04-18-2018 02:42 AM
I ran "ZYNQ USB CDC CLASS" code exampleattaching link for reference,
,it was fine,but when I tried inserting USB to PC,it is showing unknown device.Please help me ,thanks in advance.
04-24-2018 08:58 PM
Actually I tried the method you tried.It worked after a long time.Multiple trials it worked ,but when I powered on after a day,again the same issue is seen.Is there any temperature issue?I am using zynq 7z030 with USB3320 chip.Please help me in this .Thanks in advance.
04-25-2018 06:53 AM
I had a similar problem with our USB2 hardware. The BSP required me to add the following
after XUsbPsu_CfgInitialize to force the library use HIGHSPEED instead of SUPERSPEED:
XUsbPsu_SetSpeed(&UsbInstance, XUSBPSU_DCFG_HIGHSPEED); // The BSP sets SuperSpeed
04-29-2018 11:25 PM
The sample code generates an empty ram disk, that can be accessed via USB mass storage.
This disk is empty as you start the hardware and does not contain the file system pattern.
Therefore you have to format it.
If you want to avoid this, you have to make sure the ram disk is initialized in the code with the file system information during startup.
Best regards Martin