2 Replies Latest reply on Jan 5, 2019 2:36 PM by jalo_3965396

    CY8CKIT-059 USBUART Will Not Initialize.

    jalo_3965396

      I'm using CY8CKIT-059 and am attempting to get the USBUART working - preferably including powering the device.

       

      However, in the example code, there is a wait for " USBUART_GetConfiguration() that will wait until that returns a non zero value. It always returns 0.

      I've tried the examples, I've verified my clocks.. Code compiles, and programs no problem.

       

      I've got a regular TTL UART working, but I'd much rather use the USB uart so I can have just the one cable running to this module for power and communications...

       

      FYI This doesn't appear to be a windows device issue - it doesn't enumerate because it is stuck in that loop of GetConfiguration.

       

      I've also tried it on two seperate CY8CKit's...

       

      *snip*

      int main ()

          CyGlobalIntEnable;

       

       

          /* Start USBFS operation with 5-V operation. */

          USBUART_Start(USBFS_DEVICE, USBUART_5V_OPERATION);

         

          for(;;)

          {

              /* Host can send double SET_INTERFACE request. */

              if (0u != USBUART_IsConfigurationChanged())  // THIS ALWAYS RETURNS 0

              {

                  /* Initialize IN endpoints when device is configured. */

                  if (0u != USBUART_GetConfiguration())  // THIS ALSO ALWAYS RETURNS 0

                  {

                      /* Enumeration is done, enable OUT endpoint to receive data

                       * from host. */

                      USBUART_CDC_Init();

                  }

              }

      *snip

       

      I can get by using an external TTL to USB Serial adapter, but that kinda defeats the purpose Any help would be greatly appreciated..

        • 1. Re: CY8CKIT-059 USBUART Will Not Initialize.
          BoTa_264741

          james,

          You can still use a single cable for UART communication with PC and powering KIT-059, if used pins 12_6 and 12_7 for RX and TX, which are hard-wired to USB-UART  converter located in KitProg. Once KIT-059 is programmed, you will find additional COM port in Device Manager.

           

          To check USBUART issue, please post project bundle here: 1. Build->Clean. 2. File->Create Archive bundle->minimal. 3. Delete Generated_source folder inside archive to save space.

          /odissey1

          • 2. Re: CY8CKIT-059 USBUART Will Not Initialize.
            jalo_3965396

            Yikes..

             

            Thanks for the input.... As it turns out - was as simple as a bad cable.... Turns out I was using a USB-Micro cable that only provided power, and no data lines.. Lesson learned.

             

            Thanks for your input anyways!