RxUsbEndpointSynchFrame: Difference between revisions

Revision as of 11:25, 10 February 2017

Description

Executes the Standard Device Request that synchronizes endpoint and frame.

Syntax

rc = RxUsbEndpointSynchFrame(Handle,Endpoint,FrameNumber)

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

0x0000 - NO_ERROR

Errors

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
0xFF0D - ERROR_INVALID_DATA
0xFF13 - ERROR_I24_INVALID_PARAMETER
0xFF13 - USB_IDC_PARMERR
0xFF18 - USB_IDC_ADDRINV
0xFF37 - ERROR_DEV_NOT_EXIST
0xFF5D - EROR_NO_ITEMS
0xFFA7 - ERROR_LOCK_FAILED

Remarks

Example Code

/* 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)

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