topic hid_param.HID_EpIn_Hdlr not called in LPC Microcontrollers

hid_param.HID_EpIn_Hdlr not called

johnkoning — Thu, 07 Dec 2017 21:27:18 GMT

I've implemented the core functions of the LPC11u24. Device enumerates correct, however transmitting reports is a problem.

As far as I understand the EP handler registered with "hid_param.HID_EpIn_Hdlr" should be triggered, each time the host

polls the device. This isn't the case now. If I call USBD_API->hw->WriteEP from within the main, the handler will be called, what I didn't expect.
So is the scenario:

host polls -> trigger EP handler -> write to endpoint

write to end point -> trigger EP handler

In case of the first, what goes wrong.

Re: hid_param.HID_EpIn_Hdlr not called

jeremyzhou — Fri, 08 Dec 2017 02:26:35 GMT

Hi John Koning,

Thank you for your interest in NXP Semiconductor products and 

for the opportunity to serve you.

To provide the fastest possible support, you can refer to the USB ROM demos in the LPCOpen library.
LPCOpen Software for LPC11XX|NXP 
Have a great day.
TIC
 
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Re: hid_param.HID_EpIn_Hdlr not called

johnkoning — Fri, 08 Dec 2017 18:30:08 GMT

Forgot to attach my code as is.