mainloop.lst

c51的USB的通信程序库,支持51兼容的

C51 COMPILER V6.14  MAINLOOP                                                               04/08/2002 12:07:01 PAGE 1   


C51 COMPILER V6.14, COMPILATION OF MODULE MAINLOOP
OBJECT MODULE PLACED IN Mainloop.OBJ
COMPILER INVOKED BY: C:\MANLEY\PMEDWIN\C51.EXE Mainloop.c DB OE SMALL ROM(LARGE) 

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          #include <reg51.h>                /* special function register declarations   */
  16          #include "mainloop.h"
  17          #include "isr.h"
  18          
  19          /*
  20          //*************************************************************************
  21          //  Public static data
  22          //*************************************************************************
  23          */
  24          
  25          extern EPPFLAGS bEPPflags;
  26          extern unsigned char idata GenEpBuf[];
  27          extern unsigned char idata EpBuf[];
  28          
  29          
  30          //D12中断服务
  31          usb_isr() interrupt 0
  32          {
  33   1      	DISABLE;
  34   1      	fn_usb_isr();//调用D12中断服务子程序
  35   1      	ENABLE;
  36   1      }
  37          
  38          void main(void)
  39          {
  40   1      	P0 = 0xFF;//初始化I/O口
  41   1      	P1 = 0xFF;
  42   1      	P2 = 0xFF;
  43   1      	P3 = 0xFF;
  44   1      	MCU_D12CS = 0x0;
  45   1      	D12SUSPD = 0;
  46   1      
  47   1      	IT0 = 0;//初始化中断
  48   1      	EX0 = 1;
  49   1      	PX0 = 0;
  50   1      	EA = 1;
  51   1      
  52   1      	MCU_D12CS = 0x1;
  53   1      	MCU_D12CS = 0x0;
  54   1      	D12_SetDMA(0x0);
  55   1      	bEPPflags.value = 0;
C51 COMPILER V6.14  MAINLOOP                                                               04/08/2002 12:07:01 PAGE 2   

  56   1      
  57   1      	reconnect_USB();//联接USB总线
  58   1      
  59   1      	/* Main program loop */
  60   1      	while( TRUE ){
  61   2      		if(bEPPflags.bits.configuration)
  62   2      			check_key_LED();//连接正常,调用按键和LED控制处理
  63   2      
  64   2      		usbserve();//USB服务数据处理
  65   2      
  66   2      	} // Main Loop
  67   1      }
  68          
  69          void check_key_LED(void)
  70          {
  71   1      	static unsigned char c, last_key = 0xf;
  72   1      
  73   1      	c = MCU_SWM0 & MCU_SWM1;
  74   1      	c &= 0x0f;
  75   1      	if (c != last_key) {
  76   2      		D12_WriteEndpoint(3, 1, &c);//按键状态改变,发送信息给主机
  77   2      	}
  78   1      	last_key = c;
  79   1      
  80   1      	if(bEPPflags.bits.ep1_rxdone) {
  81   2      		DISABLE;//接收到主机发来的LED控制信息
  82   2      		bEPPflags.bits.ep1_rxdone = 0;
  83   2      		ENABLE;
  84   2      		MCU_LED0 = !(GenEpBuf[3] & 0x1);//控制LED状态
  85   2      		MCU_LED1 = !(GenEpBuf[3] & 0x2);
  86   2      	}
  87   1      }
  88          
  89          
  90          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    187    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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