J-Link found 2 JTAG devices, Total IRLen = 9 JTAG ID: 0x4BA00477 (Cortex-M4) Connected to target Waiting for GDB connection...Connected to 127.0.0.1 Reading all registers Read 4 bytes @ address 0x08000878 (Data = 0x0201F000) Read 2 bytes @ address 0x08000878 (Data = 0xF000) Connected to 127.0.0.1 Reading all registers Read 4 bytes @ address 0x08000878 (Data = 0x0201F000) Read 4 bytes @ address 0x080008D2 (Data = 0x0016BD70) Reading 64 bytes @ address 0x00000000 GDB closed TCP/IP connection 从这里看出，你的j_link找到两个设备，一个是通过TCP/IP连接的，一个是硬件连接，127.0.0.1看看这个IP是什么，连接了什么东西
