Getting Started with the LPC5536/LPC55S36 Evaluation Board

1. Build and Flash Cortex-M33 Application

The following steps will guide you through the hello_world demo application using MCUXpresso IDE for the Cortex-M33 application. The MCUXpresso IDE installation can be found at the section “2. Get Software” of this Getting Started guide.

1. Open the MCUXpresso IDE
2. Switch to the Installed SDKs view within the MCUXpresso IDE window

3. Drag and drop the LPC55S36 SDK (zipped) file into the Installed SDKs view.
4. You will get the following pop-up. Click on OK to continue the import:

5. The installed SDK will appear in the Installed SDKs view as shown below:

6. Then click on Import SDK example(s)...

7. Click on the LPCXpresso55S36 board to select that you want to import an example that can run on that board, and then click on Next

8. Use the arrow button to expand the demo_apps category, and then click the checkbox next to hello_world to select that project. To use the UART for printing (instead of the default semihosting), select UART as the SDK Debug Console checkbox under the project options. Then, click on Finish.

9. Select the project and build it.

10. The project will build without problems.

11. Connect the board to your computer with the micro USB to J40 ‘LINK USB’ port.

12. Download the application to your LCP55S36.

13. Select the J-Link debug probe.

14. Run the application.

1. Build an Example Application

The following steps will guide you through opening the hello_world application. The instructions for compiling and debugging the Cortex M33 core are covered in the instructions below.

Please use IAR Embedded Workbench for Arm version 8.50.9 or above.

1. First, unzip the previously downloaded LPC55S36 SDK package.
2. Open the desired example application workspace. Most example application workspace files can be located using the following path:

<install_dir>/boards/<sdk_board_name>/<example_type>/<application_name>/iar

3. Select the desired build target from the drop-down. For this example, select the “hello_world – Debug” target.

4. Open the project properties by doing a right-click on the project and selecting Options.

5. Now go to the Debugger section and change the debugger driver to Jlink. Press the OK button.

6. To build the application, click the “Make” button, highlighted in red below.

7. The build will complete without errors.


Note:In case of building errors, make sure that the correct Board is selected, right click in the project >> Options >> General Options >> Target >> Device, Select the NXP LPC55S36, this board is supported in IAR Embedded Workbench for Arm version 8.50.9 or Higher.


2. Run an Example Application

The MCU-LINK circuit on the board should have been updated to use the J-Link interface during Step 1.2 “Install Drivers” of the Getting Started website. See that section of the Getting Started website for more details on using LPCScrypt to update the debug firmware on the board to use the J-Link interface if this has not already been done

1. Connect the development platform to your PC via USB cable to J1 “Link USB”.
   
2. Click the "Download and Debug" button to download the application to the target.

3. The application is then downloaded to the target and automatically runs to the main() function.
4. Run the code by clicking the "Go" button to start the application.

5. The hello_world application is now running on the Cortex-M33.

1. Install CMSIS device pack

After the MDK tools are installed, Cortex^® Microcontroller Software Interface Standard (CMSIS) device packs must be installed to fully support the device from a debug perspective. These packs include things such as memory map information, register definitions and flash programming algorithms. Follow these steps to install the appropriate CMSIS pack.

Please use MDK-Arm Microcontroller Development Kit (Keil)^® version 5.33 or above.

1. Open the MDK IDE, which is called µVision. Inside the IDE, select the "Pack Installer" icon.

2. In the Pack Installer window, search for ““LPC55S36” to bring up the LPC55xx family. Click on the LPC55S36 name, and then in the right-hand side you’ll see the NXP:LPC55S36_DFP pack. Click on the “Install” button next to the pack. This process requires an internet connection to successfully complete.
3. After the installation finishes, close the Pack Installer window and return to the µVision IDE.
2. Build the Example Application

The following steps will guide you through opening the hello_world application. These steps may change slightly for other example applications as some of these applications may have additional layers of folders in their path.

1. If not already done, open the desired demo application workspace in:

<install_dir>/boards/<sdk_board_name>/<example_type>/<application_name>/mdk

The workspace file is named <application_name>.uvmpw, so for this specific example, the actual path is:

<SDK_2_10_1_LPCXpresso55S36.zip/boards/lpcxpresso55s36/demo_app/cm33/mdk /hello_word.uvmpw

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2. Select debug configuration.

3. Do right click on the project and select the project options:

4. Now, go to the Debug option and select J-LINK. Click on Ok button.

5. To build the demo project, select the "Rebuild" button, highlighted in red.

6. The build will complete without errors.
3. Run an Example Application

The LPC55S36 board comes loaded with the CMSIS-DAP debug interface from the factory. If you have changed the debug LPC-LINK2 application on your board, check the LPCScrypt tutorial described in the past section.

1. Connect the development platform to your PC via USB cable to J1 “Debug Link”. Ensure the DFULink jumper (JP6) is removed when powering the board to boot the debug probe from internal flash.
   
2. Open the terminal application on the PC (such as PuTTY or Tera Term) and connect to the debug COM port you determined earlier. Configure the terminal with these settings:
• 115200 baud rate
• No parity
• 8 data bits
• 1 stop bit
3. After the application is properly built, click the "Download" button to download the application to the target.

4. Click on “Start/Stop Debug Session” to open the debug view.

5. Run the code by clicking the "Run" button to start the application.

6. hello_world application is now running!.

1. Build an Example Application

The following steps will guide you through the manipulation of the general-purpose outputs. The example sets up a led_blinky, which blinks the RED LED periodically.

1. Find the Quickstart Panel in the lower left-hand corner

2. Then click on Import SDK examples(s)…

3. Click on the LPCXpresso55s36 board to select that you want to import an example that can run on that board, and then click on Next.

4. Use the arrow button to expand the driver_examples category, then expand the sctimer examples, click on the checkbox next to sctimer_pwm_with_dutycycle_change to select it. To use the UART for printing (instead of the default semihosting), Select UART as the SDK Debug Console checkbox under the project options. Then, click on Finish.

5. Click on the “lpcxpresso55s36_led_blinky” project in the Project Explorer View and build, compile, and run the demo as described previously.

6. You should see the RED LED blinking.

   Note: On “Use Pin Tool” tutorial you will learn how to change the LED output pin of the board.

7. Terminate the debug session.

The following steps will guide you through the manipulation of the general-purpose outputs. The example sets up a led_blinky.

1. Open the MCUXpresso Config Tool.
2. In the wizard that comes up, select the “Create a new configuration based on an SDK example or hello word project” radio button and click on Next.

3. On the next screen, select the location of the MCUXpresso SDK that you had unzipped earlier. Then select the IDE that is being used. Note that only IDEs that were selected in the online SDK builder when the SDK was built will be available and click on clone select example

Then select the project to clone. For this example, we want to use the gpio led output project. You can filter for this by typing “led_blinky” in the filter box and then selecting the “led_blinky” example project. You can then also specify where to clone the project and the name. Then click on Finish.


4. After cloning go to the directory you selected and open the project for your IDE. Import, compile and run the project as done in previous sections.
5. You should see the RED LED blinking.

   Note: On “Use Pin Tool” tutorial you will learn how to change the LED output pin of the board.

6. Terminate the debug session.

1. To open pin tools in MCUXpresso IDE:
1. Open the pins tool by right clicking on the “Led_Blinky” project, and selecting “ConfigTools” and then “Pins”

2. The pins tool should now display the pin configuration for the led_blinky project.

2. Use the pins tools to modify the LED routed pin:
1. We’ll use MCUXpresso IDE for the rest of the instructions, but the same steps can be done in MCUXpresso Config tools for third party IDEs. In the Pins view deselect “Show dedicated pins” and “Show no routed pins” checkboxes to see only the routed pins. Routed pins have a check in a green box next to the pin name. The functions selected for each routed pin are highlighted in green.

2. In the current configuration, PIO1_28 is routed as a RED_LED. Let’s disable, PIO1_28 and change the mux setting of PIO0_22 to use its GPIO functionality.
3. Disable PIO1_28 by clicking the “GPIO” field under the GPIO column. A new window will appear. The pin will then be disabled (pin will no longer have check in box) and thus disappear from the list.

4. Now, route PIO0_22 as a GPIO. First, select the “Show not routed pins” so that all the pins are displayed again. Then, search PIO0_22 in the pins view. Finally, click the box under the GPIO column. The box will highlight in green, and a check will appear next to the pin.

5. Now it’s time to implement these changes into the project by exporting the new updated pin_mux.c and pin_mux.h files that are generated by the Pins tool. Click on Update Project in the menu bar.

6. The screen that pops up will show the files that are changing and you can click on “diff” to see the difference between the current file and the new file generated by the Pins tool. Click on “OK” to overwrite the new files into your project. Note: The clocks and other files may also be tagged as being updated since the header has been changed.

7. Open led_blinky.c file and change macro BOARD_LED_RED_GPIO_PORT to BOARD_LED_GREEN_GPIO_PORT and BOARD_LED_RED_GPIO_PIN to BOARD_LED_GREEN_GPIO_PIN.

8. Build and download the project as done in the previous section.
9. Run the application. You should now see the GREEN LED blinking.
10. Terminate the debug session.