viAssertIntrSignal
Purpose
Asserts the specified interrupt or signal.
C Syntax
ViStatus viAssertIntrSignal(ViSession vi, ViInt16 mode, ViUInt32 statusID)
Visual Basic Syntax
viAssertIntrSignal&(ByVal vi&, ByVal mode%, ByVal statusID&)
Resource Classes
GPIB-VXI BACKPLANE, VXI BACKPLANE, VXI SERVANT
Parameters
| Name | Direction | Description |
|---|---|---|
|
vi |
IN |
Unique logical identifier to a session. |
|
mode |
IN |
This specifies how to assert the interrupt. Refer to the Description section for actual values. |
|
statusID |
IN |
This is the status value to be presented during an interrupt acknowledge cycle. |
Return Values
| Completion Codes | Description |
|---|---|
|
VI_SUCCESS |
Operation completed successfully. |
| Error Codes | Description |
|---|---|
|
VI_ERROR_INV_OBJECT |
The given session reference is invalid. |
|
VI_ERROR_NSUP_OPER |
The given vi does not support this operation. |
|
VI_ERROR_RSRC_LOCKED |
Specified operation could not be performed because the resource identified by vi has been locked for this kind of access. |
|
VI_ERROR_BERR |
Bus error occurred during transfer. |
|
VI_ERROR_INTR_PENDING |
An interrupt is still pending from a previous call. |
|
VI_ERROR_INV_MODE |
The value specified by the mode parameter is invalid. |
|
VI_ERROR_NSUP_INTR |
The interface cannot generate an interrupt on the requested level or with the requested statusID value. |
|
VI_ERROR_NSUP_MODE |
The specified mode is not supported by this VISA implementation. |
Description
This operation can be used to assert a device interrupt condition. In VXI, for example, this can be done with either a VXI signal or a VXI interrupt. On certain bus types, the statusID parameter may be ignored. The following table lists the valid values for the mode parameter.
| Mode | Action Description |
|---|---|
|
VI_ASSERT_USE_ASSIGNED |
Use whatever notification method that has been assigned to the local device. |
|
VI_ASSERT_SIGNAL |
Send the notification via a VXI signal. |
|
VI_ASSERT_IRQ1 - VI_ASSERT_IRQ7 |
Send the interrupt via the specified VXI/VME IRQ line. This uses the standard VXI/VME ROAK (Release On AcKnowledge) interrupt mechanism, rather than the older VME RORA (Release On Register Access) mechanism. |
Related Topics