Infineon Multicore 1 Manuel utilisateur

AURIX™ TC2xx Microcontroller Training

V1.0.0

Multicore_1

Multicore LED control

Please read the Important Notice and Warnings at the end of this document

Scope of work

One LED is controlled by using three different cores.

Core 0 is switching on an LED. When the LED flag is set, Core 1 is switching

off the LED. Core 2 is controlling the state of the LED flag.

Introduction

›The AURIX™ TC2xx microcontroller architecture features up to three

independent processor cores, which allow seamless hosting of multiple

applications and operating systems on a unified platform.

›Due to the implementation of multiple program Flash modules with

independent read interfaces, the architecture supports further real-time

capabilities.

›AURIX™ is built for performance, safety and security, featuring parallel

execution of processes, lockstep cores and further enhanced hardware

safety mechanisms.

Hardware setup

This code example has been

developed for the board

KIT_AURIX_TC297_TFT_BC-Step.

Implementation

Configure and control the LED

An LED is toggled by CPU0 and CPU1. Before using the LED, a port pin to which the

LED is connected must be configured during the initialization phase.

›First step is to set the port pin to level “HIGH”; this keeps the LED turned off as a

default state (IfxPort_setPinHigh() function).

›Second step is to set the port pin to push-pull output mode with the

IfxPort_setPinMode() function.

Depending on the state of the global variable g_turnLEDon, either CPU0 turns the

LED on (IfxPort_setPinlow()) or CPU1 turns it off (IfxPort_setPinHigh()).

The state of the global variable g_turnLEDon is changed by CPU2 every second

using the wait() function from the header Bsp.h.

All functions used to control the port pin are declared in the iLLD header IfxPort.h.

Run and Test

After code compilation and flashing the device, observe the behavior of the

LED:

›The state of the LED D107 (1)

toggles every second

References

›More code examples can be found on the GIT repository:

›https://github.com/Infineon/AURIX_code_examples

›For additional trainings, visit our webpage:

›https://www.infineon.com/aurix-expert-training

›AURIX™ Development Studio is available online:

›https://www.infineon.com/aurixdevelopmentstudio

›Use the „Import...“ function to get access to more code examples.

›For questions and support, use the AURIX™ Forum:

›https://www.infineonforums.com/forums/13-Aurix-Forum

IMPORTANT NOTICE

The information given in this document shall in no

event be regarded as a guarantee of conditions or

characteristics (“Beschaffenheitsgarantie”).

With respect to any examples, hints or any typical

values stated herein and/or any information

regarding the application of the product, Infineon

Technologies hereby disclaims any and all

warranties and liabilities of any kind, including

without limitation warranties of non-infringement

of intellectual property rights of any third party.

In addition, any information given in this

document is subject to customer’s compliance

with its obligations stated in this document and

any applicable legal requirements, norms and

standards concerning customer’s products and

any use of the product of Infineon Technologies in

customer’s applications.

The data contained in this document is exclusively

intended for technically trained staff. It is the

responsibility of customer’s technical

departments to evaluate the suitability of the

product for the intended application and the

completeness of the product information given in

this document with respect to such application.

For further information on the product,

technology, delivery terms and conditions and

prices please contact your nearest Infineon

Technologies office (www.infineon.com).

WARNINGS

Due to technical requirements products may

contain dangerous substances. For information

on the types in question please contact your

nearest Infineon Technologies office.

Except as otherwise explicitly approved by

Infineon Technologies in a written document

signed by authorized representatives of Infineon

Technologies, Infineon Technologies’ products

may not be used in any applications where a

failure of the product or any consequences of the

use thereof can reasonably be expected to result

in personal injury.

Edition 2020-01

Published by

Infineon Technologies AG

81726 Munich, Germany

Do you have a question about this

document?

Email: erratum@infineon.com

Document reference

Multicore_1

Trademarks

All referenced product or service names and trademarks are the property of their respective owners.

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