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This code example demonstrates the use of a SPI (HAL) resource in slave mode. The SPI slave is configured to receive command packets to control an user LED on the kit.

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HAL: SPI slave

This code example demonstrates the use of a SPI (HAL) resource in slave mode. The SPI slave is configured to receive command packets to control an user LED on the kit.

View this README on GitHub.

Provide feedback on this code example.

Requirements

  • ModusToolbox™ v3.2 or later (tested with v3.2)
  • Board support package (BSP) minimum required version for:
    • CYW920829M2EVK-02: v1.0.1
    • CYW989829M2EVB-01: v1.0.4
    • CYW989829M2EVB-03: v1.0.4
    • PSoC™ 6 MCU: v4.2.0
    • KIT_XMC72_EVK: v1.0.0
  • Programming language: C
  • Associated parts: All PSoC™ 6 MCU parts, XMC7000 MCU,AIROC™ CYW20829 Bluetooth® LE SoC,[AIROC™ CYW89829 Bluetooth® LE SoC]

Supported toolchains (make variable 'TOOLCHAIN')

  • GNU Arm® Embedded Compiler v11.3.1 (GCC_ARM) – Default value of TOOLCHAIN
  • Arm® Compiler v6.22 (ARM)
  • IAR C/C++ Compiler v9.30.1 (IAR)

Supported kits (make variable 'TARGET')

Hardware setup

This example uses the board's default configuration. See the kit user guide to ensure that the board is configured correctly.

Two devices are required to verify the output: one for the master and one for the slave.

  1. Use the mtb-example-hal-spi-master example to run as SPI master on the second kit.

  2. Connect the CYBSP_SPI_SCLK, CYBSP_SPI_MOSI, CYBSP_SPI_MISO and CYBSP_SPI_CS pins of the master to the CYBSP_SPI_SCLK, CYBSP_SPI_MOSI, CYBSP_SPI_MISO and CYBSP_SPI_CS pins of slave using jumper wires.

Note: The PSoC™ 6 Bluetooth® LE Pioneer Kit (CY8CKIT-062-BLE) and the PSoC™ 6 Wi-Fi Bluetooth® Pioneer Kit (CY8CKIT-062-WIFI-BT) ship with KitProg2 installed. ModusToolbox™ requires KitProg3. Before using this code example, make sure that the board is upgraded to KitProg3. The tool and instructions are available in the Firmware Loader GitHub repository. If you do not upgrade, you will see an error like "unable to find CMSIS-DAP device" or "KitProg firmware is out of date".

The AIROC™ CYW20829 Bluetooth® kit (CYW920829M2EVK-02) ships with KitProg3 version 2.21 installed. The ModusToolbox™ software requires KitProg3 with latest version 2.40. Before using this code example, make sure that the board is upgraded to KitProg3. The tool and instructions are available in the Firmware Loader GitHub repository. If you do not upgrade, you will see an error such as "unable to find CMSIS-DAP device" or "KitProg firmware is out of date".

In AIROC™ CYW20829 Bluetooth® kit (CYW920829M2EVK-02,CYW989829M2EVB-03) the SPI (CS, CLK) and User Button2, USER LED1 share the same GPIOs, while you need SPI USER LED1 will be glowing based on SPI CLK activity. The SWD and SPI (MOSI, MISO) interfaces share the same GPIOs and must use one interface at a time. See the table below to make SPI connections:

SPI signal SCB pin Header pin
SCLK P1[1] J18.1
MOSI P1[2] J4.6
MISO P1[3] J4.5
CS P1[0] J4.4

In AIROC™ CYW89829 Bluetooth® kit (CYW989829M2EVB-01).See the table below to make SPI connections:

SPI signal SCB pin Header pin
SCLK P0[4] J7.3
MOSI P0[2] J9.3
MISO P0[3] J9.4
CS P0[0] J6.5

Note: This code examples provides the custom design.modus files under template directory for few BSPs, because these BSPs do not have aliases for the SPI pins by default (e.g. CYBSP_SPI_MOSI, CYBSP_SPI_MISO, CYBSP_SPI_SCLK, CYBSP_SPI_CS). The other BSPs already have those aliases defined in the default design.modus file, thus do not need any customization.

Software setup

See the ModusToolbox™ tools package installation guide for information about installing and configuring the tools package.

Install a terminal emulator if you don't have one. Instructions in this document use Tera Term.

Using the code example

Create the project

The ModusToolbox™ tools package provides the Project Creator as both a GUI tool and a command line tool.

Use Project Creator GUI

  1. Open the Project Creator GUI tool.

    There are several ways to do this, including launching it from the dashboard or from inside the Eclipse IDE. For more details, see the Project Creator user guide (locally available at {ModusToolbox™ install directory}/tools_{version}/project-creator/docs/project-creator.pdf).

  2. On the Choose Board Support Package (BSP) page, select a kit supported by this code example. See Supported kits.

    Note: To use this code example for a kit not listed here, you may need to update the source files. If the kit does not have the required resources, the application may not work.

  3. On the Select Application page:

    a. Select the Applications(s) Root Path and the Target IDE.

    Note: Depending on how you open the Project Creator tool, these fields may be pre-selected for you.

    b. Select this code example from the list by enabling its check box.

    Note: You can narrow the list of displayed examples by typing in the filter box.

    c. (Optional) Change the suggested New Application Name and New BSP Name.

    d. Click Create to complete the application creation process.

Use Project Creator CLI

The 'project-creator-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™ 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™ installation instead of a standard Windows command-line application. This shell provides access to all ModusToolbox™ 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 following example clones the "SPI Slave" application with the desired name "SpiSlave" configured for the CY8CPROTO-062S2-43439 BSP into the specified working directory, C:/mtb_projects:

project-creator-cli --board-id CY8CPROTO-062S2-43439 --app-id mtb-example-hal-spi-slave --user-app-name SpiSlave --target-dir "C:/mtb_projects"

The 'project-creator-cli' tool has the following arguments:

Argument Description Required/optional
--board-id Defined in the field of the BSP manifest Required
--app-id Defined in the 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

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™ tools package user guide (locally available at {ModusToolbox™ install directory}/docs_{version}/mtb_user_guide.pdf).

Open the project

After the project has been created, you can open it in your preferred development environment.

Eclipse IDE

If you opened the Project Creator tool from the included Eclipse IDE, the project will open in Eclipse automatically.

For more details, see the Eclipse IDE for ModusToolbox™ user guide (locally available at {ModusToolbox™ install directory}/docs_{version}/mt_ide_user_guide.pdf).

Visual Studio (VS) Code

Launch VS Code manually, and then open the generated {project-name}.code-workspace file located in the project directory.

For more details, see the Visual Studio Code for ModusToolbox™ user guide (locally available at {ModusToolbox™ install directory}/docs_{version}/mt_vscode_user_guide.pdf).

Keil µVision

Double-click the generated {project-name}.cprj file to launch the Keil µVision IDE.

For more details, see the Keil µVision for ModusToolbox™ user guide (locally available at {ModusToolbox™ install directory}/docs_{version}/mt_uvision_user_guide.pdf).

IAR Embedded Workbench

Open IAR Embedded Workbench manually, and create a new project. Then select the generated {project-name}.ipcf file located in the project directory.

For more details, see the IAR Embedded Workbench for ModusToolbox™ user guide (locally available at {ModusToolbox™ install directory}/docs_{version}/mt_iar_user_guide.pdf).

Command line

If you prefer to use the CLI, open the appropriate terminal, and navigate to the project directory. On Windows, use the command-line 'modus-shell' program; on Linux and macOS, you can use any terminal application. From there, you can run various make commands.

For more details, see the ModusToolbox™ tools package user guide (locally available at {ModusToolbox™ install directory}/docs_{version}/mtb_user_guide.pdf).

Operation

If using a PSoC™ 64 "Secure" MCU kit (like CY8CKIT-064B0S2-4343W), the PSoC™ 64 device must be provisioned with keys and policies before being programmed. Follow the instructions in the "Secure Boot" SDK user guide to provision the device. If the kit is already provisioned, copy-paste the keys and policy folder to the application folder.

  1. Connect the board to your PC using the provided USB cable through the KitProg3 USB connector.

  2. Open a terminal program and select the KitProg3 COM port. Set the serial port parameters to 8N1 and 115200 baud.

  3. Program the board using one of the following:

    Using Eclipse IDE

    1. Select the application project in the Project Explorer.

    2. In the Quick Panel, scroll down, and click <Application Name> Program (KitProg3_MiniProg4).

    In other IDEs

    Follow the instructions in your preferred IDE.

    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 is specified in the application's Makefile but you can override this value manually:

    make program TOOLCHAIN=<toolchain>

    Example:

    make program TOOLCHAIN=GCC_ARM

  4. After programming, the application starts automatically. Confirm that the UART terminal displays as shown in Figure 1.

    Figure 1. Terminal output on program startup

  5. After a successful connection with the master, the LED blinks every second. Note: For CYW989829M2EVB-03 board, use Blue LED to blink.

Debugging

You can debug the example to step through the code.

In Eclipse 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™ user guide.

Note: (Only while debugging) On the CM4 CPU, some code in main() may execute before the debugger halts at the beginning of main(). This means that some code executes twice – once before the debugger stops execution, and again after the debugger resets the program counter to the beginning of main(). See KBA231071 to learn about this and for the workaround.

In other IDEs

Follow the instructions in your preferred IDE.

Design and implementation

The Arm® Cortex® CPU controls the slave SPI resource. The slave receives the packets from the master with the command to turn ON or OFF the user LED. The packets are received at an interval of one second.

Resources and settings

Table 1. Application resources

Resource Alias/object Purpose
SPI (HAL) sSPI Slave SPI
UART (HAL) cy_retarget_io_uart_obj UART HAL object used by retarget-io for debug UART port
GPIO (HAL) CYBSP_USER_LED User LED to show visual output

Related resources

Resources Links
Application notes AN228571 – Getting started with PSoC™ 6 MCU on ModusToolbox™
AN215656 – PSoC™ 6 MCU: Dual-CPU system design
AN234334 – Getting started with XMC7000 MCU on ModusToolbox™ software
Code examples Using ModusToolbox™ on GitHub
Device documentation PSoC™ 6 MCU datasheets
PSoC™ 6 MCU technical reference manuals
XMC7000 MCU datasheets
XMC7000 technical reference manuals
AIROC™ CYW20829 Bluetooth® LE SoC
AIROC™ CYW89829 Bluetooth® LE SoC
Development kits Select your kits from the Evaluation board finder
Libraries on GitHub mtb-hal-cat1 – Hardware Abstraction Layer (HAL) library
retarget-io – Utility library to retarget STDIO messages to a UART port
Middleware on GitHub capsense – CAPSENSE™ library and documents
psoc6-middleware – Links to all PSoC™ 6 MCU middleware
Tools ModusToolbox™ – ModusToolbox™ software is a collection of easy-to-use libraries and tools enabling rapid development with Infineon MCUs for applications ranging from wireless and cloud-connected systems, edge AI/ML, embedded sense and control, to wired USB connectivity using PSoC™ Industrial/IoT MCUs, AIROC™ Wi-Fi and Bluetooth® connectivity devices, XMC™ Industrial MCUs, and EZ-USB™/EZ-PD™ wired connectivity controllers. ModusToolbox™ incorporates a comprehensive set of BSPs, HAL, libraries, configuration tools, and provides support for industry-standard IDEs to fast-track your embedded application development.

Other resources

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.

For PSoC™ 6 MCU devices, see How to design with PSoC™ 6 MCU - KBA223067 in the Infineon Developer community.

For XMC™ MCU devices, see 32-bit XMC™ Industrial microcontroller based on Arm® Cortex®-M.

Document history

Document title: CE236720 - HAL: SPI slave

Version Description of change
1.0.0 New code example
1.1.0 Removed CYW920829M2EVB-01 from supported kits
Added support for CYBLE-416045-EVAL and CYW920829M2EVK-02
1.1.1 Readme Update
1.1.2 Minor README update
1.2.0 Added support for KIT_XMC72_EVK_MUR_43439M2 and updated to support ModusToolbox™ v3.1.
1.3.0 Added support for KIT_XMC71_EVK_LITE_V1, CY8CEVAL-062S2-LAI-43439M2, CY8CEVAL-062S2-MUR-4373EM2, CY8CEVAL-062S2-MUR-4373M2
1.4.0 Added support for CYW989829M2EVB-01.
1.5.0 Added support for CYW989829M2EVB-03.
1.5.1 Updated the design.modus for CYW989829M2EVB-03

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

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc., and any use of such marks by Infineon is under license.

© Cypress Semiconductor Corporation, 2022-2023. This document is the property of Cypress Semiconductor Corporation, an Infineon Technologies company, and its affiliates ("Cypress"). This document, including any software or firmware included or referenced in this document ("Software"), is owned by Cypress under the intellectual property laws and treaties of the United States and other countries worldwide. Cypress reserves all rights under such laws and treaties and does not, except as specifically stated in this paragraph, grant any license under its patents, copyrights, trademarks, or other intellectual property rights. If the Software is not accompanied by a license agreement and you do not otherwise have a written agreement with Cypress governing the use of the Software, then Cypress hereby grants you a personal, non-exclusive, nontransferable license (without the right to sublicense) (1) under its copyright rights in the Software (a) for Software provided in source code form, to modify and reproduce the Software solely for use with Cypress hardware products, only internally within your organization, and (b) to distribute the Software in binary code form externally to end users (either directly or indirectly through resellers and distributors), solely for use on Cypress hardware product units, and (2) under those claims of Cypress's patents that are infringed by the Software (as provided by Cypress, unmodified) to make, use, distribute, and import the Software solely for use with Cypress hardware products. Any other use, reproduction, modification, translation, or compilation of the Software is prohibited.
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This code example demonstrates the use of a SPI (HAL) resource in slave mode. The SPI slave is configured to receive command packets to control an user LED on the kit.

Topics

peripherals cy8ckit-062-wifi-bt cy8cproto-062-4343w cy8ckit-062-ble cy8cproto-063-ble cy8ckit-062s2-43012 cy8cproto-062s3-4343w cyw9p62s1-43438evb-01 cyw9p62s1-43012evb-01 cy8ckit-064b0s2-4343w cy8ckit-062s4 cy8ceval-062s2 cy8ceval-062s2-lai-4373m2 cy8ceval-062s2-mur-43439m2 cyble-416045-eval cy8ceval-062s2-lai-43439m2 cy8cproto-062s2-43439 cyw920829m2evk-02 cy8ceval-062s2-mur-4373em2 cy8ceval-062s2-mur-4373m2

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