Diff: libraries/ad5270/AD5270.h

Revision:

4:5c1b28aff7e1

Parent:

3:1a8c14043a4e

--- a/libraries/ad5270/AD5270.h	Fri Apr 01 10:53:41 2016 +0300
+++ b/libraries/ad5270/AD5270.h	Tue Apr 19 17:55:14 2016 +0300
@@ -59,36 +59,77 @@
 
     /// AD5270 commands
     typedef enum {
-        NO_OP               =  0x00,   ///< No data
-        NO_OP_cmd           =  0x0000, ///< 16 bit no data
-        WRITE_RDAC          =  0x04,   ///< Write to the RDAC Register
-        READ_RDAC           =  0x08,   ///< Read from the RDAC Register
-        STORE_50TP          =  0x0C,   ///< Write to the RDAC to memory
-        SW_RST              =  0x10,   ///< Software reset to last memory location
-        READ_50TP_CONTENTS  =  0x14,   ///< Read the last memory contents
-        READ_50TP_ADDRESS   =  0x18,   ///< Read the last memory address
-        WRITE_CTRL_REG      =  0x1C,   ///< Write to the control Register
-        READ_CTRL_REG       =  0x20,   ///< Read from the control Register
-        SW_SHUTDOWN         =  0x24,   ///< Software shutdown (0) - Normal, (1) - Shutdown
-        HI_Zupper           =  0x80,   ///< Get the SDO line ready for High Z
-        HI_Zlower           =  0x01,   ///< Puts AD5270 into High Z mode
+        NO_OP               =  0x00,    ///< No data
+        NO_OP_cmd           =  0x0000,  ///< 16 bit no data
+        WRITE_RDAC          =  0x04,    ///< Write to the RDAC Register
+        READ_RDAC           =  0x08,    ///< Read from the RDAC Register
+        STORE_50TP          =  0x0C,    ///< Write from RDAC to memory
+        SW_RST              =  0x10,    ///< Software reset to last memory location
+        READ_50TP_CONTENTS  =  0x14,    ///< Read the last memory contents
+        READ_50TP_ADDRESS   =  0x18,    ///< Read the last memory address
+        WRITE_CTRL_REG      =  0x1C,    ///< Write to the control Register
+        READ_CTRL_REG       =  0x20,    ///< Read from the control Register
+        SW_SHUTDOWN         =  0x24,    ///< Software shutdown (0) - Normal, (1) - Shutdown
+        HI_Zupper           =  0x80,    ///< Get the SDO line ready for High Z
+        HI_Zlower           =  0x01,    ///< Puts AD5270 into High Z mode
         HI_Z_Cmd            =  0x8001   ///< Puts AD5270 into High Z mode*/
     } AD5270Commands_t;
 
+    typedef enum {
+        NORMAL_MODE = 0,
+        SHUTDOWN_MODE = 1
+    } AD5270Modes_t;
+
+    typedef enum {
+        PROGRAM_50TP_ENABLE = 1,
+        RDAC_WRITE_PROTECT = 2,
+        R_PERFORMANCE_ENABLE = 4,
+        MEMORY_PROGRAM_SUCCESFUL = 8
+    } AD5270ControlRegisterBits_t;
+
+    // SPI configuration & constructor
     AD5270(PinName CS = SPI_CS, float max_resistance = 20000.0, PinName MOSI = SPI_MOSI, PinName MISO = SPI_MISO, PinName SCK = SPI_SCK);
+    void frequency(int hz);
+
+    /* RDAC commands */
+    void write_ctrl_reg(uint8_t data);
+    uint8_t read_ctrl_reg(void);
+    void change_mode(AD5270Modes_t mode);
     void set_SDO_HiZ(void);
-    void frequency(int hz);
-    uint16_t calc_RDAC(float resistance);
+
+    /* Wiper R/W methods*/
+    void reset_RDAC(void);
+    void write_wiper_reg(uint16_t data);
+    uint16_t read_wiper_reg(void);
+
+
+    /* Low level methods */
     uint16_t write_cmd(uint8_t command, uint16_t data = 0x00);
     uint16_t write_reg(uint16_t data);
+
+    /* Methods that deal with resistance in float format*/
+    uint16_t calc_RDAC(float resistance);
+    float write_RDAC(float resistance);
+    float read_RDAC(void);
     float get_max_resistance(void);
 
+    /* 50 TP methods */
+    void enable_50TP_programming(void);
+    void store_50TP(void);
+    void disable_50TP_programming(void);
+    uint8_t read_50TP_last_address(void);
+    uint16_t read_50TP_memory(uint8_t address);
+
     SPI ad5270;    ///< SPI instance of the AD5270
-    DigitalOut cs; ///< DigitalOut instance for the chipselect of the AD5270
+    DigitalOut cs; ///< DigitalOut instance for the chip select of the AD5270
 
 private:
     const static int _RESET = 0xff;
+    const static int _REG_OPERATION_TIMEOUT = 2;
+    const static int _MEMORY_OPERATION_TIMEOUT = 6;
+    const static int _WRITE_OPERATION_50TP_TIMEOUT = 350;
     const static int _DUMMY_BYTE = 0xAA;
+    const static uint8_t _SPI_MODE = 1;
     float _max_resistance;
 };