During the software testing process, our device is connected to the rtt viewer for testing. At present, a problem is found during the test: sometimes the test engineer suddenly finds that the rtt viewer has no log printed. At this time, other functions of the device are running normally, and then test The engineer clicks the connect option on the RTT Viewer again. After the RTT Viewer is connected, the device hangs up, no longer runs, and will not resume (the door dog is open). The device does not resume operation until the disconnect RTT Viewer is clicked. So far this phenomenon has appeared three or four times, please analyze it, thank you!
The following log is the connection log of RTT Viewer
LOG: Connecting to J-Link via USB... LOG: Device "NRF52832_XXAA" selected. LOG: InitTarget() start LOG: InitTarget() end LOG: Found SW-DP with ID 0x2BA01477 LOG: DPIDR: 0x2BA01477 LOG: Scanning AP map to find all available APs LOG: AP[2]: Stopped AP scan as end of AP map has been reached LOG: AP[0]: AHB-AP (IDR: 0x24770011) LOG: AP[1]: JTAG-AP (IDR: 0x02880000) LOG: Iterating through AP map to find AHB-AP to use LOG: AP[0]: Core found LOG: AP[0]: AHB-AP ROM base: 0xE00FF000 LOG: CPUID register: 0x410FC241. Implementer code: 0x41 (ARM) LOG: Found Cortex-M4 r0p1, Little endian. LOG: FPUnit: 6 code (BP) slots and 2 literal slots LOG: CoreSight components: LOG: ROMTbl[0] @ E00FF000 LOG: ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7 LOG: ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT LOG: ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB LOG: ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM LOG: ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU LOG: ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM LOG: RTT Viewer connected. LOG: All Terminals tab cleared. LOG: Connecting to J-Link via USB... LOG: Device "NRF52832_XXAA" selected. LOG: InitTarget() start LOG: InitTarget() end LOG: Found SW-DP with ID 0x2BA01477 LOG: Failed to power up DAP LOG: InitTarget() start LOG: InitTarget() end LOG: Found SW-DP with ID 0x2BA01477 LOG: DPIDR: 0x2BA01477 LOG: Scanning AP map to find all available APs LOG: AP[2]: Stopped AP scan as end of AP map has been reached LOG: AP[0]: AHB-AP (IDR: 0x24770011) LOG: AP[1]: JTAG-AP (IDR: 0x02880000) LOG: Iterating through AP map to find AHB-AP to use LOG: AP[0]: Core found LOG: AP[0]: AHB-AP ROM base: 0xE00FF000 LOG: CPUID register: 0x410FC241. Implementer code: 0x41 (ARM) LOG: Found Cortex-M4 r0p1, Little endian. LOG: FPUnit: 6 code (BP) slots and 2 literal slots LOG: CoreSight components: LOG: ROMTbl[0] @ E00FF000 LOG: ROMTbl[0][2]: 3A1AF000, CID: 01000000, PID: EFCAF588 ??? LOG: RTT Viewer connected.
