ardupilot/libraries/DataFlash/DataFlash.h

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/* ************************************************************ */
/* Test for DataFlash Log library */
/* ************************************************************ */
#ifndef DataFlash_h
#define DataFlash_h
// arduino mega SPI pins
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define DF_DATAOUT 51 // MOSI
#define DF_DATAIN 50 // MISO
#define DF_SPICLOCK 52 // SCK
#define DF_SLAVESELECT 53 // SS (PB0)
#define DF_RESET 31 // RESET (PC6)
#else // normal arduino SPI pins...
#define DF_DATAOUT 11 //MOSI
#define DF_DATAIN 12 //MISO
#define DF_SPICLOCK 13 //SCK
#define DF_SLAVESELECT 10 //SS
#endif
// AT45DB161D Commands (from Datasheet)
#define DF_TRANSFER_PAGE_TO_BUFFER_1 0x53
#define DF_TRANSFER_PAGE_TO_BUFFER_2 0x55
#define DF_STATUS_REGISTER_READ 0xD7
#define DF_READ_MANUFACTURER_AND_DEVICE_ID 0x9F
#define DF_PAGE_READ 0xD2
#define DF_BUFFER_1_READ 0xD4
#define DF_BUFFER_2_READ 0xD6
#define DF_BUFFER_1_WRITE 0x84
#define DF_BUFFER_2_WRITE 0x87
#define DF_BUFFER_1_TO_PAGE_WITH_ERASE 0x83
#define DF_BUFFER_2_TO_PAGE_WITH_ERASE 0x86
#define DF_PAGE_ERASE 0x81
#define DF_BLOCK_ERASE 0x50
#define DF_SECTOR_ERASE 0x7C
#define DF_CHIP_ERASE_0 0xC7
#define DF_CHIP_ERASE_1 0x94
#define DF_CHIP_ERASE_2 0x80
#define DF_CHIP_ERASE_3 0x9A
class DataFlash_Class
{
private:
// DataFlash Log variables...
unsigned char df_BufferNum;
unsigned char df_Read_BufferNum;
unsigned int df_BufferIdx;
unsigned int df_Read_BufferIdx;
unsigned int df_PageAdr;
unsigned int df_Read_PageAdr;
unsigned char df_Read_END;
unsigned char df_Stop_Write;
//Methods
unsigned char BufferRead (unsigned char BufferNum, unsigned int IntPageAdr);
void BufferWrite (unsigned char BufferNum, unsigned int IntPageAdr, unsigned char Data);
void BufferToPage (unsigned char BufferNum, unsigned int PageAdr, unsigned char wait);
void PageToBuffer(unsigned char BufferNum, unsigned int PageAdr);
void WaitReady();
unsigned char ReadStatusReg();
unsigned char ReadStatus();
unsigned int PageSize();
public:
unsigned char df_manufacturer;
unsigned char df_device_0;
unsigned char df_device_1;
unsigned int df_PageSize;
DataFlash_Class(); // Constructor
void Init();
void ReadManufacturerID();
int GetPage();
int GetWritePage();
void PageErase (unsigned int PageAdr);
void ChipErase ();
// Write methods
void StartWrite(int PageAdr);
void FinishWrite();
void WriteByte(unsigned char data);
void WriteInt(int data);
void WriteLong(long data);
// Read methods
void StartRead(int PageAdr);
unsigned char ReadByte();
int ReadInt();
long ReadLong();
};
extern DataFlash_Class DataFlash;
#endif