uart.lst

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C51 COMPILER V8.02   UART                                                                  04/26/2008 21:37:28 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE UART
OBJECT MODULE PLACED IN uart.OBJ
COMPILER INVOKED BY: D:\Keil1\C51\BIN\C51.EXE uart.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          
   2          
   3          #include "uart.h"
   4          #include <REGX51.H>
   5          
   6          
   7          /*
   8          
   9          #define UARTBUFSIZE 4
  10          typedef struct tUARTBUF
  11          {
  12           BYTE bBuffer[UARTBUFSIZE];
  13           BYTE bWritePtr;
  14           BYTE bReadPtr;
  15           BYTE bCntData;
  16          }
  17          UARTBUF;
  18          
  19           
  20          
  21          UARTBUF  uart_RcevBuf;
  22          UARTBUF  uart_SendBuf;
  23          BIT   uart_TranStopped;
  24          
  25           
  26          
  27          void uartInit(void)
  28          {
  29           BYTE save;
  30          
  31           uart_RcevBuf.bWritePtr = 0;
  32           uart_RcevBuf.bReadPtr = 0;
  33           uart_RcevBuf.bCntData = 0;
  34           //
  35           uart_SendBuf.bWritePtr = 0;
  36           uart_SendBuf.bReadPtr = 0;
  37           uart_SendBuf.bCntData = 0;
  38           uart_TranStopped = 1;
  39          
  40           // 57600 baud with 11.0592MHz osc
  41           save = TMOD;
  42           TMOD = (save & T0_MASK_) | (0x20 & T1_MASK_);
  43           TH1 = 255;
  44           TL1 = 255;
  45           TR1 = 1;
  46          
  47           PCON = SMOD_;
  48          
  49           REN  = 1;
  50           SM2  = 0;
  51           SM1  = 1;
  52           SM0  = 0;
  53          
  54           ES = 1;
  55          }
C51 COMPILER V8.02   UART                                                                  04/26/2008 21:37:28 PAGE 2   

  56          
  57          
  58          void uartIntrq(void) interrupt SIO_VECTOR
  59          {
  60           if (TI)
  61           {
  62            TI = 0;
  63          
  64            if (uart_SendBuf.bCntData)
  65            {
  66             uart_SendBuf.bReadPtr %= UARTBUFSIZE;
  67             SBUF = uart_SendBuf.bBuffer[ uart_SendBuf.bReadPtr ];
  68             uart_SendBuf.bReadPtr++;
  69             uart_SendBuf.bCntData--;
  70            }
  71            else
  72            {
  73             uart_TranStopped = 1;
  74            }
  75           }
  76          
  77           if (RI)
  78           {
  79            RI = 0;
  80          
  81            uart_RcevBuf.bWritePtr %= UARTBUFSIZE;
  82            uart_RcevBuf.bBuffer[ uart_RcevBuf.bWritePtr ] = SBUF;
  83            uart_RcevBuf.bWritePtr++;
  84            uart_RcevBuf.bCntData++;
  85           }
  86          }
  87          
  88          
  89          void uartSendByte(BYTE byte)
  90          {
  91           uart_SendBuf.bWritePtr %= UARTBUFSIZE;
  92           uart_SendBuf.bBuffer[ uart_SendBuf.bWritePtr ] = byte;
  93           uart_SendBuf.bWritePtr++;
  94           uart_SendBuf.bCntData++;
  95          
  96           if (uart_TranStopped)
  97           {
  98            uart_TranStopped = 0;
  99            TI = 1;
 100           }
 101          }
 102          
 103          
 104          BYTE uartReceiveByte(void)
 105          {
 106           BYTE rt;
 107          
 108           if (uart_RcevBuf.bCntData)
 109           {
 110            uart_RcevBuf.bReadPtr %= UARTBUFSIZE;
 111            rt = uart_RcevBuf.bBuffer[ uart_RcevBuf.bReadPtr ];
 112            uart_RcevBuf.bReadPtr++;
 113            uart_RcevBuf.bCntData--;
 114           }
 115          
 116           return rt;
 117          }
C51 COMPILER V8.02   UART                                                                  04/26/2008 21:37:28 PAGE 3   

 118          
 119          
 120          BYTE uartCntReceive(void)
 121          {
 122           return uart_RcevBuf.bCntData;
 123          }
 124          
 125          BYTE uartCntSend(void)
 126          {
 127           return uart_SendBuf.bCntData;
 128          }
 129          
 130          */


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =   ----    ----
   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)