大家好，

          我在使用fx3的串口接收时发现了一个奇怪的现象。我的系统架构是这样：fx3的串口收发两根线和mcu相连。pc通过control out把内容发送到fx3，fx3从 control endpoint 0 取出后通过串口发送给mcu。mcu在接收到串口数据后，等待1ms左右，开始通过串口回发数据给fx3。pc通过control in 把fx3的串口接受到的数据获取上来。

PC端control out和control in 请求是连续执行，中间未有延时等

Status = USBControlOUT(&(((SA_Typedef*)(*pSA))->USBDev), TGT_DEVICE, REQ_CLASS, 0x01, 0, 0, (unsigned char*)QuerO_Buf, &Datalen);
Status = USBControlIN(&(((SA_Typedef*)(*pSA))->USBDev), TGT_DEVICE, REQ_CLASS, 0x81, Datalen, 0, QuerI_Buf, &Datalen);

fx3对应代码

 /* UART Specific Requests */
    if (bRequest == CY_FX_USB_UART_GET_CUR_REQ)
    {
        /* Host requests data. Send it over EP0. */
                

                /*clear rx buffer*/
		CyU3PUartSetTimeout (1, 10000);
		CyU3PUartReceiveBytes(glUartRxBuffer, 4, &status); //clear buffer of uart receiver
		CyU3PUartSetTimeout (0xfffff, 0xfffff);


		actualCount = CyU3PUartReceiveBytes(glUartRxBuffer, wValue, &status);

		if(status== CY_U3P_SUCCESS) //if all wanted data received sucessfully,sent it over endpiont 0
			status = CyU3PUsbSendEP0Data(wValue, glUartRxBuffer);
		else //if an error happened during receive process,send fx3 uart receive error code
			status = CyU3PUsbSendEP0Data(1, gluartRXerr);

		isHandled = CyTrue;

    }
    else if (bRequest == CY_FX_USB_UART_SET_CUR_REQ)
    {
        /* Get the UART data from EP0 */
        status = CyU3PUsbGetEP0Data (wLength, glUartTxBuffer, &readCount);
        if (status == CY_U3P_SUCCESS)
        {
            /* Send the byte */
            CyU3PUartTransmitBytes (glUartTxBuffer, readCount, &status);
            /* Check status and actual count transferred */
            if (status != CY_U3P_SUCCESS)
            {
                /* Error handling */
                //CyFxAppErrorHandler(apiRetStatus);
            }
        }
        isHandled = CyTrue;
    }

使用sdk1.3.3时，功能完全正常，pc可以通过 control in 获取到mcu发过来的数据。但使用sdk1.3.4时，fx3串口无法接收数据。

actualCount = CyU3PUartReceiveBytes(glUartRxBuffer, wValue, &status);  代码status提示超时，actualCount 为4，即只获取上来4个字节。通过示波器查看fx3串口接收引脚，不管是1.3.3编译出的代码，还是1.3.4编译出的代码，均能看到正常的数据波形，也即mcu都成功接受到了fx3发过来的数据，并且启动了回发到fx3的过程。

产生上述现象的原因是什么？希望有使用经验的各位能提供解答。谢谢！

Dear Yatheesh,

Sorry to bother you again.

After the last /RD signal problem was solved, no more underrun error.

But recently, all system combined test, I received error "No error : 18" from CY3014 uart port ,then, Xfer to FPGA failed.

Please kindly advise what is "No error : 18" ?

BR

Steven.

Hi,

Could you please help me with Schematic and firmware design support to drive Segment LEDs using the PSoC 5LP chip?
We have to drive a seven-digit seven segment display with various segment current from 16-bit serial input.

Regards,

Mari 

Hello.

I am trying to connect CX3 to Image sensor.

Our Image Sensor has MIPI D-PHY 1.2 (CSI-2 1.2).

But CX3 has MIPI CSI-2 compliant (Version 1.01).

Can I connect CX3 to our image sensor or not?

dmaConfig.cb = CyFxUartLpDmaCallback

the CyFxUartLpDmaCallback can not be called for uart rx dma of mode when the rx receive data.The code is as follows：

CyU3PReturnStatus_t
CyCx3AppDebugInit (void)
{
CyU3PUartConfig_t uartConfig;
CyU3PDmaChannelConfig_t dmaConfig;
CyU3PReturnStatus_t status = CY_U3P_SUCCESS;

/* Initialize the UART module */
status = CyU3PUartInit ();
if (status != CY_U3P_SUCCESS)
{
/* Error handling */
CyCx3AppErrorHandler(status);
}

/* Configure the UART
Baudrate = 115200, One stop bit, No parity, Hardware flow control enabled.
*/
CyU3PMemSet ((uint8_t *)&uartConfig, 0, sizeof(uartConfig));
uartConfig.baudRate = CY_U3P_UART_BAUDRATE_115200;
uartConfig.stopBit = CY_U3P_UART_ONE_STOP_BIT;
uartConfig.parity = CY_U3P_UART_NO_PARITY;
uartConfig.flowCtrl = CyFalse;
uartConfig.txEnable = CyTrue;
uartConfig.rxEnable = CyTrue;
uartConfig.isDma = CyTrue; /* DMA mode */

/* Set the UART configuration */
status = CyU3PUartSetConfig (&uartConfig, CyFxUartLpDmaCallback);
if (status != CY_U3P_SUCCESS )
{
/* Error handling */
CyCx3AppErrorHandler(status);
}

/* Create a DMA Manual channel between UART producer socket
and UART consumer socket */
CyU3PMemSet ((uint8_t *)&dmaConfig, 0, sizeof(dmaConfig));
dmaConfig.size = 16;
dmaConfig.count = 2;
dmaConfig.prodSckId = CY_U3P_LPP_SOCKET_UART_PROD;
dmaConfig.dmaMode = CY_U3P_DMA_MODE_BUFFER;
dmaConfig.notification = CY_U3P_DMA_CB_PROD_EVENT;
dmaConfig.cb = CyFxUartLpDmaCallback;
dmaConfig.prodHeader = 0;
dmaConfig.prodFooter = 0;
dmaConfig.consHeader = 0;
dmaConfig.prodAvailCount = 0;

/* Create the channel */
status = CyU3PDmaChannelCreate (&glUartRxChHandle,
CY_U3P_DMA_TYPE_MANUAL, &dmaConfig);
if (status != CY_U3P_SUCCESS)
{
/* Error handling */
CyCx3AppErrorHandler(status);
}

/* Set UART Tx and Rx transfer Size to infinite */
status = CyU3PUartRxSetBlockXfer(0xFFFFFFFF);
if (status != CY_U3P_SUCCESS)
{
/* Error handling */
CyCx3AppErrorHandler(status);
}

/* Set DMA Channel transfer size */
status = CyU3PDmaChannelSetXfer (&glUartRxChHandle, 0);
if (status != CY_U3P_SUCCESS)
{
/* Error handling */
CyCx3AppErrorHandler(status);
}

/* Initialize the debug application */
status = CyU3PDebugInit (CY_U3P_LPP_SOCKET_UART_CONS, 8);
if (status != CY_U3P_SUCCESS)
{
return status;
}

CyU3PDebugPreamble (CyFalse);

}

void CyFxUartLpDmaCallback (
CyU3PDmaChannel *chHandle, /* Handle to the DMA channel. */
CyU3PDmaCbType_t type, /* Callback type. */
CyU3PDmaCBInput_t *input) /* Callback status. */
{
CyU3PReturnStatus_t status;
gUartRecDataFlag = CyFalse;
if (type == CY_U3P_DMA_CB_PROD_EVENT)
{
/* This is a produce event notification to the CPU. This notification is
* received upon reception of every buffer. The buffer will not be sent
* out unless it is explicitly committed. The call shall fail if there
* is any application error. */

input->buffer_p.buffer[input->buffer_p.size] = '\0';
CyU3PDebugPrint (4, "%s", input->buffer_p.buffer);

status = CyU3PDmaChannelDiscardBuffer (chHandle);

if (status != CY_U3P_SUCCESS)
{
CyCx3AppErrorHandler (status);
}
}
}

The serial IO configuration is correct and the connection is correct. I've tested TX, Rx in register mode.Now I want to use DMA to receive data。but the the Callback function can not be called for uart rx dma of mode when the rx receive data.

We have a design that is based off the CY8CPROTO-062-WiFi board. Our board has a built-in KitProg3 just like the the proto board. We need to program the CY8C5868LTI-LP039 with the KitProg3 firmware. What tool should we use to do this?  Does the PSOC5 come from the factory programmed with a bootloader that will accept the KitProg3 image via USB?

I was able to program a KitProg3.hex file into real KitProg3 board by connecting a MiniProg4 to the PSOC5 XRES, P1.0 and P1.1 pins. Unfortunately,  the manufacturer failed to route those pins on our board. Our only option to program the PSOC5 is with USB. Is it possible?

Thanks in advance.

Hello,
I am working with a single-board computer (SCB) that does not have an Ethernet peripheral but has a USB peripheral. I am looking for an IC that will be able to convert the ethernet data to USB, to send it to the SBC. I would appreciate it greatly if someone can suggest a solution?

Thank you very much for your time and consideration.

Best Regards,

Ifthekhar Ahammad

I'm having difficulty figuring out how to get my EZ-USB FX3 GPIF-II synchronous master interface working reliably.

For each of the following questions I only want to know the answers that apply to the EZ-USB FX3 when operating the GPIF-II in synchronous master mode.  I don't care about synchronous slave mode or asynchronous modes.

1. What are the minimum and maximum allowed PCLK frequencies?
2. When executing CyU3PPibInit() what are the minimum and maximum functional clkDiv values for the PibClock?
3. When executing CyU3PPibInit() should isDllEnable be true or false, or does the answer vary based on clkDiv?
4. Do I need to configure the PIB DLL CTRL register (0xE0010028), either directly or via CyU3PPibDllConfigure()?
5. In pib_regs.h the HIGH_FREQ bit includes the comment "0: 23-80MHz, 1:70-230MHz".  Does this mean the PIB DLL CTRL register should only be used for the 23MHz-230MHz frequency range?
6. Various phase selects are defined in pib_regs.h (CORE_PHASE, SYNC_PHASE, OUTPUT_PHASE) and used by CyU3PPibDllConfigure().  Why are these fields not defined in EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. F?

Hi

   I found a strange problem. The ifclk pin of cy7c68013A has output working with the driver of CY3684 EZ-USB FX2LP Developmeng kit(the chip VID is 04B4 PID is 8614, same as in inf file), while ifclk pin has no output when I install the driver of cyusb3.sys(the VID and PID is modified as 04B4 8614 in cyusb3.inf).

  Is appears that the iclk pin has output when the chip is powered on(VID 04B4 PID 8614), and no installing cyusb3.sys, if the driver of cyusb3.sys is installed, the output will be disappeared after a few seconds. Is there any limition in cyusb3.sys? How to fix it?

Hi Cypress,

I have been programming my FX3 SuperSpeed microcontroller, with the help from the CyControl Center. When I build my C-program and create a .img file, I can put it on by programming it via RAM. But this means, when I remove power, it will delete the program off the board (and I have to reprogram it every time I give it power).

How do I program it with an .img file, such that the program runs automatically on boot / when it gets power?

I've also tried to proram it via I2C E2PROM and SPI FLASH, but I don't think that's how you should do it, and I can't get it to work either by programming it that way.

Best regards,

Søren