isr.lst

USB code using I2C bus to communicate with other node

C51 COMPILER V7.06   ISR                                                                   09/06/2003 16:55:56 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE ISR
OBJECT MODULE PLACED IN Isr.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE Isr.c OPTIMIZE(2,SPEED) DEBUG OBJECTEXTEND

stmt level    source

   1          /*
   2             //*************************************************************************
   3             //
   4             //                           ZLGMCU
   5             //                           www.zlgmcu.com
   6             // File Name:        isr.C
   7             // Revision:         0.4(2002-07-08)
   8             // Author:           Liu Ying Bin
   9             // Use library:  USB51S.LIB
  10             // Note:                     USB51S.LIB不带DMA控制功能
  11             //*************************************************************************
  12             */
  13          
  14          
  15          #include <stdio.h>
  16          #include <string.h>
  17          #include <reg51.h>    
  18          #include "isr.h"
  19          
  20          /*
  21          //*************************************************************************
  22          //  Public static data
  23          //*************************************************************************
  24          */
  25          
  26          EPPFLAGS bEPPflags;
  27          CONTROL_XFER ControlData;
  28          unsigned int data d12_addr;
  29          byte_count byte_cnt;
  30          unsigned int data D12_DATA;
  31          unsigned int data D12_COMMAND;
  32          
  33          
  34          /* ISR static vars */
  35          unsigned char idata GenEpBuf[EP1_PACKET_SIZE];
  36          unsigned char idata EpBuf[EP2_PACKET_SIZE];
  37          IO_REQUEST idata ioRequest;
  38          
  39          //厂商请求入口地址
  40          code void (*VendorDeviceRequest[])(void) =
  41          {
  42                  reserved,
  43                  reserved,
  44                  reserved,
  45                  reserved,
  46                  reserved,
  47                  reserved,
  48                  reserved,
  49                  reserved,
  50                  reserved,
  51                  reserved,
  52                  reserved,
  53                  reserved,
  54                  reserved,
  55                  reserved,
C51 COMPILER V7.06   ISR                                                                   09/06/2003 16:55:56 PAGE 2   

  56                  reserved,
  57                  reserved
  58          };
  59          
  60          //USB总线重新连接(先断开，再连接)子程序
  61          void reconnect_USB(void)
  62          {
  63   1              unsigned long clk_cnt;
  64   1      
  65   1              D12SUSPD = 0;
  66   1              disconnect_USB();
  67   1              for (clk_cnt=0;clk_cnt<=0x9000;clk_cnt++) {}
  68   1              connect_USB();
  69   1      }
  70          
  71          //断开USB总线连接
  72          void disconnect_USB(void)
  73          {
  74   1              D12_SetMode(D12_NOLAZYCLOCK, D12_SETTOONE | D12_CLOCK_12M);
  75   1      }
  76          
  77          //连接到USB总线
  78          void connect_USB(void)
  79          {
  80   1              DISABLE;
  81   1              bEPPflags.value = 0;
  82   1              ENABLE;
  83   1              D12_SetDMA(0x0);//设置D12工作模式
  84   1              D12_SetMode(D12_NOLAZYCLOCK|D12_SOFTCONNECT, D12_SETTOONE | D12_CLOCK_12M);
  85   1      }
  86          
  87          //总线复位服务子程序
  88          void D12_busreset(void)
  89          {
  90   1      //可添加用户代码(进行检测到总线复位的操作)
  91   1      }
  92          
  93          //DMA操作结束中断服务子程序
  94          void dma_eot(void)
  95          {
  96   1      //可添加用户代码(进行检测DMA操作结束的操作)
  97   1      }
  98          
  99          //D12挂起服务子程序
 100          void d12_suspend(void)
 101          {
 102   1      //可添加用户代码
 103   1      }
 104          
 105          //端点1输出中断操作
 106          void ep1_txdone(void)
 107          {
 108   1              D12_ReadLastTransactionStatus(3);//复位中断寄存器
 109   1              //可添加用户代码(进行检测端点号3IN令牌的操作)
 110   1      }
 111          
 112          //端点1输入中断操作
 113          void ep1_rxdone(void)
 114          {
 115   1              unsigned char len;
 116   1              D12_ReadLastTransactionStatus(2);//复位中断寄存器
 117   1              len = D12_ReadEndpoint(2, sizeof(GenEpBuf), GenEpBuf);//读取端点1接收数据
C51 COMPILER V7.06   ISR                                                                   09/06/2003 16:55:56 PAGE 3   

 118   1              if (len != 0)
 119   1                      bEPPflags.bits.ep1_rxdone = 1;//标志端点1接收到数据
 120   1      }
 121          
 122          //端点2输出中断操作
 123          void ep2_txdone(void)
 124          {
 125   1              D12_ReadLastTransactionStatus(5);//复位中断寄存器
 126   1              //可添加用户代码(进行检测端点号5IN令牌的操作)
 127   1              if(byte_cnt.word>0)
 128   1              {
 129   2                      if(byte_cnt.word<64)
 130   2                      {
 131   3                              D12_WriteEndpoint(5, byte_cnt.byte.low, EpBuf);
 132   3                              byte_cnt.word=0;
 133   3                      }
 134   2                      else
 135   2                      {
 136   3                              byte_cnt.word=byte_cnt.word-64;
 137   3                              D12_WriteEndpoint(5, 64, EpBuf);
 138   3                      }
 139   2              }
 140   1      }
 141          
 142          //端点2输入中断操作
 143          void ep2_rxdone(void)
 144          {
 145   1              unsigned char len;
 146   1              D12_ReadLastTransactionStatus(4);//复位中断寄存器
 147   1              len = D12_ReadEndpoint(4, 64, EpBuf);//读取端点2接收数据
 148   1              if (bEPPflags.bits.ep2buf_full)
 149   1                      len = D12_ReadEndpoint(4, 64, EpBuf);//读取端点2接收数据
 150   1              if (len != 0)
 151   1                      bEPPflags.bits.ep2_rxdone = 1;//标志端点2接收到数据
 152   1      }
 153          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    281    ----
   CONSTANT SIZE    =     48    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     33       6
   IDATA SIZE       =     78    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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