kazushiro tanimoto / 53L0A1

test

Dependencies:   ST_INTERFACES X_NUCLEO_COMMON

Components/STMPE1600/stmpe1600_class.h@9:294485283baf, 2017-02-01 (annotated)

Committer:
zero515
Date:
Wed Feb 01 10:15:30 2017 +0000
Revision:
9:294485283baf
Parent:
0:c523920bcc09 
test2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
johnAlexander 0:c523920bcc09 1 /**
johnAlexander 0:c523920bcc09 2 ******************************************************************************
johnAlexander 0:c523920bcc09 3 * @file stmpe1600_class.h
johnAlexander 0:c523920bcc09 4 * @author AST / EST
johnAlexander 0:c523920bcc09 5 * @version V0.0.1
johnAlexander 0:c523920bcc09 6 * @date 14-April-2015
johnAlexander 0:c523920bcc09 7 * @brief Header file for component stmpe1600
johnAlexander 0:c523920bcc09 8 ******************************************************************************
johnAlexander 0:c523920bcc09 9 * @attention
johnAlexander 0:c523920bcc09 10 *
johnAlexander 0:c523920bcc09 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
johnAlexander 0:c523920bcc09 12 *
johnAlexander 0:c523920bcc09 13 * Redistribution and use in source and binary forms, with or without modification,
johnAlexander 0:c523920bcc09 14 * are permitted provided that the following conditions are met:
johnAlexander 0:c523920bcc09 15 * 1. Redistributions of source code must retain the above copyright notice,
johnAlexander 0:c523920bcc09 16 * this list of conditions and the following disclaimer.
johnAlexander 0:c523920bcc09 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
johnAlexander 0:c523920bcc09 18 * this list of conditions and the following disclaimer in the documentation
johnAlexander 0:c523920bcc09 19 * and/or other materials provided with the distribution.
johnAlexander 0:c523920bcc09 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
johnAlexander 0:c523920bcc09 21 * may be used to endorse or promote products derived from this software
johnAlexander 0:c523920bcc09 22 * without specific prior written permission.
johnAlexander 0:c523920bcc09 23 *
johnAlexander 0:c523920bcc09 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
johnAlexander 0:c523920bcc09 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
johnAlexander 0:c523920bcc09 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
johnAlexander 0:c523920bcc09 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
johnAlexander 0:c523920bcc09 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
johnAlexander 0:c523920bcc09 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
johnAlexander 0:c523920bcc09 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
johnAlexander 0:c523920bcc09 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
johnAlexander 0:c523920bcc09 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
johnAlexander 0:c523920bcc09 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
johnAlexander 0:c523920bcc09 34 *
johnAlexander 0:c523920bcc09 35 ******************************************************************************
johnAlexander 0:c523920bcc09 36 */
johnAlexander 0:c523920bcc09 37 #ifndef __STMPE1600_CLASS
johnAlexander 0:c523920bcc09 38 #define __STMPE1600_CLASS
johnAlexander 0:c523920bcc09 39 /* Includes ------------------------------------------------------------------*/
johnAlexander 0:c523920bcc09 40 #include "DevI2C.h"
johnAlexander 0:c523920bcc09 41
johnAlexander 0:c523920bcc09 42 #define STMPE1600_DEF_DEVICE_ADDRESS (uint8_t)0x42*2
johnAlexander 0:c523920bcc09 43 #define STMPE1600_DEF_DIGIOUT_LVL 1
johnAlexander 0:c523920bcc09 44
johnAlexander 0:c523920bcc09 45 /** STMPE1600 registr map **/
johnAlexander 0:c523920bcc09 46 #define ChipID_0_7 (uint8_t)0x00
johnAlexander 0:c523920bcc09 47 #define ChipID_8_15 (uint8_t)0x01
johnAlexander 0:c523920bcc09 48 #define VersionId (uint8_t)0x02
johnAlexander 0:c523920bcc09 49 #define SYS_CTRL (uint8_t)0x03
johnAlexander 0:c523920bcc09 50 #define IEGPIOR_0_7 (uint8_t)0x08
johnAlexander 0:c523920bcc09 51 #define IEGPIOR_8_15 (uint8_t)0x09
johnAlexander 0:c523920bcc09 52 #define ISGPIOR_0_7 (uint8_t)0x0A
johnAlexander 0:c523920bcc09 53 #define ISGPIOR_8_15 (uint8_t)0x0B
johnAlexander 0:c523920bcc09 54 #define GPMR_0_7 (uint8_t)0x10
johnAlexander 0:c523920bcc09 55 #define GPMR_8_15 (uint8_t)0x11
johnAlexander 0:c523920bcc09 56 #define GPSR_0_7 (uint8_t)0x12
johnAlexander 0:c523920bcc09 57 #define GPSR_8_15 (uint8_t)0x13
johnAlexander 0:c523920bcc09 58 #define GPDR_0_7 (uint8_t)0x14
johnAlexander 0:c523920bcc09 59 #define GPDR_8_15 (uint8_t)0x15
johnAlexander 0:c523920bcc09 60 #define GPIR_0_7 (uint8_t)0x16
johnAlexander 0:c523920bcc09 61 #define GPIR_8_15 (uint8_t)0x17
johnAlexander 0:c523920bcc09 62
johnAlexander 0:c523920bcc09 63 #define SOFT_RESET (uint8_t)0x80
johnAlexander 0:c523920bcc09 64
johnAlexander 0:c523920bcc09 65 typedef enum {
johnAlexander 0:c523920bcc09 66 // GPIO Expander pin names
johnAlexander 0:c523920bcc09 67 GPIO_0=0,
johnAlexander 0:c523920bcc09 68 GPIO_1,
johnAlexander 0:c523920bcc09 69 GPIO_2,
johnAlexander 0:c523920bcc09 70 GPIO_3,
johnAlexander 0:c523920bcc09 71 GPIO_4,
johnAlexander 0:c523920bcc09 72 GPIO_5,
johnAlexander 0:c523920bcc09 73 GPIO_6,
johnAlexander 0:c523920bcc09 74 GPIO_7,
johnAlexander 0:c523920bcc09 75 GPIO_8,
johnAlexander 0:c523920bcc09 76 GPIO_9,
johnAlexander 0:c523920bcc09 77 GPIO_10,
johnAlexander 0:c523920bcc09 78 GPIO_11,
johnAlexander 0:c523920bcc09 79 GPIO_12,
johnAlexander 0:c523920bcc09 80 GPIO_13,
johnAlexander 0:c523920bcc09 81 GPIO_14,
johnAlexander 0:c523920bcc09 82 GPIO_15,
johnAlexander 0:c523920bcc09 83 NOT_CON
johnAlexander 0:c523920bcc09 84 } ExpGpioPinName;
johnAlexander 0:c523920bcc09 85
johnAlexander 0:c523920bcc09 86 typedef enum {
johnAlexander 0:c523920bcc09 87 INPUT = 0,
johnAlexander 0:c523920bcc09 88 OUTPUT,
johnAlexander 0:c523920bcc09 89 NOT_CONNECTED
johnAlexander 0:c523920bcc09 90 }ExpGpioPinDirection;
johnAlexander 0:c523920bcc09 91
johnAlexander 0:c523920bcc09 92 /* Classes -------------------------------------------------------------------*/
johnAlexander 0:c523920bcc09 93 /** Class representing a single stmpe1600 GPIO expander output pin
johnAlexander 0:c523920bcc09 94 */
johnAlexander 0:c523920bcc09 95 class STMPE1600DigiOut {
johnAlexander 0:c523920bcc09 96
johnAlexander 0:c523920bcc09 97 public:
johnAlexander 0:c523920bcc09 98 /** Constructor
johnAlexander 0:c523920bcc09 99 * @param[in] &i2c device I2C to be used for communication
johnAlexander 0:c523920bcc09 100 * @param[in] outpinname the desired out pin name to be created
johnAlexander 0:c523920bcc09 101 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 0:c523920bcc09 102 * @param[in] lvl the default ot pin level
johnAlexander 0:c523920bcc09 103 */
johnAlexander 0:c523920bcc09 104 STMPE1600DigiOut (DevI2C &i2c, ExpGpioPinName outpinname, uint8_t DevAddr=STMPE1600_DEF_DEVICE_ADDRESS, bool lvl=STMPE1600_DEF_DIGIOUT_LVL): dev_i2c(i2c), expdevaddr(DevAddr), exppinname(outpinname)
johnAlexander 0:c523920bcc09 105 {
johnAlexander 0:c523920bcc09 106 uint8_t data[2];
johnAlexander 0:c523920bcc09 107 if (exppinname == NOT_CON) return;
johnAlexander 0:c523920bcc09 108 /* set the exppinname as output */
johnAlexander 0:c523920bcc09 109 dev_i2c.i2c_read(data, expdevaddr, GPDR_0_7, 1);
johnAlexander 0:c523920bcc09 110 dev_i2c.i2c_read(&data[1], expdevaddr, GPDR_8_15, 1);
johnAlexander 0:c523920bcc09 111 *(uint16_t*)data = *(uint16_t*)data | (1<<(uint16_t)exppinname); // set gpio as out
johnAlexander 0:c523920bcc09 112 dev_i2c.i2c_write(data, expdevaddr, GPDR_0_7, 1);
johnAlexander 0:c523920bcc09 113 dev_i2c.i2c_write(&data[1], expdevaddr, GPDR_8_15, 1);
johnAlexander 0:c523920bcc09 114 write(lvl);
johnAlexander 0:c523920bcc09 115 }
johnAlexander 0:c523920bcc09 116
johnAlexander 0:c523920bcc09 117 /**
johnAlexander 0:c523920bcc09 118 * @brief Write on the out pin
johnAlexander 0:c523920bcc09 119 * @param[in] lvl level to write
johnAlexander 0:c523920bcc09 120 * @return 0 on Success
johnAlexander 0:c523920bcc09 121 */
johnAlexander 0:c523920bcc09 122 void write (int lvl)
johnAlexander 0:c523920bcc09 123 {
johnAlexander 0:c523920bcc09 124 uint8_t data[2];
johnAlexander 0:c523920bcc09 125 if (exppinname == NOT_CON) return;
johnAlexander 0:c523920bcc09 126 /* set the exppinname state to lvl */
johnAlexander 0:c523920bcc09 127 dev_i2c.i2c_read(data, expdevaddr, GPSR_0_7, 2);
johnAlexander 0:c523920bcc09 128 *(uint16_t*)data = *(uint16_t*)data & (uint16_t)(~(1<<(uint16_t)exppinname)); // set pin mask
johnAlexander 0:c523920bcc09 129 if (lvl) *(uint16_t*)data = *(uint16_t*)data | (uint16_t)(1<<(uint16_t)exppinname);
johnAlexander 0:c523920bcc09 130 dev_i2c.i2c_write(data, expdevaddr, GPSR_0_7, 2);
johnAlexander 0:c523920bcc09 131 }
johnAlexander 0:c523920bcc09 132
johnAlexander 0:c523920bcc09 133 /**
johnAlexander 0:c523920bcc09 134 * @brief Overload assignement operator
johnAlexander 0:c523920bcc09 135 */
johnAlexander 0:c523920bcc09 136 STMPE1600DigiOut& operator=(int lvl)
johnAlexander 0:c523920bcc09 137 {
johnAlexander 0:c523920bcc09 138 write (lvl);
johnAlexander 0:c523920bcc09 139 return *this;
johnAlexander 0:c523920bcc09 140 }
johnAlexander 0:c523920bcc09 141
johnAlexander 0:c523920bcc09 142 private:
johnAlexander 0:c523920bcc09 143 DevI2C &dev_i2c;
johnAlexander 0:c523920bcc09 144 uint8_t expdevaddr;
johnAlexander 0:c523920bcc09 145 ExpGpioPinName exppinname;
johnAlexander 0:c523920bcc09 146 };
johnAlexander 0:c523920bcc09 147
johnAlexander 0:c523920bcc09 148 /* Classes -------------------------------------------------------------------*/
johnAlexander 0:c523920bcc09 149 /** Class representing a single stmpe1600 GPIO expander input pin
johnAlexander 0:c523920bcc09 150 */
johnAlexander 0:c523920bcc09 151 class STMPE1600DigiIn
johnAlexander 0:c523920bcc09 152 {
johnAlexander 0:c523920bcc09 153 public:
johnAlexander 0:c523920bcc09 154 /** Constructor
johnAlexander 0:c523920bcc09 155 * @param[in] &i2c device I2C to be used for communication
johnAlexander 0:c523920bcc09 156 * @param[in] inpinname the desired input pin name to be created
johnAlexander 0:c523920bcc09 157 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 0:c523920bcc09 158 */
johnAlexander 0:c523920bcc09 159 STMPE1600DigiIn (DevI2C &i2c, ExpGpioPinName inpinname, uint8_t DevAddr=STMPE1600_DEF_DEVICE_ADDRESS): dev_i2c(i2c), expdevaddr(DevAddr), exppinname(inpinname)
johnAlexander 0:c523920bcc09 160 {
johnAlexander 0:c523920bcc09 161 uint8_t data[2];
johnAlexander 0:c523920bcc09 162 if (exppinname == NOT_CON) return;
johnAlexander 0:c523920bcc09 163 /* set the exppinname as input pin direction */
johnAlexander 0:c523920bcc09 164 dev_i2c.i2c_read(data, expdevaddr, GPDR_0_7, 2);
johnAlexander 0:c523920bcc09 165 *(uint16_t*)data = *(uint16_t*)data & (uint16_t)(~(1<<(uint16_t)exppinname)); // set gpio as in
johnAlexander 0:c523920bcc09 166 dev_i2c.i2c_write(data, expdevaddr, GPDR_0_7, 2);
johnAlexander 0:c523920bcc09 167 }
johnAlexander 0:c523920bcc09 168
johnAlexander 0:c523920bcc09 169 /**
johnAlexander 0:c523920bcc09 170 * @brief Read the input pin
johnAlexander 0:c523920bcc09 171 * @return The pin logical state 0 or 1
johnAlexander 0:c523920bcc09 172 */
johnAlexander 0:c523920bcc09 173 bool read ()
johnAlexander 0:c523920bcc09 174 {
johnAlexander 0:c523920bcc09 175 uint8_t data[2];
johnAlexander 0:c523920bcc09 176 if (exppinname == NOT_CON) return 0;
johnAlexander 0:c523920bcc09 177 /* read the exppinname */
johnAlexander 0:c523920bcc09 178 dev_i2c.i2c_read(data, expdevaddr, GPMR_0_7, 2);
johnAlexander 0:c523920bcc09 179 *(uint16_t*)data = *(uint16_t*)data & (uint16_t)(1<<(uint16_t)exppinname); // mask the in gpio
johnAlexander 0:c523920bcc09 180 if (data[0] || data[1]) return 1;
johnAlexander 0:c523920bcc09 181 return 0;
johnAlexander 0:c523920bcc09 182 }
johnAlexander 0:c523920bcc09 183
johnAlexander 0:c523920bcc09 184 operator int()
johnAlexander 0:c523920bcc09 185 {
johnAlexander 0:c523920bcc09 186 return read();
johnAlexander 0:c523920bcc09 187 }
johnAlexander 0:c523920bcc09 188
johnAlexander 0:c523920bcc09 189 private:
johnAlexander 0:c523920bcc09 190 DevI2C &dev_i2c;
johnAlexander 0:c523920bcc09 191 uint8_t expdevaddr;
johnAlexander 0:c523920bcc09 192 ExpGpioPinName exppinname;
johnAlexander 0:c523920bcc09 193 };
johnAlexander 0:c523920bcc09 194
johnAlexander 0:c523920bcc09 195 /* Classes -------------------------------------------------------------------*/
johnAlexander 0:c523920bcc09 196 /** Class representing a whole stmpe1600 component (16 gpio)
johnAlexander 0:c523920bcc09 197 */
johnAlexander 0:c523920bcc09 198 class STMPE1600 {
johnAlexander 0:c523920bcc09 199
johnAlexander 0:c523920bcc09 200 public:
johnAlexander 0:c523920bcc09 201 /** Constructor
johnAlexander 0:c523920bcc09 202 * @param[in] &i2c device I2C to be used for communication
johnAlexander 0:c523920bcc09 203 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 0:c523920bcc09 204 */
johnAlexander 0:c523920bcc09 205 STMPE1600 (DevI2C &i2c, uint8_t DevAddr=STMPE1600_DEF_DEVICE_ADDRESS ) : dev_i2c(i2c)
johnAlexander 0:c523920bcc09 206 {
johnAlexander 0:c523920bcc09 207 dev_i2c = i2c;
johnAlexander 0:c523920bcc09 208 expdevaddr = DevAddr;
johnAlexander 0:c523920bcc09 209 writeSYS_CTRL (SOFT_RESET);
johnAlexander 0:c523920bcc09 210
johnAlexander 0:c523920bcc09 211 GPDR0_15 = (uint16_t)0; // gpio dir all IN
johnAlexander 0:c523920bcc09 212 write16bitReg (GPDR_0_7, &GPDR0_15);
johnAlexander 0:c523920bcc09 213 GPSR0_15 = (uint16_t)0x0ffff; // gpio status all 1
johnAlexander 0:c523920bcc09 214 write16bitReg (GPSR_0_7, &GPSR0_15);
johnAlexander 0:c523920bcc09 215 }
johnAlexander 0:c523920bcc09 216
johnAlexander 0:c523920bcc09 217 /**
johnAlexander 0:c523920bcc09 218 * @brief Write the SYS_CTRL register
johnAlexander 0:c523920bcc09 219 * @param[in] Data to be written (bit fields)
johnAlexander 0:c523920bcc09 220 */
johnAlexander 0:c523920bcc09 221 void writeSYS_CTRL (uint8_t data) // data = SOFT_RESET reset the device
johnAlexander 0:c523920bcc09 222 {
johnAlexander 0:c523920bcc09 223 dev_i2c.i2c_write((uint8_t*)data, expdevaddr, SYS_CTRL, 1);
johnAlexander 0:c523920bcc09 224 }
johnAlexander 0:c523920bcc09 225
johnAlexander 0:c523920bcc09 226 /**
johnAlexander 0:c523920bcc09 227 * @brief Set the out pin
johnAlexander 0:c523920bcc09 228 * @param[in] The pin name
johnAlexander 0:c523920bcc09 229 * @return 0 on Success
johnAlexander 0:c523920bcc09 230 */
johnAlexander 0:c523920bcc09 231 bool setGPIO (ExpGpioPinName PinName)
johnAlexander 0:c523920bcc09 232 {
johnAlexander 0:c523920bcc09 233 if (PinName == NOT_CON) return true;
johnAlexander 0:c523920bcc09 234 GPSR0_15 = GPSR0_15 | ((uint16_t)0x0001<<PinName);
johnAlexander 0:c523920bcc09 235 write16bitReg (GPSR_0_7 , &GPSR0_15);
johnAlexander 0:c523920bcc09 236 return false;
johnAlexander 0:c523920bcc09 237 }
johnAlexander 0:c523920bcc09 238
johnAlexander 0:c523920bcc09 239 /**
johnAlexander 0:c523920bcc09 240 * @brief Clear the out pin
johnAlexander 0:c523920bcc09 241 * @param[in] The pin name
johnAlexander 0:c523920bcc09 242 * @return 0 on Success
johnAlexander 0:c523920bcc09 243 */
johnAlexander 0:c523920bcc09 244 bool clrGPIO (ExpGpioPinName PinName)
johnAlexander 0:c523920bcc09 245 {
johnAlexander 0:c523920bcc09 246 if (PinName == NOT_CON) return true;
johnAlexander 0:c523920bcc09 247 GPSR0_15 = GPSR0_15 & (~((uint16_t)0x0001<<PinName));
johnAlexander 0:c523920bcc09 248 write16bitReg (GPSR_0_7 , &GPSR0_15);
johnAlexander 0:c523920bcc09 249 return false;
johnAlexander 0:c523920bcc09 250 }
johnAlexander 0:c523920bcc09 251
johnAlexander 0:c523920bcc09 252 /**
johnAlexander 0:c523920bcc09 253 * @brief Read the input pin
johnAlexander 0:c523920bcc09 254 * @param[in] The pin name
johnAlexander 0:c523920bcc09 255 * @return The logical pin level
johnAlexander 0:c523920bcc09 256 */
johnAlexander 0:c523920bcc09 257 bool rdGPIO (ExpGpioPinName PinName)
johnAlexander 0:c523920bcc09 258 {
johnAlexander 0:c523920bcc09 259 uint16_t gpmr0_15;
johnAlexander 0:c523920bcc09 260 if (PinName == NOT_CON) return true;
johnAlexander 0:c523920bcc09 261 read16bitReg (GPMR_0_7, &gpmr0_15);
johnAlexander 0:c523920bcc09 262 gpmr0_15 = gpmr0_15 & ((uint16_t)0x0001<<PinName);
johnAlexander 0:c523920bcc09 263 if (gpmr0_15) return true;
johnAlexander 0:c523920bcc09 264 return false;
johnAlexander 0:c523920bcc09 265 }
johnAlexander 0:c523920bcc09 266
johnAlexander 0:c523920bcc09 267 /**
johnAlexander 0:c523920bcc09 268 * @brief Set the pin direction
johnAlexander 0:c523920bcc09 269 * @param[in] The pin name
johnAlexander 0:c523920bcc09 270 * @param[in] The pin direction
johnAlexander 0:c523920bcc09 271 * @return 0 on success
johnAlexander 0:c523920bcc09 272 */
johnAlexander 0:c523920bcc09 273 bool setGPIOdir (ExpGpioPinName PinName, ExpGpioPinDirection PinDir)
johnAlexander 0:c523920bcc09 274 {
johnAlexander 0:c523920bcc09 275 if (PinName == NOT_CON || PinDir == NOT_CONNECTED) return true;
johnAlexander 0:c523920bcc09 276 GPDR0_15 = GPDR0_15 & (~((uint16_t)0x0001<<PinName)); // clear the Pin
johnAlexander 0:c523920bcc09 277 GPDR0_15 = GPDR0_15 | ((uint16_t)PinDir<<PinName);
johnAlexander 0:c523920bcc09 278 write16bitReg (GPDR_0_7 , &GPDR0_15);
johnAlexander 0:c523920bcc09 279 return false;
johnAlexander 0:c523920bcc09 280 }
johnAlexander 0:c523920bcc09 281
johnAlexander 0:c523920bcc09 282 /**
johnAlexander 0:c523920bcc09 283 * @brief Read a 16 bits register
johnAlexander 0:c523920bcc09 284 * @param[in] The register address
johnAlexander 0:c523920bcc09 285 * @param[in] The pointer to the read data
johnAlexander 0:c523920bcc09 286 */
johnAlexander 0:c523920bcc09 287 void read16bitReg (uint8_t Reg16Addr, uint16_t *Reg16Data)
johnAlexander 0:c523920bcc09 288 {
johnAlexander 0:c523920bcc09 289 dev_i2c.i2c_read((uint8_t*)Reg16Data, expdevaddr, Reg16Addr, 2);
johnAlexander 0:c523920bcc09 290 }
johnAlexander 0:c523920bcc09 291
johnAlexander 0:c523920bcc09 292 /**
johnAlexander 0:c523920bcc09 293 * @brief Write a 16 bits register
johnAlexander 0:c523920bcc09 294 * @param[in] The register address
johnAlexander 0:c523920bcc09 295 * @param[in] The pointer to the data to be written
johnAlexander 0:c523920bcc09 296 */
johnAlexander 0:c523920bcc09 297 void write16bitReg (uint8_t Reg16Addr, uint16_t *Reg16Data)
johnAlexander 0:c523920bcc09 298 {
johnAlexander 0:c523920bcc09 299 dev_i2c.i2c_write((uint8_t*)Reg16Data, expdevaddr, Reg16Addr, 2);
johnAlexander 0:c523920bcc09 300 }
johnAlexander 0:c523920bcc09 301
johnAlexander 0:c523920bcc09 302 private:
johnAlexander 0:c523920bcc09 303 DevI2C &dev_i2c;
johnAlexander 0:c523920bcc09 304 uint16_t GPDR0_15; // local copy of bit direction reg
johnAlexander 0:c523920bcc09 305 uint16_t GPSR0_15; // local copy of bit status reg
johnAlexander 0:c523920bcc09 306 uint8_t expdevaddr; // expander device i2c addr
johnAlexander 0:c523920bcc09 307 };
johnAlexander 0:c523920bcc09 308
johnAlexander 0:c523920bcc09 309 #endif // __STMPE1600_CLASS
johnAlexander 0:c523920bcc09 310
johnAlexander 0:c523920bcc09 311