bulkloop.c

USB2.0芯片 cy7c68013 速度测试

#pragma NOIV               // Do not generate interrupt vectors
//-----------------------------------------------------------------------------
//   File:      bulkloop.c
//   Contents:   Hooks required to implement USB peripheral function.
//
//   Copyright (c) 2000 Cypress Semiconductor All rights reserved
//-----------------------------------------------------------------------------
#include "fx2.h"
#include "fx2regs.h"
#include "fx2sdly.h"            // SYNCDELAY macro

extern BOOL GotSUD;             // Received setup data flag
extern BOOL Sleep;
extern BOOL Rwuen;
extern BOOL Selfpwr;

BYTE Configuration;             // Current configuration
BYTE AlternateSetting;          // Alternate settings

#define VR_NAKALL_ON    0xD0
#define VR_NAKALL_OFF   0xD1

//-----------------------------------------------------------------------------
// Task Dispatcher hooks
//   The following hooks are called by the task dispatcher.
//-----------------------------------------------------------------------------

void TD_Init(void)             // Called once at startup
{
   // set the CPU clock to 48MHz
   CPUCS = ((CPUCS & ~bmCLKSPD) | bmCLKSPD1) ;

   // set the slave FIFO interface to 48MHz
 IFCONFIG |= 0x40;

  // 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  //      ...these have been replaced by GPIFTC[B3:B0] registers

  // default: all endpoints have their VALID bit set
  // default: TYPE1 = 1 and TYPE0 = 0 --> BULK  
  // default: EP2 and EP4 DIR bits are 0 (OUT direction)
  // default: EP6 and EP8 DIR bits are 1 (IN direction)
  // default: EP2, EP4, EP6, and EP8 are double buffered
  //
  // we are just using the default values, yes this is not necessary...
 EP1OUTCFG = 0xA0;
//  SYNCDELAY;  
 EP1INCFG = 0xA3;
//  SYNCDELAY;                    // see TRM section 15.14
  //EP2CFG Endpoint 2 Configuration VALID DIR TYPE1 TYPE0 SIZE 0 BUF1 BUF0
  //端点2配置，OUT，双缓冲，BULK
  //0xA0 四缓冲
  //0xA2 双缓冲
  //0xA3 三缓冲 
  SYNCDELAY; 
  EP2CFG = 0xA2;     // EP2OUT, bulk, size 512, 2x buffered
  SYNCDELAY;                       
  EP4CFG = 0x00;     // EP4 not valid
  SYNCDELAY;              
  EP6CFG = 0x00;     // EP6 not valid  
  SYNCDELAY; 
  EP8CFG = 0x00;     // EP8 not valid
    
  
  //根据端点2缓冲区数目多少来确定装载端点计数器的次数
  SYNCDELAY; 
  EP2BCL = 0x80;               
  SYNCDELAY;                    
  EP2BCL = 0x80;
// SYNCDELAY;  
// EP2BCL = 0x80;               
// SYNCDELAY;                    
// EP2BCL = 0x80;
                   

  // enable dual autopointer feature
  AUTOPTRSETUP |= 0x01;

  Rwuen = TRUE;                 // Enable remote-wakeup
}


void TD_Poll(void)              // Called repeatedly while the device is idle
{

  WORD count;
  unsigned char temp;
  WORD i;
  if(!(EP2468STAT & bmEP2EMPTY))//ENDPOINT2非空，则开始接收数据
  { 
/* *///////////////////////////////////////////   
        APTR1H = MSB( &EP2FIFOBUF );
        APTR1L = LSB( &EP2FIFOBUF );

        count = (EP2BCH << 8) + EP2BCL;

        // 循环将端点2中的数据取出，因为单片机指令慢，会影响测试速度
         for( i = 0x0000; i < count; i++ )
        {
           // setup to transfer EP2OUT buffer to EP6IN buffer using AUTOPOINTER(s)
           temp = EXTAUTODAT1;
		   
        }
////////////////////////////////////本来没有