USB superspeed peripherals Forum Discussions

AUTO DMA U2P Xfer

Solved

Hi,I am starting a new project based on FX3 configured as slave FIFO. I have read KBA223338 plus other references as part of design preparation.Still... Show More

By azot_0

Apr 5, 2024

178

USB superspeed peripherals

UVC Input Header Descriptor size calculation with multiple formats

I am modifying my UVC descriptors to enable MJPEG streaming in addition to uncompressed but am encountering an error where the device cannot enumerate... Show More

I am modifying my UVC descriptors to enable MJPEG streaming in addition to uncompressed but am encountering an error where the device cannot enumerate. Using USB Tree View, I cannot see the specific error being encountered, only that it is not enumerating. This started occuring once I started modifying the wTotalLength field of my Class-specific VS Interface Input Header Descriptor so I think my calculation for this value is correct. My current way to calculate that value is the following:

...
VC-Specific VS Video Input Header Descriptor (size=0x0F)
    0x01 larger than with 1 format b/c 1 extra format
VS Uncompressed Format Type Descriptor (size=0x1B)
VS Uncompressed Frame Type Descriptor (size=0x1E)
VS Color Matching Descriptor Descriptor (size=0x06)
Video Streaming MJPEG Format Type Descriptor (size=0x0B)
Video Streaming MJPEG Frame Type Descriptor (size=0x1E)
VS Color Matching Descriptor Descriptor (size=0x06)
...

So I am calculating that the wTotalLength field should be 7D. Is this correct? I am not sure if the Color Matching descriptors should be included in wTotalLength field.

Thanks

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By jnagy

Mar 22, 2024

201

USB superspeed peripherals

Hardware configuration for FPGA to complete data transmission and recept...

Solved

A schematic diagram was drawn for the CYUSB3014 chip, and a PCB board was made. When using the USB interface B port to connect to the USB 3.0 interfac... Show More

By 励晨源

Apr 7, 2024

351

USB superspeed peripherals

MIPI issues with CX3 and TOF sensor, RAW12 streaming

Hello, I am trying to get the CX3 working with a Time of Flight sensor. I believe I have everything configured properly but I am not seeing any DMA bu... Show More

Hello, I am trying to get the CX3 working with a Time of Flight sensor. I believe I have everything configured properly but I am not seeing any DMA buffer call backs, or any kind of producer events triggering. I have summarized some high level information below:

FX SDK Version: 1.3.5
FW: Autogenerated FW from EZ USB Suite, configured for streaming on BULK endpoint, no UVC.
MIPI Clock type: Gated
MIPI Configuration:

H blanking and V blanking are not filled in here as they do not affect the mipi configuration output. I measured the H blank time and the V blank time directly with a scope:
- Hblanking: 230 uS
- Vblanking: 9.29 mS
My THS prepare and THS-zero times were measured directly using a scope so I am pretty confident in the value I have for PHY Time Delay.
MIPI clock frequency from the imager confirmed directly with a scope.

Imager output:

My imager outputs its data one line at a time. Each line is comprised of 3 long packets filled with metadata (data type = 0x31) followed by 24 long packets of pixel data (RAW12), each long packet contains 8 pixels worth of data. An example is shown below:

There are 56 packet sets (3 metadata + 24 RAW12) per frame. As shown below:

Test process:

Flash the CX3 RAM with my FW.
Initialize MIPI block and apply interface settings with CyU3PMipicsiSetIntfParams

Set PHY Time Delay with CyU3PMipicsiSetPhyTimeDelay and configure GPIF bus width:

Call CyCx3AppStart(), configure imager, and then start MIPI stream.

UART log from startup using FW generated by EZ USB suite with small additions of some print statements:

UART log after starting MIPI stream with a print statement added to my thread entry for MIPI errors (code added for printing MIPI errors shown below):

As you can see, I am getting a bunch of Multi data lane sync errors and an occasional FrmErr.

I have tried tuning my PHY delay time and I can’t really make things better than this. I can produce more errors when I set PHY delay time below 6 or so. But I never get less errors than what is shown above. I also never see a DMA call back or any producer events.

I have confirmed that the layout of my board is up to MIPI specifications in terms of inter lane length differences, total trace length, and differential pair impedance. I am at a loss for what the issue could be here…

Any assistance on this issue would be greatly appreciated. I have attached my full project for your review. Please note that all imager configuration code is handled outside of the CX3 so you will not see any code for that in the CX3 FW.

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By skywhe

Apr 9, 2024

148

USB superspeed peripherals

使用CX3 使用SEGGER-Jlink时无法打断点，同时UART在CyU3PUsbStart执行后就无法正常运行

1、SEGGER-Jlink时无法打断点我在配置好JTAG后，将程序下载到RAM中后可以运行，但无法打断点和暂停。我是用的SDK包时1.3.5，基于cycx3_uvc_ov5640工程进行的修改。DEBUG配置如下 2、我基于cyfxuartlpregmode工程在cycx3_uvc_ov5... Show More

1、SEGGER-Jlink时无法打断点

我在配置好JTAG后，将程序下载到RAM中后可以运行，但无法打断点和暂停。我是用的SDK包时1.3.5，基于cycx3_uvc_ov5640工程进行的修改。DEBUG配置如下

2、我基于cyfxuartlpregmode工程在cycx3_uvc_ov5640中创建了串的收发，主要配置代码如下

CyU3PReturnStatus_t

SNPrint (

uint8_t *debugMsg,

uint16_t *length,

char *message,

va_list argp);

SHELL_TypeDef shell;

uint8_t print_buf[100];

void CyU3PUartIntrCb(

CyU3PUartEvt_t evt,

CyU3PUartError_t error)

{

uint8_t data;

CyU3PReturnStatus_t status;

uint32_t count;

if (evt == CY_U3P_UART_EVENT_RX_DATA)

{

do{

count = CyU3PUartReceiveBytes (&data, 1, &status);

if(count!=0){

UartDataBuffer[UartDataWrPtr] = data;

UartDataWrPtr++;

if (UartDataWrPtr == CY_FX_UARTLT_BUF_SIZE)

UartDataWrPtr = 0;

UartDataCount++;

}

}while (count !=0);

// data=((uint8_t)(UART->lpp_uart_ingress_data));

CyU3PEventSet (&UartEvent, UART_RECEIVE_DATA_EVT, CYU3P_EVENT_OR);

}

if (CY_U3P_UART_EVENT_ERROR == evt)

{

CyU3PEventSet (&UartEvent, UART_ERROR_EVT, CYU3P_EVENT_OR);

}

void send_char(const char data)

{

CyU3PReturnStatus_t stat;

CyU3PUartTransmitBytes((uint8_t *)&data,1,&stat);

}

void uart_init(void)

{

CyU3PUartConfig_t uartConfig={0};

CyU3PReturnStatus_t status;

// CyU3PUartDeInit();

// CyU3PThreadSleep(1);

status = CyU3PUartInit();

if (status != CY_U3P_SUCCESS)

{

return;

}

/* Set UART Configuration */

uartConfig.baudRate = CY_U3P_UART_BAUDRATE_115200;

uartConfig.stopBit = CY_U3P_UART_ONE_STOP_BIT;

uartConfig.parity = CY_U3P_UART_NO_PARITY;

uartConfig.txEnable = CyTrue;

uartConfig.rxEnable = CyTrue;

uartConfig.flowCtrl = CyFalse;

uartConfig.isDma = CyFalse;

status = CyU3PUartSetConfig (&uartConfig, CyU3PUartIntrCb);

if (status != CY_U3P_SUCCESS )

{

/* Error handling */

return;

}

void

UartThread_Entry (

uint32_t input)

{

CyU3PReturnStatus_t status = CY_U3P_SUCCESS;

uint32_t evStat;

uint16_t cnt=0;

UartDataBuffer = (uint8_t *)CyU3PDmaBufferAlloc (CY_FX_UARTLT_BUF_SIZE);

if (UartDataBuffer == 0)

CyCx3AppErrorHandler(CY_U3P_ERROR_MEMORY_ERROR);

UartDataCount = 0;

UartDataWrPtr = 0;

UartDataRdPtr = 0;

uart_init();

CyU3PUartSetTimeout (1, 50000);

shell.write=send_char;

shellInit(&shell);

debug_print("shell init ok\r\n");

// uart_reg_print();

while (1)

{

CyU3PThreadSleep(1);

status = CyU3PEventGet (&UartEvent, UART_RECEIVE_DATA_EVT, CYU3P_EVENT_OR_CLEAR, &evStat,CYU3P_NO_WAIT);

if (status == CY_U3P_SUCCESS)

{

while(UartDataCount > 0){

shellInput(&shell, UartDataBuffer[UartDataRdPtr]);

// CyU3PUartTransmitBytes (UartDataBuffer + UartDataRdPtr, 1, &status);

if(status == CY_U3P_SUCCESS){

UartDataRdPtr++;

if (UartDataRdPtr == CY_FX_UARTLT_BUF_SIZE)

UartDataRdPtr = 0;

UartDataCount--;

}

cnt++;

if(cnt==10000){

cnt=0;

uart_reg_print();

}

uint8_t create_uart_thread(void)

{

void *ptr = NULL;

uint32_t ret = CY_U3P_SUCCESS;

ret = CyU3PEventCreate (&UartEvent);

if (ret != CY_U3P_SUCCESS)

return 1;

ptr = CyU3PMemAlloc (CY_FX_UARTLP_THREAD_STACK);

if (ptr == 0)

return 2;

ret = CyU3PThreadCreate (&UartThread, /* UART Example App Thread structure */

"UART_register_mode", /* Thread ID and Thread name */

UartThread_Entry, /* UART Example App Thread Entry function */

0, /* No input parameter to thread */

ptr, /* Pointer to the allocated thread stack */

CY_FX_UARTLP_THREAD_STACK, /* UART Example App Thread stack size */

CY_FX_UARTLP_THREAD_PRIORITY, /* UART Example App Thread priority */

CYU3P_NO_TIME_SLICE, /* No time slice for the application thread */

CYU3P_AUTO_START /* Start the Thread immediately */

);

if (ret == CY_U3P_SUCCESS)

return 0;

}

void uart_reg_print(void)

{

for(uint8_t i=0;i<8;i++){

debug_print("UART reg_addr0x%x = 0x%x\r\n",UART_BASE_ADDR+i*4,*((uint32_t *)(UART_BASE_ADDR+i*4)));

}

debug_print("UART reg_addr0x%x = 0x%x\r\n",&UART->lpp_uart_id,UART->lpp_uart_id);

debug_print("UART reg_addr0x%x = 0x%x\r\n",&UART->lpp_uart_power,UART->lpp_uart_power);

debug_print("---------------------\r\n");

}

目前我测下来不开启USB相关功能时可以正常的进行收发，但当开启USB相关功能后就无法进行收发，我是通过注释

CyU3PUsbStart（）函数发现的。

对于以上问题，期待你们的答复。

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By wpd

Apr 11, 2024

172

USB superspeed peripherals

USB配置以及函数问题

CyU3PDmaChannelSetupSendBuffer这个函数在使用debug的时候出现了67的错误，请问这是什么原因导致的呢？并且，我想询问一下，在任何USB设备下，假如某一个端点设置成INT模式，主机是否会轮询这个端点，从而每当此端点有数据的时候，在主机的轮询下就会发送给主机？？我需要完成... Show More

By Weiqi__Zhong

Apr 11, 2024

USB superspeed peripherals

自行编译CyBootprogrammer.img

Solved

我想对CyBootprogrammer.img这个固件新加一条命令，所以我想知道这个固件的源码在哪里

By 她说隔岸观火

Apr 11, 2024

USB superspeed peripherals

video stream from USB 3 to RGB with FX3

Solved

Hello, I am searching for a solution, for my task. I want transfer a video signal from USB 3 to a 24 bit RGB-signal for a display. At first glance the... Show More

By Jakob

Mar 22, 2024

110

USB superspeed peripherals

USB 3.0 Training Windows 10/11 - Intel USB 3.1/3.2

Unit has been in production for 6 years. Device will be listed in the Device Manager with Intel(R) 3.0 eXtensible Host controller. But has sporadic li... Show More

By Osprey

Apr 10, 2024

USB superspeed peripherals

Why does the slavefifo transfer not work after the soft reset of the cyu...

Solved

Hi. I use the cyusb3014 in slavefifo mode to connect with the fpga chip, and after the power up , the system works well, but if i send vendor command ... Show More

Translation_Bot

Apr 10, 2024