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| # PSoC™ 6 MCU: QSPI flash read and write using SFDP | |
| This code example demonstrates interfacing with an external NOR flash memory in Quad-SPI mode using the serial memory interface (SMIF) block in PSoC™ 6 MCU. This example uses the serial flash discoverable parameters (SFDP) standard to auto-discover the flash parameters and the commands for read, program, and erase operations. | |
| [View this README on GitHub.](https://github.com/Infineon/mtb-example-psoc6-qspi-readwrite-sfdp) | |
| [Provide feedback on this code example.](https://cypress.co1.qualtrics.com/jfe/form/SV_1NTns53sK2yiljn?Q_EED=eyJVbmlxdWUgRG9jIElkIjoiQ0UyMjg5NTQiLCJTcGVjIE51bWJlciI6IjAwMi0yODk1NCIsIkRvYyBUaXRsZSI6IlBTb0MmdHJhZGU7IDYgTUNVOiBRU1BJIGZsYXNoIHJlYWQgYW5kIHdyaXRlIHVzaW5nIFNGRFAiLCJyaWQiOiJ2YWlyIiwiRG9jIHZlcnNpb24iOiIzLjEuMCIsIkRvYyBMYW5ndWFnZSI6IkVuZ2xpc2giLCJEb2MgRGl2aXNpb24iOiJNQ0QiLCJEb2MgQlUiOiJJQ1ciLCJEb2MgRmFtaWx5IjoiUFNPQyJ9) | |
| ## Requirements | |
| - [ModusToolbox™ software](https://www.infineon.com/modustoolbox) v3.1 or later (tested with v3.1) | |
| - Board support package (BSP) minimum required version: 4.0.0 | |
| - Programming language: C | |
| - Associated parts: All [PSoC™ 6 MCU](https://www.infineon.com/cms/en/product/microcontroller/32-bit-psoc-arm-cortex-microcontroller/psoc-6-32-bit-arm-cortex-m4-mcu) parts, [AIROC™ CYW20735 Bluetooth® & Bluetooth® LE system on chip](https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-bluetooth-le-bluetooth-multiprotocol), [AIROC™ CYW20819 Bluetooth® & Bluetooth® LE system on chip](https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-bluetooth-le-bluetooth-multiprotocol/airoc-bluetooth-le-bluetooth/cyw20819/?redirId=204689), [AIROC™ CYW43012 Wi-Fi & Bluetooth® combo chip](https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/cyw43012), [AIROC™ CYW4343W Wi-Fi & Bluetooth® combo chip](https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/cyw4343w), [AIROC™ CYW4373 Wi-Fi & Bluetooth® combo chip](https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/cyw4373), [AIROC™ CYW43439 Wi-Fi & Bluetooth® combo chip](https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/cyw43439) | |
| ## Supported toolchains (make variable 'TOOLCHAIN') | |
| - GNU Arm® embedded compiler v11.3.1 (`GCC_ARM`) - Default value of `TOOLCHAIN` | |
| - Arm® compiler v6.16 (`ARM`) | |
| - IAR C/C++ compiler v9.30.1 (`IAR`) | |
| ## Supported kits (make variable 'TARGET') | |
| - [PSoC™ 6 Wi-Fi Bluetooth® Prototyping Kit](https://www.infineon.com/CY8CPROTO-062-4343W) (`CY8CPROTO-062-4343W`) – Default value of `TARGET` | |
| - [PSoC™ 6 Wi-Fi Bluetooth® Pioneer Kit](https://www.infineon.com/CY8CKIT-062-WIFI-BT) (`CY8CKIT-062-WIFI-BT`) | |
| - [PSoC™ 6 Bluetooth® LE Pioneer Kit](https://www.infineon.com/CY8CKIT-062-BLE) (`CY8CKIT-062-BLE`) | |
| - [PSoC™ 62S1 Wi-Fi Bluetooth® Pioneer Kit](https://www.infineon.com/CYW9P62S1-43438EVB-01) (`CYW9P62S1-43438EVB-01`) | |
| - [PSoC™ 62S1 Wi-Fi Bluetooth® Pioneer Kit](https://www.infineon.com/CYW9P62S1-43012EVB-01) (`CYW9P62S1-43012EVB-01`) | |
| - [PSoC™ 62S2 Wi-Fi Bluetooth® Pioneer Kit](https://www.infineon.com/CY8CKIT-062S2-43012) (`CY8CKIT-062S2-43012`) | |
| - [PSoC™ 62S2 Wi-Fi Bluetooth® Prototyping Kit](https://www.infineon.com/CY8CPROTO-062S2-43439) (`CY8CPROTO-062S2-43439`) | |
| - [PSoC™ 62S3 Wi-Fi Bluetooth® Prototyping Kit](https://www.infineon.com/CY8CPROTO-062S3-4343W) (`CY8CPROTO-062S3-4343W`) | |
| - [PSoC™ 64 "Secure Boot" Wi-Fi Bluetooth® Pioneer Kit](https://www.infineon.com/CY8CKIT-064B0S2-4343W) (`CY8CKIT-064B0S2-4343W`) | |
| - [PSoC™ 64 "Secure Boot" Prototyping Kit](https://www.infineon.com/CY8CPROTO-064B0S3) (`CY8CPROTO-064B0S3`) | |
| - [PSoC™ 62S4 Pioneer Kit](https://www.infineon.com/CY8CKIT-062S4) (`CY8CKIT-062S4`) | |
| - [PSoC™ 62S2 Evaluation Kit](https://www.infineon.com/CY8CEVAL-062S2) (`CY8CEVAL-062S2`, `CY8CEVAL-062S2-LAI-4373M2`, `CY8CEVAL-062S2-LAI-43439M2`, `CY8CEVAL-062S2-MUR-43439M2`, `CY8CEVAL-062S2-MUR-4373EM2`) | |
| ## Hardware setup | |
| This example uses the board's default configuration. See the kit user guide to ensure that the board is configured correctly. | |
| **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. The ModusToolbox™ software 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](https://github.com/Infineon/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". | |
| ## Software setup | |
| Install a terminal emulator if you don't have one. Instructions in this document use [Tera Term](https://ttssh2.osdn.jp/index.html.en). | |
| This example requires no additional software or tools. | |
| ## Using the code example | |
| Create the project and open it using one of the following: | |
| <details><summary><b>In Eclipse IDE for ModusToolbox™ software</b></summary> | |
| 1. Click the **New Application** link in the **Quick Panel** (or, use **File** > **New** > **ModusToolbox™ Application**). This launches the [Project Creator](https://www.infineon.com/ModusToolboxProjectCreator) tool. | |
| 2. Pick a kit supported by the code example from the list shown in the **Project Creator - Choose Board Support Package (BSP)** dialog. | |
| When you select a supported kit, the example is reconfigured automatically to work with the kit. To work with a different supported kit later, use the [Library Manager](https://www.infineon.com/ModusToolboxLibraryManager) to choose the BSP for the supported kit. You can 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. | |
| If you want to use the application 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. In the **Project Creator - Select Application** dialog, choose the example by enabling the checkbox. | |
| 4. (Optional) Change the suggested **New Application Name**. | |
| 5. 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. | |
| 6. Click **Create** to complete the application creation process. | |
| For more details, see the [Eclipse IDE for ModusToolbox™ software user guide](https://www.infineon.com/MTBEclipseIDEUserGuide) (locally available at *{ModusToolbox™ software install directory}/docs_{version}/mt_ide_user_guide.pdf*). | |
| </details> | |
| <details><summary><b>In command-line interface (CLI)</b></summary> | |
| 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](https://github.com/Infineon?q=bsp-manifest&type=&language=&sort=) manifest | Required | |
| `--app-id` | Defined in the `<id>` field of the [CE](https://github.com/Infineon?q=ce-manifest&type=&language=&sort=) 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 | |
| <br /> | |
| The following example clones the "[Hello world](https://github.com/Infineon/mtb-example-psoc6-hello-world)" application with the desired name "MyHelloWorld" configured for the *CY8CKIT-062-WIFI-BT* BSP into the specified working directory, *C:/mtb_projects*: | |
| ``` | |
| project-creator-cli --board-id CY8CKIT-062-WIFI-BT --app-id mtb-example-psoc6-hello-world --user-app-name MyHelloWorld --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](https://www.infineon.com/ModusToolboxUserGuide) (locally available at *{ModusToolbox™ software install directory}/docs_{version}/mtb_user_guide.pdf*). | |
| To work with a different supported kit later, use the [Library Manager](https://www.infineon.com/ModusToolboxLibraryManager) to choose the BSP for the supported kit. You can invoke the Library Manager GUI tool from the terminal using `make library-manager` command or use the Library Manager CLI tool "library-manager-cli" to change the BSP. | |
| The "library-manager-cli" tool has the following arguments: | |
| Argument | Description | Required/optional | |
| ---------|-------------|----------- | |
| `--add-bsp-name` | Name of the BSP that should be added to the application | Required | |
| `--set-active-bsp` | Name of the BSP that should be as active BSP for the application | Required | |
| `--add-bsp-version`| Specify the version of the BSP that should be added to the application if you do not wish to use the latest from manifest | Optional | |
| `--add-bsp-location`| Specify the location of the BSP (local/shared) if you prefer to add the BSP in a shared path | Optional | |
| <br /> | |
| Following example adds the CY8CPROTO-062-4343W BSP to the already created application and makes it the active BSP for the app: | |
| ``` | |
| ~/ModusToolbox/tools_{version}/library-manager/library-manager-cli --project "C:/mtb_projects/MyHelloWorld" --add-bsp-name CY8CPROTO-062-4343W --add-bsp-version "latest-v4.X" --add-bsp-location "local" | |
| ~/ModusToolbox/tools_{version}/library-manager/library-manager-cli --project "C:/mtb_projects/MyHelloWorld" --set-active-bsp APP_CY8CPROTO-062-4343W | |
| ``` | |
| </details> | |
| <details><summary><b>In third-party IDEs</b></summary> | |
| Use one of the following options: | |
| - **Use the standalone [Project Creator](https://www.infineon.com/ModusToolboxProjectCreator) tool:** | |
| 1. Launch Project Creator from the Windows Start menu or from *{ModusToolbox™ software install directory}/tools_{version}/project-creator/project-creator.exe*. | |
| 2. In the initial **Choose Board Support Package** screen, select the BSP, and click **Next**. | |
| 3. In the **Select Application** screen, select the appropriate IDE from the **Target IDE** drop-down menu. | |
| 4. Click **Create** and follow the instructions printed in the bottom pane to import or open the exported project in the respective IDE. | |
| <br /> | |
| - **Use command-line interface (CLI):** | |
| 1. Follow the instructions from the **In command-line interface (CLI)** section to create the application. | |
| 2. Export the application to a supported IDE using the `make <ide>` command. | |
| 3. 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](https://www.infineon.com/ModusToolboxUserGuide) (locally available at *{ModusToolbox™ software install directory}/docs_{version}/mtb_user_guide.pdf*). | |
| </details> | |
| ## 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](https://www.infineon.com/dgdlac/Infineon-PSoC_64_Secure_MCU_Secure_Boot_SDK_User_Guide-Software-v07_00-EN.pdf?fileId=8ac78c8c7d0d8da4017d0f8c361a7666) 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: | |
| <details><summary><b>Using Eclipse IDE for ModusToolbox™ software</b></summary> | |
| 1. Select the application project in the Project Explorer. | |
| 2. In the **Quick Panel**, scroll down, and click **\<Application Name> Program (KitProg3_MiniProg4)**. | |
| </details> | |
| <details><summary><b>Using CLI</b></summary> | |
| 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 | |
| ``` | |
| </details> | |
| 4. After programming, the application starts automatically. Confirm that the UART terminal displays the following: | |
| **Figure 1. Terminal output on program startup** | |
|  | |
| 5. Observe the user LED to determine the status of the read write operation. | |
| - LED is blinking: Successful operation | |
| - LED is always ON: Failed operation | |
| ## Debugging | |
| You can debug the example 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](https://www.infineon.com/MTBEclipseIDEUserGuide). | |
| **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](https://community.infineon.com/docs/DOC-21143) to learn about this and for the workaround. | |
| ## Design and implementation | |
| This example uses the QSPI hardware block for interfacing with the external memory through four data lines and one slave select line. This example writes 64 bytes of data to the external memory in Quad SPI mode. The written data is read back to check its integrity. The UART resource outputs debug information to a terminal window. A user LED indicates the status of the read and write operation. | |
| This example uses the SFDP standard to auto-discover all the flash parameters and the commands for read/program/erase operations. See [CE220823](https://github.com/Infineon/mtb-example-psoc6-qspi-readwrite) that uses the predefined command structures generated using the QSPI configurator tool to work with the flash. The PDL driver files *cy_smif_memslot.c/.h* implement the SFDP feature. | |
| This example uses the [serial-flash](https://github.com/Infineon/serial-flash) library along with the memory configuration populated using the SFDP protocol. The template command structures defined in design.cyqspi files located under the *templates/TARGET_BSPs* directory are populated after the SFDP discovery. You can generate these files using the QSPI Configurator tool by specifying **Auto detect SFDP** under the **Memory Part Number** field. | |
| The QSPI configurator tool can be accessed from the **Quick Panel** in the Eclipse IDE for ModusToolbox™ software. Note that if you open the tool from the Quick Panel, the tool uses the QSPI configuration file (*design.cyqspi*) provided with the BSP and generates the memory configuration files under *GeneratedSource* directory in the BSP. However, this example uses the memory configuration file available in the *templates* directory which you can open in the tool using **File** > **Open**. | |
| ### Resources and settings | |
| **Table 1. Application resources** | |
| | Resource | Alias/object | Purpose | | |
| | :--------- | :---------------------- | :----------------------------------------------------------- | | |
| | QSPI (HAL) | qspi_obj | QSPI HAL object used by serial-flash library for QSPI communication | | |
| | 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 application status | | |
| <br /> | |
| ## Related resources | |
| Resources | Links | |
| -----------|---------------------------------- | |
| Application notes | [AN228571](https://www.infineon.com/AN228571) – Getting started with PSoC™ 6 MCU on ModusToolbox™ software <br /> [AN215656](https://www.infineon.com/AN215656) – PSoC™ 6 MCU: Dual-CPU system design | |
| Code examples | [Using ModusToolbox™ software](https://github.com/Infineon/Code-Examples-for-ModusToolbox-Software) on GitHub <br /> | |
| Device documentation | [PSoC™ 6 MCU datasheets](https://documentation.infineon.com/html/psoc6/bnm1651211483724.html) <br /> [PSoC™ 6 technical reference manuals](https://documentation.infineon.com/html/psoc6/zrs1651212645947.html) | | |
| Development kits | Select your kits from the [evaluation board finder](https://www.infineon.com/cms/en/design-support/finder-selection-tools/product-finder/evaluation-board) | |
| Libraries on GitHub | [mtb-pdl-cat1](https://github.com/Infineon/mtb-pdl-cat1) – PSoC™ 6 peripheral driver library (PDL) <br /> [mtb-hal-cat1](https://github.com/Infineon/mtb-hal-cat1) – Hardware abstraction layer (HAL) library <br /> [retarget-io](https://github.com/Infineon/retarget-io) – Utility library to retarget STDIO messages to a UART port <br /> [mtb-pdl-cat2](https://github.com/Infineon/mtb-pdl-cat2) – PSoC™ 4 peripheral driver library (PDL) <br /> [mtb-hal-cat2](https://github.com/Infineon/mtb-hal-cat2) – Hardware abstraction layer (HAL) library | |
| Middleware on GitHub | [capsense](https://github.com/Infineon/capsense) – CAPSENSE™ library and documents <br /> [psoc6-middleware](https://github.com/Infineon/modustoolbox-software#psoc-6-middleware-libraries) – Links to all PSoC™ 6 MCU middleware | |
| Tools | [Eclipse IDE for ModusToolbox™ software](https://www.infineon.com/modustoolbox) – 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. <br /> | |
| <br /> | |
| ## 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](https://community.infineon.com/docs/DOC-14644) in the Infineon Developer community. | |
| ## Document history | |
| Document title: *CE228954* - *PSoC™ 6 MCU QSPI flash read and write using SFDP* | |
| | Version | Description of change | | |
| | ------- | ---------------------------------------------------------- | | |
| | 1.0.0 | New code example | | |
| | 1.1.0 | Updated to support ModusToolbox™ software v2.1 and new kits | | |
| | 2.0.0 | Updated to support ModusToolbox™ software v2.3 and new kits | | |
| | 3.0.0 | Major update to support ModusToolbox™ v3.0 and BSPs v4.X.<br> This version is not backward compatible with previous versions of ModusToolbox | | |
| | 3.1.0 | Updated to support ModusToolbox™ v3.1 and added support for CY8CEVAL-062S2-LAI-43439M2, CY8CEVAL-062S2-MUR-43439M2, CY8CEVAL-062S2-MUR-4373EM2 and CY8CPROTO-062S2-43439 | | |
| ------ | |
| <br> | |
| --------------------------------------------------------- | |
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