Hardware Interrupt

R2026b

Trigger function-call subsystems in response to hardware interrupt events

Since R2026a

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Hardware Interrupt block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Embedded Coder Support Package for Renesas RA Microcontrollers / Renesas RA6 Based

Description

The Hardware Interrupt block triggers a downstream function-call subsystem from an interrupt service routine. When the selected interrupt occurs, the block outputs a signal that activates the connected function-call subsystem.

You can select the appropriate interrupt service routine and define which events to handle, as well as the order in which they are executed. Additionally, you can assign a priority level to the downstream function-call subsystem to control its execution precedence.

Note

Before building the model, you must enable the interrupt group, callback name, and each event to serve in the RA Smart Configurator (RASC) project. If these are not configured in RASC, the generated code will not compile.

Examples

Using Analog to Digital Converter Block with Renesas RA Microcontrollers

Digitize analog signals on Renesas® RA microcontrollers using the Analog to Digital Converter (ADC) block in Simulink® with Embedded Coder® Support Package for Renesas RA Microcontrollers. In this example, you measure the on-chip temperature sensor on a Renesas MCK-RA6T2 board and convert raw ADC values into temperature readings.

• Open Live Script

Read ADC Values Using Timer-Triggered Interrupts on Renesas RA Microcontrollers

Use the ADC (Analog-to-Digital Converter) blocks in the Embedded Coder® Support Package for Renesas® RA Microcontrollers to read analog input values using timer-triggered interrupts.

• Open Live Script

Ports

Output

Port_1 — Function-call output

scalar

The block outputs a function-call signal when the selected interrupt and event occur.

Parameters

Interrupt group — Select interrupt group

Analog to digital converter (r_adc_b) (default)

Select the peripheral group whose interrupt you want to use. The available options depend on the Renesas RA device and configuration.

Programmatic Use

Block Parameter: ISRGroup

Interrupt name — Select callback name

r_adc_b Peripheral Callback (default) | r_adc Peripheral Callback

Specify the name of the interrupt name associated with the selected interrupt group.

Programmatic Use

Block Parameter: ISRName

Interrupt function name — Specify interrupt function name

r_adc_b_callback (default)

Specify the name for the interrupt function name.

Programmatic Use

Block Parameter: ISRFunctionName

Events to serve — Option to select the events

Default event (default) | ADC_0 Error | ADC_1 Error | ADC_0 Overflow | ADC_1 Overflow | Limit Clip | Group0 Scan End | Group1 Scan End | Group2 Scan End | Group3 Scan End | Group4 Scan End | Group5 Scan End | Group6 Scan End | Group7 Scan End | Group8 Scan End | Custom event

Select one or more events to service from the selected interrupt group. You can also select the execution order for each event. This parameter allows you to manage which interrupt events the block will handle and in what order.

• Select Events:

  Each event listed under Events to serve parameter has a checkbox to select the event name, a list of event names, and an execution order.

  You can use the checkbox to select which events to handle.

  Use the Execution order drop-down list to specify the priority in which, each event should be handled. Lower numbers indicate higher priority; events with a lower execution order will be executed before those with a higher number.

  

• Filter table contents: The Filter table contents field allows you to quickly search for specific events. You can type either the event name or the execution order into this field. As shown in the image, entering a keyword, for example: ADC_1 filters the list to only show events that match the search term.

Dependencies

To enable the Output status parameter, set the Trigger mode parameter to either Trigger and read or Read results only.

Programmatic Use

Block Parameter: EventsList

Simulink task priority — Assign priority to downstream function-call subsystem

30 (default)

Specify the priority of the downstream function-call subsystem. Lower values indicate higher priority. This controls the execution precedence of the function-call subsystem triggered by the interrupt.

Programmatic Use

Block Parameter: TaskPriority

Run interrupt service routine as atomic unit — Block all other interrupts during execution

off (default) | on

Select to enable atomic execution of the interrupt service routine. When enabled, all other interrupts are blocked while the selected interrupt service routine is running.

Programmatic Use

Block Parameter: DisablePreemption

Version History

Introduced in R2026a