This code example demonstrates how to toggle an LED periodically using PSoC™ 4.
Provide feedback on this code example.
-
ModusToolbox™ software v3.1 or later
Note: This code example version requires ModusToolbox™ software version 3.1 or later and is not backward compatible with v3.0 or older versions.
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Board support package (BSP) minimum required version: 3.1.0
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Programming language: C
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Associated parts: PSoC™ 4000T
- GNU Arm® Embedded Compiler v11.3.1 (
GCC_ARM
) - Default value ofTOOLCHAIN
- Arm® Compiler v6.16 (
ARM
) - IAR C/C++ Compiler v9.30.1 (
IAR
)
- PSoC™ 4000T CAPSENSE™ Evaluation Kit (CY8CKIT-040T) - Default value of
TARGET
This example uses the board's default configuration. See the kit user guide to ensure that the board is configured correctly to use VDDA at 1.8 V
This example requires no additional software or tools.
Create the project and open it using one of the following:
In Eclipse IDE for ModusToolbox™ software
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Click the New Application link in the Quick Panel (or, use File > New > ModusToolbox™ Application). This launches the Project Creator tool.
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Pick a kit supported by the code example from the list shown in the Project Creator - Choose Board Support Package (BSP) dialog.
The example is reconfigured automatically to work with the kit when a supported kit is selected. To work with a different supported kit later, use the Library Manager to choose the BSP. Use the Library Manager to select or update the BSP and firmware libraries used in this application. To access the Library Manager, click the link from the Quick Panel.
You can also just start the application creation process again and select a different kit.
To use the application for a kit that is not listed here, update the source files. If the kit does not have the required resources, the application may not work.
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In the Project Creator - Select Application dialog, choose the example by enabling the checkbox.
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(Optional) Change the suggested New Application Name.
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The Application(s) Root Path defaults to the Eclipse workspace which is usually the desired location for the application. If you want to store the application in a different location, you can change the Application(s) Root Path value. Applications that share libraries should be in the same root path.
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Click Create to complete the application creation process.
For more details, see the Eclipse IDE for ModusToolbox™ software user guide (locally available at {ModusToolbox™ software install directory}/docs_{version}/mt_ide_user_guide.pdf).
In command-line interface (CLI)
ModusToolbox™ software provides the Project Creator as both a GUI tool and the command line tool, "project-creator-cli". The CLI tool can be used to create applications from a CLI terminal or from within batch files or shell scripts. This tool is available in the {ModusToolbox™ software install directory}/tools_{version}/project-creator/ directory.
Use a CLI terminal to invoke the "project-creator-cli" tool. On Windows, use the command line "modus-shell" program provided in the ModusToolbox™ software installation instead of a standard Windows command-line application. This shell provides access to all ModusToolbox™ software tools. You can access it by typing modus-shell
in the search box in the Windows menu. In Linux and macOS, you can use any terminal application.
The "project-creator-cli" tool has the following arguments:
Argument | Description | Required/optional |
---|---|---|
--board-id |
Defined in the <id> field of the BSP manifest |
Required |
--app-id |
Defined in the <id> field of the CE manifest |
Required |
--target-dir |
Specify the directory in which the application is to be created if you prefer not to use the default current working directory | Optional |
--user-app-name |
Specify the name of the application if you prefer to have a name other than the example's default name | Optional |
The following example clones the "Blinky" application with the desired name "MyBlinky" configured for the CY8CKIT-040T BSP into the specified working directory, C:/mtb_projects:
project-creator-cli --board-id CY8CKIT-040T --app-id mtb-example-psoc4-blinky --user-app-name MyBlinky --target-dir "C:/mtb_projects"
Note: The project-creator-cli tool uses the git clone
and make getlibs
commands to fetch the repository and import the required libraries. For details, see the "Project creator tools" section of the ModusToolbox™ software user guide (locally available at {ModusToolbox™ software install directory}/docs_{version}/mtb_user_guide.pdf).
In third-party IDEs
Use one of the following options:
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Use the standalone Project Creator tool:
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Launch Project Creator from the Windows Start menu or from {ModusToolbox™ software install directory}/tools_{version}/project-creator/project-creator.exe.
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In the initial Choose Board Support Package screen, select the BSP, and click Next.
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In the Select Application screen, select the appropriate IDE from the Target IDE drop-down menu.
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Click Create and follow the instructions printed in the bottom pane to import or open the exported project in the respective IDE.
-
-
Use command-line interface (CLI):
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Follow the instructions from the In command-line interface (CLI) section to create the application, and then import the libraries using the
make getlibs
command. -
Export the application to a supported IDE using the
make <ide>
command. -
Follow the instructions displayed in the terminal to create or import the application as an IDE project.
-
For a list of supported IDEs and more details, see the "Exporting to IDEs" section of the ModusToolbox™ software user guide (locally available at {ModusToolbox™ software install directory}/docs_{version}/mtb_user_guide.pdf).
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Connect the board to your PC using the provided USB cable through the KitProg3 USB connector.
Figure 1. Connecting the CY8CKIT-040T kit
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Program the board using one of the following:
Using Eclipse IDE for ModusToolbox™ software
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Select the application project in the Project Explorer.
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In the Quick Panel, scroll down, and click <Application Name> Program (KitProg3_MiniProg4).
Using CLI
From the terminal, execute the
make program
command to build and program the application using the default toolchain to the default target. The default toolchain and target are specified in the application's Makefile but you can override this value manually:make program TARGET=<BSP> TOOLCHAIN=<toolchain>
Example:
make program TARGET=CY8CKIT-040T TOOLCHAIN=GCC_ARM
-
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After programming, the application starts automatically.
Note: After programming, you see the following error message if debug mode is disabled. This can be ignored or enabling debug solves this error.
"Error: Error connecting Dp: Cannot read IDR"
- Confirm that the kit LED blinks at approximately 1 Hz.
CY8CKIT-040T kit supports operating voltages of 1.8 V, 3.3 V, and 5 V. Use voltage selection switch available on top of the kit to set the preferred operating voltage and see the setup the VDDA supply voltage and Debug mode section .
- Create a custom BSP for your board having any device, by following the steps given in ModusToolbox™ BSP Assistant user guide. This code example was created for the device "CY8C4046LQI-T452".
You can debug this project to step through the code. In the IDE, use the <Application Name> Debug (KitProg3_MiniProg4) configuration in the Quick Panel. For details, see the "Program and debug" section in the Eclipse IDE for ModusToolbox™ software user guide.
By default, the debug option is disabled in the device configurator. To enable the debug option, see the Setup VDDA and Debug mode section. To achieve low power consumption, it is recommended to disable it.
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Open Device Configurator from the Quick Panel.
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Go to the System tab. Select the Power resource, and set the VDDA value under Operating conditions as follows:
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By default, the debug mode is disabled for this application to reduce power consumption. Enable the debug mode to enable the SWD pins as follows:
Table 1. Application resources
Resource | Alias/object | Purpose |
---|---|---|
Digital pin | CYBSP_USER_LED | User LED to show output |
The application blinks an LED by controlling the GPIO output.
Resources | Links |
---|---|
Application notes | AN79953 – Getting started with PSoC™ 4 |
Code examples | Using ModusToolbox™ software on GitHub |
Device documentation | Download datasheets, TRMs, and other documents from the PSoC™ 4 product page |
Development kits | Select your kits from the Evaluation Board Finder page. |
Libraries on GitHub | mtb-pdl-cat2 – PSoC™ 4 Peripheral Driver Library (PDL) mtb-hal-cat2 – Hardware Abstraction Layer (HAL) library |
Middleware on GitHub | capsense – CAPSENSE™ library and documents |
Tools | Eclipse IDE for ModusToolbox™ software – ModusToolbox™ software is a collection of easy-to-use software and tools enabling rapid development with Infineon MCUs, covering applications from embedded sense and control to wireless and cloud-connected systems using AIROC™ Wi-Fi and Bluetooth® connectivity devices. |
Infineon provides a wealth of data at www.infineon.com to help you select the right device, and quickly and effectively integrate it into your design.
Document title: CE235475 – PSoC™ 4: Blinky
Version | Description of change |
---|---|
1.0.0 | New code example |
1.0.1 | Minor readme update |
1.1.0 | Minor folder structure changes that does not break backward compatibility |
2.0.0 | Major update to support ModusToolbox™ v3.1 This version is not backward compatible with ModusToolbox™ v3.0 |
2.1.0 | Minor update in the Pin Configuration |
2.1.1 | Minor configuration and read me update |
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