Diff: VL6180XA1/STMPE1600/STMPE1600.h

Revision:

0:293917667c17

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/VL6180XA1/STMPE1600/STMPE1600.h	Thu Mar 21 09:19:56 2019 +0000
@@ -0,0 +1,208 @@
+#ifndef STMPE1600_H
+#define STMPE1600_H
+
+#include "mbed.h"
+
+#define STMPE1600_DEF_DEVICE_ADDRESS  (uint8_t)0x42*2   
+#define STMPE1600_DEF_DIGIOUT_LVL      1
+
+/**  STMPE1600 registr map **/
+#define ChipID_0_7      (uint8_t)0x00
+#define ChipID_8_15     (uint8_t)0x01
+#define VersionId       (uint8_t)0x02
+#define SYS_CTRL        (uint8_t)0x03
+#define IEGPIOR_0_7     (uint8_t)0x08
+#define IEGPIOR_8_15      (uint8_t)0x09
+#define ISGPIOR_0_7     (uint8_t)0x0A
+#define ISGPIOR_8_15      (uint8_t)0x0B
+#define GPMR_0_7          (uint8_t)0x10
+#define GPMR_8_15         (uint8_t)0x11
+#define GPSR_0_7          (uint8_t)0x12
+#define GPSR_8_15         (uint8_t)0x13
+#define GPDR_0_7          (uint8_t)0x14
+#define GPDR_8_15         (uint8_t)0x15
+#define GPIR_0_7          (uint8_t)0x16
+#define GPIR_8_15         (uint8_t)0x17
+
+#define SOFT_RESET          (uint8_t)0x80
+
+
+#define STMPE1600_DEFAULT_ID 0x01
+
+typedef enum {
+    // GPIO Expander pin names
+    GPIO_0=  0,
+    GPIO_1 ,
+    GPIO_2 ,
+    GPIO_3 ,            
+    GPIO_4 ,
+    GPIO_5 ,
+    GPIO_6 ,
+    GPIO_7 ,            
+    GPIO_8 ,
+    GPIO_9 ,
+    GPIO_10 ,
+    GPIO_11 ,            
+    GPIO_12 ,
+    GPIO_13 ,
+    GPIO_14 ,
+    GPIO_15 ,
+    NOT_CON
+} exp_gpio_pin_name;   
+
+typedef enum {
+    INPUT = 0,
+    OUTPUT,
+    NOT_CONNECTED
+} exp_gpio_pin_direction;
+
+
+class STMPE1600 {
+public: 
+    /** Constructor
+    * @param[in] &i2c device I2C to be used for communication
+    * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
+    */ 
+    STMPE1600 (I2C *i2c, uint8_t DevAddr=STMPE1600_DEF_DEVICE_ADDRESS );
+
+    /**
+     * @brief       Write the SYS_CTRL register 
+     * @param[in]   Data to be written (bit fields)
+     */     
+    void write_sys_ctrl (uint8_t data)     // data = SOFT_RESET reset the device
+    {
+        // _dev_i2c->i2c_write((uint8_t*)SYS_CTRL, _expdevaddr, data, 1);
+        write(&data,SYS_CTRL,1);
+    }
+      
+    /**
+     * @brief       Set the out pin
+     * @param[in]   The pin name
+     * @return      0 on Success
+     */         
+    bool set_gpio (exp_gpio_pin_name pin_name) 
+    {
+          if (pin_name == NOT_CON) return true;         
+          _gpsro_15 = _gpsro_15 | ((uint16_t)0x0001<<pin_name);
+          write_16_bit_reg (GPSR_0_7 , &_gpsro_15);
+          return false;
+    }
+    
+    /**
+     * @brief       Clear the out pin
+     * @param[in]   The pin name
+     * @return      0 on Success
+     */         
+    bool clr_gpio (exp_gpio_pin_name pin_name) 
+    {
+          if (pin_name == NOT_CON) return true;         
+          _gpsro_15 = _gpsro_15 & (~((uint16_t)0x0001<<pin_name));
+          write_16_bit_reg (GPSR_0_7 , &_gpsro_15);
+          return false;
+    }       
+    
+    /**
+     * @brief       Read the input pin
+     * @param[in]   The pin name
+     * @return      The logical pin level
+     */                 
+    bool rd_gpio (exp_gpio_pin_name pin_name) 
+    {               
+          uint16_t gpmr0_15;
+          if (pin_name == NOT_CON) return true;
+          read_16_bit_reg (GPMR_0_7, &gpmr0_15);
+          gpmr0_15 = gpmr0_15 & ((uint16_t)0x0001<<pin_name);
+          if (gpmr0_15) {
+            return true;
+        }
+          return false;         
+    }
+    
+    /**
+     * @brief       Set the pin direction
+     * @param[in]   The pin name
+     * @param[in]   The pin direction    
+     * @return      0 on success
+     */
+    bool set_gpio_dir (exp_gpio_pin_name pin_name, exp_gpio_pin_direction pin_dir) 
+    {
+        if (pin_name == NOT_CON || pin_dir == NOT_CONNECTED) {
+            return true;
+        }
+        _gpdro_15 = _gpdro_15 & (~((uint16_t)0x0001<<pin_name));  // clear the Pin
+        _gpdro_15 = _gpdro_15 | ((uint16_t)pin_dir<<pin_name);
+        write_16_bit_reg (GPDR_0_7 , &_gpdro_15);
+        return false;
+    }
+
+    /**
+     * @brief       Read a 16 bits register
+     * @param[in]   The register address
+     * @param[in]   The pointer to the read data
+     */ 
+    void read_16_bit_reg (uint8_t reg_16_addr, uint16_t *reg_16_data)
+    {
+        uint8_t data[2];
+        read(data,reg_16_addr,2);
+        *reg_16_data = data[1] << 8 | data[0];
+    }               
+
+    /**
+     * @brief       Write a 16 bits register
+     * @param[in]   The register address
+     * @param[in]   The pointer to the data to be written
+     */                         
+    void write_16_bit_reg (uint8_t reg_16_addr, uint16_t *reg_16_data)
+    {
+        uint8_t data[2];
+        data[1] = (*reg_16_data >> 8) & 0xff;
+        data[0] = *reg_16_data & 0xff; 
+        write(data,reg_16_addr,2);
+    }   
+    
+    /**
+     * @brief  Read STMPE1600 device id.
+     * @return device ID 0x01
+     */
+    uint8_t readID();
+
+    /**
+     * @brief Test the STMPE1600 device whether connect.
+     * @return [true] connect [false] disconnect. 
+     */
+    bool testConnect();
+
+protected:
+
+    /**
+     * @brief Init device.
+     */
+    void init();
+
+    /**
+     * @brief       Read data from STMPE1600.
+     * @param[out]  The pointer to the read data.
+     * @param[in]   The register address.
+     * @param[in]   The pointer to the data size.
+     */                 
+    void read(uint8_t* pBuffer, uint8_t RegisterAddr, uint16_t NumByteToRead);        
+
+    /**
+     * @brief       Write data to STMPE1600.
+     * @param[in]   The data pointer of write. 
+     * @param[in]   The register address.
+     * @param[in]   The pointer to the data size.
+     */                         
+    void write(uint8_t* pBuffer, uint8_t RegisterAddr, uint16_t NumByteToWrite);
+
+private:                    
+    I2C *_dev_i2c;    
+    uint16_t _gpdro_15;   // local copy of bit direction reg 
+    uint16_t _gpsro_15;   // local copy of bit status reg 
+    uint8_t address; // expander device i2c addr
+};
+
+
+
+
+#endif