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About the HIDRxHandleBusy function in USB communication

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maniac84

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Hi guys,

I'm using PIC18F25K50 for my project here. And I'm using the HIDRxHandleBusy to receive data from a host.

When there data is received: HIDRxHandleBusy(USBOutHandle)=0;
When data is cleared: HIDRxHandleBusy(USBOutHandle)=1;

Is this a correct assumption?

Just want to know in what condition, my PIC won't received any data even though the host indicate that it had sent the data?
I'm using "if(!HIDRxHandleBusy(USBOutHandle))" to check but there's no data coming in.
 

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