PSOC™ 6 and XMC7xxx multi-core application

Follow instructions in Create/export application for Keil µVision. After creating all the projects in separate instances, your application should look like this:

Then, use the instructions in this section to configure, build, and debug your application.

Configure CM0+ project

Go to Project > Options for Target <target_name>, switch to the Debug tab, select the applicable debug probe (CMSIS-DAP or J-Link) as shown:
- If using ULINK2, select the CMSIS-DAP Debugger option as the debug probe, because the ULINK2 driver does not support multi-core debugging
Click the Settings button to configure the target driver.
- If you select the J-Link probe, a pop-up window might display reporting that the device is unknown to J-Link software.
- If so, click OK and select the device manually in the opened Target device settings dialog. For XMC7200 devices, there will be three aliases, each dedicated to a separate core.
Switch to the Flash Download tab, select the Erase Sectors radio button, and select the Program, Verify, and Reset and Run check boxes.
Click OK to close the Target Driver Setup dialog.
Next, configure the project so that it also programs other image(s) from the CM4/CM7 project(s). Do this using the *.ini file.
- Create a new empty file named load_cmx.ini and save it inside the CM0+ project directory.
- Add a LOAD command with a path to the CM4/CM7 images. For example:
```
LOAD "..\\proj_cm4\\proj_cm4_Objects\\proj_cm4.axf"
```
- Add as many LOAD commands for all the CM4/CM7 projects as you have.
Go to Project > Options for Target <target_name>, select the Utilities tab, and specify the created load_cmx.ini file in the Init File edit field.
Switch to the Debug tab, and click the Settings button.

The configuration settings are different for CMSIS-DAP/ULINK2 and J-Link. Refer to the following sections for the applicable options:

CMSIS-DAP/ULINK2 Target Driver Setup

Use the following options:

Port: SW
Max Clock: 1 MHz
Connect: Normal
Reset: SYSRESETREQ

J-Link Target Driver Setup

Use the following options:

Port: SW
Max clock: 1 MHz
Connect: Normal
Reset: Normal

That completes configuring the CM0+ project. The next step is to configure CM4/CM7 project(s).

Configure CM4/CM7 project

Open the Options dialog to the Utilities tab, and deselect the Update Target before the Debugging check box.
Switch to the Debug tab, select the applicable debug probe (CMSIS-DAP or J-Link).
- If using ULINK2, select the CMSIS-DAP Debugger option as the debug probe, the ULINK2 driver does not support multi-core debugging.
Click the Settings button to configure the target driver.
On the Target Driver Setup dialog, switch to the Flash Download tab, select the Do not Erase radio button, and deselect the Program, Verify, and Reset and Run check boxes.
Switch to the Debug tab.
The configuration settings are different for CMSIS-DAP/ULINK2 and J-Link. Refer to the following for the appropriate options:
- CMSIS-DAP/ULINK2 Target Driver Setup – Use the following options:
  - Port: SW
  - Max Clock: 1 MHz
  - Connect: Normal
  - Reset: VECTRESET
  - Reset after Connect check box: deselected
- J-Link Target Driver Setup – Use the following options:
  - Port: SW
  - Max Clock: 1 MHz
  - Connect: Normal
  - Reset: Core
  - Reset after Connect check box: deselected
Click OK to close the Target Driver Setup dialog.
Save the project(s).

Building µVision multi-core projects

Once all projects are open, go ahead and build each one using Project > Build target.

To use J-Link debugger with XMC7000 devices

Program set-up instructions

Select the Debug tab in the Options for Target dialog, select "J-LINK / J-TRACE Cortex" as the debug adapter, and click Settings.
On the Debug tab in the Cortex J-Link/JTrace Target Driver Setup dialog, select "SW" for Port, 2 MHz for Max Clock, and "Connect under Reset" on the Reset pull-down menu, and then click OK.
Select the Utilities tab in the Options for Target dialog and deselect the Update target before Debugging check box.

Debug set-up instructions

Select the Debug tab in the Options for Target dialog, select "J-LINK / J-TRACE Cortex" as the debug adapter, and click Settings.
On the Debug tab in the Target Driver Setup dialog:
- Port: select "SW"
- Max Clock: select 2 MHz
- Reset pull-down: select "Normal," "Core" or "Reset Pin"
- Download Options: enable "Verify Code Download" and "Download to Flash"

Launch multi-core debug session

To launch a multi-core debug session, all your µVision projects must be opened in separate IDE instances.

Open a µVision IDE session with the project for the CM0+ core and start debugging by pressing Debug > Start/Stop Debug Session. This will program all images, reset the target, and halt at the beginning of the CM0+ project main().
Repeat the same process for the CM4/CM7 core(s). This will attach the running CM4/CM7 core that will be spinning in the boot code until the CM0+ project starts it.

Note:

Ensure both projects are built before launching a debug session.

For dual-core MCUs, the projects will be similar to these images:

The left side of the screen shows a µVision IDE instance attached to the CM0+ core. The right side shows the CM4 core has not started yet. Once the Cy_SysEnableCM4() function on the CM0+ core has been executed, the CM4 will start executing its application. You can step through the code by switching back and forth between the two µVision IDE instances.

Last updated on Aug 17, 2026