View source for RxUsbEndpointSynchFrame

==Description==
Executes the Standard Device Request that synchronizes endpoint and frame. 

==Syntax==
<pre>
rc = RxUsbEndpointSynchFrame(Handle,Endpoint,FrameNumber)
</pre>

==Parameters==
; Handle : the Device Handle received from the previous RxUsbOpen. 

; Endpoint : the specific Endpoint Number appropriate for the USB device.

; FrameNumber : the name of the variable to receive the Frame Number. 

==Return Code==
<pre>
0x0000 - NO_ERROR
</pre>
===Errors===
<pre>
0x0006 - ERROR_INVALID_HANDLE
0x0008 - ERROR_NOT_ENOUGH_MEMORY
0x0057 - ERROR_INVALID_PARAMETER
0x005F - ERROR_INTERRUPT
0x0122 - ERROR_TOO_MANY_HANDLES
0x0280 - ERROR_TIMEOUT
0x1B58 - USB_NOT_INIT
0x4000 - USB_IORB_REQUEST
0x80XX - USB_IORB_FAILED
</pre>
==Remarks==

==Example Code==
<pre>
/* add RxUsbEndpointSynchFrame */
rc = RxFuncAdd('RxUsbEndpointSynchFrame','usbcalls','RxUsbEndpointSynchFrame')
say '+RxUsbEndpointSynchFrame(),RC=0x'd2x(rc)

/* invoke RxUsbEndpointSynchFrame */
Endpoint=128+1 /* isochronous endpoint */
drop FrameNumber /* receives frame number */
rc = RxUsbEndpointSynchFrame(Handle,Endpoint,FrameNumber)
say '*RxUsbEndpointSynchFrame(),RC=0x'd2x(rc)

/* drop RxUsbEndpointSynchFrame */
rc = RxFuncDrop('RxUsbEndpointSynchFrame')
say '-RxUsbEndpointSynchFrame(),RC=0x'd2x(rc)
</pre>

==Related Functions==

[[Category:USBCalls]]