使用stm32cubeide 编写一个简单的跑马灯程序，直接卡在了本地gdb调试那里

1. SEGGER J-Link GDB Server V6.44c Command Line Version
   
2. 
   
3. JLinkARM.dll V6.44c (DLL compiled Mar 22 2019 17:26:40)
   
4. 
   
5. Command line: -port 2331 -s -device STM32F407ZG -endian little -speed 500 -vd
   
6. -----GDB Server start settings-----
   
7. GDBInit file:                  none
   
8. GDB Server Listening port:     2331
   
9. SWO raw output listening port: 2332
   
10. Terminal I/O port:             2333
    
11. Accept remote connection:      localhost only
    
12. Generate logfile:              off
    
13. Verify download:               on
    
14. Init regs on start:            off
    
15. Silent mode:                   off
    
16. Single run mode:               on
    
17. Target connection timeout:     0 ms
    
18. ------J-Link related settings------
    
19. J-Link Host interface:         USB
    
20. J-Link script:                 none
    
21. J-Link settings file:          none
    
22. ------Target related settings------
    
23. Target device:                 STM32F407ZG
    
24. Target interface:              JTAG
    
25. Target interface speed:        500kHz
    
26. Target endian:                 little
    
27. 
    
28. Connecting to J-Link...
    
29. J-Link is connected.
    
30. Firmware: J-Link ARM V8 compiled Nov 28 2014 13:44:46
    
31. Hardware: V8.00
    
32. S/N: 17935099
    
33. Feature(s): RDI,FlashDL,FlashBP,JFlash
    
34. Checking target voltage...
    
35. Target voltage: 3.31 V
    
36. Listening on TCP/IP port 2331
    
37. Connecting to target...
    
38. J-Link found 2 JTAG devices, Total IRLen = 9
    
39. JTAG ID: 0x4BA00477 (Cortex-M4)
    
40. Connected to target
    
41. Waiting for GDB connection...Connected to 127.0.0.1
    
42. Reading all registers
    
43. Read 4 bytes @ address 0x08000878 (Data = 0x0201F000)
    
44. Read 2 bytes @ address 0x08000878 (Data = 0xF000)
    
45. Connected to 127.0.0.1
    
46. Reading all registers
    
47. Read 4 bytes @ address 0x08000878 (Data = 0x0201F000)
    
48. Read 4 bytes @ address 0x080008D2 (Data = 0x0016BD70)
    
49. Reading 64 bytes @ address 0x00000000
    
50. GDB closed TCP/IP connection
    

复制代码

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