> For the complete documentation index, see [llms.txt](https://bananapi.gitbook.io/bpi-open-debugger-burn-board/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bananapi.gitbook.io/bpi-open-debugger-burn-board/zh/swdinterfaceiarewarmsinglestepdebugging.md).

# SWD interface IAR EWARM single-step debugging

1.If you add a breakpoint in the code.

![](/files/-M2HX5pjRk9YCqsOFLc7)

2.Then, after the above download will automatically enter debug mode.

![](/files/-M2HX5pl1A4YnaF7cKeq)

3.According to their own needs to control the program single-step operation into a function out of a function, and other operations running at full speed

![](/files/-M2HX5pnrX1XG52tS8bj)