I am configuring my image sensor with the CX3. I have already configured the register of the sensor through IIC. Now I want to start debugging with JTAG to determine whether the sensor is configured correctly and where I should start. I have no idea. I hope someone can help me.Thank you very much.

Hi, I' jay.

I was connecting my camera module to our CYUSB301x custom board.

But, It didn't connect my camera module in a UVC framework. so, I have some questions to solve this problem.

The  output sync signals of my camera module(FV, LV) generate at the same time(Rising edge timing).

AN75779 show FV, LV outputs. FV and LV don't generate at the same time in picture.

If FV and LV sync signals generate at the same time, I ask this question that CYUSB301x don't detect FV and LV sync signals.

best regards.

Below is our architecture diagram. We could got the image data from CX3 (Cyusb3064) but the fps is only 1.

We can get normal camera output, 640x480x30fps with each OV9281 and normal camera output, 1280x480x30fps from Max7366A but get abnormal camera output from Cypress CX3 with only 1fps(1280x480).

Below is camera configuration on Cypress CX3

The CX3 MIPI configuration is :

CyU3PMipicsiCfg_t cfgUvcMAX7366A =

{

     CY_U3P_CSI_DF_RAW8, /* CyU3PMipicsiDataFormat_t dataFormat */

     2, /* uint8_t numDataLanes */

     2, /* uint8_t pllPrd */

     89, /* uint16_t pllFbd */

     CY_U3P_CSI_PLL_FRS_125_250M, /* CyU3PMipicsiPllClkFrs_t pllFrs */

     CY_U3P_CSI_PLL_CLK_DIV_4, /* CyU3PMipicsiPllClkDiv_t csiRxClkDiv */

     CY_U3P_CSI_PLL_CLK_DIV_4, /* CyU3PMipicsiPllClkDiv_t parClkDiv */

     0, /* uint16_t mClkCtl */

     CY_U3P_CSI_PLL_CLK_DIV_2, /* CyU3PMipicsiPllClkDiv_t mClkRefDiv */

     1280, /* uint16_t hResolution */

     50 /* uint16_t fifoDelay */

};

I also probe the PCLK, HSYNC and VSYNC, the waveform is shown as the following

HSYNC:

HSYNC:

VSYNC:

PCLK:

From the Uart log, we also could see lots of CyU3PDmaMultiChannelCommitBuffer: code 71, the failure rate of OV9281 was 76/134 during 70 seconds.

I tried to increase the DMA buffer from 0x5FF0 to 0x8FF0 but it doesn't work (I will only get the black screen) and we have confirmed with OV and Cypress that correct "Continous mode" has been applied.

  Here is all the experiments we have performed so far. Kindly advise if there is any suggestion to fix this issue.

Appreciate!!

Rosszw Chen

Hi Cypress team,

Please suggest suitable parts similar to CYC67300 part at a higher temperature grade of -40 to +125 deg C to use in a new design.

Thanks,

Ranjith

Hi everyone, I'm sorry if my question is not for this thread. I'm working with Cypress EZ USB Suite software on different OS (Windows 7, Windows 10) and all of them have disabled GPIF button on the toolbar. GPIF II Designer works perfectly when I start it from desktop shortcut. But how can I fix GPIF toolbar button in the EZ USB Suite?

hi,

FX-3 change packet size and burst rate in ISOC module (USBIsocSourceSink)

I would like to change the packet size and the burst at the same time in the ISOC module (USBIsocSourceSink)

in the 'cyfxisosrcsink.h'  I'm changing 'CY_FX_ISO_MAXPKT' parameter from 1024 to 256.

I'm successfully program the FX3 but the device isn't enumerated.

i saw on another question that in order to chance the packet size we need to set "CY_FX_ISO_PKTS" to one. but this dont work for me as i need to send a burst.

is there any other parameter I should change in order to change packet size and burst rate at the same time?

HI Everyone,

The cyusb3014 in our board is self-powered through VBATT. The device cannot be renumerated after the usb cable reconnect while the VBATT power is kept.

I though this is caused by the firmware is running, and 3014 is not reset under this condition.

I add the following code to try solve the problem. But it didnot work. What di i do wrong?

In function SlFifoAppThread_Entry() the for loop:

void SlFifoAppThread_Entry(uint32_t input)

{  

     ......

     /* Initialize the slave FIFO application */    

     CyFxSlFifoApplnInit();   

     for (;;)   

     {        

          apiRetStatus = CyU3PGetConnectState();     //chech whether vbus is connected.

          if(apiRetStatus == CyFalse)    

               glIsDeviceRemoved = CyTrue;    

          if(apiRetStatus && glIsDeviceRemoved)     //if the vbus return to high voltage, then reset the CPU and rerun the fireware for PC enumerate.

          {   

               glIsDeviceRemoved = CyFalse;   

               CyU3PDeviceReset(CyFalse);    

          }

      }

}

I also tried the sample code in cyfxlowpowertest.c but it doesnot work. Maybe those reasons make it useless.

1. The CY_U3P_USB_EVENT_VBUS_REMOVED signal cannot be invoked by usb3.0 cable removed in

void CyFxApplnUSBEventCB (CyU3PUsbEventType_t evtype,  uint16_t  evdata).

2. The firmware cannot go into standby mode, because the peripheral blocks is not disabled with power on.

3. The suspendmode is not usefull because it need PC send cmd to cyusb3014.

4. The CY_U3P_SYS_UART_WAKEUP_SRC cannot be used because we use spi flash for 3014 boot, so the uart pin is used for SPI.

I would like to add a filter to the power pins below.

- VDD

- AVDD

- CVDDQ

Only the maximum current value is listed in the data sheet, but how much current flows per pin? I think that power domain with multiple pins carries the same amount of current. Is it correct?

I would like information to determine the constants of passive components.

Thanks,

Tetsuo

Hello!

We using cx3 and ov5460 develop a UVC device,and refclk source is 27 MHZ.We want to use it in 2592*1944,3fps (usb 2.0), We don't know how to config the mipi parameters.we need help,thanks.