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標(biāo)題: C語言如何把函數(shù)指針參數(shù)傳到宏定義開辟的空間呢？ [打印本頁]
作者: hei51com    時間: 2020-11-6 10:46
標(biāo)題: C語言如何把函數(shù)指針參數(shù)傳到宏定義開辟的空間呢？
如下,想用#else 替換，但這樣編譯不通過，請教怎么修改才能編譯通過。
  1. typedef struct{
  2. uint8 Address;
  3. uint8 Top_data;
  4. uint8 Middle_data;
  5. uint8 Botton_data;
  6. }RAM_TAB;

  8. RAM_TAB *ram_ptr;

  10. #define RESEVE_ADDR (0x8fb2600)//使用RESEVE保留的內(nèi)存

  12. typedef struct{
  13. uint8 Address;
  14. uint8 Top_data;
  15. uint8 Middle_data;
  16. uint8 Botton_data;
  17. }ram_tab_t;

  19. #define g_ram_tab_info ((ram_tab_t *)(RESEVE_ADDR))

  21. int WriteRam(uint8 data_length, RAM_TAB *ram_address)
  22. {
  23. uint8 i,

  25. #if 0
  26. ram_ptr = ram_address;
  27. #else
  28. g_ram_tab_info = ram_address;
  29. #endif

  31. for(i = 0; i < data_length; i++)
  32. {
  33. #if 0
  34. if(WriteReg(0x1d,&ram_ptr->Address,ADDR,2) != FALSE)
  35. return -1;
  36. if(WriteReg(0x10,&ram_ptr->Top_data,ADDR,2) != FALSE)
  37. return -1;
  38. if(WriteReg(0x11,&ram_ptr->Middle_data,ADDR,2) != FALSE)
  39. return -1;
  40. if(WriteReg(0x22,&ram_ptr->Botton_data,ADDR,2) != FALSE)
  41. return -1;
  42. ram_ptr++;
  43. #else
  44. if(WriteReg(0x1d,&g_ram_tab_info->Address,ADDR,2) != FALSE)
  45. return -1;
  46. if(WriteReg(0x10,&g_ram_tab_info->Top_data,ADDR,2) != FALSE)
  47. return -1;
  48. if(WriteReg(0x11,&g_ram_tab_info->Middle_data,ADDR,2) != FALSE)
  49. return -1;
  50. if(WriteReg(0x22,&g_ram_tab_info->Botton_data,ADDR,2) != FALSE)
  51. return -1;
  52. g_ram_tab_info++;
  53. #endif
  54. }

  56. return 0;
  57. }
復(fù)制代碼



作者: B001    時間: 2020-11-6 15:41
對于像STM32這種程序，你所定義的RESERVE_ADDR屬于FLASH的地址范圍，g_ram_tab_info代表的是一個FLASH地址，第28行g(shù)_ram_tab_info=ram_address是試圖將FLASH的指改變，這是不允許的。






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