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Problem with HID USB (PIC18F4550 and EasyHID)


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escapevn



Joined: 23 Feb 2006
Posts: 12


Post23 Feb 2007 9:21   

easyhid


Hi everybody!
I have a problem when use EasyHID software to receive data from USB HID device. EasyHID generates a mcHID.dll file, a Visual C++ 6.0 project automatically. Read from and Write to USB HID device are the same as read and write to mcHID.dll file.
But problem occur when I transmit from USB HID device. Firmware which I use is ex_usb_hid.c, an example in CCS software (PIC 18F4550). When I transmit a large file (> 10MB) my PC program cannot receive all of data. But when I use USB monitor (HHD software) to manage data transfer over USB HID device, I see all of data, they've transmitted from USB device to computer.
(I use a count variable to count bytes transmitted from USB HID device. My firmware transmit N bytes but VC++ program received only N-m bytes, m is not stable)
I cannot fix this bug, please help me, please show me incorrect points.
Thank you very much!!!
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escapevn



Joined: 23 Feb 2006
Posts: 12


Post26 Feb 2007 9:17   

easyhid usb


No one help me???
Help me Plzzzzzzzzzzzzzzzzzzzzzzzz!
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namqn



Joined: 19 Feb 2006
Posts: 172
Helped: 19


Post26 Feb 2007 12:07   

mchid.dll


escapevn wrote:
No one help me???
Help me Plzzzzzzzzzzzzzzzzzzzzzzzz!

Ok, the problem is with EasyHID. The host software could not handle that traffic. No one here wrote that EasyHID, so you should ask the author(s) of EasyHID for a solution. Or you could dig in the C code has been created by EasyHID and improve it.

Cheers,
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Post26 Feb 2007 12:07   

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vsmGuy



Joined: 26 Jun 2006
Posts: 489
Helped: 28


Post26 Feb 2007 15:10   

easyhid ccs


Without code/schematics how can we ever help you ?
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