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標題: 為什么單片機+LCD1602無法顯示?并且P0.5端口有問題，怎么解決？ [打印本頁]
作者: IJLG    時間: 2020-3-24 13:25
標題: 為什么單片機+LCD1602無法顯示?并且P0.5端口有問題，怎么解決？
  1. #define LCD_DB P0
  2. sbit LCD_E=P2^0;
  3. sbit LCD_RW=P2^1;
  4. sbit LCD_RS=P2^2;
  5. u8 disp[]=" dripping speed ";

  7. void LCD_init()
  8. {
  9. LCD_write_command(0x38);  
  10. LCD_write_command(0x0c);  
  11. LCD_write_command(0x06);  
  12. LCD_write_command(0x01);
  13. LCD_write_command(0x80);
  14. }

  16. void LCD_write_command(unsigned char com)
  17. {
  18. LCD_E=0;   
  19. LCD_RS=0;
  20. [color=#007000][backcolor=rgb(255, 255, 255)][font=Tahoma,] LCD[/font][/backcolor][/color]_RW=0;
  21. LCD_DB=com;
  22. delay(1000);
  23. LCD_E=1;
  24. delay(5000)
  25. LCD_E=0;
  26. }

  28. void LCD_write_data(unsigned char dat)
  29. {
  30. LCD_E=0;
  31. LCD_RS=1;
  32. LCD_RW=0;
  33. LCD_DB=dat
  34. delay(1000);
  35. LCD_E=1
  36. delay(5000)
  37. LCD_E=0;
  38. }
  39.          
  40. void main()
  41. {
  42. u8 i;
  43. LCD_init();
  44. for(i=0;i<16;i++)
  45. {
  46.   LCD_write_data(disp[i]);
  47. }
  48. while(1);
  49. }
復制代碼






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