Diff: W25Q32.h

Revision:

0:cc8118fdcc22

Child:

1:d3928deefb53

diff -r 000000000000 -r cc8118fdcc22 W25Q32.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/W25Q32.h	Wed Jan 08 11:13:52 2020 +0100
@@ -0,0 +1,57 @@
+#ifndef W25Q32_H
+#define W25Q32_H
+
+#include "mbed.h"
+
+#define SPI_FREQ        1000000
+#define SPI_MODE        0
+#define SPI_NBIT        8
+
+#define WRITE_ENABLE    0x06
+#define WRITE_DISABLE   0x04
+#define READ_DATA       0x03
+#define WRITE_DATA      0x02
+#define CHIP_ERASE      0x60
+#define DEV_ID          0x90
+
+#define DUMMY_ADDR      0x00
+#define WAIT_TIME       1000
+
+#define ADDR_BMASK2     0x00ff0000
+#define ADDR_BMASK1     0x0000ff00
+#define ADDR_BMASK0     0x000000ff
+
+#define ADDR_BSHIFT2    16
+#define ADDR_BSHIFT1    8
+#define ADDR_BSHIFT0    0
+
+class W25Q80BV {
+public:
+	W25Q80BV(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    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
+    int     getMID( ) ;                                     // get the manufacturer ID
+    
+private:
+    void    writeEnable();                                  // write enable
+    void    writeDisable();                                 // write disable
+    void    chipEnable();                                   // chip enable
+    void    chipDisable();                                  // chip disable
+    int     writeSPI(int data);                             // software SPI write
+    
+    // SPI inputs/outputs
+    DigitalOut  _cs;
+    DigitalOut  _mosi;
+    DigitalIn   _miso;
+    DigitalOut  _sclk;
+};
+
+#endif
\ No newline at end of file