ST Expansion SW Team / VL53L3CX_mbed

Rename library

Dependencies:   X_NUCLEO_COMMON ST_INTERFACES

Dependents:   VL53L3CX_NoShield_1Sensor_poll_Mb06x VL53L3_NoShield_1Sensor_polling_Mb63 X_NUCLEO_53L3A2 53L3A2_Ranging

STMPE1600/Stmpe1600.h@7:7f1bbf370283, 2021-07-21 (annotated)

Committer:
charlesmn
Date:
Wed Jul 21 14:07:59 2021 +0000
Revision:
7:7f1bbf370283
Parent:
3:316175f392f7 
Moved vl53l3cx_class.cpp and .h to 53l3a2_RangingClass

Who changed what in which revision?

UserRevisionLine numberNew contents of line
johnAlexander 3:316175f392f7 1 /**
johnAlexander 3:316175f392f7 2 ******************************************************************************
johnAlexander 3:316175f392f7 3 * @file Stmpe1600.h
johnAlexander 3:316175f392f7 4 * @author AST / EST
johnAlexander 3:316175f392f7 5 * @version V0.0.1
johnAlexander 3:316175f392f7 6 * @date 14-April-2015
johnAlexander 3:316175f392f7 7 * @brief Header file for component stmpe1600
johnAlexander 3:316175f392f7 8 ******************************************************************************
johnAlexander 3:316175f392f7 9 * @attention
johnAlexander 3:316175f392f7 10 *
johnAlexander 3:316175f392f7 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
johnAlexander 3:316175f392f7 12 *
johnAlexander 3:316175f392f7 13 * Redistribution and use in source and binary forms, with or without modification,
johnAlexander 3:316175f392f7 14 * are permitted provided that the following conditions are met:
johnAlexander 3:316175f392f7 15 * 1. Redistributions of source code must retain the above copyright notice,
johnAlexander 3:316175f392f7 16 * this list of conditions and the following disclaimer.
johnAlexander 3:316175f392f7 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
johnAlexander 3:316175f392f7 18 * this list of conditions and the following disclaimer in the documentation
johnAlexander 3:316175f392f7 19 * and/or other materials provided with the distribution.
johnAlexander 3:316175f392f7 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
johnAlexander 3:316175f392f7 21 * may be used to endorse or promote products derived from this software
johnAlexander 3:316175f392f7 22 * without specific prior written permission.
johnAlexander 3:316175f392f7 23 *
johnAlexander 3:316175f392f7 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
johnAlexander 3:316175f392f7 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
johnAlexander 3:316175f392f7 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
johnAlexander 3:316175f392f7 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
johnAlexander 3:316175f392f7 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
johnAlexander 3:316175f392f7 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
johnAlexander 3:316175f392f7 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
johnAlexander 3:316175f392f7 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
johnAlexander 3:316175f392f7 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
johnAlexander 3:316175f392f7 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
johnAlexander 3:316175f392f7 34 *
johnAlexander 3:316175f392f7 35 ******************************************************************************
johnAlexander 3:316175f392f7 36 */
johnAlexander 3:316175f392f7 37 #ifndef __STMPE1600_CLASS
johnAlexander 3:316175f392f7 38 #define __STMPE1600_CLASS
johnAlexander 3:316175f392f7 39 /* Includes ------------------------------------------------------------------*/
johnAlexander 3:316175f392f7 40 #include "DevI2C.h"
johnAlexander 3:316175f392f7 41
johnAlexander 3:316175f392f7 42 #define STMPE1600_DEF_DEVICE_ADDRESS (uint8_t)0x42*2
johnAlexander 3:316175f392f7 43 #define STMPE1600_DEF_DIGIOUT_LVL 1
johnAlexander 3:316175f392f7 44
johnAlexander 3:316175f392f7 45 /** STMPE1600 registr map **/
johnAlexander 3:316175f392f7 46 #define CHIP_ID_0_7 (uint8_t)0x00
johnAlexander 3:316175f392f7 47 #define CHIP_ID_8_15 (uint8_t)0x01
johnAlexander 3:316175f392f7 48 #define VERSION_ID (uint8_t)0x02
johnAlexander 3:316175f392f7 49 #define SYS_CTRL (uint8_t)0x03
johnAlexander 3:316175f392f7 50 #define IEGPIOR_0_7 (uint8_t)0x08
johnAlexander 3:316175f392f7 51 #define IEGPIOR_8_15 (uint8_t)0x09
johnAlexander 3:316175f392f7 52 #define ISGPIOR_0_7 (uint8_t)0x0A
johnAlexander 3:316175f392f7 53 #define ISGPIOR_8_15 (uint8_t)0x0B
johnAlexander 3:316175f392f7 54 #define GPMR_0_7 (uint8_t)0x10
johnAlexander 3:316175f392f7 55 #define GPMR_8_15 (uint8_t)0x11
johnAlexander 3:316175f392f7 56 #define GPSR_0_7 (uint8_t)0x12
johnAlexander 3:316175f392f7 57 #define GPSR_8_15 (uint8_t)0x13
johnAlexander 3:316175f392f7 58 #define GPDR_0_7 (uint8_t)0x14
johnAlexander 3:316175f392f7 59 #define GPDR_8_15 (uint8_t)0x15
johnAlexander 3:316175f392f7 60 #define GPIR_0_7 (uint8_t)0x16
johnAlexander 3:316175f392f7 61 #define GPIR_8_15 (uint8_t)0x17
johnAlexander 3:316175f392f7 62
johnAlexander 3:316175f392f7 63 #define SOFT_RESET (uint8_t)0x80
johnAlexander 3:316175f392f7 64
johnAlexander 3:316175f392f7 65 typedef enum {
johnAlexander 3:316175f392f7 66 // GPIO Expander pin names
johnAlexander 3:316175f392f7 67 GPIO_0 = 0,
johnAlexander 3:316175f392f7 68 GPIO_1,
johnAlexander 3:316175f392f7 69 GPIO_2,
johnAlexander 3:316175f392f7 70 GPIO_3,
johnAlexander 3:316175f392f7 71 GPIO_4,
johnAlexander 3:316175f392f7 72 GPIO_5,
johnAlexander 3:316175f392f7 73 GPIO_6,
johnAlexander 3:316175f392f7 74 GPIO_7,
johnAlexander 3:316175f392f7 75 GPIO_8,
johnAlexander 3:316175f392f7 76 GPIO_9,
johnAlexander 3:316175f392f7 77 GPIO_10,
johnAlexander 3:316175f392f7 78 GPIO_11,
johnAlexander 3:316175f392f7 79 GPIO_12,
johnAlexander 3:316175f392f7 80 GPIO_13,
johnAlexander 3:316175f392f7 81 GPIO_14,
johnAlexander 3:316175f392f7 82 GPIO_15,
johnAlexander 3:316175f392f7 83 NOT_CON
johnAlexander 3:316175f392f7 84 } ExpGpioPinName;
johnAlexander 3:316175f392f7 85
johnAlexander 3:316175f392f7 86 typedef enum {
johnAlexander 3:316175f392f7 87 INPUT = 0,
johnAlexander 3:316175f392f7 88 OUTPUT,
johnAlexander 3:316175f392f7 89 NOT_CONNECTED
johnAlexander 3:316175f392f7 90 } ExpGpioPinDirection;
johnAlexander 3:316175f392f7 91
johnAlexander 3:316175f392f7 92 /* Classes -------------------------------------------------------------------*/
johnAlexander 3:316175f392f7 93 /** Class representing a single stmpe1600 GPIO expander output pin
johnAlexander 3:316175f392f7 94 */
johnAlexander 3:316175f392f7 95 class Stmpe1600DigiOut
johnAlexander 3:316175f392f7 96 {
johnAlexander 3:316175f392f7 97
johnAlexander 3:316175f392f7 98 public:
johnAlexander 3:316175f392f7 99 /** Constructor
johnAlexander 3:316175f392f7 100 * @param[in] &i2c device I2C to be used for communication
johnAlexander 3:316175f392f7 101 * @param[in] outpinname the desired out pin name to be created
johnAlexander 3:316175f392f7 102 * @param[in] DevAddr the stmpe1600 I2C device address (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 3:316175f392f7 103 * @param[in] lvl the default ot pin level
johnAlexander 3:316175f392f7 104 */
johnAlexander 3:316175f392f7 105 Stmpe1600DigiOut(DevI2C *i2c, ExpGpioPinName out_pin_name, uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS,
johnAlexander 3:316175f392f7 106 bool lvl = STMPE1600_DEF_DIGIOUT_LVL) : _dev_i2c(i2c), exp_dev_addr(dev_addr), exp_pin_name(out_pin_name)
johnAlexander 3:316175f392f7 107 {
johnAlexander 3:316175f392f7 108 uint8_t data[2];
johnAlexander 3:316175f392f7 109
johnAlexander 3:316175f392f7 110 if (exp_pin_name == NOT_CON) {
johnAlexander 3:316175f392f7 111 return;
johnAlexander 3:316175f392f7 112 }
johnAlexander 3:316175f392f7 113 /* set the exp_pin_name as output */
johnAlexander 3:316175f392f7 114 _dev_i2c->i2c_read(data, exp_dev_addr, GPDR_0_7, 1);
johnAlexander 3:316175f392f7 115 _dev_i2c->i2c_read(&data[1], exp_dev_addr, GPDR_8_15, 1);
johnAlexander 3:316175f392f7 116 * (uint16_t *) data = * (uint16_t *) data | (1 << (uint16_t) exp_pin_name); // set gpio as out
johnAlexander 3:316175f392f7 117 _dev_i2c->i2c_write(data, exp_dev_addr, GPDR_0_7, 1);
johnAlexander 3:316175f392f7 118 _dev_i2c->i2c_write(&data[1], exp_dev_addr, GPDR_8_15, 1);
johnAlexander 3:316175f392f7 119 write(lvl);
johnAlexander 3:316175f392f7 120 }
johnAlexander 3:316175f392f7 121
johnAlexander 3:316175f392f7 122 /**
johnAlexander 3:316175f392f7 123 * @brief Write on the out pin
johnAlexander 3:316175f392f7 124 * @param[in] lvl level to write
johnAlexander 3:316175f392f7 125 * @return 0 on Success
johnAlexander 3:316175f392f7 126 */
johnAlexander 3:316175f392f7 127 void write(int lvl)
johnAlexander 3:316175f392f7 128 {
johnAlexander 3:316175f392f7 129 uint8_t data[2];
johnAlexander 3:316175f392f7 130
johnAlexander 3:316175f392f7 131 if (exp_pin_name == NOT_CON) {
johnAlexander 3:316175f392f7 132 return;
johnAlexander 3:316175f392f7 133 }
johnAlexander 3:316175f392f7 134 /* set the exp_pin_name state to lvl */
johnAlexander 3:316175f392f7 135 _dev_i2c->i2c_read(data, exp_dev_addr, GPSR_0_7, 2);
johnAlexander 3:316175f392f7 136 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(~(1 << (uint16_t) exp_pin_name)); // set pin mask
johnAlexander 3:316175f392f7 137 if (lvl) {
johnAlexander 3:316175f392f7 138 * (uint16_t *) data = * (uint16_t *) data | (uint16_t)(1 << (uint16_t) exp_pin_name);
johnAlexander 3:316175f392f7 139 }
johnAlexander 3:316175f392f7 140 _dev_i2c->i2c_write(data, exp_dev_addr, GPSR_0_7, 2);
johnAlexander 3:316175f392f7 141 }
johnAlexander 3:316175f392f7 142
johnAlexander 3:316175f392f7 143 /**
johnAlexander 3:316175f392f7 144 * @brief Overload assignement operator
johnAlexander 3:316175f392f7 145 */
johnAlexander 3:316175f392f7 146 Stmpe1600DigiOut &operator= (int lvl)
johnAlexander 3:316175f392f7 147 {
johnAlexander 3:316175f392f7 148 write(lvl);
johnAlexander 3:316175f392f7 149 return *this;
johnAlexander 3:316175f392f7 150 }
johnAlexander 3:316175f392f7 151
johnAlexander 3:316175f392f7 152 private:
johnAlexander 3:316175f392f7 153 DevI2C *_dev_i2c;
johnAlexander 3:316175f392f7 154 uint8_t exp_dev_addr;
johnAlexander 3:316175f392f7 155 ExpGpioPinName exp_pin_name;
johnAlexander 3:316175f392f7 156 };
johnAlexander 3:316175f392f7 157
johnAlexander 3:316175f392f7 158 /* Classes -------------------------------------------------------------------*/
johnAlexander 3:316175f392f7 159 /** Class representing a single stmpe1600 GPIO expander input pin
johnAlexander 3:316175f392f7 160 */
johnAlexander 3:316175f392f7 161 class Stmpe1600DigiIn
johnAlexander 3:316175f392f7 162 {
johnAlexander 3:316175f392f7 163 public:
johnAlexander 3:316175f392f7 164 /** Constructor
johnAlexander 3:316175f392f7 165 * @param[in] &i2c device I2C to be used for communication
johnAlexander 3:316175f392f7 166 * @param[in] inpinname the desired input pin name to be created
johnAlexander 3:316175f392f7 167 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 3:316175f392f7 168 */
johnAlexander 3:316175f392f7 169 Stmpe1600DigiIn(DevI2C *i2c, ExpGpioPinName in_pin_name,
johnAlexander 3:316175f392f7 170 uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS) : _dev_i2c(i2c), exp_dev_addr(dev_addr),
johnAlexander 3:316175f392f7 171 exp_pin_name(in_pin_name)
johnAlexander 3:316175f392f7 172 {
johnAlexander 3:316175f392f7 173 uint8_t data[2];
johnAlexander 3:316175f392f7 174
johnAlexander 3:316175f392f7 175 if (exp_pin_name == NOT_CON) {
johnAlexander 3:316175f392f7 176 return;
johnAlexander 3:316175f392f7 177 }
johnAlexander 3:316175f392f7 178 /* set the exp_pin_name as input pin direction */
johnAlexander 3:316175f392f7 179 _dev_i2c->i2c_read(data, exp_dev_addr, GPDR_0_7, 2);
johnAlexander 3:316175f392f7 180 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(~(1 << (uint16_t) exp_pin_name)); // set gpio as in
johnAlexander 3:316175f392f7 181 _dev_i2c->i2c_write(data, exp_dev_addr, GPDR_0_7, 2);
johnAlexander 3:316175f392f7 182 }
johnAlexander 3:316175f392f7 183
johnAlexander 3:316175f392f7 184 /**
johnAlexander 3:316175f392f7 185 * @brief Read the input pin
johnAlexander 3:316175f392f7 186 * @return The pin logical state 0 or 1
johnAlexander 3:316175f392f7 187 */
johnAlexander 3:316175f392f7 188 bool read()
johnAlexander 3:316175f392f7 189 {
johnAlexander 3:316175f392f7 190 uint8_t data[2];
johnAlexander 3:316175f392f7 191
johnAlexander 3:316175f392f7 192 if (exp_pin_name == NOT_CON) {
johnAlexander 3:316175f392f7 193 return false;
johnAlexander 3:316175f392f7 194 }
johnAlexander 3:316175f392f7 195 /* read the exp_pin_name */
johnAlexander 3:316175f392f7 196 _dev_i2c->i2c_read(data, exp_dev_addr, GPMR_0_7, 2);
johnAlexander 3:316175f392f7 197 * (uint16_t *) data = * (uint16_t *) data & (uint16_t)(1 << (uint16_t) exp_pin_name); // mask the in gpio
johnAlexander 3:316175f392f7 198 if (data[0] || data[1]) {
johnAlexander 3:316175f392f7 199 return true;
johnAlexander 3:316175f392f7 200 }
johnAlexander 3:316175f392f7 201 return false;
johnAlexander 3:316175f392f7 202 }
johnAlexander 3:316175f392f7 203
johnAlexander 3:316175f392f7 204 operator int()
johnAlexander 3:316175f392f7 205 {
johnAlexander 3:316175f392f7 206 return read();
johnAlexander 3:316175f392f7 207 }
johnAlexander 3:316175f392f7 208
johnAlexander 3:316175f392f7 209 private:
johnAlexander 3:316175f392f7 210 DevI2C *_dev_i2c;
johnAlexander 3:316175f392f7 211 uint8_t exp_dev_addr;
johnAlexander 3:316175f392f7 212 ExpGpioPinName exp_pin_name;
johnAlexander 3:316175f392f7 213 };
johnAlexander 3:316175f392f7 214
johnAlexander 3:316175f392f7 215 /* Classes -------------------------------------------------------------------*/
johnAlexander 3:316175f392f7 216 /** Class representing a whole stmpe1600 component (16 gpio)
johnAlexander 3:316175f392f7 217 */
johnAlexander 3:316175f392f7 218 class Stmpe1600
johnAlexander 3:316175f392f7 219 {
johnAlexander 3:316175f392f7 220
johnAlexander 3:316175f392f7 221 public:
johnAlexander 3:316175f392f7 222 /** Constructor
johnAlexander 3:316175f392f7 223 * @param[in] &i2c device I2C to be used for communication
johnAlexander 3:316175f392f7 224 * @param[in] DevAddr the stmpe1600 I2C device addres (deft STMPE1600_DEF_DEVICE_ADDRESS)
johnAlexander 3:316175f392f7 225 */
johnAlexander 3:316175f392f7 226 Stmpe1600(DevI2C *i2c, uint8_t dev_addr = STMPE1600_DEF_DEVICE_ADDRESS) : _dev_i2c(i2c)
johnAlexander 3:316175f392f7 227 {
johnAlexander 3:316175f392f7 228 exp_dev_addr = dev_addr;
johnAlexander 3:316175f392f7 229 write_sys_ctrl(SOFT_RESET);
johnAlexander 3:316175f392f7 230
johnAlexander 3:316175f392f7 231 gpdr0_15 = (uint16_t) 0; // gpio dir all IN
johnAlexander 3:316175f392f7 232 write_16bit_reg(GPDR_0_7, &gpdr0_15);
johnAlexander 3:316175f392f7 233 gpsr0_15 = (uint16_t) 0x0ffff; // gpio status all 1
johnAlexander 3:316175f392f7 234 write_16bit_reg(GPSR_0_7, &gpsr0_15);
johnAlexander 3:316175f392f7 235 }
johnAlexander 3:316175f392f7 236
johnAlexander 3:316175f392f7 237 /**
johnAlexander 3:316175f392f7 238 * @brief Write the SYS_CTRL register
johnAlexander 3:316175f392f7 239 * @param[in] Data to be written (bit fields)
johnAlexander 3:316175f392f7 240 */
johnAlexander 3:316175f392f7 241 void write_sys_ctrl(uint8_t data) // data = SOFT_RESET reset the device
johnAlexander 3:316175f392f7 242 {
johnAlexander 3:316175f392f7 243 _dev_i2c->i2c_write(&data, exp_dev_addr, SYS_CTRL, 1);
johnAlexander 3:316175f392f7 244 }
johnAlexander 3:316175f392f7 245
johnAlexander 3:316175f392f7 246 /**
johnAlexander 3:316175f392f7 247 * @brief Set the out pin
johnAlexander 3:316175f392f7 248 * @param[in] The pin name
johnAlexander 3:316175f392f7 249 * @return 0 on Success
johnAlexander 3:316175f392f7 250 */
johnAlexander 3:316175f392f7 251 bool set_gpio(ExpGpioPinName pin_name)
johnAlexander 3:316175f392f7 252 {
johnAlexander 3:316175f392f7 253 if (pin_name == NOT_CON) {
johnAlexander 3:316175f392f7 254 return true;
johnAlexander 3:316175f392f7 255 }
johnAlexander 3:316175f392f7 256 gpsr0_15 = gpsr0_15 | ((uint16_t) 0x0001 << pin_name);
johnAlexander 3:316175f392f7 257 write_16bit_reg(GPSR_0_7, &gpsr0_15);
johnAlexander 3:316175f392f7 258 return false;
johnAlexander 3:316175f392f7 259 }
johnAlexander 3:316175f392f7 260
johnAlexander 3:316175f392f7 261 /**
johnAlexander 3:316175f392f7 262 * @brief Clear the out pin
johnAlexander 3:316175f392f7 263 * @param[in] The pin name
johnAlexander 3:316175f392f7 264 * @return 0 on Success
johnAlexander 3:316175f392f7 265 */
johnAlexander 3:316175f392f7 266 bool clear_gpio(ExpGpioPinName pin_name)
johnAlexander 3:316175f392f7 267 {
johnAlexander 3:316175f392f7 268 if (pin_name == NOT_CON) {
johnAlexander 3:316175f392f7 269 return true;
johnAlexander 3:316175f392f7 270 }
johnAlexander 3:316175f392f7 271 gpsr0_15 = gpsr0_15 & (~((uint16_t) 0x0001 << pin_name));
johnAlexander 3:316175f392f7 272 write_16bit_reg(GPSR_0_7, &gpsr0_15);
johnAlexander 3:316175f392f7 273 return false;
johnAlexander 3:316175f392f7 274 }
johnAlexander 3:316175f392f7 275
johnAlexander 3:316175f392f7 276 /**
johnAlexander 3:316175f392f7 277 * @brief Read the input pin
johnAlexander 3:316175f392f7 278 * @param[in] The pin name
johnAlexander 3:316175f392f7 279 * @return The logical pin level
johnAlexander 3:316175f392f7 280 */
johnAlexander 3:316175f392f7 281 bool read_gpio(ExpGpioPinName pin_name)
johnAlexander 3:316175f392f7 282 {
johnAlexander 3:316175f392f7 283 uint16_t gpmr0_15;
johnAlexander 3:316175f392f7 284 if (pin_name == NOT_CON) {
johnAlexander 3:316175f392f7 285 return true;
johnAlexander 3:316175f392f7 286 }
johnAlexander 3:316175f392f7 287 read_16bit_reg(GPMR_0_7, &gpmr0_15);
johnAlexander 3:316175f392f7 288 gpmr0_15 = gpmr0_15 & ((uint16_t) 0x0001 << pin_name);
johnAlexander 3:316175f392f7 289 if (gpmr0_15) {
johnAlexander 3:316175f392f7 290 return true;
johnAlexander 3:316175f392f7 291 }
johnAlexander 3:316175f392f7 292 return false;
johnAlexander 3:316175f392f7 293 }
johnAlexander 3:316175f392f7 294
johnAlexander 3:316175f392f7 295 /**
johnAlexander 3:316175f392f7 296 * @brief Set the pin direction
johnAlexander 3:316175f392f7 297 * @param[in] The pin name
johnAlexander 3:316175f392f7 298 * @param[in] The pin direction
johnAlexander 3:316175f392f7 299 * @return 0 on success
johnAlexander 3:316175f392f7 300 */
johnAlexander 3:316175f392f7 301 bool set_gpio_dir(ExpGpioPinName pin_name, ExpGpioPinDirection pin_dir)
johnAlexander 3:316175f392f7 302 {
johnAlexander 3:316175f392f7 303 if (pin_name == NOT_CON || pin_dir == NOT_CONNECTED) {
johnAlexander 3:316175f392f7 304 return true;
johnAlexander 3:316175f392f7 305 }
johnAlexander 3:316175f392f7 306 gpdr0_15 = gpdr0_15 & (~((uint16_t) 0x0001 << pin_name)); // clear the Pin
johnAlexander 3:316175f392f7 307 gpdr0_15 = gpdr0_15 | ((uint16_t) pin_dir << pin_name);
johnAlexander 3:316175f392f7 308 write_16bit_reg(GPDR_0_7, &gpdr0_15);
johnAlexander 3:316175f392f7 309 return false;
johnAlexander 3:316175f392f7 310 }
johnAlexander 3:316175f392f7 311
johnAlexander 3:316175f392f7 312 /**
johnAlexander 3:316175f392f7 313 * @brief Read a 16 bits register
johnAlexander 3:316175f392f7 314 * @param[in] The register address
johnAlexander 3:316175f392f7 315 * @param[in] The pointer to the read data
johnAlexander 3:316175f392f7 316 */
johnAlexander 3:316175f392f7 317 void read_16bit_reg(uint8_t reg16_addr, uint16_t *reg16_data)
johnAlexander 3:316175f392f7 318 {
johnAlexander 3:316175f392f7 319 _dev_i2c->i2c_read((uint8_t *) reg16_data, exp_dev_addr, reg16_addr, 2);
johnAlexander 3:316175f392f7 320 }
johnAlexander 3:316175f392f7 321
johnAlexander 3:316175f392f7 322 /**
johnAlexander 3:316175f392f7 323 * @brief Write a 16 bits register
johnAlexander 3:316175f392f7 324 * @param[in] The register address
johnAlexander 3:316175f392f7 325 * @param[in] The pointer to the data to be written
johnAlexander 3:316175f392f7 326 */
johnAlexander 3:316175f392f7 327 void write_16bit_reg(uint8_t reg16_addr, uint16_t *reg16_data)
johnAlexander 3:316175f392f7 328 {
johnAlexander 3:316175f392f7 329 _dev_i2c->i2c_write((uint8_t *) reg16_data, exp_dev_addr, reg16_addr, 2);
johnAlexander 3:316175f392f7 330 }
johnAlexander 3:316175f392f7 331
johnAlexander 3:316175f392f7 332 private:
johnAlexander 3:316175f392f7 333 DevI2C *_dev_i2c;
johnAlexander 3:316175f392f7 334 uint16_t gpdr0_15; // local copy of bit direction reg
johnAlexander 3:316175f392f7 335 uint16_t gpsr0_15; // local copy of bit status reg
johnAlexander 3:316175f392f7 336 uint8_t exp_dev_addr; // expander device i2c addr
johnAlexander 3:316175f392f7 337 };
johnAlexander 3:316175f392f7 338
johnAlexander 3:316175f392f7 339 #endif // __STMPE1600_CLASS