uart_query_putchar.lst

EasyStudy51-II单片机开发系统的库函数源代码.包含了EasyStudy51-II硬件的全部驱动.

C51 COMPILER V7.06   UART_QUERY_PUTCHAR                                                    11/06/2008 01:10:31 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE UART_QUERY_PUTCHAR
OBJECT MODULE PLACED IN UART_query_PutChar.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE c51\UART_query_PutChar.c INCDIR(.\Target\INC\) DEBUG OBJECTEXTEND PRINT(.\U
                    -ART_query_PutChar.lst) OBJECT(UART_query_PutChar.obj)

stmt level    source

   1          
   2          
   3          #include "AT89X52.h"
   4          #include "ES51_II.h"
   5          #include "ES51_II_LIB.h"
   6          
   7          
   8          //      查询方式发送一字节数据
   9          void PutChar( char txd )
  10          {
  11   1              bit     btmp;
  12   1              btmp = ES;                      //      保存ES
  13   1              ES = 0;                         //      禁止串行中断,查询方式发送
  14   1      
  15   1              SBUF = txd;                     //      发送数据
  16   1              while(!TI);                     //      等待数据发送完毕
  17   1              TI = 0;                         //      清发送标志位
  18   1      
  19   1              ES = btmp;                      //      还原ES状态
  20   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     18    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.


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