Shows how to use a display, the onboard SD Card and the onboard SPI Flash. Requires a display module with direct Arduino pinning
Dependencies: DmTftLibrary SDFileSystem mbed
W25Q16BV.h
- Committer:
- displaymodule
- Date:
- 2015-01-22
- Revision:
- 6:0f69891b105e
- Parent:
- 0:3ecd25651727
File content as of revision 6:0f69891b105e:
// W25Q16BV.h #ifndef W25Q16BV_H #define W25Q16BV_H #include "mbed.h" //#include "BitBangedSPI.h" #define SPI_FREQ 1000000 #define SPI_MODE 0 #define SPI_NBIT 8 #define POWERUP_INST 0xAB #define STATUS1_INST 0x05 #define STATUS2_INST 0x35 #define JDEC_INST 0x9F #define UNIQUE_INST 0x4B #define WE_INST 0x06 #define WD_INST 0x04 #define R_INST 0x03 #define W_INST 0x02 #define S_ERASE_INST 0x20 /* 4KB sector erase */ #define B_ERASE_INST 0xD8 /* 64KB block erase */ #define C_ERASE_INST 0x60 #define DUMMY_ADDR 0x00 #define WAIT_US_TRES1 5 /* Power Up: 3us */ //#define WAIT_US_TPUW 10000 /* Power Up Write Time: 1-10ms */ //#define WAIT_US_TBP 50 /* Byte Program Time: 20-50us */ //#define WAIT_US_TPP 3000 /* Page Program Time: 0.7-3ms */ //#define WAIT_US_TSE 400000 /* Sector Erase Time: 30-400ms */ //#define WAIT_US_TBE 1000000 /* 64KB Block Erase Time: 1000ms */ //#define WAIT_US_TCE 10000000 /* Chip Erase Time: 3-10s */ //#define ADDR_BMASK2 0x00ff0000 //#define ADDR_BMASK1 0x0000ff00 //#define ADDR_BMASK0 0x000000ff //#define ADDR_BSHIFT2 16 //#define ADDR_BSHIFT1 8 //#define ADDR_BSHIFT0 0 #define PAGE_SIZE 256 #define SECTOR_SIZE 4096 #define NUM_SECTORS 512 #define NUM_64KB_BLOCKS 32 #define STATUS_1_BUSY 0x01 class W25Q16BV /*: public BitBangedSPI*/ { public: W25Q16BV(PinName mosi, PinName miso, PinName sclk, PinName cs); int readByte(int addr); // takes a 24-bit (3 bytes) address and returns the data (1 byte) at that location int readByte(int a2, int a1, int a0); // takes the address in 3 separate bytes A[23,16], A[15,8], A[7,0] void readStream(int addr, char* buf, int count); // takes a 24-bit address, reads count bytes, and stores results in buf void readJEDEC(uint8_t* manId, uint8_t* memType, uint8_t* cap); uint8_t readStatus1(); uint8_t readStatus2(); void writeByte(int addr, int data); // takes a 24-bit (3 bytes) address and a byte of data to write at that location void writeByte(int a2, int a1, int a0, int data); // takes the address in 3 separate bytes A[23,16], A[15,8], A[7,0] void writeStream(int addr, char* buf, int count); // write count bytes of data from buf to memory, starting at addr void chipErase(); // erase all data on chip bool blockErase(int startBlock, int num=1); // erase all data in the specified number of 64KB blocks, return false if block number is invalid bool sectorErase(int startSector, int num=1); // erase all data in the specified number of 4KB sectors, return false if sector number is invalid private: void exitDeepPowerDown(); void waitWhileBusy(); void writeEnable(); // write enable void writeDisable(); // write disable void chipEnable(); // chip enable void chipDisable(); // chip disable // BitBangedSPI _spi; SPI _spi; DigitalOut _cs; }; #endif