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USB Superspeed Peripherals

Anonymous
Not applicable

Hello.

   

I want to exchange FX3 super speed to high speed at run time. but it fail. my code as below:

   

it is soming wrong or need do more? please help.

   

                apiRetStatus = CyU3PConnectState(CyFalse, CyFalse); //disconnect
                if (apiRetStatus != CY_U3P_SUCCESS) {
                    CyU3PDebugPrint (4, "USB disconnect failed, Error code = %d\r\n", apiRetStatus);
                }

                CyU3PThreadSleep (10);

                apiRetStatus = CyU3PConnectState(CyTrue, CyFalse); //connect with High speed
                if (apiRetStatus != CY_U3P_SUCCESS) {
                    CyU3PDebugPrint (4, "USB Connect failed, Error code = %d\r\n", apiRetStatus);
                }

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Anonymous
Not applicable

 Hi,

   

 

   

When it fails what is the error code returned? I believe it is the secodn call that is failing. Confirm the same.

   

 

   

Regards,

   

Gayathri

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Anonymous
Not applicable

 Hi,

   

 

   

Try to increase the value passed in the ThreadSleep() API. Try CyU3PThreadSleep(100) and see if it helps.

   

 

   

Regards

   

Shashank

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Anonymous
Not applicable

Hi,Gayathri & Shashank:

   

NO errocode be return, and I update sleeptime to 100, it is not work!

   

I set to HIGH speed after firmware boot, and use vendor command to change it to SUPER speed, it's OK.

   

but  set to SUPER speed after firmware boot, and change it to HIGH speed, it's FAIL, no usbdevice be in windows device manager..

   

next is my part code:

   

--------------------------------------------------------------------------------------------------------------

   

        case VR_FW_SET_USBSPEED:  //switch usb speed
            //Request with OUT data phase. Just get the data and ignore it for now. */
            CyU3PUsbGetEP0Data (sizeof (glEp0Buffer), (uint8_t *)glEp0Buffer, &wLength);
            // Complete the control request.
            CyU3PUsbAckSetup ();
            CyU3PThreadSleep (10);

            if (glIsApplnActive) {
                ApplnStop (); // Stop the application before re-starting.
                CyU3PThreadSleep (100);
            }

            if (wValue) { //!!!  OK from highspeed to super speed
                apiRetStatus = INA209_set_swp(FLAG_SUPERSPEED);
                if (apiRetStatus != CY_U3P_SUCCESS) {
                    CyU3PDebugPrint (4, "Set SUPERSPEED flag failed, Error code = %d\r\n", apiRetStatus);
                }

                apiRetStatus = CyU3PConnectState(CyFalse, CyFalse); //disconnect
                if (apiRetStatus != CY_U3P_SUCCESS) {
                    CyU3PDebugPrint (4, "USB disconnect failed, Error code = %d\r\n", apiRetStatus);
                }

                CyU3PThreadSleep (100);

                apiRetStatus = CyU3PConnectState(CyTrue, CyTrue); //connect with Super speed
                if (apiRetStatus != CY_U3P_SUCCESS) {
                    CyU3PDebugPrint (4, "USB Connect failed, Error code = %d\r\n", apiRetStatus);
                }
            } else {  //!!! FAIL from highspeed to super speed
                apiRetStatus = CyU3PConnectState(CyFalse, CyFalse); //disconnect
                if (apiRetStatus != CY_U3P_SUCCESS) {
                    CyU3PDebugPrint (4, "USB disconnect failed, Error code = %d\r\n", apiRetStatus);
                }

                CyU3PThreadSleep (100);

                apiRetStatus = CyU3PConnectState(CyTrue, CyFalse); //connect with High speed
                if (apiRetStatus != CY_U3P_SUCCESS) {
                    CyU3PDebugPrint (4, "USB Connect failed, Error code = %d\r\n", apiRetStatus);
                }
            }
            isHandled = CyTrue;
            break;

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Anonymous
Not applicable

sorry for some wrong message at last reply.

   

after changing SS to HS fail!, widows show a UNKNOWN DEVICE!

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Anonymous
Not applicable

Hi,

   

You might be using SDK 1.2.1, if I am not wrong.

   

Actually this bug was there in the SDK1.2.1 and it has been fixed in the later releases.

   

Could you please test with the latest SDK (1.2.3 or 1.2.2 if you have).

   

You can download the latest SDK from the following webpage:

   

http://www.cypress.com/?rID=57990

   

 

   

 

   

Thanks,

   

Sai Krishna.

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Anonymous
Not applicable

yes, I use 1.2.1.

   

I will try 1.2.3. thanks

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Anonymous
Not applicable

1.2.3 is OK for my firmware.

   

thanks for all.

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Anonymous
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