lpcexpresso55s28 dev hid generic freertos example

[AlonaB]

Hello,

I am using the LPC55S28 microcontroller and adapting code from the hid generic example into my project. I implemented a type of flow control by returning kStatus_USB_Busy in kUSB_DeviceHidEventSetReport when I want the host to wait and not send more messages.

for (; devState < ((uint32_t)USB_DEVICE_IP3511_ENDPOINTS_NUM * 2U); ++devState) {

/* Check the endpoint interrupt */

if (0U != (interruptStatus & (0x01UL << devState))) { USB_DeviceLpc3511IpInterruptToken(lpc3511IpState, (uint8_t)devState, 0U, usbErrorCode);

} }

This behavior is triggered immediately because interruptStatus and devState are updated to 2 and 1, respectively.

How can I prevent this event from being re-triggered, given that the buffer does not contain any new data? Currently, this results in duplicate messages being processed every time I return the kStatus_USB_Busy status.

I would appreciate your help!

[yisey]

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