fw.c

在KEILC下进行编译的程序,单片机可以进行AD,DA数据采集

//-----------------------------------------------------------------------------
//   File:      fw.c
//   Contents:   Firmware frameworks task dispatcher and device request parser
//            source.
//   包含硬件框架任务 调度和设备请求源
// indent 3.  NO TABS!
//
// $Revision: 1 $
// $Date: 07/03/26 8:36a $
//
//   Copyright (c) 1997 weiyong. All rights reserved
//-----------------------------------------------------------------------------
#include "fx2.h"
#include "fx2regs.h"
#include "string.h"
#include "io.h"
#include "key.h"
#include "led.h"
//#include "serial.h"
#include "eeprom.h"

//-----------------------------------------------------------------------------
// Constants
//-----------------------------------------------------------------------------
#define DELAY_COUNT   0x9248*8L  // Delay for 8 sec at 24Mhz, 4 sec at 48
#define _IFREQ  48000            // IFCLK constant for Synchronization Delay
#define _CFREQ  48000            // CLKOUT constant for Synchronization Delay

//-----------------------------------------------------------------------------
// Random Macros
//-----------------------------------------------------------------------------
#define   min(a,b) (((a)<(b))?(a):(b))
#define   max(a,b) (((a)>(b))?(a):(b))

  // Registers which require a synchronization delay, see section 15.14
  // FIFORESET        FIFOPINPOLAR
  // INPKTEND         OUTPKTEND
  // EPxBCH:L         REVCTL
  // GPIFTCB3         GPIFTCB2
  // GPIFTCB1         GPIFTCB0
  // EPxFIFOPFH:L     EPxAUTOINLENH:L
  // EPxFIFOCFG       EPxGPIFFLGSEL
  // PINFLAGSxx       EPxFIFOIRQ
  // EPxFIFOIE        GPIFIRQ
  // GPIFIE           GPIFADRH:L
  // UDMACRCH:L       EPxGPIFTRIG
  // GPIFTRIG
  
  // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
  //      ...these have been replaced by GPIFTC[B3:B0] registers
  
#include "fx2sdly.h"             // Define _IFREQ and _CFREQ above this #include

//-----------------------------------------------------------------------------
// Global Variables全局变量
//-----------------------------------------------------------------------------
volatile BOOL   GotSUD;//可变的BOOL变量
BOOL      Rwuen;
BOOL      Selfpwr;
volatile BOOL   Sleep;                  // Sleep mode enable flag睡眠模式的表示

WORD   pDeviceDscr;   // Pointer to Device Descriptor; Descriptors may be moved
WORD   pDeviceQualDscr; //设备限定描述
WORD   pHighSpeedConfigDscr;//高速配置
WORD   pFullSpeedConfigDscr;//全速配置
WORD   pConfigDscr;
WORD   pOtherConfigDscr;   
WORD   pStringDscr;   

//char   AD_X;
// int tttttt;
//-----------------------------------------------------------------------------
// Prototypes函数原形
//-----------------------------------------------------------------------------
void SetupCommand(void);                  //设置命令函数
void TD_Init(void);                       //初始化函数
void TD_Poll(void);                       //测量？？
//----------------------
void Sys_Timer0_Init ();

void Sys_Timer1_Init (); 
void ad0809();

//void tttttt_ioa();
//----------------------
BOOL TD_Suspend(void);                    //挂起函数，设备进入挂起前调用
BOOL TD_Resume(void);                     //设备恢复后调用。

BOOL DR_GetDescriptor(void);              //得到描述符。BOOL变量
BOOL DR_SetConfiguration(void);           //设置配置
BOOL DR_GetConfiguration(void);           //得到配置
BOOL DR_SetInterface(void);
BOOL DR_GetInterface(void);
BOOL DR_GetStatus(void);                  //得到状态
BOOL DR_ClearFeature(void);               //清除状态
BOOL DR_SetFeature(void);                 //设置特征
BOOL DR_VendorCmnd(void);                 //用户自定义的函数

// this table is used by the epcs macro 宏//里面没有EP0。
const char code  EPCS_Offset_Lookup_Table[] =
{
   0,    // EP1OUT
   1,    // EP1IN
   2,    // EP2OUT
   2,    // EP2IN
   3,    // EP4OUT
   3,    // EP4IN
   4,    // EP6OUT
   4,    // EP6IN
   5,    // EP8OUT
   5,    // EP8IN
};



//用于生成地址和状态寄存器的端点。
// macro for generating the address of an endpoint's control and status register (EPnCS)
#define epcs(EP) (EPCS_Offset_Lookup_Table[(EP & 0x7E) | (EP > 128)] + 0xE6A1)

//-----------------------------------------------------------------------------
// Code
//-----------------------------------------------------------------------------

// Task dispatcher任务调度程序，分配任务
void main(void)
{
   DWORD   i;
   WORD   offset;//偏移量
   DWORD   DevDescrLen;//设备描述的长度
   DWORD   j=0;
   WORD   IntDescrAddr;//内部描述的地址
   WORD   ExtDescrAddr;//外部描述的地址
	BYTE temp_data;

   // Initialize Global States
   Sleep = FALSE;               // Disable sleep mode
   Rwuen = FALSE;               // Disable remote wakeup
   Selfpwr = FALSE;            // Disable self powered
   GotSUD = FALSE;               // Clear "Got setup data" flag

   // Initialize user device
   TD_Init();
	
   //////user init/////用户函数的初始化，包括IO初始化，寄存器初始化，显示初始化。
	IO_Init();
	REG_Init();
	OKey_RP_Init();
	Disp_Init();
	EEPROMInit();
//------------------------
   Sys_Timer0_Init ();
   
//   Sys_Timer1_Init (); 
//------------------------
   // The following section of code is used to relocate the descriptor table. 
   //下面的部分代码用于重新部署描述表
   // Since the SUDPTRH and SUDPTRL are assigned the address of the descriptor 
   //因为SUDPTRH and SUDPTRL被分配到描述表的地址，描绘表必须被定位到片内内存中
   // table, the descriptor table must be located in on-part memory.
   // The 4K demo tools locate all code sections in external memory.
   //4K的演示工具把所有的代码定位到片外的内存中
   // The descriptor table is relocated by the frameworks ONLY if it is found 
   //只有描述表被发现被定位到外部内存时，描述表被框架重新定位。
   // to be located in external memory.





   pDeviceDscr = (WORD)&DeviceDscr;
   pDeviceQualDscr = (WORD)&DeviceQualDscr;
   pHighSpeedConfigDscr = (WORD)&HighSpeedConfigDscr;
   pFullSpeedConfigDscr = (WORD)&FullSpeedConfigDscr;
   pStringDscr = (WORD)&StringDscr;

   if ((WORD)&DeviceDscr & 0xe000)
   {
      IntDescrAddr = INTERNAL_DSCR_ADDR;
      ExtDescrAddr = (WORD)&DeviceDscr;
      DevDescrLen = (WORD)&UserDscr - (WORD)&DeviceDscr + 2;
      for (i = 0; i < DevDescrLen; i++)
         *((BYTE xdata *)IntDescrAddr+i) = 0xCD;
      for (i = 0; i < DevDescrLen; i++)
         *((BYTE xdata *)IntDescrAddr+i) = *((BYTE xdata *)ExtDescrAddr+i);
      pDeviceDscr = IntDescrAddr;
      offset = (WORD)&DeviceDscr - INTERNAL_DSCR_ADDR;
      pDeviceQualDscr -= offset;
      pConfigDscr -= offset;
      pOtherConfigDscr -= offset;
      pHighSpeedConfigDscr -= offset;
      pFullSpeedConfigDscr -= offset;
      pStringDscr -= offset;
   }

   EZUSB_IRQ_ENABLE();            // Enable USB interrupt (INT2)
   EZUSB_ENABLE_RSMIRQ();            // Wake-up interrupt

   INTSETUP |= (bmAV2EN | bmAV4EN);     // Enable INT 2 & 4 autovectoring

   USBIE |= bmSUDAV | bmSUTOK | bmSUSP | bmURES | bmHSGRANT;   // Enable selected interrupts





  /////////user init///////////
//	SerialPort_Init();//串口的初始化

//Sys_Timer1and2_Init ();
  /////////////////////////////
   EA = 1;                  // Enable 8051 interrupts
#ifndef NO_RENUM
   // Renumerate if necessary.  Do this by checking the renum bit.  If it
   // is already set, there is no need to renumerate.  The renum bit will
   // already be set if this firmware was loaded from an eeprom.
   if(!(USBCS & bmRENUM))
   {
       EZUSB_Discon(TRUE);   // renumerate
   }
#endif







   // unconditionally re-connect.  If we loaded from eeprom we are
   //无条件重新连接，如果我们从EEPROM开始装载，我们断开，需要连接，如果我们重列举，这不是必须的，但不会有
   //任何害处