Cypress Semiconductor AN6077 Instrukcja Użytkownika Pobierz pdf (Strona 78)

APÉNDICES

Apéndice A: Firmware

//-------------------------------------------------------------------------

// File: fw.c

// Contents: Firmware frameworks task dispatcher and

device request parser

// $Archive: /USB/Examples/FX2LP/bulkext/fw.c $

// $Date: 3/23/05 2:53p $

// $Revision: 8 $

//-------------------------------------------------------------------------

#include "fx2.h"

#include "fx2regs.h"

#include "syncdly.h" // SYNCDELAY macro

//-------------------------------------------------------------------------

// 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))

//Definiciones varias

#define PACKETSIZE 64

//END Definiciones varias

//-------------------------------------------------------------------------

// Global Variables

//-------------------------------------------------------------------------

volatile BOOL GotSUD;

BOOL Rwuen;

BOOL Selfpwr;

volatile BOOL Sleep; // Sleep mode enable flag

WORD timebase;

BOOL COUNT_en;

BOOL CAD_en;

WORD pDeviceDscr; // Pointer to Device Descriptor;

Descriptors may be moved

WORD pDeviceQualDscr;

WORD pHighSpeedConfigDscr;

WORD pFullSpeedConfigDscr;

WORD pConfigDscr;

WORD pOtherConfigDscr;

WORD pStringDscr;

//-------------------------------------------------------------------------

// Prototypes

//-------------------------------------------------------------------------

void SetupCommand(void);

void TD_Init(void);

void TD_Poll(void);

BOOL TD_Suspend(void);

BOOL TD_Resume(void);

BOOL DR_GetDescriptor(void);

BOOL DR_SetConfiguration(void);

BOOL DR_GetConfiguration(void);

BOOL DR_SetInterface(void);

BOOL DR_GetInterface(void);

BOOL DR_GetStatus(void);

BOOL DR_ClearFeature(void);

BOOL DR_SetFeature(void);

BOOL DR_VendorCmnd(void);

BOOL Get_Packet(BYTE *); //Manuel

BOOL Contador(WORD timebase, BYTE *Packet); //Manuel

// this table is used by the epcs macro

const char code EPCS_Offset_Lookup_Table[] =

{

0, // EP1OUT

1, // EP1IN

2, // EP2OUT

2, // EP2IN

3, // EP4OUT

3, // EP4IN

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 87 88

Komentarze do niniejszej Instrukcji

Brak uwag

Cypress Semiconductor AN6077 Instrukcja Użytkownika Strona 78

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Networking Cypress Semiconductor AN6077