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3375316251RS232.rar

 

51单片机串口通讯proteus 仿真，适合proteus+51初学者:
proteus 仿真51单片机串口通讯，适合proteus+51初学者，也适合工程设计中调试串口通讯用
  1. #include <reg8253.h>

  3. #define uint unsigned int
  4. #define uchar unsigned char

  6. uchar table[14]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10,
  7. 0x20,0x63,0x07,0x23}; //阴极7SEG

  9. uchar send=0x00;

  11. void rs232Ini(void)
  12. {
  13. TMOD=0x20;
  14. TH1=0xfd; //9600
  15. TL1=0xfd;
  16. PCON=0x00;
  17. SCON=0x50;//方式1
  18. EA=1;
  19. ES=1;
  20. TR1=1;
  21. }

  23. void ex_int(void)
  24. {
  25. EA=1;
  26. IE0=0;
  27. EX0=1;
  28. }

  30. void delay(unsigned char n)
  31. {
  32. uchar i,j,k;
  33. for(i=0;i<=n;i++)
  34. {
  35. for(j=0;j<100;j++)
  36. for(k=0;k<=250;k++);
  37. }
  38. }

  40. void main(void)
  41. {
  42. delay(1);
  43. rs232Ini();
  44. ex_int();
  45. P3_3=0;//led
  46. while(1)
  47. {
  48. }
  49. }

  51. void ex_button() interrupt 0 using 2
  52. {// send=5;
  53. SBUF=send;
  54. while(!TI);
  55. TI=0;
  56. P1_0=!P1_0;
  57. send++;
  58. IE0=0;
  59. if(send>10) send=0;
  60. delay(1);
  61. P3_7=!P3_7;//Led
  62. }

  64. void serial_Read(void) interrupt 4 using 3
  65. {
  66. uint iBuf;
  67. uchar cBuf;
  68. if(RI==1)
  69. {
  70. P2=1;
  71. iBuf=SBUF;
  72. cBuf=iBuf;
  73. P0=table[cBuf];
  74. RI=0;
  75. }
  76. }
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