No Cortex-M SW Device Found

我试图运行作品的例子所示the 'Getting started with the DA1458x Development Kit – Pro' guide. I get to step seven, the step where you check that the SW device has been detected correctly. However when I try to do this, no device is recognized. When I try to run the debugger after this it leads to the error: "No Cortex-M SW Device Found".
How can I make the debugger recognize my board? What could I have done improperly along the way that would lead to this problem?

Thanks