spi.lst

用NXP公司P89LPC9401单片机开发液晶显示,包括开发资料,各功能驱动程序.

C51 COMPILER V7.06   SPI                                                                   11/09/2004 16:39:45 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE SPI
OBJECT MODULE PLACED IN SPI.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE SPI.C BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          //***********************************************************************
   2          //FILE: SPI.c
   3          //功能: 向74HC595发送数据
   4          //***********************************************************************
   5          #include"main.h"
   6          //***********************************************************************
   7          void SendDatTo595(uchar dat)                            //SPI发送数据函数
   8          {
   9   1              HC595_CS=0;                                                             //选中74HC595
  10   1              SPSTAT=0xc0;                                                    //清除状态标志
  11   1              SPDAT=dat;                                                              //将数据写入发送寄存器
  12   1              while(!(SPSTAT&0x80));                                  //等待发送完成
  13   1              HC595_CS=1;                                                             //发送结束
  14   1      }
  15          //**********************************END**********************************


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     15    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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