 Now it is time to configure and debug sessions for both cores. So important point it is coming from reference manual RM0453 for STM43WL55 devices. The important point is that this microcontroller have two debug ports. Port 0 is dedicated for Cortex-M4 core and port 1 is dedicated to Cortex-M0 plus core. This you can see within this picture which is coming from mentioned reference manual. Having this knowledge we can open the debug configurations by pressing this down arrow next to the back icon. Before this I would highlight first Cortex-M4, we will start from this one. I would go to this back icon, down arrow, debug configurations. I would double click on this. I can see that the proper ELFI is selected. Within the debugger I would keep the default GDB settings, connect under reset, halt all cores just to stop all of them at the same time. I would enable both options within cross-trigger interface to be sure that once I stop one core the second one would be stopped automatically. I need to check whether the chart as the link is selected. All is configured properly. Then within startup I have got the default load image and symbols only for Cortex-M4. I would extend it to load both binaries for Cortex-M0 plus and Cortex-M4 in the same time. I go to add, select Cortex-M0 plus, build configuration debug and I would disable load symbols. This we will do within the debug session for Cortex-M0 plus. I press OK. We can see that we will build and download both binaries, both projects at the same time. The first one which would be run would be Cortex-M4, which is really, it should be like this. If you will have a different order you can move it up and down using those two buttons. Now I can press apply, but now debug and close. And now I click on left button on mouse on this Cortex-M0 plus project to configure the debug session for this core. Go to back icon, down arrow, debug configurations, double click on this Cortex-MCC++ application. I can see that now Cortex-M0 plus ELF file has been selected. Go to debugger, I need to increase this port number because the first port has been selected for Cortex-M4 and we are now using the next one from the GDB server. So access port is correctly selected. We will disable reset because we don't want to reset the micro ones. Once we will load the symbols for Cortex-M0 plus, we will allow, let's say, enable the CTI, so cross trigger interface, to have synchronous start and resume with Cortex-M4. And shared estering is already selected. I click apply and go to start up. Within start up, I will not add anything more, but I will just modify this by highlighting and clicking edit. And I will disable download. Download will be done already within Cortex-M4 debug configuration. The only thing we would like to trigger within this debug procedure for Cortex-M0 plus would be loading the symbols. Click OK, apply and close. Now we are ready to start a debug session. Let's do a short summary of this part activities. Thank you for your attention.