Infineon Multicore 1 User manual

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.
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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.
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Hardware setup
This code example has been
developed for the board
KIT_AURIX_TC297_TFT_BC-Step.
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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.
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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
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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
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2020-01-17 Copyright © Infineon Technologies AG 2020. All rights reserved.

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
© 2020 Infineon Technologies AG.
All Rights Reserved.
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Multicore_1
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