SEGGER RTT的通道0默认已经开启，无需用户再单独开启

eric2013

1. /*********************************************************************
   
2. *
   
3. *       Static data
   
4. *
   
5. **********************************************************************
   
6. */
   
7. //
   
8. // RTT Control Block and allocate buffers for channel 0
   
9. //
   
10. SEGGER_RTT_PUT_CB_SECTION(SEGGER_RTT_CB_ALIGN(SEGGER_RTT_CB _SEGGER_RTT));
    
11. 
    
12. SEGGER_RTT_PUT_BUFFER_SECTION(SEGGER_RTT_BUFFER_ALIGN(static char _acUpBuffer  [BUFFER_SIZE_UP]));
    
13. SEGGER_RTT_PUT_BUFFER_SECTION(SEGGER_RTT_BUFFER_ALIGN(static char _acDownBuffer[BUFFER_SIZE_DOWN]));
    
14. 
    
15. static char _ActiveTerminal;
    
16. 
    
17. /*********************************************************************
    
18. *
    
19. *       Static functions
    
20. *
    
21. **********************************************************************
    
22. */
    
23. 
    
24. /*********************************************************************
    
25. *
    
26. *       _DoInit()
    
27. *
    
28. *  Function description
    
29. *    Initializes the control block an buffers.
    
30. *    May only be called via INIT() to avoid overriding settings.
    
31. *
    
32. */
    
33. #define INIT()  do {                                            \
    
34.                   if (_SEGGER_RTT.acID[0] == '\0') { _DoInit(); }  \
    
35.                 } while (0)
    
36. static void _DoInit(void) {
    
37.   SEGGER_RTT_CB* p;
    
38.   //
    
39.   // Initialize control block
    
40.   //
    
41.   p = &_SEGGER_RTT;
    
42.   p->MaxNumUpBuffers    = SEGGER_RTT_MAX_NUM_UP_BUFFERS;
    
43.   p->MaxNumDownBuffers  = SEGGER_RTT_MAX_NUM_DOWN_BUFFERS;
    
44.   //
    
45.   // Initialize up buffer 0
    
46.   //
    
47.   p->aUp[0].sName         = "Terminal";
    
48.   p->aUp[0].pBuffer       = _acUpBuffer;
    
49.   p->aUp[0].SizeOfBuffer  = sizeof(_acUpBuffer);
    
50.   p->aUp[0].RdOff         = 0u;
    
51.   p->aUp[0].WrOff         = 0u;
    
52.   p->aUp[0].Flags         = SEGGER_RTT_MODE_DEFAULT;
    
53.   //
    
54.   // Initialize down buffer 0
    
55.   //
    
56.   p->aDown[0].sName         = "Terminal";
    
57.   p->aDown[0].pBuffer       = _acDownBuffer;
    
58.   p->aDown[0].SizeOfBuffer  = sizeof(_acDownBuffer);
    
59.   p->aDown[0].RdOff         = 0u;
    
60.   p->aDown[0].WrOff         = 0u;
    
61.   p->aDown[0].Flags         = SEGGER_RTT_MODE_DEFAULT;
    
62.   //
    
63.   // Finish initialization of the control block.
    
64.   // Copy Id string in three steps to make sure "SEGGER RTT" is not found
    
65.   // in initializer memory (usually flash) by J-Link
    
66.   //
    
67.   strcpy(&p->acID[7], "RTT");
    
68.   strcpy(&p->acID[0], "SEGGER");
    
69.   p->acID[6] = ' ';
    
70. }

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