USB superspeed peripherals Forum Discussions

Hi I have a usb device  which starts with bInterval - 0, so a 125uS report interval. I want to change this to bInterval = 3 so a 1000uS report interval during the operation of the device. How is this done? does the configuration descriptor need to be resent or is it possible to do with cy api?

Hi Members!!

My customer is planning a USB camera. purpose is home security.

Customer's rough target spec is 3M sensor with 30 frame. but you know CX3 can't support 3M w/ 30 frame

As the design is very beginning stage, and they don't have much information,

Customer is wanting us to provide sensor list that are working fine with CX3.

and also they want to know what are the common frame rate with those sensors.

Your advise will be great help for them to fix the design concept.

Thank you in advance!!

Thanks.

Heather Yu.

My TOF camera works well with CX3(CYS3065) on PC. But in embedded system it does not work well, reporting DMA_RESET_EVENT.And I study the problem,finding that   CyU3PDmaMultiChannelCommitBuffer() report error CY_U3P_ERROR_INVALID_SEQUENCE. I know the reason is that the host consumes the data at a lower speed than the producer. So I want to increase the DMA buffer size. 

dmaCfg.size                 = CX3_UVC_STREAM_BUF_SIZE;      //0x8FD0

    dmaCfg.count                = CX3_UVC_STREAM_BUF_COUNT;   //3

    dmaCfg.validSckCount        = CX3_UVC_SOCKET_COUNT;

    dmaCfg.prodSckId[0]         = CX3_PRODUCER_PPORT_SOCKET_0;

    dmaCfg.prodSckId[1]         = CX3_PRODUCER_PPORT_SOCKET_1;

    dmaCfg.consSckId[0]         = CX3_EP_VIDEO_CONS_SOCKET;

    dmaCfg.dmaMode              = CY_U3P_DMA_MODE_BYTE;

    dmaCfg.notification         = CY_U3P_DMA_CB_PROD_EVENT | CY_U3P_DMA_CB_CONS_EVENT;

    dmaCfg.cb                   = CyCx3UvcAppDmaCallback;

    dmaCfg.prodHeader           = CX3_UVC_PROD_HEADER;

    dmaCfg.prodFooter           = CX3_UVC_PROD_FOOTER;

    dmaCfg.consHeader           = 0;

    dmaCfg.prodAvailCount       = 0;

    status = CyU3PDmaMultiChannelCreate (&glChHandleUVCStream,

            CY_U3P_DMA_TYPE_MANUAL_MANY_TO_ONE , &dmaCfg);

    if (status != CY_U3P_SUCCESS)

    {

        CyU3PDebugPrint (4, "\n\rAppInit:DmaMultiChannelCreate Err = 0x%x", status);

    }

I increase the CX3_UVC_STREAM_BUF_SIZE to 0x9FD0(mutiplier of 16 bytes)， firmware reports CY_U3P_ERROR_MEMORY_ERROR in CyU3PDmaMultiChannelCreate app initialization. If I increase the CX3_UVC_STREAM_BUF_COUNT to 4, also reporting the same error in initialization.

How can I do to increase the DMA buffer size?

The Hardware SPI port is not available when using 32-bit GPIF.

I understand there is a Software SPI option explained @ FX3 use of SPI and 32 bits words GPIF

Is it possible to boot the FX3 from Hardware SPI, and sometime later switch the pins to 32-bit GPIF?

If so, is it also possible to switch back to 16-bit GPIF with SPI in order to access the SPI device(s)?

Are there any examples available?

Thank you in advance for your support.

Greg

Hello,

       I want to get the point of the frame start , at the moment , I want to send one package by CPU,and then use the dma send data,how can I get it? Wherher the GPIFII state machine can be modified?

Hi All,

I have been using FX3 SDK and PSoC Creator for quite some time.  I have had issues running update manager from either the FX3 or PSoC installations.  In both cases I am told it is not installed.  So today I removed all all Cypress development software and drivers, and deleted their directories.  I reinstalled the FX3 SDK and still cannot run the update manager.  What's happening and how can I fix it?

Thanks,

Scott

請問CX3的interface configuration 的值有需要根據什麼資訊來做運算嗎?

還是只要數值在範圍內並且沒有出現error即可?

Hi,

I am using the below attached firmware before i am using it for transferring data from P-Port to U-Port which is working fine and endpoints are also enumerating properly and after that i modified firmware to work for P-Port to S0-Port after that endpoints are not enumerating.

Can you please go through the firmware and tell what might be the reason?

Regards,

Srujana.