W25Q64FV.h

00001 #include <mbed.h>
00002 #include <stdint.h>
00003 
00004 #define CMD_WREN                0x06
00005 #define CMD_WR_DISABLE          0x04
00006 #define CMD_RDSR1               0x05
00007 #define CMD_RDSR2               0x35
00008 #define CMD_WRSR1               0x01  //write status register
00009 #define CMD_PAGEPROG            0x02
00010 
00011 #define CMD_ERASE_SECTOR        0x20
00012 #define CMD_ERASE_BLOCK32       0x52
00013 #define CMD_ERASE_BLOCK64       0xD8
00014 #define CMD_ERASE_CHIP          0x60
00015 
00016 #define CMD_PROG_SUSPEND        0x75
00017 #define CMD_PROG_RESUME         0x7A
00018 #define CMD_PWR_DOWN            0xB9
00019 
00020 #define CMD_READ_DATA           0x03
00021 #define CMD_READ_HS             0x0B
00022 
00023 #define CMD_MANU_ID             0x90        
00024 #define CMD_JEDEC_ID            0x9F        // Read Manufacturer and JDEC Device ID 
00025 #define CMD_UNIQUE_ID           0x4B
00026 
00027 #define CMD_READ_SFDP           0x5A
00028 #define CMD_ERASE_SEC_REG       0x44
00029 #define CMD_PROG_SEC_REG        0x42
00030 #define CMD_READ_SEC_REG        0x48
00031 #define CMD_ENABLE_RES          0x66
00032 #define CMD_RESET               0x99
00033 
00034 #define DUMMY                   0x00 // Dummy byte which can be changed to any value
00035 
00036 
00037 class W25Q64FV
00038 {
00039 public:
00040 
00041     static const int SID_LEN = 32;
00042     static const int SECTOR_LEN = 4096;
00043     static const int PAGE_LEN = 256;
00044     static const int MAX_ADDR = 0x7FFFFF;
00045 
00046 private:
00047 
00048     SPI* spi;
00049     DigitalOut* cs;
00050 
00051     int frequency; 
00052     static uint8_t sector_buffer[SECTOR_LEN];
00053 
00054 
00055 public:
00056     W25Q64FV(PinName mosi, PinName miso, PinName sclk, PinName cs, int frequency=10000000);
00057     ~W25Q64FV();
00058     
00059     uint16_t Id();
00060     uint32_t JEDECId();
00061     void W25Q64_readManufacturer(uint8_t* d); 
00062 
00063     // Read Status Register    
00064     // bit 0 BUSY 1=Write in progress
00065     // bit 1 WEL  1=Write Enabled
00066     // bit 2 BP0  block write protection
00067     // bit 3 BP1  block write protection
00068     // bit 4 BP2  block write protection
00069     // bit 5 BP3  block write protection
00070     // bit 6 SEC  1=Security ID space locked
00071     // bit 7 BPL  1=BP0..BP3 are read-only, 0=r/w
00072     uint8_t readStatus();
00073     void    writeStatusReg(int addr); // Write Status Register
00074     
00075     void    writeEnable();            // Write Enable
00076     void    writeDisable();           // Write Disable
00077     
00078     void    writeSecurityReg(int addr);
00079 
00080     uint8_t wait_while_busy(void);
00081 
00082     uint8_t readByte(int32_t addr);
00083     bool    read(uint32_t addr, uint8_t* dst, uint32_t len);
00084     
00085     void    hsread(uint32_t addr, uint8_t* dst, uint32_t len, int frequency);
00086 
00087 
00088     uint8_t readSFDP(int addr);
00089 
00090     void    sector_erase_4k(uint32_t addr);
00091     void    block_erase_32k(uint32_t addr);
00092     void    block_erase_64k(uint32_t addr);
00093     void    chip_erase();
00094 
00095     bool    page_program(uint32_t addr, uint8_t* write_buffer, uint8_t len);
00096 
00097     bool    write(int32_t addr, uint8_t* write_buffer, int32_t len);
00098     
00099     void    writeArray(uint32_t address, uint8_t* pData, uint32_t arrayLength);
00100     void    readArray(uint32_t address, uint8_t* pData, uint32_t arrayLength);
00101 
00102     
00103 };