization

      EnterSuspendMode Status =  0x0, Wakeup reason = 0x8

      bRType = 0x1, bRequest = 0x3, wValue = 0x0, wIndex = 0x0, wLength= 0x0

      StpCB:In SET_FTR 0::1

      bRType = 0xA1, bRequest = 0x81, wValue = 0x100, wIndex = 0x1, wLength= 0x22

      bRType = 0x21, bRequest = 0x1, wValue = 0x100, wIndex = 0x1, wLength= 0x22

      bRType = 0xA1, bRequest = 0x81, wValue = 0x100, wIndex = 0x1, wLength= 0x22

      bRType = 0xA1, bRequest = 0x83, wValue = 0x100, wIndex = 0x1, wLength= 0x22

      bRType = 0xA1, bRequest = 0x82, wValue = 0x100, wIndex = 0x1, wLength= 0x22

      bRType = 0x21, bRequest = 0x1, wValue = 0x200, wIndex = 0x1, wLength= 0x22

      AplnStrt:SMState = 0x2

      =======================================================================

      Thanks

        • 1. Re: CX3 no FV,LV output,Please help to check the CX3 MIPI configuration.
          YiZ_31

          Hi,

           

          Can you confirm whether your ISP is working in continous clock mode or gate mode? If it is in continous clock mode, can you switch it to gate mode and try again?

           

          Regards,
          Eddie

          • 2. Re: CX3 no FV,LV output,Please help to check the CX3 MIPI configuration.
            OpKa_1922276

            Hi Eddie and Cypress Expert;

             

            Thanks for your reply,

            I can get frame by changed the reset setting.

            Now I have another issue, the camera input is 30fps, but CX3 output only 15fps.

            Here is the probe wave of Hsync and Fsync:

             

            And the log as below:

            TimeDiff = 2012 ms FPS = 14

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2731 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2732 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2733 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2734 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2735 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2736 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2737 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2738 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2739 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2740 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2741 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2742 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2743 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2744 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2745 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2746 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2747 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2748 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2749 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2750 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2751 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2752 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2753 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2754 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2755 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2756 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2757 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2758 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2759 Frm_Sz = 4147200 B

            0 0 0 0 0 0 0 0 0

            Prod = 112 Cons = 112  Prtl_Sz = 23808 Frm_Cnt = 2760 Frm_Sz = 4147200 B

            TimeDiff = 2012 ms FPS = 14

            0 0 0 0 0 0 0 0 0

             

            Could you please kindly help to check the issue?

            Thanks

            • 4. Re: CX3 no FV,LV output,Please help to check the CX3 MIPI configuration.
              YiZ_31

              Hi,

               

              This issue is casued by the interval between two Vsync pluse is too short. You can try to increase that interval.

              Regards,
              Eddie

               

               

              • 5. Re: CX3 no FV,LV output,Please help to check the CX3 MIPI configuration.
                OpKa_1922276

                Hi Yiz:

                 

                Thanks a lot for your reply.

                Could you please educate me more about how to fix this?

                Increase the Vsync blanking of CX3 MIPI? Or Increase the V-blanking of sensor input to CX3 ?

                 

                Thanks

                • 6. Re: CX3 no FV,LV output,Please help to check the CX3 MIPI configuration.
                  YiZ_31

                  Hi,

                   

                  Please increase the minimum vertical blanking period of sensor so that CX3 has enough time to wrapup the last buffer of a frame partially full.

                   

                  Regards,

                  Eddie