Diff: W25Q16BV.h

Revision:

0:ee27d4c12433

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/W25Q16BV.h	Tue May 20 15:42:31 2014 +0000
@@ -0,0 +1,87 @@
+// 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
+