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Dependencies:   mbed

stm32f4xx_gpio_mort.c@0:34ee385f4d2d, 2021-10-23 (annotated)

Committer:
rajathr
Date:
Sat Oct 23 05:49:09 2021 +0000
Revision:
0:34ee385f4d2d
At 23rd Oct 21 - All Code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rajathr 0:34ee385f4d2d 1 /**
rajathr 0:34ee385f4d2d 2 ******************************************************************************
rajathr 0:34ee385f4d2d 3 * @file stm32f4xx_gpio_mort.c
rajathr 0:34ee385f4d2d 4 * @author MCD Application Team
rajathr 0:34ee385f4d2d 5 * @version V1.8.0
rajathr 0:34ee385f4d2d 6 * @date 04-November-2016
rajathr 0:34ee385f4d2d 7 * @brief This file provides firmware functions to manage the following
rajathr 0:34ee385f4d2d 8 * functionalities of the GPIO peripheral:
rajathr 0:34ee385f4d2d 9 * + Initialization and Configuration
rajathr 0:34ee385f4d2d 10 * + GPIO Read and Write
rajathr 0:34ee385f4d2d 11 * + GPIO Alternate functions configuration
rajathr 0:34ee385f4d2d 12 *
rajathr 0:34ee385f4d2d 13 @verbatim
rajathr 0:34ee385f4d2d 14 ===============================================================================
rajathr 0:34ee385f4d2d 15 ##### How to use this driver #####
rajathr 0:34ee385f4d2d 16 ===============================================================================
rajathr 0:34ee385f4d2d 17 [..]
rajathr 0:34ee385f4d2d 18 (#) Enable the GPIO AHB clock using the following function
rajathr 0:34ee385f4d2d 19 RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOx, ENABLE);
rajathr 0:34ee385f4d2d 20
rajathr 0:34ee385f4d2d 21 (#) Configure the GPIO pin(s) using GPIO_Init()
rajathr 0:34ee385f4d2d 22 Four possible configuration are available for each pin:
rajathr 0:34ee385f4d2d 23 (++) Input: Floating, Pull-up, Pull-down.
rajathr 0:34ee385f4d2d 24 (++) Output: Push-Pull (Pull-up, Pull-down or no Pull)
rajathr 0:34ee385f4d2d 25 Open Drain (Pull-up, Pull-down or no Pull). In output mode, the speed
rajathr 0:34ee385f4d2d 26 is configurable: 2 MHz, 25 MHz, 50 MHz or 100 MHz.
rajathr 0:34ee385f4d2d 27 (++) Alternate Function: Push-Pull (Pull-up, Pull-down or no Pull) Open
rajathr 0:34ee385f4d2d 28 Drain (Pull-up, Pull-down or no Pull).
rajathr 0:34ee385f4d2d 29 (++) Analog: required mode when a pin is to be used as ADC channel or DAC
rajathr 0:34ee385f4d2d 30 output.
rajathr 0:34ee385f4d2d 31
rajathr 0:34ee385f4d2d 32 (#) Peripherals alternate function:
rajathr 0:34ee385f4d2d 33 (++) For ADC and DAC, configure the desired pin in analog mode using
rajathr 0:34ee385f4d2d 34 GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AN;
rajathr 0:34ee385f4d2d 35 (+++) For other peripherals (TIM, USART...):
rajathr 0:34ee385f4d2d 36 (+++) Connect the pin to the desired peripherals' Alternate
rajathr 0:34ee385f4d2d 37 Function (AF) using GPIO_PinAFConfig() function
rajathr 0:34ee385f4d2d 38 (+++) Configure the desired pin in alternate function mode using
rajathr 0:34ee385f4d2d 39 GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
rajathr 0:34ee385f4d2d 40 (+++) Select the type, pull-up/pull-down and output speed via
rajathr 0:34ee385f4d2d 41 GPIO_PuPd, GPIO_OType and GPIO_Speed members
rajathr 0:34ee385f4d2d 42 (+++) Call GPIO_Init() function
rajathr 0:34ee385f4d2d 43
rajathr 0:34ee385f4d2d 44 (#) To get the level of a pin configured in input mode use GPIO_ReadInputDataBit()
rajathr 0:34ee385f4d2d 45
rajathr 0:34ee385f4d2d 46 (#) To set/reset the level of a pin configured in output mode use
rajathr 0:34ee385f4d2d 47 GPIO_SetBits()/GPIO_ResetBits()
rajathr 0:34ee385f4d2d 48
rajathr 0:34ee385f4d2d 49 (#) During and just after reset, the alternate functions are not
rajathr 0:34ee385f4d2d 50 active and the GPIO pins are configured in input floating mode (except JTAG
rajathr 0:34ee385f4d2d 51 pins).
rajathr 0:34ee385f4d2d 52
rajathr 0:34ee385f4d2d 53 (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose
rajathr 0:34ee385f4d2d 54 (PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has
rajathr 0:34ee385f4d2d 55 priority over the GPIO function.
rajathr 0:34ee385f4d2d 56
rajathr 0:34ee385f4d2d 57 (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as
rajathr 0:34ee385f4d2d 58 general purpose PH0 and PH1, respectively, when the HSE oscillator is off.
rajathr 0:34ee385f4d2d 59 The HSE has priority over the GPIO function.
rajathr 0:34ee385f4d2d 60
rajathr 0:34ee385f4d2d 61 @endverbatim
rajathr 0:34ee385f4d2d 62 *
rajathr 0:34ee385f4d2d 63 ******************************************************************************
rajathr 0:34ee385f4d2d 64 * @attention
rajathr 0:34ee385f4d2d 65 *
rajathr 0:34ee385f4d2d 66 * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
rajathr 0:34ee385f4d2d 67 *
rajathr 0:34ee385f4d2d 68 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
rajathr 0:34ee385f4d2d 69 * You may not use this file except in compliance with the License.
rajathr 0:34ee385f4d2d 70 * You may obtain a copy of the License at:
rajathr 0:34ee385f4d2d 71 *
rajathr 0:34ee385f4d2d 72 * http://www.st.com/software_license_agreement_liberty_v2
rajathr 0:34ee385f4d2d 73 *
rajathr 0:34ee385f4d2d 74 * Unless required by applicable law or agreed to in writing, software
rajathr 0:34ee385f4d2d 75 * distributed under the License is distributed on an "AS IS" BASIS,
rajathr 0:34ee385f4d2d 76 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rajathr 0:34ee385f4d2d 77 * See the License for the specific language governing permissions and
rajathr 0:34ee385f4d2d 78 * limitations under the License.
rajathr 0:34ee385f4d2d 79 *
rajathr 0:34ee385f4d2d 80 ******************************************************************************
rajathr 0:34ee385f4d2d 81 */
rajathr 0:34ee385f4d2d 82
rajathr 0:34ee385f4d2d 83 /* Includes ------------------------------------------------------------------*/
rajathr 0:34ee385f4d2d 84 #include "stm32f4xx_gpio_mort.h"
rajathr 0:34ee385f4d2d 85 #include "stm32f4xx_rcc_mort.h"
rajathr 0:34ee385f4d2d 86
rajathr 0:34ee385f4d2d 87 /** @addtogroup STM32F4xx_StdPeriph_Driver
rajathr 0:34ee385f4d2d 88 * @{
rajathr 0:34ee385f4d2d 89 */
rajathr 0:34ee385f4d2d 90
rajathr 0:34ee385f4d2d 91 /** @defgroup GPIO
rajathr 0:34ee385f4d2d 92 * @brief GPIO driver modules
rajathr 0:34ee385f4d2d 93 * @{
rajathr 0:34ee385f4d2d 94 */
rajathr 0:34ee385f4d2d 95
rajathr 0:34ee385f4d2d 96 /* Private typedef -----------------------------------------------------------*/
rajathr 0:34ee385f4d2d 97 /* Private define ------------------------------------------------------------*/
rajathr 0:34ee385f4d2d 98 /* Private macro -------------------------------------------------------------*/
rajathr 0:34ee385f4d2d 99 /* Private variables ---------------------------------------------------------*/
rajathr 0:34ee385f4d2d 100 /* Private function prototypes -----------------------------------------------*/
rajathr 0:34ee385f4d2d 101 /* Private functions ---------------------------------------------------------*/
rajathr 0:34ee385f4d2d 102
rajathr 0:34ee385f4d2d 103 /** @defgroup GPIO_Private_Functions
rajathr 0:34ee385f4d2d 104 * @{
rajathr 0:34ee385f4d2d 105 */
rajathr 0:34ee385f4d2d 106
rajathr 0:34ee385f4d2d 107 /** @defgroup GPIO_Group1 Initialization and Configuration
rajathr 0:34ee385f4d2d 108 * @brief Initialization and Configuration
rajathr 0:34ee385f4d2d 109 *
rajathr 0:34ee385f4d2d 110 @verbatim
rajathr 0:34ee385f4d2d 111 ===============================================================================
rajathr 0:34ee385f4d2d 112 ##### Initialization and Configuration #####
rajathr 0:34ee385f4d2d 113 ===============================================================================
rajathr 0:34ee385f4d2d 114
rajathr 0:34ee385f4d2d 115 @endverbatim
rajathr 0:34ee385f4d2d 116 * @{
rajathr 0:34ee385f4d2d 117 */
rajathr 0:34ee385f4d2d 118
rajathr 0:34ee385f4d2d 119 /**
rajathr 0:34ee385f4d2d 120 * @brief De-initializes the GPIOx peripheral registers to their default reset values.
rajathr 0:34ee385f4d2d 121 * @note By default, The GPIO pins are configured in input floating mode (except JTAG pins).
rajathr 0:34ee385f4d2d 122 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 123 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 124 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 125 * @retval None
rajathr 0:34ee385f4d2d 126 */
rajathr 0:34ee385f4d2d 127 void GPIO_DeInit_mort(GPIO_TypeDef_mort* GPIOx)
rajathr 0:34ee385f4d2d 128 {
rajathr 0:34ee385f4d2d 129 /* Check the parameters */
rajathr 0:34ee385f4d2d 130 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 131
rajathr 0:34ee385f4d2d 132 if (GPIOx == GPIOA_MORT)
rajathr 0:34ee385f4d2d 133 {
rajathr 0:34ee385f4d2d 134 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOA, ENABLE);
rajathr 0:34ee385f4d2d 135 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOA, DISABLE);
rajathr 0:34ee385f4d2d 136 }
rajathr 0:34ee385f4d2d 137 else if (GPIOx == GPIOB_MORT)
rajathr 0:34ee385f4d2d 138 {
rajathr 0:34ee385f4d2d 139 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOB, ENABLE);
rajathr 0:34ee385f4d2d 140 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOB, DISABLE);
rajathr 0:34ee385f4d2d 141 }
rajathr 0:34ee385f4d2d 142 else if (GPIOx == GPIOC_MORT)
rajathr 0:34ee385f4d2d 143 {
rajathr 0:34ee385f4d2d 144 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOC, ENABLE);
rajathr 0:34ee385f4d2d 145 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOC, DISABLE);
rajathr 0:34ee385f4d2d 146 }
rajathr 0:34ee385f4d2d 147 else if (GPIOx == GPIOD_MORT)
rajathr 0:34ee385f4d2d 148 {
rajathr 0:34ee385f4d2d 149 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOD, ENABLE);
rajathr 0:34ee385f4d2d 150 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOD, DISABLE);
rajathr 0:34ee385f4d2d 151 }
rajathr 0:34ee385f4d2d 152 else if (GPIOx == GPIOE_MORT)
rajathr 0:34ee385f4d2d 153 {
rajathr 0:34ee385f4d2d 154 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOE, ENABLE);
rajathr 0:34ee385f4d2d 155 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOE, DISABLE);
rajathr 0:34ee385f4d2d 156 }
rajathr 0:34ee385f4d2d 157 else if (GPIOx == GPIOF_MORT)
rajathr 0:34ee385f4d2d 158 {
rajathr 0:34ee385f4d2d 159 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOF, ENABLE);
rajathr 0:34ee385f4d2d 160 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOF, DISABLE);
rajathr 0:34ee385f4d2d 161 }
rajathr 0:34ee385f4d2d 162 else if (GPIOx == GPIOG_MORT)
rajathr 0:34ee385f4d2d 163 {
rajathr 0:34ee385f4d2d 164 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOG, ENABLE);
rajathr 0:34ee385f4d2d 165 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOG, DISABLE);
rajathr 0:34ee385f4d2d 166 }
rajathr 0:34ee385f4d2d 167 else if(GPIOx == GPIOH_MORT)
rajathr 0:34ee385f4d2d 168 {
rajathr 0:34ee385f4d2d 169 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOH, ENABLE);
rajathr 0:34ee385f4d2d 170 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOH, DISABLE);
rajathr 0:34ee385f4d2d 171 }
rajathr 0:34ee385f4d2d 172
rajathr 0:34ee385f4d2d 173 /*else if (GPIOx == GPIOI)
rajathr 0:34ee385f4d2d 174 {
rajathr 0:34ee385f4d2d 175 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOI, ENABLE);
rajathr 0:34ee385f4d2d 176 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOI, DISABLE);
rajathr 0:34ee385f4d2d 177 }
rajathr 0:34ee385f4d2d 178 else if (GPIOx == GPIOJ)
rajathr 0:34ee385f4d2d 179 {
rajathr 0:34ee385f4d2d 180 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOJ, ENABLE);
rajathr 0:34ee385f4d2d 181 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOJ, DISABLE);
rajathr 0:34ee385f4d2d 182 }
rajathr 0:34ee385f4d2d 183 else
rajathr 0:34ee385f4d2d 184 {
rajathr 0:34ee385f4d2d 185 if (GPIOx == GPIOK)
rajathr 0:34ee385f4d2d 186 {
rajathr 0:34ee385f4d2d 187 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOK, ENABLE);
rajathr 0:34ee385f4d2d 188 RCC_AHB1PeriphResetCmd(RCC_AHB1Periph_GPIOK, DISABLE);
rajathr 0:34ee385f4d2d 189 }
rajathr 0:34ee385f4d2d 190 }*/
rajathr 0:34ee385f4d2d 191 }
rajathr 0:34ee385f4d2d 192
rajathr 0:34ee385f4d2d 193 /**
rajathr 0:34ee385f4d2d 194 * @brief Initializes the GPIOx peripheral according to the specified parameters in the GPIO_InitStruct.
rajathr 0:34ee385f4d2d 195 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 196 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 197 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 198 * @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that contains
rajathr 0:34ee385f4d2d 199 * the configuration information for the specified GPIO peripheral.
rajathr 0:34ee385f4d2d 200 * @retval None
rajathr 0:34ee385f4d2d 201 */
rajathr 0:34ee385f4d2d 202 void GPIO_Init_mort(GPIO_TypeDef_mort* GPIOx, GPIO_InitTypeDef_mort* GPIO_InitStruct)
rajathr 0:34ee385f4d2d 203 {
rajathr 0:34ee385f4d2d 204 uint32_t pinpos = 0x00, pos = 0x00 , currentpin = 0x00;
rajathr 0:34ee385f4d2d 205
rajathr 0:34ee385f4d2d 206 /* Check the parameters */
rajathr 0:34ee385f4d2d 207 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 208 assert_param(IS_GPIO_PIN_MORT(GPIO_InitStruct->GPIO_Pin));
rajathr 0:34ee385f4d2d 209 assert_param(IS_GPIO_MODE_MORT(GPIO_InitStruct->GPIO_Mode));
rajathr 0:34ee385f4d2d 210 assert_param(IS_GPIO_PUPD(GPIO_InitStruct->GPIO_PuPd));
rajathr 0:34ee385f4d2d 211
rajathr 0:34ee385f4d2d 212 /* ------------------------- Configure the port pins ---------------- */
rajathr 0:34ee385f4d2d 213 /*-- GPIO Mode Configuration --*/
rajathr 0:34ee385f4d2d 214 for (pinpos = 0x00; pinpos < 0x10; pinpos++)
rajathr 0:34ee385f4d2d 215 {
rajathr 0:34ee385f4d2d 216 pos = ((uint32_t)0x01) << pinpos;
rajathr 0:34ee385f4d2d 217 /* Get the port pins position */
rajathr 0:34ee385f4d2d 218 currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
rajathr 0:34ee385f4d2d 219
rajathr 0:34ee385f4d2d 220 if (currentpin == pos)
rajathr 0:34ee385f4d2d 221 {
rajathr 0:34ee385f4d2d 222 GPIOx->MODER &= ~(GPIO_MODER_MODER0_MORT << (pinpos * 2));
rajathr 0:34ee385f4d2d 223 GPIOx->MODER |= (((uint32_t)GPIO_InitStruct->GPIO_Mode) << (pinpos * 2));
rajathr 0:34ee385f4d2d 224
rajathr 0:34ee385f4d2d 225 if ((GPIO_InitStruct->GPIO_Mode == GPIO_Mode_OUT) || (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_AF))
rajathr 0:34ee385f4d2d 226 {
rajathr 0:34ee385f4d2d 227 /* Check Speed mode parameters */
rajathr 0:34ee385f4d2d 228 assert_param(IS_GPIO_SPEED_MORT_MORT(GPIO_InitStruct->GPIO_Speed));
rajathr 0:34ee385f4d2d 229
rajathr 0:34ee385f4d2d 230 /* Speed mode configuration */
rajathr 0:34ee385f4d2d 231 GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0_MORT << (pinpos * 2));
rajathr 0:34ee385f4d2d 232 GPIOx->OSPEEDR |= ((uint32_t)(GPIO_InitStruct->GPIO_Speed) << (pinpos * 2));
rajathr 0:34ee385f4d2d 233
rajathr 0:34ee385f4d2d 234 /* Check Output mode parameters */
rajathr 0:34ee385f4d2d 235 assert_param(IS_GPIO_OTYPE(GPIO_InitStruct->GPIO_OType));
rajathr 0:34ee385f4d2d 236
rajathr 0:34ee385f4d2d 237 /* Output mode configuration*/
rajathr 0:34ee385f4d2d 238 GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0_MORT) << ((uint16_t)pinpos)) ;
rajathr 0:34ee385f4d2d 239 GPIOx->OTYPER |= (uint16_t)(((uint16_t)GPIO_InitStruct->GPIO_OType) << ((uint16_t)pinpos));
rajathr 0:34ee385f4d2d 240 }
rajathr 0:34ee385f4d2d 241
rajathr 0:34ee385f4d2d 242 /* Pull-up Pull down resistor configuration*/
rajathr 0:34ee385f4d2d 243 GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0_MORT << ((uint16_t)pinpos * 2));
rajathr 0:34ee385f4d2d 244 GPIOx->PUPDR |= (((uint32_t)GPIO_InitStruct->GPIO_PuPd) << (pinpos * 2));
rajathr 0:34ee385f4d2d 245 }
rajathr 0:34ee385f4d2d 246 }
rajathr 0:34ee385f4d2d 247 }
rajathr 0:34ee385f4d2d 248
rajathr 0:34ee385f4d2d 249 /**
rajathr 0:34ee385f4d2d 250 * @brief Fills each GPIO_InitStruct member with its default value.
rajathr 0:34ee385f4d2d 251 * @param GPIO_InitStruct : pointer to a GPIO_InitTypeDef structure which will be initialized.
rajathr 0:34ee385f4d2d 252 * @retval None
rajathr 0:34ee385f4d2d 253 */
rajathr 0:34ee385f4d2d 254 void GPIO_StructInit_mort(GPIO_InitTypeDef_mort* GPIO_InitStruct)
rajathr 0:34ee385f4d2d 255 {
rajathr 0:34ee385f4d2d 256 /* Reset GPIO init structure parameters values */
rajathr 0:34ee385f4d2d 257 GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
rajathr 0:34ee385f4d2d 258 GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN;
rajathr 0:34ee385f4d2d 259 GPIO_InitStruct->GPIO_Speed = GPIO_Speed_2MHz;
rajathr 0:34ee385f4d2d 260 GPIO_InitStruct->GPIO_OType = GPIO_OType_PP;
rajathr 0:34ee385f4d2d 261 GPIO_InitStruct->GPIO_PuPd = GPIO_PuPd_NOPULL;
rajathr 0:34ee385f4d2d 262 }
rajathr 0:34ee385f4d2d 263
rajathr 0:34ee385f4d2d 264 /**
rajathr 0:34ee385f4d2d 265 * @brief Locks GPIO Pins configuration registers.
rajathr 0:34ee385f4d2d 266 * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
rajathr 0:34ee385f4d2d 267 * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
rajathr 0:34ee385f4d2d 268 * @note The configuration of the locked GPIO pins can no longer be modified
rajathr 0:34ee385f4d2d 269 * until the next reset.
rajathr 0:34ee385f4d2d 270 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 271 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 272 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 273 * @param GPIO_Pin: specifies the port bit to be locked.
rajathr 0:34ee385f4d2d 274 * This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
rajathr 0:34ee385f4d2d 275 * @retval None
rajathr 0:34ee385f4d2d 276 */
rajathr 0:34ee385f4d2d 277 void GPIO_PinLockConfig_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_Pin)
rajathr 0:34ee385f4d2d 278 {
rajathr 0:34ee385f4d2d 279 __IO uint32_t tmp = 0x00010000;
rajathr 0:34ee385f4d2d 280
rajathr 0:34ee385f4d2d 281 /* Check the parameters */
rajathr 0:34ee385f4d2d 282 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 283 assert_param(IS_GPIO_PIN_MORT(GPIO_Pin));
rajathr 0:34ee385f4d2d 284
rajathr 0:34ee385f4d2d 285 tmp |= GPIO_Pin;
rajathr 0:34ee385f4d2d 286 /* Set LCKK bit */
rajathr 0:34ee385f4d2d 287 GPIOx->LCKR = tmp;
rajathr 0:34ee385f4d2d 288 /* Reset LCKK bit */
rajathr 0:34ee385f4d2d 289 GPIOx->LCKR = GPIO_Pin;
rajathr 0:34ee385f4d2d 290 /* Set LCKK bit */
rajathr 0:34ee385f4d2d 291 GPIOx->LCKR = tmp;
rajathr 0:34ee385f4d2d 292 /* Read LCKK bit*/
rajathr 0:34ee385f4d2d 293 tmp = GPIOx->LCKR;
rajathr 0:34ee385f4d2d 294 /* Read LCKK bit*/
rajathr 0:34ee385f4d2d 295 tmp = GPIOx->LCKR;
rajathr 0:34ee385f4d2d 296 }
rajathr 0:34ee385f4d2d 297
rajathr 0:34ee385f4d2d 298 /**
rajathr 0:34ee385f4d2d 299 * @}
rajathr 0:34ee385f4d2d 300 */
rajathr 0:34ee385f4d2d 301
rajathr 0:34ee385f4d2d 302 /** @defgroup GPIO_Group2 GPIO Read and Write
rajathr 0:34ee385f4d2d 303 * @brief GPIO Read and Write
rajathr 0:34ee385f4d2d 304 *
rajathr 0:34ee385f4d2d 305 @verbatim
rajathr 0:34ee385f4d2d 306 ===============================================================================
rajathr 0:34ee385f4d2d 307 ##### GPIO Read and Write #####
rajathr 0:34ee385f4d2d 308 ===============================================================================
rajathr 0:34ee385f4d2d 309
rajathr 0:34ee385f4d2d 310 @endverbatim
rajathr 0:34ee385f4d2d 311 * @{
rajathr 0:34ee385f4d2d 312 */
rajathr 0:34ee385f4d2d 313
rajathr 0:34ee385f4d2d 314 /**
rajathr 0:34ee385f4d2d 315 * @brief Reads the specified input port pin.
rajathr 0:34ee385f4d2d 316 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 317 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 318 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 319 * @param GPIO_Pin: specifies the port bit to read.
rajathr 0:34ee385f4d2d 320 * This parameter can be GPIO_Pin_x where x can be (0..15).
rajathr 0:34ee385f4d2d 321 * @retval The input port pin value.
rajathr 0:34ee385f4d2d 322 */
rajathr 0:34ee385f4d2d 323 uint8_t GPIO_ReadInputDataBit_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_Pin)
rajathr 0:34ee385f4d2d 324 {
rajathr 0:34ee385f4d2d 325 uint8_t bitstatus = 0x00;
rajathr 0:34ee385f4d2d 326
rajathr 0:34ee385f4d2d 327 /* Check the parameters */
rajathr 0:34ee385f4d2d 328 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 329 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
rajathr 0:34ee385f4d2d 330
rajathr 0:34ee385f4d2d 331 if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET)
rajathr 0:34ee385f4d2d 332 {
rajathr 0:34ee385f4d2d 333 bitstatus = (uint8_t)Bit_SET;
rajathr 0:34ee385f4d2d 334 }
rajathr 0:34ee385f4d2d 335 else
rajathr 0:34ee385f4d2d 336 {
rajathr 0:34ee385f4d2d 337 bitstatus = (uint8_t)Bit_RESET;
rajathr 0:34ee385f4d2d 338 }
rajathr 0:34ee385f4d2d 339 return bitstatus;
rajathr 0:34ee385f4d2d 340 }
rajathr 0:34ee385f4d2d 341
rajathr 0:34ee385f4d2d 342 /**
rajathr 0:34ee385f4d2d 343 * @brief Reads the specified GPIO input data port.
rajathr 0:34ee385f4d2d 344 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 345 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 346 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 347 * @retval GPIO input data port value.
rajathr 0:34ee385f4d2d 348 */
rajathr 0:34ee385f4d2d 349 uint16_t GPIO_ReadInputData_mort(GPIO_TypeDef_mort* GPIOx)
rajathr 0:34ee385f4d2d 350 {
rajathr 0:34ee385f4d2d 351 /* Check the parameters */
rajathr 0:34ee385f4d2d 352 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 353
rajathr 0:34ee385f4d2d 354 return ((uint16_t)GPIOx->IDR);
rajathr 0:34ee385f4d2d 355 }
rajathr 0:34ee385f4d2d 356
rajathr 0:34ee385f4d2d 357 /**
rajathr 0:34ee385f4d2d 358 * @brief Reads the specified output data port bit.
rajathr 0:34ee385f4d2d 359 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 360 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 361 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 362 * @param GPIO_Pin: specifies the port bit to read.
rajathr 0:34ee385f4d2d 363 * This parameter can be GPIO_Pin_x where x can be (0..15).
rajathr 0:34ee385f4d2d 364 * @retval The output port pin value.
rajathr 0:34ee385f4d2d 365 */
rajathr 0:34ee385f4d2d 366 uint8_t GPIO_ReadOutputDataBit_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_Pin)
rajathr 0:34ee385f4d2d 367 {
rajathr 0:34ee385f4d2d 368 uint8_t bitstatus = 0x00;
rajathr 0:34ee385f4d2d 369
rajathr 0:34ee385f4d2d 370 /* Check the parameters */
rajathr 0:34ee385f4d2d 371 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 372 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
rajathr 0:34ee385f4d2d 373
rajathr 0:34ee385f4d2d 374 if (((GPIOx->ODR) & GPIO_Pin) != (uint32_t)Bit_RESET)
rajathr 0:34ee385f4d2d 375 {
rajathr 0:34ee385f4d2d 376 bitstatus = (uint8_t)Bit_SET;
rajathr 0:34ee385f4d2d 377 }
rajathr 0:34ee385f4d2d 378 else
rajathr 0:34ee385f4d2d 379 {
rajathr 0:34ee385f4d2d 380 bitstatus = (uint8_t)Bit_RESET;
rajathr 0:34ee385f4d2d 381 }
rajathr 0:34ee385f4d2d 382 return bitstatus;
rajathr 0:34ee385f4d2d 383 }
rajathr 0:34ee385f4d2d 384
rajathr 0:34ee385f4d2d 385 /**
rajathr 0:34ee385f4d2d 386 * @brief Reads the specified GPIO output data port.
rajathr 0:34ee385f4d2d 387 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 388 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 389 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 390 * @retval GPIO output data port value.
rajathr 0:34ee385f4d2d 391 */
rajathr 0:34ee385f4d2d 392 uint16_t GPIO_ReadOutputData_mort(GPIO_TypeDef_mort* GPIOx)
rajathr 0:34ee385f4d2d 393 {
rajathr 0:34ee385f4d2d 394 /* Check the parameters */
rajathr 0:34ee385f4d2d 395 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 396
rajathr 0:34ee385f4d2d 397 return ((uint16_t)GPIOx->ODR);
rajathr 0:34ee385f4d2d 398 }
rajathr 0:34ee385f4d2d 399
rajathr 0:34ee385f4d2d 400 /**
rajathr 0:34ee385f4d2d 401 * @brief Sets the selected data port bits.
rajathr 0:34ee385f4d2d 402 * @note This functions uses GPIOx_BSRR register to allow atomic read/modify
rajathr 0:34ee385f4d2d 403 * accesses. In this way, there is no risk of an IRQ occurring between
rajathr 0:34ee385f4d2d 404 * the read and the modify access.
rajathr 0:34ee385f4d2d 405 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 406 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 407 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 408 * @param GPIO_Pin: specifies the port bits to be written.
rajathr 0:34ee385f4d2d 409 * This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
rajathr 0:34ee385f4d2d 410 * @retval None
rajathr 0:34ee385f4d2d 411 */
rajathr 0:34ee385f4d2d 412 void GPIO_SetBits_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_Pin)
rajathr 0:34ee385f4d2d 413 {
rajathr 0:34ee385f4d2d 414 /* Check the parameters */
rajathr 0:34ee385f4d2d 415 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 416 assert_param(IS_GPIO_PIN_MORT(GPIO_Pin));
rajathr 0:34ee385f4d2d 417
rajathr 0:34ee385f4d2d 418 GPIOx->BSRRL = GPIO_Pin;
rajathr 0:34ee385f4d2d 419 }
rajathr 0:34ee385f4d2d 420
rajathr 0:34ee385f4d2d 421 /**
rajathr 0:34ee385f4d2d 422 * @brief Clears the selected data port bits.
rajathr 0:34ee385f4d2d 423 * @note This functions uses GPIOx_BSRR register to allow atomic read/modify
rajathr 0:34ee385f4d2d 424 * accesses. In this way, there is no risk of an IRQ occurring between
rajathr 0:34ee385f4d2d 425 * the read and the modify access.
rajathr 0:34ee385f4d2d 426 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 427 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 428 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 429 * @param GPIO_Pin: specifies the port bits to be written.
rajathr 0:34ee385f4d2d 430 * This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
rajathr 0:34ee385f4d2d 431 * @retval None
rajathr 0:34ee385f4d2d 432 */
rajathr 0:34ee385f4d2d 433 void GPIO_ResetBits_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_Pin)
rajathr 0:34ee385f4d2d 434 {
rajathr 0:34ee385f4d2d 435 /* Check the parameters */
rajathr 0:34ee385f4d2d 436 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 437 assert_param(IS_GPIO_PIN_MORT(GPIO_Pin));
rajathr 0:34ee385f4d2d 438
rajathr 0:34ee385f4d2d 439 GPIOx->BSRRH = GPIO_Pin;
rajathr 0:34ee385f4d2d 440 }
rajathr 0:34ee385f4d2d 441
rajathr 0:34ee385f4d2d 442 /**
rajathr 0:34ee385f4d2d 443 * @brief Sets or clears the selected data port bit.
rajathr 0:34ee385f4d2d 444 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 445 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 446 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 447 * @param GPIO_Pin: specifies the port bit to be written.
rajathr 0:34ee385f4d2d 448 * This parameter can be one of GPIO_Pin_x where x can be (0..15).
rajathr 0:34ee385f4d2d 449 * @param BitVal: specifies the value to be written to the selected bit.
rajathr 0:34ee385f4d2d 450 * This parameter can be one of the BitAction enum values:
rajathr 0:34ee385f4d2d 451 * @arg Bit_RESET: to clear the port pin
rajathr 0:34ee385f4d2d 452 * @arg Bit_SET: to set the port pin
rajathr 0:34ee385f4d2d 453 * @retval None
rajathr 0:34ee385f4d2d 454 */
rajathr 0:34ee385f4d2d 455 void GPIO_WriteBit_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
rajathr 0:34ee385f4d2d 456 {
rajathr 0:34ee385f4d2d 457 /* Check the parameters */
rajathr 0:34ee385f4d2d 458 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 459 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
rajathr 0:34ee385f4d2d 460 assert_param(IS_GPIO_BIT_ACTION(BitVal));
rajathr 0:34ee385f4d2d 461
rajathr 0:34ee385f4d2d 462 if (BitVal != Bit_RESET)
rajathr 0:34ee385f4d2d 463 {
rajathr 0:34ee385f4d2d 464 GPIOx->BSRRL = GPIO_Pin;
rajathr 0:34ee385f4d2d 465 }
rajathr 0:34ee385f4d2d 466 else
rajathr 0:34ee385f4d2d 467 {
rajathr 0:34ee385f4d2d 468 GPIOx->BSRRH = GPIO_Pin ;
rajathr 0:34ee385f4d2d 469 }
rajathr 0:34ee385f4d2d 470 }
rajathr 0:34ee385f4d2d 471
rajathr 0:34ee385f4d2d 472 /**
rajathr 0:34ee385f4d2d 473 * @brief Writes data to the specified GPIO data port.
rajathr 0:34ee385f4d2d 474 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 475 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 476 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 477 * @param PortVal: specifies the value to be written to the port output data register.
rajathr 0:34ee385f4d2d 478 * @retval None
rajathr 0:34ee385f4d2d 479 */
rajathr 0:34ee385f4d2d 480 void GPIO_Write_mort(GPIO_TypeDef_mort* GPIOx, uint16_t PortVal)
rajathr 0:34ee385f4d2d 481 {
rajathr 0:34ee385f4d2d 482 /* Check the parameters */
rajathr 0:34ee385f4d2d 483 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 484
rajathr 0:34ee385f4d2d 485 GPIOx->ODR = PortVal;
rajathr 0:34ee385f4d2d 486 }
rajathr 0:34ee385f4d2d 487
rajathr 0:34ee385f4d2d 488 /**
rajathr 0:34ee385f4d2d 489 * @brief Toggles the specified GPIO pins..
rajathr 0:34ee385f4d2d 490 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 491 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 492 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 493 * @param GPIO_Pin: Specifies the pins to be toggled.
rajathr 0:34ee385f4d2d 494 * @retval None
rajathr 0:34ee385f4d2d 495 */
rajathr 0:34ee385f4d2d 496 void GPIO_ToggleBits_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_Pin)
rajathr 0:34ee385f4d2d 497 {
rajathr 0:34ee385f4d2d 498 /* Check the parameters */
rajathr 0:34ee385f4d2d 499 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 500
rajathr 0:34ee385f4d2d 501 GPIOx->ODR ^= GPIO_Pin;
rajathr 0:34ee385f4d2d 502 }
rajathr 0:34ee385f4d2d 503
rajathr 0:34ee385f4d2d 504 /**
rajathr 0:34ee385f4d2d 505 * @}
rajathr 0:34ee385f4d2d 506 */
rajathr 0:34ee385f4d2d 507
rajathr 0:34ee385f4d2d 508 /** @defgroup GPIO_Group3 GPIO Alternate functions configuration function
rajathr 0:34ee385f4d2d 509 * @brief GPIO Alternate functions configuration function
rajathr 0:34ee385f4d2d 510 *
rajathr 0:34ee385f4d2d 511 @verbatim
rajathr 0:34ee385f4d2d 512 ===============================================================================
rajathr 0:34ee385f4d2d 513 ##### GPIO Alternate functions configuration function #####
rajathr 0:34ee385f4d2d 514 ===============================================================================
rajathr 0:34ee385f4d2d 515
rajathr 0:34ee385f4d2d 516 @endverbatim
rajathr 0:34ee385f4d2d 517 * @{
rajathr 0:34ee385f4d2d 518 */
rajathr 0:34ee385f4d2d 519
rajathr 0:34ee385f4d2d 520 /**
rajathr 0:34ee385f4d2d 521 * @brief Changes the mapping of the specified pin.
rajathr 0:34ee385f4d2d 522 * @param GPIOx: where x can be (A..K) to select the GPIO peripheral for STM32F405xx/407xx and STM32F415xx/417xx devices
rajathr 0:34ee385f4d2d 523 * x can be (A..I) to select the GPIO peripheral for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 524 * x can be (A, B, C, D and H) to select the GPIO peripheral for STM32F401xx devices.
rajathr 0:34ee385f4d2d 525 * @param GPIO_PinSource: specifies the pin for the Alternate function.
rajathr 0:34ee385f4d2d 526 * This parameter can be GPIO_PinSourcex where x can be (0..15).
rajathr 0:34ee385f4d2d 527 * @param GPIO_AFSelection: selects the pin to used as Alternate function.
rajathr 0:34ee385f4d2d 528 * This parameter can be one of the following values:
rajathr 0:34ee385f4d2d 529 * @arg GPIO_AF_RTC_50Hz: Connect RTC_50Hz pin to AF0 (default after reset)
rajathr 0:34ee385f4d2d 530 * @arg GPIO_AF_MCO: Connect MCO pin (MCO1 and MCO2) to AF0 (default after reset)
rajathr 0:34ee385f4d2d 531 * @arg GPIO_AF_TAMPER: Connect TAMPER pins (TAMPER_1 and TAMPER_2) to AF0 (default after reset)
rajathr 0:34ee385f4d2d 532 * @arg GPIO_AF_SWJ: Connect SWJ pins (SWD and JTAG)to AF0 (default after reset)
rajathr 0:34ee385f4d2d 533 * @arg GPIO_AF_TRACE: Connect TRACE pins to AF0 (default after reset)
rajathr 0:34ee385f4d2d 534 * @arg GPIO_AF_TIM1: Connect TIM1 pins to AF1
rajathr 0:34ee385f4d2d 535 * @arg GPIO_AF_TIM2: Connect TIM2 pins to AF1
rajathr 0:34ee385f4d2d 536 * @arg GPIO_AF_TIM3: Connect TIM3 pins to AF2
rajathr 0:34ee385f4d2d 537 * @arg GPIO_AF_TIM4: Connect TIM4 pins to AF2
rajathr 0:34ee385f4d2d 538 * @arg GPIO_AF_TIM5: Connect TIM5 pins to AF2
rajathr 0:34ee385f4d2d 539 * @arg GPIO_AF_TIM8: Connect TIM8 pins to AF3
rajathr 0:34ee385f4d2d 540 * @arg GPIO_AF_TIM9: Connect TIM9 pins to AF3
rajathr 0:34ee385f4d2d 541 * @arg GPIO_AF_TIM10: Connect TIM10 pins to AF3
rajathr 0:34ee385f4d2d 542 * @arg GPIO_AF_TIM11: Connect TIM11 pins to AF3
rajathr 0:34ee385f4d2d 543 * @arg GPIO_AF_I2C1: Connect I2C1 pins to AF4
rajathr 0:34ee385f4d2d 544 * @arg GPIO_AF_I2C2: Connect I2C2 pins to AF4
rajathr 0:34ee385f4d2d 545 * @arg GPIO_AF_I2C3: Connect I2C3 pins to AF4
rajathr 0:34ee385f4d2d 546 * @arg GPIO_AF_SPI1: Connect SPI1 pins to AF5
rajathr 0:34ee385f4d2d 547 * @arg GPIO_AF_SPI2: Connect SPI2/I2S2 pins to AF5
rajathr 0:34ee385f4d2d 548 * @arg GPIO_AF_SPI4: Connect SPI4 pins to AF5
rajathr 0:34ee385f4d2d 549 * @arg GPIO_AF_SPI5: Connect SPI5 pins to AF5
rajathr 0:34ee385f4d2d 550 * @arg GPIO_AF_SPI6: Connect SPI6 pins to AF5
rajathr 0:34ee385f4d2d 551 * @arg GPIO_AF_SAI1: Connect SAI1 pins to AF6 for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 552 * @arg GPIO_AF_SPI3: Connect SPI3/I2S3 pins to AF6
rajathr 0:34ee385f4d2d 553 * @arg GPIO_AF_I2S3ext: Connect I2S3ext pins to AF7
rajathr 0:34ee385f4d2d 554 * @arg GPIO_AF_USART1: Connect USART1 pins to AF7
rajathr 0:34ee385f4d2d 555 * @arg GPIO_AF_USART2: Connect USART2 pins to AF7
rajathr 0:34ee385f4d2d 556 * @arg GPIO_AF_USART3: Connect USART3 pins to AF7
rajathr 0:34ee385f4d2d 557 * @arg GPIO_AF_UART4: Connect UART4 pins to AF8
rajathr 0:34ee385f4d2d 558 * @arg GPIO_AF_UART5: Connect UART5 pins to AF8
rajathr 0:34ee385f4d2d 559 * @arg GPIO_AF_USART6: Connect USART6 pins to AF8
rajathr 0:34ee385f4d2d 560 * @arg GPIO_AF_UART7: Connect UART7 pins to AF8
rajathr 0:34ee385f4d2d 561 * @arg GPIO_AF_UART8: Connect UART8 pins to AF8
rajathr 0:34ee385f4d2d 562 * @arg GPIO_AF_CAN1: Connect CAN1 pins to AF9
rajathr 0:34ee385f4d2d 563 * @arg GPIO_AF_CAN2: Connect CAN2 pins to AF9
rajathr 0:34ee385f4d2d 564 * @arg GPIO_AF_TIM12: Connect TIM12 pins to AF9
rajathr 0:34ee385f4d2d 565 * @arg GPIO_AF_TIM13: Connect TIM13 pins to AF9
rajathr 0:34ee385f4d2d 566 * @arg GPIO_AF_TIM14: Connect TIM14 pins to AF9
rajathr 0:34ee385f4d2d 567 * @arg GPIO_AF_OTG_FS: Connect OTG_FS pins to AF10
rajathr 0:34ee385f4d2d 568 * @arg GPIO_AF_OTG_HS: Connect OTG_HS pins to AF10
rajathr 0:34ee385f4d2d 569 * @arg GPIO_AF_ETH: Connect ETHERNET pins to AF11
rajathr 0:34ee385f4d2d 570 * @arg GPIO_AF_FSMC: Connect FSMC pins to AF12
rajathr 0:34ee385f4d2d 571 * @arg GPIO_AF_FMC: Connect FMC pins to AF12 for STM32F42xxx/43xxx devices.
rajathr 0:34ee385f4d2d 572 * @arg GPIO_AF_OTG_HS_FS: Connect OTG HS (configured in FS) pins to AF12
rajathr 0:34ee385f4d2d 573 * @arg GPIO_AF_SDIO: Connect SDIO pins to AF12
rajathr 0:34ee385f4d2d 574 * @arg GPIO_AF_DCMI: Connect DCMI pins to AF13
rajathr 0:34ee385f4d2d 575 * @arg GPIO_AF_LTDC: Connect LTDC pins to AF14 for STM32F429xx/439xx devices.
rajathr 0:34ee385f4d2d 576 * @arg GPIO_AF_EVENTOUT: Connect EVENTOUT pins to AF15
rajathr 0:34ee385f4d2d 577 * @retval None
rajathr 0:34ee385f4d2d 578 */
rajathr 0:34ee385f4d2d 579 void GPIO_PinAFConfig_mort(GPIO_TypeDef_mort* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
rajathr 0:34ee385f4d2d 580 {
rajathr 0:34ee385f4d2d 581 uint32_t temp = 0x00;
rajathr 0:34ee385f4d2d 582 uint32_t temp_2 = 0x00;
rajathr 0:34ee385f4d2d 583
rajathr 0:34ee385f4d2d 584 /* Check the parameters */
rajathr 0:34ee385f4d2d 585 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
rajathr 0:34ee385f4d2d 586 assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
rajathr 0:34ee385f4d2d 587 assert_param(IS_GPIO_AF(GPIO_AF));
rajathr 0:34ee385f4d2d 588
rajathr 0:34ee385f4d2d 589 temp = ((uint32_t)(GPIO_AF) << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4)) ;
rajathr 0:34ee385f4d2d 590 GPIOx->AFR[GPIO_PinSource >> 0x03] &= ~((uint32_t)0xF << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4)) ;
rajathr 0:34ee385f4d2d 591 temp_2 = GPIOx->AFR[GPIO_PinSource >> 0x03] | temp;
rajathr 0:34ee385f4d2d 592 GPIOx->AFR[GPIO_PinSource >> 0x03] = temp_2;
rajathr 0:34ee385f4d2d 593 }
rajathr 0:34ee385f4d2d 594
rajathr 0:34ee385f4d2d 595 /**
rajathr 0:34ee385f4d2d 596 * @}
rajathr 0:34ee385f4d2d 597 */
rajathr 0:34ee385f4d2d 598
rajathr 0:34ee385f4d2d 599 /**
rajathr 0:34ee385f4d2d 600 * @}
rajathr 0:34ee385f4d2d 601 */
rajathr 0:34ee385f4d2d 602
rajathr 0:34ee385f4d2d 603 /**
rajathr 0:34ee385f4d2d 604 * @}
rajathr 0:34ee385f4d2d 605 */
rajathr 0:34ee385f4d2d 606
rajathr 0:34ee385f4d2d 607 /**
rajathr 0:34ee385f4d2d 608 * @}
rajathr 0:34ee385f4d2d 609 */
rajathr 0:34ee385f4d2d 610
rajathr 0:34ee385f4d2d 611 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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