stc_spi.lst

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C51 COMPILER V8.05a   STC_SPI                                                              03/14/2009 18:41:31 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE STC_SPI
OBJECT MODULE PLACED IN stc_spi.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE stc_spi.c LARGE BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "stc_new_8051.h"
   2          #include "stc_spi.h"
   3          
   4          void spi_init(unsigned char n) //STC 硬件SPI初始化，n为分频数，影响SPI的通信速度
   5          {
   6   1       switch(n)
   7   1       {
   8   2        case 4:
   9   2               SPCTL=0xdc;
  10   2                       break;
  11   2        case 16:
  12   2               SPCTL=0xdd;
  13   2                       break;
  14   2        case 64:
  15   2               SPCTL=0xde;
  16   2                       break;
  17   2        case 128:
  18   2               SPCTL=0xdf;
  19   2                       break;
  20   2       }
  21   1       SPSTAT=0xc0;
  22   1      }
  23          
  24          void spi_write(unsigned char x) //SPI 写入一个字节(STC 硬件SPI)
  25          {
  26   1       SPDAT=x;
  27   1       while(!(SPSTAT&0x80));
  28   1       SPSTAT=0xc0;
  29   1      }
  30          
  31          /*
  32          void spi_write(unsigned char x) //SPI写出一个字节
  33          {
  34           unsigned char i=0;
  35           for(i=0;i<8;i++)
  36           {
  37            TFT_SDAT=(x<<i)&0x80;
  38            TFT_SCLK=0;  
  39            TFT_SCLK=1;
  40           }
  41          }
  42          */
  43          
  44          unsigned char spi_read() //SPI 读取一个字节(STC 硬件SPI)
  45          {
  46   1       SPDAT=0xff;
  47   1       while(!(SPSTAT&0x80));
  48   1       SPSTAT=0xc0;
  49   1       return SPDAT;
  50   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     64    ----
   CONSTANT SIZE    =   ----    ----
C51 COMPILER V8.05a   STC_SPI                                                              03/14/2009 18:41:31 PAGE 2   

   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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