Senior Design: Sound Monitor / BSP

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Dependencies:   CMSIS_STM32L4xx CMSIS_DSP_401 STM32L4xx_HAL_Driver

Dependents:   DiscoAudioRecord

Components/stmpe1600/stmpe1600.c@0:ad9dfc0179dc, 2015-11-02 (annotated)

Committer:
EricLew
Date:
Mon Nov 02 19:38:36 2015 +0000
Revision:
0:ad9dfc0179dc
commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
EricLew 0:ad9dfc0179dc 1 /**
EricLew 0:ad9dfc0179dc 2 ******************************************************************************
EricLew 0:ad9dfc0179dc 3 * @file stmpe1600.c
EricLew 0:ad9dfc0179dc 4 * @author MCD Application Team
EricLew 0:ad9dfc0179dc 5 * @version V1.1.0
EricLew 0:ad9dfc0179dc 6 * @date 10-February-2015
EricLew 0:ad9dfc0179dc 7 * @brief This file provides a set of functions needed to manage the STMPE1600
EricLew 0:ad9dfc0179dc 8 * IO Expander devices.
EricLew 0:ad9dfc0179dc 9 ******************************************************************************
EricLew 0:ad9dfc0179dc 10 * @attention
EricLew 0:ad9dfc0179dc 11 *
EricLew 0:ad9dfc0179dc 12 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
EricLew 0:ad9dfc0179dc 13 *
EricLew 0:ad9dfc0179dc 14 * Redistribution and use in source and binary forms, with or without modification,
EricLew 0:ad9dfc0179dc 15 * are permitted provided that the following conditions are met:
EricLew 0:ad9dfc0179dc 16 * 1. Redistributions of source code must retain the above copyright notice,
EricLew 0:ad9dfc0179dc 17 * this list of conditions and the following disclaimer.
EricLew 0:ad9dfc0179dc 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
EricLew 0:ad9dfc0179dc 19 * this list of conditions and the following disclaimer in the documentation
EricLew 0:ad9dfc0179dc 20 * and/or other materials provided with the distribution.
EricLew 0:ad9dfc0179dc 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
EricLew 0:ad9dfc0179dc 22 * may be used to endorse or promote products derived from this software
EricLew 0:ad9dfc0179dc 23 * without specific prior written permission.
EricLew 0:ad9dfc0179dc 24 *
EricLew 0:ad9dfc0179dc 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
EricLew 0:ad9dfc0179dc 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
EricLew 0:ad9dfc0179dc 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
EricLew 0:ad9dfc0179dc 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
EricLew 0:ad9dfc0179dc 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
EricLew 0:ad9dfc0179dc 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
EricLew 0:ad9dfc0179dc 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
EricLew 0:ad9dfc0179dc 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
EricLew 0:ad9dfc0179dc 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
EricLew 0:ad9dfc0179dc 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
EricLew 0:ad9dfc0179dc 35 *
EricLew 0:ad9dfc0179dc 36 ******************************************************************************
EricLew 0:ad9dfc0179dc 37 */
EricLew 0:ad9dfc0179dc 38
EricLew 0:ad9dfc0179dc 39 /* Includes ------------------------------------------------------------------*/
EricLew 0:ad9dfc0179dc 40 #include "stmpe1600.h"
EricLew 0:ad9dfc0179dc 41
EricLew 0:ad9dfc0179dc 42 /** @addtogroup BSP
EricLew 0:ad9dfc0179dc 43 * @{
EricLew 0:ad9dfc0179dc 44 */
EricLew 0:ad9dfc0179dc 45
EricLew 0:ad9dfc0179dc 46 /** @addtogroup Components
EricLew 0:ad9dfc0179dc 47 * @{
EricLew 0:ad9dfc0179dc 48 */
EricLew 0:ad9dfc0179dc 49
EricLew 0:ad9dfc0179dc 50 /** @defgroup STMPE1600
EricLew 0:ad9dfc0179dc 51 * @{
EricLew 0:ad9dfc0179dc 52 */
EricLew 0:ad9dfc0179dc 53
EricLew 0:ad9dfc0179dc 54 /* Private typedef -----------------------------------------------------------*/
EricLew 0:ad9dfc0179dc 55
EricLew 0:ad9dfc0179dc 56 /** @defgroup STMPE1600_Private_Types_Definitions
EricLew 0:ad9dfc0179dc 57 * @{
EricLew 0:ad9dfc0179dc 58 */
EricLew 0:ad9dfc0179dc 59
EricLew 0:ad9dfc0179dc 60 /* Private define ------------------------------------------------------------*/
EricLew 0:ad9dfc0179dc 61
EricLew 0:ad9dfc0179dc 62 /** @defgroup STMPE1600_Private_Defines
EricLew 0:ad9dfc0179dc 63 * @{
EricLew 0:ad9dfc0179dc 64 */
EricLew 0:ad9dfc0179dc 65 #define STMPE1600_MAX_INSTANCE 2
EricLew 0:ad9dfc0179dc 66
EricLew 0:ad9dfc0179dc 67 /* Private macro -------------------------------------------------------------*/
EricLew 0:ad9dfc0179dc 68
EricLew 0:ad9dfc0179dc 69 /** @defgroup STMPE1600_Private_Macros
EricLew 0:ad9dfc0179dc 70 * @{
EricLew 0:ad9dfc0179dc 71 */
EricLew 0:ad9dfc0179dc 72
EricLew 0:ad9dfc0179dc 73 /* Private variables ---------------------------------------------------------*/
EricLew 0:ad9dfc0179dc 74 static uint16_t tmp = 0;
EricLew 0:ad9dfc0179dc 75
EricLew 0:ad9dfc0179dc 76 /** @defgroup STMPE1600_Private_Variables
EricLew 0:ad9dfc0179dc 77 * @{
EricLew 0:ad9dfc0179dc 78 */
EricLew 0:ad9dfc0179dc 79 /* IO driver structure initialization */
EricLew 0:ad9dfc0179dc 80 IO_DrvTypeDef stmpe1600_io_drv =
EricLew 0:ad9dfc0179dc 81 {
EricLew 0:ad9dfc0179dc 82 stmpe1600_Init,
EricLew 0:ad9dfc0179dc 83 stmpe1600_ReadID,
EricLew 0:ad9dfc0179dc 84 stmpe1600_Reset,
EricLew 0:ad9dfc0179dc 85 stmpe1600_Start,
EricLew 0:ad9dfc0179dc 86 stmpe1600_IO_Config,
EricLew 0:ad9dfc0179dc 87 stmpe1600_IO_WritePin,
EricLew 0:ad9dfc0179dc 88 stmpe1600_IO_ReadPin,
EricLew 0:ad9dfc0179dc 89 0,
EricLew 0:ad9dfc0179dc 90 0,
EricLew 0:ad9dfc0179dc 91 stmpe1600_IO_ITStatus,
EricLew 0:ad9dfc0179dc 92 stmpe1600_IO_ClearIT,
EricLew 0:ad9dfc0179dc 93 };
EricLew 0:ad9dfc0179dc 94
EricLew 0:ad9dfc0179dc 95 uint8_t stmpe1600[STMPE1600_MAX_INSTANCE] = {0};
EricLew 0:ad9dfc0179dc 96 /**
EricLew 0:ad9dfc0179dc 97 * @}
EricLew 0:ad9dfc0179dc 98 */
EricLew 0:ad9dfc0179dc 99
EricLew 0:ad9dfc0179dc 100 /* Private function prototypes -----------------------------------------------*/
EricLew 0:ad9dfc0179dc 101
EricLew 0:ad9dfc0179dc 102 /** @defgroup STMPE1600_Private_Function_Prototypes
EricLew 0:ad9dfc0179dc 103 * @{
EricLew 0:ad9dfc0179dc 104 */
EricLew 0:ad9dfc0179dc 105 static uint8_t stmpe1600_GetInstance(uint16_t DeviceAddr);
EricLew 0:ad9dfc0179dc 106
EricLew 0:ad9dfc0179dc 107 /* Private functions ---------------------------------------------------------*/
EricLew 0:ad9dfc0179dc 108
EricLew 0:ad9dfc0179dc 109 /** @defgroup STMPE1600_Private_Functions
EricLew 0:ad9dfc0179dc 110 * @{
EricLew 0:ad9dfc0179dc 111 */
EricLew 0:ad9dfc0179dc 112
EricLew 0:ad9dfc0179dc 113 /**
EricLew 0:ad9dfc0179dc 114 * @brief Initialize the stmpe1600 and configure the needed hardware resources
EricLew 0:ad9dfc0179dc 115 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 116 * @retval None
EricLew 0:ad9dfc0179dc 117 */
EricLew 0:ad9dfc0179dc 118 void stmpe1600_Init(uint16_t DeviceAddr)
EricLew 0:ad9dfc0179dc 119 {
EricLew 0:ad9dfc0179dc 120 uint8_t instance;
EricLew 0:ad9dfc0179dc 121 uint8_t empty;
EricLew 0:ad9dfc0179dc 122
EricLew 0:ad9dfc0179dc 123 /* Check if device instance already exists */
EricLew 0:ad9dfc0179dc 124 instance = stmpe1600_GetInstance(DeviceAddr);
EricLew 0:ad9dfc0179dc 125
EricLew 0:ad9dfc0179dc 126 if(instance == 0xFF)
EricLew 0:ad9dfc0179dc 127 {
EricLew 0:ad9dfc0179dc 128 /* Look for empty instance */
EricLew 0:ad9dfc0179dc 129 empty = stmpe1600_GetInstance(0);
EricLew 0:ad9dfc0179dc 130
EricLew 0:ad9dfc0179dc 131 if(empty < STMPE1600_MAX_INSTANCE)
EricLew 0:ad9dfc0179dc 132 {
EricLew 0:ad9dfc0179dc 133 /* Register the current device instance */
EricLew 0:ad9dfc0179dc 134 stmpe1600[empty] = DeviceAddr;
EricLew 0:ad9dfc0179dc 135
EricLew 0:ad9dfc0179dc 136 /* Initialize IO BUS layer */
EricLew 0:ad9dfc0179dc 137 IOE_Init();
EricLew 0:ad9dfc0179dc 138
EricLew 0:ad9dfc0179dc 139 /* Generate stmpe1600 Software reset */
EricLew 0:ad9dfc0179dc 140 stmpe1600_Reset(DeviceAddr);
EricLew 0:ad9dfc0179dc 141 }
EricLew 0:ad9dfc0179dc 142 }
EricLew 0:ad9dfc0179dc 143 }
EricLew 0:ad9dfc0179dc 144
EricLew 0:ad9dfc0179dc 145 /**
EricLew 0:ad9dfc0179dc 146 * @brief Configures the touch Screen Controller (Single point detection)
EricLew 0:ad9dfc0179dc 147 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 148 * @retval None.
EricLew 0:ad9dfc0179dc 149 */
EricLew 0:ad9dfc0179dc 150 void stmpe1600_Start(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 151 {
EricLew 0:ad9dfc0179dc 152 /*Configuration already done during the initialization */
EricLew 0:ad9dfc0179dc 153 }
EricLew 0:ad9dfc0179dc 154
EricLew 0:ad9dfc0179dc 155 /**
EricLew 0:ad9dfc0179dc 156 * @brief Reset the stmpe1600 by Software.
EricLew 0:ad9dfc0179dc 157 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 158 * @retval None
EricLew 0:ad9dfc0179dc 159 */
EricLew 0:ad9dfc0179dc 160 void stmpe1600_Reset(uint16_t DeviceAddr)
EricLew 0:ad9dfc0179dc 161 {
EricLew 0:ad9dfc0179dc 162 /* Power Down the stmpe1600 */
EricLew 0:ad9dfc0179dc 163 IOE_Write(DeviceAddr, STMPE1600_REG_SYS_CTRL, (uint16_t)0x80);
EricLew 0:ad9dfc0179dc 164
EricLew 0:ad9dfc0179dc 165 /* Wait for a delay to ensure registers erasing */
EricLew 0:ad9dfc0179dc 166 IOE_Delay(2);
EricLew 0:ad9dfc0179dc 167
EricLew 0:ad9dfc0179dc 168 /* Power On the Codec after the power off: all registers are reinitialized */
EricLew 0:ad9dfc0179dc 169 IOE_Write(DeviceAddr, STMPE1600_REG_SYS_CTRL, (uint16_t)0x00);
EricLew 0:ad9dfc0179dc 170
EricLew 0:ad9dfc0179dc 171 /* Wait for a delay to ensure registers erasing */
EricLew 0:ad9dfc0179dc 172 IOE_Delay(2);
EricLew 0:ad9dfc0179dc 173 }
EricLew 0:ad9dfc0179dc 174
EricLew 0:ad9dfc0179dc 175 /**
EricLew 0:ad9dfc0179dc 176 * @brief Read the stmpe1600 device ID.
EricLew 0:ad9dfc0179dc 177 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 178 * @retval The Device ID (two bytes).
EricLew 0:ad9dfc0179dc 179 */
EricLew 0:ad9dfc0179dc 180 uint16_t stmpe1600_ReadID(uint16_t DeviceAddr)
EricLew 0:ad9dfc0179dc 181 {
EricLew 0:ad9dfc0179dc 182 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 183
EricLew 0:ad9dfc0179dc 184 /* Initialize IO BUS layer */
EricLew 0:ad9dfc0179dc 185 IOE_Init();
EricLew 0:ad9dfc0179dc 186
EricLew 0:ad9dfc0179dc 187 /* Read the stmpe1600 device ID */
EricLew 0:ad9dfc0179dc 188 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_CHP_ID, tmpData, 2);
EricLew 0:ad9dfc0179dc 189
EricLew 0:ad9dfc0179dc 190 /* Return the device ID value */
EricLew 0:ad9dfc0179dc 191 return((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 192 }
EricLew 0:ad9dfc0179dc 193
EricLew 0:ad9dfc0179dc 194 /**
EricLew 0:ad9dfc0179dc 195 * @brief Set the global interrupt Polarity.
EricLew 0:ad9dfc0179dc 196 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 197 * @param Polarity: could be one of these values;
EricLew 0:ad9dfc0179dc 198 * @arg STMPE1600_POLARITY_LOW: Interrupt line is active Low/Falling edge
EricLew 0:ad9dfc0179dc 199 * @arg STMPE1600_POLARITY_HIGH: Interrupt line is active High/Rising edge
EricLew 0:ad9dfc0179dc 200 * @retval None
EricLew 0:ad9dfc0179dc 201 */
EricLew 0:ad9dfc0179dc 202 void stmpe1600_SetITPolarity(uint16_t DeviceAddr, uint8_t Polarity)
EricLew 0:ad9dfc0179dc 203 {
EricLew 0:ad9dfc0179dc 204 uint8_t tmp = 0;
EricLew 0:ad9dfc0179dc 205
EricLew 0:ad9dfc0179dc 206 /* Get the current register value */
EricLew 0:ad9dfc0179dc 207 tmp = IOE_Read(DeviceAddr, STMPE1600_REG_SYS_CTRL);
EricLew 0:ad9dfc0179dc 208
EricLew 0:ad9dfc0179dc 209 /* Mask the polarity bit */
EricLew 0:ad9dfc0179dc 210 tmp &= ~(uint16_t)0x01;
EricLew 0:ad9dfc0179dc 211
EricLew 0:ad9dfc0179dc 212 /* Set the Interrupt Output line polarity */
EricLew 0:ad9dfc0179dc 213 tmp |= (uint8_t)Polarity;
EricLew 0:ad9dfc0179dc 214
EricLew 0:ad9dfc0179dc 215 /* Set the new register value */
EricLew 0:ad9dfc0179dc 216 IOE_Write(DeviceAddr, STMPE1600_REG_SYS_CTRL, tmp);
EricLew 0:ad9dfc0179dc 217 }
EricLew 0:ad9dfc0179dc 218
EricLew 0:ad9dfc0179dc 219 /**
EricLew 0:ad9dfc0179dc 220 * @brief Enable the Global interrupt.
EricLew 0:ad9dfc0179dc 221 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 222 * @retval None
EricLew 0:ad9dfc0179dc 223 */
EricLew 0:ad9dfc0179dc 224 void stmpe1600_EnableGlobalIT(uint16_t DeviceAddr)
EricLew 0:ad9dfc0179dc 225 {
EricLew 0:ad9dfc0179dc 226 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 227
EricLew 0:ad9dfc0179dc 228 /* Configure NVIC IT for IOE */
EricLew 0:ad9dfc0179dc 229 IOE_ITConfig();
EricLew 0:ad9dfc0179dc 230
EricLew 0:ad9dfc0179dc 231 /* Get the current register value */
EricLew 0:ad9dfc0179dc 232 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_SYS_CTRL, tmpData, 2);
EricLew 0:ad9dfc0179dc 233
EricLew 0:ad9dfc0179dc 234 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 235
EricLew 0:ad9dfc0179dc 236 /* Set the global interrupts to be Enabled */
EricLew 0:ad9dfc0179dc 237 tmp |= (uint16_t)STMPE1600_IT_ENABLE;
EricLew 0:ad9dfc0179dc 238
EricLew 0:ad9dfc0179dc 239 /* Write Back the Interrupt Control register */
EricLew 0:ad9dfc0179dc 240 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_SYS_CTRL, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 241 }
EricLew 0:ad9dfc0179dc 242
EricLew 0:ad9dfc0179dc 243 /**
EricLew 0:ad9dfc0179dc 244 * @brief Disable the Global interrupt.
EricLew 0:ad9dfc0179dc 245 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 246 * @retval None
EricLew 0:ad9dfc0179dc 247 */
EricLew 0:ad9dfc0179dc 248 void stmpe1600_DisableGlobalIT(uint16_t DeviceAddr)
EricLew 0:ad9dfc0179dc 249 {
EricLew 0:ad9dfc0179dc 250 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 251
EricLew 0:ad9dfc0179dc 252 /* Get the current register value */
EricLew 0:ad9dfc0179dc 253 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_SYS_CTRL, tmpData, 2);
EricLew 0:ad9dfc0179dc 254
EricLew 0:ad9dfc0179dc 255 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 256
EricLew 0:ad9dfc0179dc 257 /* Set the global interrupts to be Enabled */
EricLew 0:ad9dfc0179dc 258 tmp &= ~(uint16_t)STMPE1600_IT_ENABLE;
EricLew 0:ad9dfc0179dc 259
EricLew 0:ad9dfc0179dc 260 /* Write Back the Interrupt Control register */
EricLew 0:ad9dfc0179dc 261 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_SYS_CTRL, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 262 }
EricLew 0:ad9dfc0179dc 263
EricLew 0:ad9dfc0179dc 264 /**
EricLew 0:ad9dfc0179dc 265 * @brief Initialize the selected pin(s) direction.
EricLew 0:ad9dfc0179dc 266 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 267 * @param IO_Pin: IO pin(s) to be configured.
EricLew 0:ad9dfc0179dc 268 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 269 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 270 * @param Direction: could be STMPE1600_DIRECTION_IN or STMPE1600_DIRECTION_OUT.
EricLew 0:ad9dfc0179dc 271 * @retval None
EricLew 0:ad9dfc0179dc 272 */
EricLew 0:ad9dfc0179dc 273 void stmpe1600_IO_InitPin(uint16_t DeviceAddr, uint32_t IO_Pin, uint8_t Direction)
EricLew 0:ad9dfc0179dc 274 {
EricLew 0:ad9dfc0179dc 275 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 276
EricLew 0:ad9dfc0179dc 277 /* Get the current register value */
EricLew 0:ad9dfc0179dc 278 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPDR, tmpData, 2);
EricLew 0:ad9dfc0179dc 279
EricLew 0:ad9dfc0179dc 280 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 281
EricLew 0:ad9dfc0179dc 282 /* Set the Pin direction */
EricLew 0:ad9dfc0179dc 283 if (Direction != STMPE1600_DIRECTION_IN)
EricLew 0:ad9dfc0179dc 284 {
EricLew 0:ad9dfc0179dc 285 tmp |= (uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 286 }
EricLew 0:ad9dfc0179dc 287 else
EricLew 0:ad9dfc0179dc 288 {
EricLew 0:ad9dfc0179dc 289 tmp &= ~(uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 290 }
EricLew 0:ad9dfc0179dc 291
EricLew 0:ad9dfc0179dc 292 /* Set the new register value */
EricLew 0:ad9dfc0179dc 293 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_GPDR, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 294 }
EricLew 0:ad9dfc0179dc 295
EricLew 0:ad9dfc0179dc 296 /**
EricLew 0:ad9dfc0179dc 297 * @brief Configure the IO pin(s) according to IO mode structure value.
EricLew 0:ad9dfc0179dc 298 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 299 * @param IO_Pin: The output pin to be set or reset. This parameter can be one
EricLew 0:ad9dfc0179dc 300 * of the following values:
EricLew 0:ad9dfc0179dc 301 * @arg STMPE1600_PIN_x: where x can be from 0 to 7.
EricLew 0:ad9dfc0179dc 302 * @param IO_Mode: The IO pin mode to configure, could be one of the following values:
EricLew 0:ad9dfc0179dc 303 * @arg IO_MODE_INPUT
EricLew 0:ad9dfc0179dc 304 * @arg IO_MODE_OUTPUT
EricLew 0:ad9dfc0179dc 305 * @arg IO_MODE_IT_RISING_EDGE
EricLew 0:ad9dfc0179dc 306 * @arg IO_MODE_IT_FALLING_EDGE
EricLew 0:ad9dfc0179dc 307 * @retval 0 if no error, IO_Mode if error
EricLew 0:ad9dfc0179dc 308 */
EricLew 0:ad9dfc0179dc 309 uint8_t stmpe1600_IO_Config(uint16_t DeviceAddr, uint32_t IO_Pin, IO_ModeTypedef IO_Mode)
EricLew 0:ad9dfc0179dc 310 {
EricLew 0:ad9dfc0179dc 311 uint8_t error_code = 0;
EricLew 0:ad9dfc0179dc 312 uint8_t buffer[2] = {0,0};
EricLew 0:ad9dfc0179dc 313
EricLew 0:ad9dfc0179dc 314 /* Configure IO pin according to selected IO mode */
EricLew 0:ad9dfc0179dc 315 switch(IO_Mode)
EricLew 0:ad9dfc0179dc 316 {
EricLew 0:ad9dfc0179dc 317 case IO_MODE_INPUT: /* Input mode */
EricLew 0:ad9dfc0179dc 318 stmpe1600_IO_DisablePinIT(DeviceAddr, IO_Pin);
EricLew 0:ad9dfc0179dc 319 stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_IN);
EricLew 0:ad9dfc0179dc 320 break;
EricLew 0:ad9dfc0179dc 321
EricLew 0:ad9dfc0179dc 322 case IO_MODE_OUTPUT: /* Output mode */
EricLew 0:ad9dfc0179dc 323 stmpe1600_IO_DisablePinIT(DeviceAddr, IO_Pin);
EricLew 0:ad9dfc0179dc 324 stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_OUT);
EricLew 0:ad9dfc0179dc 325 break;
EricLew 0:ad9dfc0179dc 326
EricLew 0:ad9dfc0179dc 327 case IO_MODE_IT_RISING_EDGE: /* Interrupt rising edge mode */
EricLew 0:ad9dfc0179dc 328 stmpe1600_SetITPolarity(DeviceAddr, STMPE1600_POLARITY_HIGH);
EricLew 0:ad9dfc0179dc 329 stmpe1600_IO_EnablePinIT(DeviceAddr, IO_Pin);
EricLew 0:ad9dfc0179dc 330 stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_IN);
EricLew 0:ad9dfc0179dc 331 /* Clear all IO IT pending bits if any */
EricLew 0:ad9dfc0179dc 332 stmpe1600_IO_ClearIT(DeviceAddr, IO_Pin);
EricLew 0:ad9dfc0179dc 333
EricLew 0:ad9dfc0179dc 334 /* Read GMPR to enable interrupt */
EricLew 0:ad9dfc0179dc 335 IOE_ReadMultiple(DeviceAddr , STMPE1600_REG_GPMR, buffer, 2);
EricLew 0:ad9dfc0179dc 336 break;
EricLew 0:ad9dfc0179dc 337
EricLew 0:ad9dfc0179dc 338 case IO_MODE_IT_FALLING_EDGE: /* Interrupt falling edge mode */
EricLew 0:ad9dfc0179dc 339 stmpe1600_SetITPolarity(DeviceAddr, STMPE1600_POLARITY_LOW);
EricLew 0:ad9dfc0179dc 340 stmpe1600_IO_EnablePinIT(DeviceAddr, IO_Pin);
EricLew 0:ad9dfc0179dc 341 stmpe1600_IO_InitPin(DeviceAddr, IO_Pin, STMPE1600_DIRECTION_IN);
EricLew 0:ad9dfc0179dc 342
EricLew 0:ad9dfc0179dc 343 /* Clear all IO IT pending bits if any */
EricLew 0:ad9dfc0179dc 344 stmpe1600_IO_ClearIT(DeviceAddr, IO_Pin);
EricLew 0:ad9dfc0179dc 345
EricLew 0:ad9dfc0179dc 346 /* Read GMPR to enable interrupt */
EricLew 0:ad9dfc0179dc 347 IOE_ReadMultiple(DeviceAddr , STMPE1600_REG_GPMR, buffer, 2);
EricLew 0:ad9dfc0179dc 348 break;
EricLew 0:ad9dfc0179dc 349
EricLew 0:ad9dfc0179dc 350 default:
EricLew 0:ad9dfc0179dc 351 error_code = (uint8_t) IO_Mode;
EricLew 0:ad9dfc0179dc 352 break;
EricLew 0:ad9dfc0179dc 353 }
EricLew 0:ad9dfc0179dc 354 return error_code;
EricLew 0:ad9dfc0179dc 355 }
EricLew 0:ad9dfc0179dc 356
EricLew 0:ad9dfc0179dc 357 /**
EricLew 0:ad9dfc0179dc 358 * @brief Enable polarity inversion of the selected IO pin(s).
EricLew 0:ad9dfc0179dc 359 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 360 * @param IO_Pin: IO pin(s) to be configured.
EricLew 0:ad9dfc0179dc 361 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 362 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 363 * @retval None
EricLew 0:ad9dfc0179dc 364 */
EricLew 0:ad9dfc0179dc 365 void stmpe1600_IO_PolarityInv_Enable(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 366 {
EricLew 0:ad9dfc0179dc 367 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 368
EricLew 0:ad9dfc0179dc 369 /* Get the current register value */
EricLew 0:ad9dfc0179dc 370 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPPIR, tmpData, 2);
EricLew 0:ad9dfc0179dc 371
EricLew 0:ad9dfc0179dc 372 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 373
EricLew 0:ad9dfc0179dc 374 /* Enable pin polarity inversion */
EricLew 0:ad9dfc0179dc 375 tmp |= (uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 376
EricLew 0:ad9dfc0179dc 377 /* Set the new register value */
EricLew 0:ad9dfc0179dc 378 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_GPPIR, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 379 }
EricLew 0:ad9dfc0179dc 380
EricLew 0:ad9dfc0179dc 381 /**
EricLew 0:ad9dfc0179dc 382 * @brief Disable polarity inversion of the selected IO pins.
EricLew 0:ad9dfc0179dc 383 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 384 * @param IO_Pin: IO pin(s) to be configured.
EricLew 0:ad9dfc0179dc 385 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 386 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 387 * @retval None
EricLew 0:ad9dfc0179dc 388 */
EricLew 0:ad9dfc0179dc 389 void stmpe1600_IO_PolarityInv_Disable(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 390 {
EricLew 0:ad9dfc0179dc 391 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 392
EricLew 0:ad9dfc0179dc 393 /* Get the current register value */
EricLew 0:ad9dfc0179dc 394 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPPIR, tmpData, 2);
EricLew 0:ad9dfc0179dc 395
EricLew 0:ad9dfc0179dc 396 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 397
EricLew 0:ad9dfc0179dc 398 /* Disable pin polarity inversion */
EricLew 0:ad9dfc0179dc 399 tmp &= ~ (uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 400
EricLew 0:ad9dfc0179dc 401 /* Set the new register value */
EricLew 0:ad9dfc0179dc 402 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_GPPIR, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 403 }
EricLew 0:ad9dfc0179dc 404
EricLew 0:ad9dfc0179dc 405 /**
EricLew 0:ad9dfc0179dc 406 * @brief Set the value of the selected IO pins.
EricLew 0:ad9dfc0179dc 407 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 408 * @param IO_Pin: IO pin(s) to be set.
EricLew 0:ad9dfc0179dc 409 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 410 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 411 * @param PinState: The value to be set.
EricLew 0:ad9dfc0179dc 412 * @retval None
EricLew 0:ad9dfc0179dc 413 */
EricLew 0:ad9dfc0179dc 414 void stmpe1600_IO_WritePin(uint16_t DeviceAddr, uint32_t IO_Pin, uint8_t PinState)
EricLew 0:ad9dfc0179dc 415 {
EricLew 0:ad9dfc0179dc 416 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 417
EricLew 0:ad9dfc0179dc 418 /* Get the current register value */
EricLew 0:ad9dfc0179dc 419 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPMR, tmpData, 2);
EricLew 0:ad9dfc0179dc 420
EricLew 0:ad9dfc0179dc 421 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 422
EricLew 0:ad9dfc0179dc 423 /* Set the pin state */
EricLew 0:ad9dfc0179dc 424 if(PinState != 0)
EricLew 0:ad9dfc0179dc 425 {
EricLew 0:ad9dfc0179dc 426 tmp |= (uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 427 }
EricLew 0:ad9dfc0179dc 428 else
EricLew 0:ad9dfc0179dc 429 {
EricLew 0:ad9dfc0179dc 430 tmp &= ~(uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 431 }
EricLew 0:ad9dfc0179dc 432
EricLew 0:ad9dfc0179dc 433 /* Set the new register value */
EricLew 0:ad9dfc0179dc 434 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_GPSR, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 435 }
EricLew 0:ad9dfc0179dc 436
EricLew 0:ad9dfc0179dc 437 /**
EricLew 0:ad9dfc0179dc 438 * @brief Read the state of the selected IO pin(s).
EricLew 0:ad9dfc0179dc 439 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 440 * @param IO_Pin: IO pin(s) to be read.
EricLew 0:ad9dfc0179dc 441 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 442 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 443 * @retval State of the selected IO pin(s).
EricLew 0:ad9dfc0179dc 444 */
EricLew 0:ad9dfc0179dc 445 uint32_t stmpe1600_IO_ReadPin(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 446 {
EricLew 0:ad9dfc0179dc 447 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 448
EricLew 0:ad9dfc0179dc 449 /* Get the register value */
EricLew 0:ad9dfc0179dc 450 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_GPMR, tmpData, 2);
EricLew 0:ad9dfc0179dc 451
EricLew 0:ad9dfc0179dc 452 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 453
EricLew 0:ad9dfc0179dc 454 /* Return the pin(s) state */
EricLew 0:ad9dfc0179dc 455 return(tmp & IO_Pin);
EricLew 0:ad9dfc0179dc 456 }
EricLew 0:ad9dfc0179dc 457
EricLew 0:ad9dfc0179dc 458 /**
EricLew 0:ad9dfc0179dc 459 * @brief Enable the interrupt mode for the selected IO pin(s).
EricLew 0:ad9dfc0179dc 460 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 461 * @param IO_Pin: IO pin(s) to be configured.
EricLew 0:ad9dfc0179dc 462 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 463 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 464 * @retval None
EricLew 0:ad9dfc0179dc 465 */
EricLew 0:ad9dfc0179dc 466 void stmpe1600_IO_EnablePinIT(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 467 {
EricLew 0:ad9dfc0179dc 468 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 469
EricLew 0:ad9dfc0179dc 470 /* Enable global interrupt */
EricLew 0:ad9dfc0179dc 471 stmpe1600_EnableGlobalIT(DeviceAddr);
EricLew 0:ad9dfc0179dc 472
EricLew 0:ad9dfc0179dc 473 /* Get the current register value */
EricLew 0:ad9dfc0179dc 474 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, tmpData, 2);
EricLew 0:ad9dfc0179dc 475
EricLew 0:ad9dfc0179dc 476 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 477
EricLew 0:ad9dfc0179dc 478 /* Put pin in IT mode */
EricLew 0:ad9dfc0179dc 479 tmp |= (uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 480
EricLew 0:ad9dfc0179dc 481 /* Write the new register value */
EricLew 0:ad9dfc0179dc 482 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 483 }
EricLew 0:ad9dfc0179dc 484
EricLew 0:ad9dfc0179dc 485 /**
EricLew 0:ad9dfc0179dc 486 * @brief Disable the interrupt mode for the selected IO pin(s).
EricLew 0:ad9dfc0179dc 487 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 488 * @param IO_Pin: IO pin(s) to be configured.
EricLew 0:ad9dfc0179dc 489 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 490 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 491 * @retval None
EricLew 0:ad9dfc0179dc 492 */
EricLew 0:ad9dfc0179dc 493 void stmpe1600_IO_DisablePinIT(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 494 {
EricLew 0:ad9dfc0179dc 495 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 496
EricLew 0:ad9dfc0179dc 497 /* Get the current register value */
EricLew 0:ad9dfc0179dc 498 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, tmpData, 2);
EricLew 0:ad9dfc0179dc 499
EricLew 0:ad9dfc0179dc 500 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 501
EricLew 0:ad9dfc0179dc 502 /* Disable the IT pin mode */
EricLew 0:ad9dfc0179dc 503 tmp &= ~(uint16_t)IO_Pin;
EricLew 0:ad9dfc0179dc 504
EricLew 0:ad9dfc0179dc 505 /* Set the new register value */
EricLew 0:ad9dfc0179dc 506 IOE_WriteMultiple(DeviceAddr, STMPE1600_REG_IEGPIOR, (uint8_t *)&tmp, 2);
EricLew 0:ad9dfc0179dc 507 }
EricLew 0:ad9dfc0179dc 508
EricLew 0:ad9dfc0179dc 509 /**
EricLew 0:ad9dfc0179dc 510 * @brief Read the IT status of the selected IO pin(s)
EricLew 0:ad9dfc0179dc 511 * (clears all the pending bits if any).
EricLew 0:ad9dfc0179dc 512 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 513 * @param IO_Pin: IO pin(s) to be checked.
EricLew 0:ad9dfc0179dc 514 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 515 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 516 * @retval IT Status of the selected IO pin(s).
EricLew 0:ad9dfc0179dc 517 */
EricLew 0:ad9dfc0179dc 518 uint32_t stmpe1600_IO_ITStatus(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 519 {
EricLew 0:ad9dfc0179dc 520 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 521
EricLew 0:ad9dfc0179dc 522 /* Get the register value */
EricLew 0:ad9dfc0179dc 523 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_ISGPIOR, tmpData, 2);
EricLew 0:ad9dfc0179dc 524
EricLew 0:ad9dfc0179dc 525 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 526
EricLew 0:ad9dfc0179dc 527 /* Return the pin IT status */
EricLew 0:ad9dfc0179dc 528 return((tmp & IO_Pin) == IO_Pin);
EricLew 0:ad9dfc0179dc 529 }
EricLew 0:ad9dfc0179dc 530
EricLew 0:ad9dfc0179dc 531 /**
EricLew 0:ad9dfc0179dc 532 * @brief Detect an IT pending bit from the selected IO pin(s).
EricLew 0:ad9dfc0179dc 533 * (clears all the pending bits if any).
EricLew 0:ad9dfc0179dc 534 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 535 * @param IO_Pin: IO pin(s) to be checked.
EricLew 0:ad9dfc0179dc 536 * This parameter could be any combination of the following values:
EricLew 0:ad9dfc0179dc 537 * @arg STMPE1600_PIN_x: where x can be from 0 to 15.
EricLew 0:ad9dfc0179dc 538 * @retval IT pending bit detection status.
EricLew 0:ad9dfc0179dc 539 */
EricLew 0:ad9dfc0179dc 540 uint8_t stmpe1600_IO_ReadIT(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 541 {
EricLew 0:ad9dfc0179dc 542 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 543
EricLew 0:ad9dfc0179dc 544 /* Get the register value */
EricLew 0:ad9dfc0179dc 545 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_ISGPIOR, tmpData, 2);
EricLew 0:ad9dfc0179dc 546
EricLew 0:ad9dfc0179dc 547 tmp = ((uint16_t)tmpData[0] | (((uint16_t)tmpData[1]) << 8));
EricLew 0:ad9dfc0179dc 548
EricLew 0:ad9dfc0179dc 549 /* Return if there is an IT pending bit or not */
EricLew 0:ad9dfc0179dc 550 return(tmp & IO_Pin);
EricLew 0:ad9dfc0179dc 551 }
EricLew 0:ad9dfc0179dc 552
EricLew 0:ad9dfc0179dc 553 /**
EricLew 0:ad9dfc0179dc 554 * @brief Clear all the IT pending bits if any.
EricLew 0:ad9dfc0179dc 555 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 556 * @retval None
EricLew 0:ad9dfc0179dc 557 */
EricLew 0:ad9dfc0179dc 558 void stmpe1600_IO_ClearIT(uint16_t DeviceAddr, uint32_t IO_Pin)
EricLew 0:ad9dfc0179dc 559 {
EricLew 0:ad9dfc0179dc 560 uint8_t tmpData[2] = {0 , 0};
EricLew 0:ad9dfc0179dc 561
EricLew 0:ad9dfc0179dc 562 /* Get the register value to clear all pending bits */
EricLew 0:ad9dfc0179dc 563 IOE_ReadMultiple(DeviceAddr, STMPE1600_REG_ISGPIOR, tmpData, 2);
EricLew 0:ad9dfc0179dc 564 }
EricLew 0:ad9dfc0179dc 565
EricLew 0:ad9dfc0179dc 566 /**
EricLew 0:ad9dfc0179dc 567 * @brief Check if the device instance of the selected address is already registered
EricLew 0:ad9dfc0179dc 568 * and return its index
EricLew 0:ad9dfc0179dc 569 * @param DeviceAddr: Device address on communication Bus.
EricLew 0:ad9dfc0179dc 570 * @retval Index of the device instance if registered, 0xFF if not.
EricLew 0:ad9dfc0179dc 571 */
EricLew 0:ad9dfc0179dc 572 static uint8_t stmpe1600_GetInstance(uint16_t DeviceAddr)
EricLew 0:ad9dfc0179dc 573 {
EricLew 0:ad9dfc0179dc 574 uint8_t idx = 0;
EricLew 0:ad9dfc0179dc 575
EricLew 0:ad9dfc0179dc 576 /* Check all the registered instances */
EricLew 0:ad9dfc0179dc 577 for(idx = 0; idx < STMPE1600_MAX_INSTANCE ; idx ++)
EricLew 0:ad9dfc0179dc 578 {
EricLew 0:ad9dfc0179dc 579 /* Return index if there is address match */
EricLew 0:ad9dfc0179dc 580 if(stmpe1600[idx] == DeviceAddr)
EricLew 0:ad9dfc0179dc 581 {
EricLew 0:ad9dfc0179dc 582 return idx;
EricLew 0:ad9dfc0179dc 583 }
EricLew 0:ad9dfc0179dc 584 }
EricLew 0:ad9dfc0179dc 585
EricLew 0:ad9dfc0179dc 586 return 0xFF;
EricLew 0:ad9dfc0179dc 587 }
EricLew 0:ad9dfc0179dc 588
EricLew 0:ad9dfc0179dc 589 /**
EricLew 0:ad9dfc0179dc 590 * @}
EricLew 0:ad9dfc0179dc 591 */
EricLew 0:ad9dfc0179dc 592
EricLew 0:ad9dfc0179dc 593 /**
EricLew 0:ad9dfc0179dc 594 * @}
EricLew 0:ad9dfc0179dc 595 */
EricLew 0:ad9dfc0179dc 596
EricLew 0:ad9dfc0179dc 597 /**
EricLew 0:ad9dfc0179dc 598 * @}
EricLew 0:ad9dfc0179dc 599 */
EricLew 0:ad9dfc0179dc 600
EricLew 0:ad9dfc0179dc 601 /**
EricLew 0:ad9dfc0179dc 602 * @}
EricLew 0:ad9dfc0179dc 603 */
EricLew 0:ad9dfc0179dc 604 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
EricLew 0:ad9dfc0179dc 605