mainloop.lst

USB D12 SMART 开发套件 usb驱动程序的源代码和技术文档

C51 COMPILER V7.00  MAINLOOP                                                               06/16/2004 13:29:52 PAGE 1   


C51 COMPILER V7.00, COMPILATION OF MODULE MAINLOOP
OBJECT MODULE PLACED IN Mainloop.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE Mainloop.c DEBUG OBJECTEXTEND

stmt level    source

   1          /*
   2             //*************************************************************************
   3             //
   4             //                           ZLGMCU
   5             //                           www.zlgmcu.com
   6             // File Name:        MAINLOOP.C
   7             // Revision:         V0.2(2002-04-08)
   8             // Use Library:      USB51S.LIB
   9             // Note:             USB51S.LIB不带DMA控制功能
  10             //*************************************************************************
  11             */
  12          
  13          #include <stdio.h>
  14          #include <string.h>
  15          
  16          #include <reg51.h>                /* special function register declarations   */
  17          
  18          #include "mainloop.h"
  19          #include "isr.h"
  20          #include "vi2c_c51.h"
  21          
  22          /*
  23          //*************************************************************************
  24          //  Public static data
  25          //*************************************************************************
  26          */
  27          
  28          extern EPPFLAGS bEPPflags;
  29          extern unsigned char idata GenEpBuf[];
  30          extern IO_REQUEST idata ioRequest;
  31          extern unsigned char ioSize, ioCount;
  32          extern unsigned char idata EpBuf[];
  33          extern CONTROL_XFER ControlData;
  34          
  35          bit i;
  36          unsigned char  idata ComEpBuf[8];
  37          rom_addr rwrom_addr,rwrom_type,rwlen;
  38          unsigned char eprom_sla,operate_type,check_dat,rwcount;
  39          unsigned char *eprom_sub;
  40          
  41          
  42          unsigned char code i2crom_mask[]=
  43          {
  44          //页写掩字
  45          0x00,                                   //
  46          0x07,                                   //24c01
  47          0x0f,                                   //24c02
  48          0x0f,                                   //24c04
  49          0x0f,                                   //24c08
  50          0x0f,                                   //24c16
  51          0x1f,                                   //24c64
  52          };
  53          
  54          unsigned int code rom_size[]=
  55          {
C51 COMPILER V7.00  MAINLOOP                                                               06/16/2004 13:29:52 PAGE 2   

  56          //空间大小
  57          0x0000,                                 //
  58          0x007f,                                 //24c01
  59          0x0100,                                 //24c02
  60          0x0200,                                 //24c04
  61          0x0400,                                 //24c08
  62          0x0800,                                 //24c16
  63          0x2000,                                 //24c64
  64          };
  65          
  66          
  67          void init_timer0(void)
  68          {
  69   1              TMOD &= 0XF0;
  70   1              TMOD  |= 0X1;
  71   1              TL0 = 0X0;
  72   1              TH0 = 0X0;
  73   1              ET0 = 1;
  74   1              TR0 = 1;
  75   1              PT0 = 1;
  76   1              EA = 1;
  77   1      }
  78          
  79          void init_special_interrupts(void)
  80          {
  81   1              IT0 = 0;
  82   1              EX0 = 1;
  83   1              PX0 = 0;
  84   1      }
  85          
  86          void init_port()
  87          {
  88   1              P0 = 0xFF;
  89   1              P1 = 0xFF;
  90   1              P2 = 0xFF;
  91   1              P3 = 0xFF;
  92   1              MCU_D12CS = 0x0;
  93   1              D12SUSPD = 0;
  94   1      }
  95          
  96          
  97          timer_isr() interrupt 1
  98          {
  99   1              DISABLE;
 100   1              bEPPflags.bits.timer = 0;
 101   1              ENABLE;
 102   1      }
 103          
 104          usb_isr() interrupt 0
 105          {
 106   1              DISABLE;
 107   1              fn_usb_isr();
 108   1              ENABLE;
 109   1      }
 110          
 111          void main(void)
 112          {
 113   1              init_port();
 114   1              init_timer0();
 115   1              init_special_interrupts();
 116   1      
 117   1              MCU_D12CS = 0x1;
C51 COMPILER V7.00  MAINLOOP                                                               06/16/2004 13:29:52 PAGE 3   

 118   1              MCU_D12CS = 0x0;
 119   1              D12_SetDMA(0x0);
 120   1              bEPPflags.value = 0;
 121   1      
 122   1              /* Power on reset, lightup LEDs
 123   1                 disconnect and reconnect Soft-Connect */
 124   1              reconnect_USB();
 125   1      
 126   1              /* Main program loop */
 127   1              while( TRUE ){
 128   2                      if(bEPPflags.bits.configuration)
 129   2                              i2crw();
 130   2      
 131   2                      usbserve();
 132   2      
 133   2              } // Main Loop
 134   1      
 135   1      }
 136          
 137          
 138          void i2crw(void)
 139          {
 140   1              if (bEPPflags.bits.ep1_rxdone) {
 141   2                      DISABLE;
 142   2                      bEPPflags.bits.ep1_rxdone = 0;
 143   2                      ENABLE;
 144   2                      if (bEPPflags.bits.timer)
 145   2                      {
 146   3                              ComEpBuf[4]=GenEpBuf[0];
 147   3                              ComEpBuf[5]=GenEpBuf[1];
 148   3                              ComEpBuf[6]=GenEpBuf[2];
 149   3                              ComEpBuf[7]=GenEpBuf[3];
 150   3                              check_dat=ComEpBuf[0]^ComEpBuf[1]^ComEpBuf[2]^ComEpBuf[3]^ComEpBuf[4]^ComEpBuf[5]^ComEpBuf[6];
 151   3                              if (check_dat==ComEpBuf[7])
 152   3                              {
 153   4                                      GenEpBuf[0]=0x55;
 154   4                                      GenEpBuf[1]=0xaa;
 155   4                                      bEPPflags.bits.command=1;
 156   4                                      rwrom_type.word=(ComEpBuf[2] <<8)+ComEpBuf[1];
 157   4                                      switch (rwrom_type.word)
 158   4                                      {
 159   5                                              case 0x0001:                            //24c01
 160   5                                              case 0x0002:                            //24c02
 161   5                                              case 0x0003:                            //24c04