cf.h

TI 5402 dsp芯片读写cf卡的源程序

/*********************************************************************
* Author:	Miguel Hernandez IV
* Filename: cf.h
* Date:		7-2-01
*********************************************************************/

/*====================================================================
	I/O Space Addresses (IDE Mode Transfer Function)
====================================================================*/

/*---- Control Block Registers ----*/
/*
ioport unsigned portA806;
ioport unsigned portA807;
*/
/*---- Command Block Registers ----*/
/*
ioport unsigned portB000;
ioport unsigned portB001;
ioport unsigned portB002;
ioport unsigned portB003;
ioport unsigned portB004;
ioport unsigned portB005;
ioport unsigned portB006;
ioport unsigned portB007;
*/
/*---- Control Block Registers ----*/
/*
#define AlternateStatusRegister portA806
#define ControlRegister 		portA806
#define DriveAddressRegister 	portA807
*/
/*---- Command Block Registers ----*/
/*
#define DataRegister 			portB000
#define ErrorRegister 			portB001
#define FeaturesRegister 		portB001
#define SectorCountRegister 	portB002
#define SectorNumberRegister 	portB003
#define CylinderLowRegister 	portB004
#define CylinderHighRegister 	portB005
#define CardHeadRegister 		portB006
#define StatusRegister 			portB007
#define CommandRegister 		portB007 
*/
/*==================================================================*/

/*====================================================================
	ATA Commands
====================================================================*/

/*#define CIdentifyDrive 				0xEC
#define CExecuteDriveDiagnostics 	0x90
#define CReadSectors                0x20
#define CSetFeatures                0xEF
#define CRecalibrate                0x10
#define CWriteSectors               0x30*/

extern unsigned short CReadSectors;
extern unsigned short CWriteSectors;
extern unsigned short CIdentifyDrive;

/*==================================================================*/ 

/*====================================================================
	Drive/Card Number
====================================================================*/
/*
#define Drive_0 0xE0
*/
/*==================================================================*/

/*====================================================================
	Function Prototypes
====================================================================*/

/*---- CompactFlash Status Checks ----*/
void CF_CheckReadyStatus();
void CF_CheckBusyStatus();
void CF_CheckDrqStatus();
void CheckErrorStatus();
/*---- Reset ----*/
void CF_HardwareReset();
/*---- Initialize C54x ----*/
void DSP_Init();
/*---- Commands ----*/
void CF_IssueCommand(unsigned long PhysicalSector, 
                  unsigned short SectorCount, unsigned short Command);
void CF_IdentifyDrive();
/*---- CF Read/Write -----*/                      
void ReadCF(unsigned long PhysicalSector, 
           unsigned short SectorCount);
void WriteCF(unsigned long PhysicalSector, 
           unsigned short SectorCount);

/*==================================================================*/    
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