USB superspeed peripherals Forum Discussions

I have the CX3 device on a Denebola board and I'm trying to make a Sony IMX219 work.

I got it working in VGA with this configuration:

CyU3PMipicsiCfg_t cfgUvcVga30NoMclk =  {

     CY_U3P_CSI_DF_RAW10,        /* dataFormat   */

     2,                            /* numDataLanes */

     1,                          /* pllPrd       */

     63,                            /* pllFbd       */

     CY_U3P_CSI_PLL_FRS_500_1000M,   /* pllFrs      */

     CY_U3P_CSI_PLL_CLK_DIV_8,      /* csiRxClkDiv  */

     CY_U3P_CSI_PLL_CLK_DIV_8,      /* parClkDiv    */

     0x00,                          /* mclkCtl      */

     CY_U3P_CSI_PLL_CLK_DIV_8,      /* mClkRefDiv   */

     640,                          /* hResolution  */

     0x0A                          /* fifoDelay    */

};

The only "problem" is that it only works when Probe and UVC are configured for 640x482, instead of 640x480, and it sends 2 black lines to host PC, but I can deal with that.

The GPIF bus is 16 bits, and the camera clock has been increased to the maximum value possible that makes it work.

With this configuration, I can easily receive ~110 fps.

Since it works with different camera clocks configurations, but the same MIPI block parameters, I guessed that the MIPI configuration shown above should work for every other resolution. After all, if I don't modify the camera clocks, the bit rate will be the same, and the CX3 MIPI block wouldn't have a problem reading it.

Therefore I changed the camera configuration to work in 720p, with the same clock configuration. And it is not working.

What do I need to change? Why do I need to change something?

I have a byte count to see how many bytes does the DMA send to the USB, and I am getting 0x1CC0E8, when I should be getting 0x1C2000.

Reading in the community, I found that CX3 firmware must be modified to work with MIPI continuous clock. Below are my MIPI signals: yellow is the clock and blue is data lane 0. Is this clock continuous?

I tried doing this when a SET_CUR request arrives from host:

status = CyU3PMipicsiReset(CY_U3P_CSI_HARD_RST);

status =  CyU3PMipicsiInit();

status = CyU3PMipicsiSetIntfParams (&cfgUvc720p60NoMclk, CyFalse);

/* Sensor configuration */

As explained in the FAQs. But the result is still the same. Am I doing this wrong? Do I have to do this?

Hello everyone,

I am a beingger of FX3

I try sample code "GPIFtoUSB" of SDK

The project would catch GPIF one time when power on and transmit by endpoint 0x81

But GPIF always keeps first state

Question is: how to update state of GPIF continually?

Thanks

I'm working with a custom camera frontend that does not follow MIPI-DPHY spec exacty on the clock lane.

The clock lane of this camera does not have HS-ZERO in its LP-HS transition.

The clock is continuous clock mode: LP-HS transition only happen once, clock does not switch back to LP between lines or frames.

Questions:

1) Can CX3 recognize this non-standard clock lane? (NXP IMX6Q SoC can recognize it)

2) How do I check the status of clock lane? (How do I know whether the clock is recognized by CX3 or not?)

    Currently I can get the camera frontend to transimit MIPI data, but I don't get the DMA callback on the CX3 side. I don't get any MIPI errors from CyU3PMipicsiGetErrors(). I'm suspecting the clock lane is not recognized by CX3. I want to confirm this. Is there a register that reports this?

3) It it possible to always run the clock lane always in HS mode?

    For NXP IMX6Q SoC, I must reset the MIPI DPHY when the clock lane is LP, then do LP-HS transition, then the SoC will recognize MIPI clock. If I reset MIPI DPHY with the clock already in HS mode, then it won't see the clock at all.

    Is it also the case for CX3?

Hello,

Image sensor is interfaced with fx2lp in slavefifo mode.image sensor configuration is 60 frames per second with 752x480 resolution.

we are modified cypress control center in order to display image.what is the frame rate that fx2lp can handle?

regadrs,

geetha.

Hello

1.when host(PC) is connected through  USB3.0 A to FX3 the host is showing "unknown device".How to rectify this problem.

2.The 3rd pin of USB3.0 A connector is showing 3.3V in addition to 5V in 1st pin after FPGA is programmed and signals and clock are given to FX3.Why is it so?.