USB superspeed peripherals Forum Discussions

Hi,

I am working on a Windows console application to write/read EP0. FX3 firmware doesn't do anything other than loopback the data get from EP0.

The Windows console application EP0 Read() takes about 5-6 seconds to complete. See code below -

   bXferCompleted = ctrlEpt->Write((PUCHAR)puc_buf_out, (LONG &)ul_len);

   bXferCompleted = ctrlEpt->Read((PUCHAR)puc_buf_in, (LONG &)ul_len);

Is there any reason why the EP0 Read takes so long to complete?

Thanks,

Dick

Hello,

             My quetion is that can i implement bare metal program on Cypress FX3 EZ-USB suite?

Dear Sir,

There are several I2C slave devices attached with my CX3 video board. all I2C operation will done within esUVCUvcAppThread_Entry().

I want to know whether these I2C operations which are time-consuming can block video streaming?

For example,UVC header is added by CPU manually, which is done by  esUVCUvcAppDmaCallback(), do I2C operation in esUVCUvcAppThread_Entry() block this action and then block video streaming?

Best,

David

I've got the FX3 SuperSpeed Explorer Kit, and while reading through the firmware code I haven't found a way to send protocol-layer packets.

I wish to manipulate fields such as the sequence numbers, device addresses, crcs, etc, of the usb packet. How can I achieve this?

hi,

     I wanted to usb USB full speed mode,the wMaxPacketSize in the device descriptor was set 8bytes.Now please give me some support which firmware can choose.