The command SYStem.Attach can be used to attch to the CPU without affecting the user program while it is running (no reset). Please refer to "https://repo.lauterbach.com/pdf/debugger_tricore.pdf" (page=97) for more details

Thanks for your reply. There was one problem: First we attach MCU while it is running, then we disconnect the debugger from MCU. After that, we triggered one soft reset of MCU through UART. Then we found MCU didn't start up after reset. At that time, we attached MCU again and found it's status is "stopped" (shown at bottom right of T32 GUI). Here is my question: Is it normal? Why MCU didn't start up after reset, was it caused by T32 software's first attach?