dev_io.lst

CY7C68013A系列USB芯片的GPIO功能实例程序

C51 COMPILER V8.02   DEV_IO                                                                03/16/2009 21:53:57 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE DEV_IO
OBJECT MODULE PLACED IN DEV_IO.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE DEV_IO.C OPTIMIZE(6,SPEED) BROWSE DEBUG OBJECTEXTEND

line level    source

   1          //-----------------------------------------------------------------------------
   2          //   File:      gpio.c
   3          //   Contents:  main module of a simple non-renumerating firmware example
   4          //       本程序的目的是演示如何使用端口的GPIO方式。
   5          //       稍加修改即可实现跑马灯
   6          //-----------------------------------------------------------------------------
   7          // Copyright 2003, Cypress Semiconductor Corporation
   8          //-----------------------------------------------------------------------------
   9          #include "fx2.h"
  10          #include "fx2regs.h"
  11          
  12          void gpio_Init();
  13          main()
  14          {
  15   1              int             i;
  16   1              gpio_Init();                    // Initialize GPIO
  17   1      
  18   1              while(TRUE)
  19   1              {
  20   2                      if(i++ >1000)
  21   2                      i= 0;
  22   2              }
  23   1      }
  24          
  25          void gpio_Init()
  26          {
  27   1              //配置ABD端口为输出模式，若为输入模式，则置为0
  28   1              OEA = 0xFF;
  29   1              OEB = 0xFF;
  30   1              OED = 0xFF;
  31   1              //输出值为全高电平
  32   1              IOA = 0xFF;
  33   1              IOB = 0xff;
  34   1              IOD = 0xff;
  35   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     51    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)