hil_monitor_create_interrupt_reader :: QUARC MATLAB Functions

navigation bar

hil_monitor_create_interrupt_reader

Deprecated

The HIL API MATLAB functions have been deprecated in favour of the new quanser.hardware.hil class, which has support for code generation for Quanser targets. Hence, with the new hil class it is possible to run MATLAB scripts in real-time on Quanser targets, while making use of the Quanser hardware.

Creates a monitor to read the specified interrupt channels.

Syntax

[monitor, err] = hil_monitor_create_interrupt_reader(board, channels)

Description

Creates a monitor to read the specified interrupt channels. The monitor must be deleted using the hil_monitor_delete or the hil_monitor_delete_all function. Monitors are used for querying the status of events. Monitors query events in the background once the monitor is started. The current state may be read using the hil_monitor_read_interrupt function. Since the hil_monitor_read_interrupt function blocks and MATLAB is not multi-threaded, it is often preferable to use the hil_poll_interrupt function instead of monitors.

If no err output is provided then it throws an exception if an error occurs. In generated code it prints the error message. Use hil_get_error_message to get the message associated with an error code.

Parameters

board

The board handle returned by hil_open.

channels

A vector of channel numbers corresponding to interrupt sources. Channel numbers are zero-based.

Select a board type from the list for board-specific details: .

Outputs

monitor

A monitor structure. Fields of the structure should never be modified.

err

A negative error code or zero on success.

Examples

% Create a monitor to read interrupt sources 0 and 3.
monitor = hil_monitor_create_interrupt_reader(board, [0 3]);