Hi,

I'm developing a temperature controller which need to communicate with PC. I want to use HID so I don't need to develop the usb driver. But when I finished a demo firmware. The device can send data to EP1, but the PC applicaiton can not receive the IN data. Also when the PC app send data to EP2, the controller can not receive the OUT data. I captured the data by Bushound, and found the PC and the device are always communicated by EP0. My question is how can I read the data from EP1 and write data to EP2 with the HID device.

Attached is the report descriptor I am using.

What is the host application that you're using to communicate with EP1 and EP2 based on?

Regards,

Anand

I am developing a host application by myself using C#. The purpose of the host application is to establish the communication between the PC and Embedded board, so that I can send some command by usb to the embedded board. For example, if I want to let the temperature to 15degree, I would use the host application to send a command to the device. When the device received the command, it will do the exactly thing.

Regards

What I'm asking is the HID device would be connected to HID driver usbhid.sys. What are you using to communicate with this driver so that you can send the requests to the HID device.

Regards,

Anand

I'm using the CyUSB.dll which is downloaded from cypress.com to communicate with the driver. The class I am using is CyHidDevice.

Using ReadInput( )/WriteOutput( ) you should be able to communicate with the non-Control endpoint. Are you using this or are you using GetInput( )/SetOutput( )?

Regards,

Anand

Hi Anand,

I used ReadInput( )/WriteOutput( ), but all the data I read are 0. For example, I let the PSoC 3 send three bytes data 01 03 07, I can see these data were write to endpoint 1 on Bushound. But on the PC side, I can only read 0. And I watched the Inputs.DataBuf, all the data are 0.

Thank you

Please check if you're sending the variables right. If possible please attach your host app here I would like to take a look at it.

Regards,

Anand

Hi Anand,

The Host App is very simple.

USBDeviceList HidDevices = new USBDeviceList(CyConst

.DEVICES_HID);

CyHidDevice hidDev = HidDevices[0x04B4, 0x8051] as CyHidDevice;byte[] rcv = hidDev.Inputs.DataBuf;

When I set break point after the last line. I can see the information of the hidDev. But the datas in DataBuf are all 0.Attached are the PSoC code and the Bushound information.

Thank you

hidDev.ReadInput();

Hi Anand, 

The Host App is very simple.

USBDeviceList HidDevices = new USBDeviceList(CyConst.DEVICES_HID);

CyHidDevice hidDev = HidDevices[0x04B4, 0x8051] as CyHidDevice;

byte[] rcv = hidDev.Inputs.DataBuf;

hidDev.ReadInput();

When I set break point after the last line. I can see the information of the hidDev. But the datas in DataBuf are all 0.Attached are the PSoC code and the Bushound information.

Thank you

WHERE IS

\GUI\ Interrupt_Transfer_Example \bin\Release.

I WOULD LIKE TO USE THIS PGM TO SEE IF MY USB IN THE PSOC WORKS

THIS IS IN YOUR PDF FILE

USB Interrupt Transfer Example
– PSoC® 3 / PSoC 5

Alby,

I did not get your question clearly. Could you please add few more details to it.

Thanks,

sai krishna.

 The .rar file that comes as part of http://www.cypress.com/?id=4&rID=58480 should have it.