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Eint.c
Package: uCOS-II.rar　[view]
Upload User: jinguanrq
Upload Date: 2022-06-04
Package Size: 724k
Code Size: 2k
Category:

uCOS

Development Platform:

C/C++

Eint.c：Code Content
  1. /*--- include files ---*/
  2. #include "44blib.h"
  3. #include "44b.h"
  4. #include "def.h"
  5. #ifdef __cplusplus
  6. extern "C" {
  7. #endif
  8. void Eint4567Isr(void);
  10. /*********************************************************************************************
  11. * name: init_Eint
  12. * func:
  13. * para: none
  14. * ret: none
  15. * modify:
  16. * comment:
  17. *********************************************************************************************/
  18. void init_Eint(void)
  19. {
  20. /* enable interrupt */
  21.     rI_ISPC    = 0x3ffffff;
  22. rEXTINTPND = 0xf;                          // clear EXTINTPND reg
  23. rINTMOD    = 0x0;
  24. rINTCON    = 0x1;
  25. rINTMSK    = ~(BIT_GLOBAL|BIT_EINT4567);
  27. /* set EINT interrupt handler */
  28.     pISR_EINT4567 = (int)Eint4567Isr;
  29.     
  30.    /* PORT G */
  31.     rPCONG  = 0xffff;                          // EINT7~0
  32. rPUPG   = 0x0;                             // pull up enable     
  33. rEXTINT = rEXTINT|0x22220020;              // EINT1、EINT4567 falling edge mode
  34.     rI_ISPC    |= BIT_EINT4567;
  35. rEXTINTPND = 0xf;                          // clear EXTINTPND reg
  36. }
  37. #if 0
  38. /*********************************************************************************************
  39. * name: Eint4567Isr
  40. * func:
  41. * para: none
  42. * ret: none
  43. * modify:
  44. * comment:
  45. *********************************************************************************************/
  46. void Eint4567Isr(void)
  47. {
  48.     
  49.     Uart_Printf("Key pressed...n");
  50.     //which_int  = rEXTINTPND;
  51.     rEXTINTPND = 0xf; //clear EXTINTPND reg.
  52.     rI_ISPC   |= BIT_EINT4567; //clear pending_bit
  53. }
  54. #endif
  56. #ifdef __cplusplus
  57.  }
  58. #endif