EZ-PD™ PMG1 MCU: Flash write

This code example demonstrates how to write to the flash in power delivery microcontroller generation 1 (PMG1) devices.

View this README on GitHub.

Provide feedback on this code example.

Requirements

ModusToolbox™ v3.0 or later (tested with v3.0)
Board support package (BSP) minimum required version: 3.0.0
Programming language: C
Associated parts: All EZ-PD™ PMG1 MCU parts

Supported toolchains (make variable 'TOOLCHAIN')

GNU Arm® Embedded Compiler v10.3.1 (GCC_ARM) – Default value of TOOLCHAIN
Arm® Compiler v6.13 (ARM)
IAR C/C++ Compiler v8.42.2 (IAR)

Supported kits (make variable 'TARGET')

EZ-PD™ PMG1-S0 Prototyping Kit (PMG1-CY7110) - Default value of TARGET
EZ-PD™ PMG1-S1 Prototyping Kit (PMG1-CY7111)
EZ-PD™ PMG1-S2 Prototyping Kit (PMG1-CY7112)
EZ-PD™ PMG1-S3 Prototyping Kit (PMG1-CY7113)
EZ-PD™ PMG1-B1 Prototyping Kit (EVAL_PMG1_B1_DRP)
EZ-PD™ PMG1-S1 DRP Prototyping Kit (EVAL_PMG1_S1_DRP)
EZ-PD™ PMG1-S3 DUALDRP Prototyping Kit (EVAL_PMG1_S3_DUALDRP)

Hardware setup

If UART DEBUG PRINT messages are enabled, UART connection are needed. Pin connections for UART is as shown in the below table. For the following revisions of the PMG1 prototyping kits, connect the UART Tx and UART Rx lines from the PMG1 kit to J3.8 and J3.10 on KitProg3 respectively to establish a UART connection between KitProg3 and the PMG1 device.

Table 1. Pin connections for UART

PMG1 kit	UART Tx	UART Rx
PMG1-CY7110	J6.10 to J3.8	J6.9 to J3.10
PMG1-CY7111 (revision 2 or lower)	J6.10 to J3.8	J6.9 to J3.10
PMG1-CY7112 (revision 2 or lower)	J6.10 to J3.8	J6.9 to J3.10
PMG1-CY7113 (revision 3 or lower)	J6.10 to J3.8	J6.9 to J3.10
EVAL_PMG1_B1_DRP	SW5 to 1-2 position	SW4 to 1-2 position
EVAL_PMG1_S1_DRP	N/A	N/A
EVAL_PMG1_S3_DUALDRP	N/A	N/A

Note: All PMG1 protoyping kits with a higher revision have UART pins internally connected. Therefore, external wiring is not required.

See the kit user guide to ensure that the board is configured correctly.

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.

This example requires no additional software or tools.

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

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).
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.
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 "mtb-example-pmg1-flash-write" application with the desired name "MyFlashWrite" configured for the PMG1-CY7110 BSP into the specified working directory, C:/mtb_projects:

project-creator-cli --board-id PMG1-CY7110 --app-id mtb-example-pmg1-flash-write --user-app-name MyFlashWrite --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

Complete the steps listed in the Hardware setup section.
Ensure that the jumper shunt on power selection jumper (J5) is placed at position 2-3 to enable programming for PMG1-CY7110, PMG1-CY7111, PMG1-CY7112, PMG1-CY7113, EVAL_PMG1_S1_DRP and EVAL_PMG1_S3_DUALDRP prototyping kits. Skip this step for EVAL_PMG1_B1_DRP kit.
Connect the board to your PC using the USB cable through the KitProg3 USB Type-C port (J1).
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
```
After programming the kit, disconnect the USB cable. Move to the next step for EVAL_PMG1_B1_DRP kit. Change the position on the power selection jumper (J5) to 1-2 to power the kit through the USB PD port (J10) for PMG1-CY7110, PMG1-CY7111, PMG1-CY7112, PMG1-CY7113, EVAL_PMG1_S1_DRP, and EVAL_PMG1_S3_DUALDRP prototyping kits.
Connect the USB PD port J10 to a USB-C power adapter or your PC using a USB Type-C cable to power the PMG1-CY7110, PMG1-CY7111, PMG1-CY7112, PMG1-CY7113, and EVAL_PMG1_S1_DRP kits. For EVAL_PMG1_S3_DUALDRP, power the kit through the USB PD ports (J10 or J14). The EVAL_PMG1_B1_DRP kit is automatically powered when the kit is connected through the KitProg3 USB Type-C port (J1).
The application starts automatically. The status of the flash write operation is visible on the UART terminal if DEBUG_PRINT messages are enabled. Press the Reset switch (SW3) on EVAL_PMG1_B1_DRP to restart the application and see the UART prints as the application already started when the kit was connected and powered through the KitProg3 USB Type-C port (J1).

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. Ensure that the board is connected to your PC using the USB cable through the KitProg3 USB Type-C port (J1) and for PMG1-CY7110, PMG1-CY7111, PMG1-CY7112, and PMG1-CY7113 prototyping kits the jumper shunt on power selection jumper (J5) is placed at position 1-2.

See the Debug mode section in the kit user guide for debugging the application on the CY7110 prototyping kit. See the Debugging using ModusToolbox™ section in AN238945 for EVAL_PMG1_B1_DRP kit. For details, see the "Program and debug" section in the Eclipse IDE for ModusToolbox™ user guide.

In other IDEs

Follow the instructions in your preferred IDE.

Design and implementation

Memory is allocated in the flash to store the data. Explicit initialization is needed so that memory gets allocated in the flash instead of the RAM. It should be ensured that the array containing the data is an integer multiple of the flash row size so that array occupies the flash rows completely.

Figure 1. Firmware flowchart

Compile-time configurations

The EZ-PD™ PMG1 MCU Flash write application functionality can be customized through a set of compile-time parameter that can be turned ON/OFF through the main.c file.

Macro name	Description	Allowed values
`DEBUG_PRINT`	Debug print macro to enable UART print	1u to enable 0u to disable

Resources and settings

Table 1. Application resources

Resource	Alias/object	Purpose
UART (BSP)	CYBSP_UART	UART object used for Debug UART port
Flash (BSP)	-	Provides the public functions for the API for the flash driver

Related resources

Resources	Links
Application notes	AN232553 – Getting started with EZ-PD™ PMG1 MCU on ModusToolbox™ AN232565 – EZ-PD™ PMG1 hardware design guidelines and checklist AN238945 – Getting started with EZ-PD™ PMG1-B1 MCU using ModusToolbox™
Code examples	Using ModusToolbox™ on GitHub
Device documentation	EZ-PD™ PMG1 MCU datasheets
Development kits	Select your kits from the Evaluation board finder
Libraries on GitHub	mtb-pdl-cat2 – Peripheral Driver Library (PDL)
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.

Document history

Document title: CE233641 – EZ-PD™ PMG1 MCU: Flash write

Version	Description of change
1.0.0	New code example
2.0.0	Major update to support ModusToolbox™ v3.0. This version is not backward compatible with previous versions of ModusToolbox™
2.1.0	Updated to support EVAL_PMG1_B1_DRP, EVAL_PMG1_S1_DRP, and EVAL_PMG1_S3_DUALDRP kits

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