at25sf041.h

00001 #ifndef AT25SF041_H
00002 #define AT25SF041_H
00003 
00004 #include "mbed.h"
00005 
00006 #include "at25sf041_commands.h"
00007 
00008 #define spi_transfer(data) _spi.write(data)
00009 
00010 #define DF_CS_inactive _cs = 1
00011 #define DF_CS_active _cs = 0
00012 
00013 #define READY_BUSY 0x01
00014 #define WRITE_ENABLE_LATCH 0x02
00015 
00016 
00017 class AT25SF041
00018 {
00019     public:
00020 
00021         struct ID
00022         {
00023             uint8_t manufacturer;       /**< Manufacturer id                           **/
00024             uint8_t device[2];          /**< Device id                                 **/
00025         };
00026 
00027     public:
00028         /** CTOR **/
00029         AT25SF041(PinName mosi, PinName miso, PinName sclk, PinName cs);
00030         AT25SF041(SPI &spi, PinName cs);
00031         /** DTOR **/
00032         ~AT25SF041();
00033 
00034         /** Setup SPI and pinout **/
00035         void Init();
00036 
00037         uint8_t ReadStatusRegister(int n);
00038         void WriteEnable();
00039         void WriteDisable();
00040         void ReadManufacturerAndDeviceID(struct AT25SF041::ID *id);
00041         void ReadArray(uint32_t address, uint32_t length, uint8_t *buffer);
00042         void WriteArray(uint32_t address, uint32_t length, uint8_t *buffer);
00043         void ChipErase();
00044         void EndAndWait();
00045 
00046     private:
00047         SPI _spi;
00048         DigitalOut _cs;
00049 };
00050 
00051 #endif /* AT25SF041_H */