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Diffstat (limited to 'Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c')
| -rw-r--r-- | Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c | 541 |
1 files changed, 0 insertions, 541 deletions
diff --git a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c b/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c deleted file mode 100644 index 8b0012d..0000000 --- a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_gpio.c +++ /dev/null @@ -1,541 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_gpio.c - * @author MCD Application Team - * @version V1.3.0 - * @date 16-January-2014 - * @brief This file provides firmware functions to manage the following - * functionalities of the GPIO peripheral: - * + Initialization and Configuration functions - * + GPIO Read and Write functions - * + GPIO Alternate functions configuration functions - * - * @verbatim - * - * - =========================================================================== - ##### How to use this driver ##### - =========================================================================== - [..] - (#) Enable the GPIO AHB clock using RCC_AHBPeriphClockCmd() - (#) Configure the GPIO pin(s) using GPIO_Init() - Four possible configuration are available for each pin: - (++) Input: Floating, Pull-up, Pull-down. - (++) Output: Push-Pull (Pull-up, Pull-down or no Pull) - Open Drain (Pull-up, Pull-down or no Pull). - In output mode, the speed is configurable: Low, Medium, Fast or High. - (++) Alternate Function: Push-Pull (Pull-up, Pull-down or no Pull) - Open Drain (Pull-up, Pull-down or no Pull). - (++) Analog: required mode when a pin is to be used as ADC channel, - DAC output or comparator input. - (#) Peripherals alternate function: - (++) For ADC, DAC and comparators, configure the desired pin in analog - mode using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AN - (++) For other peripherals (TIM, USART...): - (+++) Connect the pin to the desired peripherals' Alternate - Function (AF) using GPIO_PinAFConfig() function. For PortC, - PortD and PortF, no configuration is needed. - (+++) Configure the desired pin in alternate function mode using - GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF - (+++) Select the type, pull-up/pull-down and output speed via - GPIO_PuPd, GPIO_OType and GPIO_Speed members - (+++) Call GPIO_Init() function - (#) To get the level of a pin configured in input mode use GPIO_ReadInputDataBit() - (#) To set/reset the level of a pin configured in output mode use - GPIO_SetBits()/GPIO_ResetBits() - (#) During and just after reset, the alternate functions are not active and - the GPIO pins are configured in input floating mode (except JTAG pins). - (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as - general-purpose (PC14 and PC15, respectively) when the LSE oscillator - is off. The LSE has priority over the GPIO function. - (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as general-purpose - PD0 and PD1, respectively, when the HSE oscillator is off. The HSE has - priority over the GPIO function. - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2> - * - * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); - * You may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.st.com/software_license_agreement_liberty_v2 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f0xx_gpio.h" -#include "stm32f0xx_rcc.h" -#include "stm32f0xx_conf.h" - -/** @addtogroup STM32F0xx_StdPeriph_Driver - * @{ - */ - -/** @defgroup GPIO - * @brief GPIO driver modules - * @{ - */ - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/* Private functions ---------------------------------------------------------*/ - -/** @defgroup GPIO_Private_Functions - * @{ - */ - -/** @defgroup GPIO_Group1 Initialization and Configuration - * @brief Initialization and Configuration - * -@verbatim - =============================================================================== - ##### Initialization and Configuration ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @brief Deinitializes the GPIOx peripheral registers to their default reset - * values. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @retval None - */ -void GPIO_DeInit(GPIO_TypeDef* GPIOx) -{ - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - - if(GPIOx == GPIOA) - { - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, ENABLE); - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, DISABLE); - } - else if(GPIOx == GPIOB) - { - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, ENABLE); - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, DISABLE); - } - else if(GPIOx == GPIOC) - { - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, ENABLE); - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, DISABLE); - } - else if(GPIOx == GPIOD) - { - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, ENABLE); - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, DISABLE); - } - else if(GPIOx == GPIOE) - { - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, ENABLE); - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, DISABLE); - } - else - { - if(GPIOx == GPIOF) - { - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, ENABLE); - RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, DISABLE); - } - } -} - -/** - * @brief Initializes the GPIOx peripheral according to the specified - * parameters in the GPIO_InitStruct. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that contains - * the configuration information for the specified GPIO peripheral. - * @retval None - */ -void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct) -{ - uint32_t pinpos = 0x00, pos = 0x00 , currentpin = 0x00; - - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin)); - assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode)); - assert_param(IS_GPIO_PUPD(GPIO_InitStruct->GPIO_PuPd)); - - /*-------------------------- Configure the port pins -----------------------*/ - /*-- GPIO Mode Configuration --*/ - for (pinpos = 0x00; pinpos < 0x10; pinpos++) - { - pos = ((uint32_t)0x01) << pinpos; - - /* Get the port pins position */ - currentpin = (GPIO_InitStruct->GPIO_Pin) & pos; - - if (currentpin == pos) - { - if ((GPIO_InitStruct->GPIO_Mode == GPIO_Mode_OUT) || (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_AF)) - { - /* Check Speed mode parameters */ - assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed)); - - /* Speed mode configuration */ - GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (pinpos * 2)); - GPIOx->OSPEEDR |= ((uint32_t)(GPIO_InitStruct->GPIO_Speed) << (pinpos * 2)); - - /* Check Output mode parameters */ - assert_param(IS_GPIO_OTYPE(GPIO_InitStruct->GPIO_OType)); - - /* Output mode configuration */ - GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0) << ((uint16_t)pinpos)); - GPIOx->OTYPER |= (uint16_t)(((uint16_t)GPIO_InitStruct->GPIO_OType) << ((uint16_t)pinpos)); - } - - GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (pinpos * 2)); - - GPIOx->MODER |= (((uint32_t)GPIO_InitStruct->GPIO_Mode) << (pinpos * 2)); - - /* Pull-up Pull down resistor configuration */ - GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << ((uint16_t)pinpos * 2)); - GPIOx->PUPDR |= (((uint32_t)GPIO_InitStruct->GPIO_PuPd) << (pinpos * 2)); - } - } -} - -/** - * @brief Fills each GPIO_InitStruct member with its default value. - * @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure which will - * be initialized. - * @retval None - */ -void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct) -{ - /* Reset GPIO init structure parameters values */ - GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All; - GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN; - GPIO_InitStruct->GPIO_Speed = GPIO_Speed_Level_2; - GPIO_InitStruct->GPIO_OType = GPIO_OType_PP; - GPIO_InitStruct->GPIO_PuPd = GPIO_PuPd_NOPULL; -} - -/** - * @brief Locks GPIO Pins configuration registers. - * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR, - * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH. - * @note The configuration of the locked GPIO pins can no longer be modified - * until the next device reset. - * @param GPIOx: where x can be (A or B) to select the GPIO peripheral. - * @param GPIO_Pin: specifies the port bit to be written. - * This parameter can be any combination of GPIO_Pin_x where x can be (0..15). - * @retval None - */ -void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - __IO uint32_t tmp = 0x00010000; - - /* Check the parameters */ - assert_param(IS_GPIO_LIST_PERIPH(GPIOx)); - assert_param(IS_GPIO_PIN(GPIO_Pin)); - - tmp |= GPIO_Pin; - /* Set LCKK bit */ - GPIOx->LCKR = tmp; - /* Reset LCKK bit */ - GPIOx->LCKR = GPIO_Pin; - /* Set LCKK bit */ - GPIOx->LCKR = tmp; - /* Read LCKK bit */ - tmp = GPIOx->LCKR; - /* Read LCKK bit */ - tmp = GPIOx->LCKR; -} - -/** - * @} - */ - -/** @defgroup GPIO_Group2 GPIO Read and Write - * @brief GPIO Read and Write - * -@verbatim - =============================================================================== - ##### GPIO Read and Write ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @brief Reads the specified input port pin. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @param GPIO_Pin: specifies the port bit to read. - * @note This parameter can be GPIO_Pin_x where x can be: - * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF. - * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF. - * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF. - * @retval The input port pin value. - */ -uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - uint8_t bitstatus = 0x00; - - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - assert_param(IS_GET_GPIO_PIN(GPIO_Pin)); - - if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET) - { - bitstatus = (uint8_t)Bit_SET; - } - else - { - bitstatus = (uint8_t)Bit_RESET; - } - return bitstatus; -} - -/** - * @brief Reads the specified input port pin. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @retval The input port pin value. - */ -uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx) -{ - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - - return ((uint16_t)GPIOx->IDR); -} - -/** - * @brief Reads the specified output data port bit. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @param GPIO_Pin: Specifies the port bit to read. - * @note This parameter can be GPIO_Pin_x where x can be: - * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF. - * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF. - * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF. - * @retval The output port pin value. - */ -uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - uint8_t bitstatus = 0x00; - - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - assert_param(IS_GET_GPIO_PIN(GPIO_Pin)); - - if ((GPIOx->ODR & GPIO_Pin) != (uint32_t)Bit_RESET) - { - bitstatus = (uint8_t)Bit_SET; - } - else - { - bitstatus = (uint8_t)Bit_RESET; - } - return bitstatus; -} - -/** - * @brief Reads the specified GPIO output data port. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @retval GPIO output data port value. - */ -uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx) -{ - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - - return ((uint16_t)GPIOx->ODR); -} - -/** - * @brief Sets the selected data port bits. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @param GPIO_Pin: specifies the port bits to be written. - * @note This parameter can be GPIO_Pin_x where x can be: - * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF. - * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF. - * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF. - * @retval None - */ -void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - assert_param(IS_GPIO_PIN(GPIO_Pin)); - - GPIOx->BSRR = GPIO_Pin; -} - -/** - * @brief Clears the selected data port bits. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @param GPIO_Pin: specifies the port bits to be written. - * @note This parameter can be GPIO_Pin_x where x can be: - * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF. - * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF. - * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF. - * @retval None - */ -void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) -{ - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - assert_param(IS_GPIO_PIN(GPIO_Pin)); - - GPIOx->BRR = GPIO_Pin; -} - -/** - * @brief Sets or clears the selected data port bit. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @param GPIO_Pin: specifies the port bit to be written. - * @param BitVal: specifies the value to be written to the selected bit. - * This parameter can be one of the BitAction enumeration values: - * @arg Bit_RESET: to clear the port pin - * @arg Bit_SET: to set the port pin - * @note This parameter can be GPIO_Pin_x where x can be: - * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF. - * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF. - * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF. - * @retval None - */ -void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal) -{ - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - assert_param(IS_GET_GPIO_PIN(GPIO_Pin)); - assert_param(IS_GPIO_BIT_ACTION(BitVal)); - - if (BitVal != Bit_RESET) - { - GPIOx->BSRR = GPIO_Pin; - } - else - { - GPIOx->BRR = GPIO_Pin ; - } -} - -/** - * @brief Writes data to the specified GPIO data port. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOE is available only for STM32F072. - * @note GPIOD is not available for STM32F031. - * @param PortVal: specifies the value to be written to the port output data register. - * @retval None - */ -void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal) -{ - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - - GPIOx->ODR = PortVal; -} - -/** - * @} - */ - -/** @defgroup GPIO_Group3 GPIO Alternate functions configuration functions - * @brief GPIO Alternate functions configuration functions - * -@verbatim - =============================================================================== - ##### GPIO Alternate functions configuration functions ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @brief Writes data to the specified GPIO data port. - * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral. - * @note GPIOC, GPIOD, GPIOE and GPIOF are available only for STM32F072. - * @param GPIO_PinSource: specifies the pin for the Alternate function. - * This parameter can be GPIO_PinSourcex where x can be (0..15) for GPIOA, GPIOB, GPIOD, GPIOE - * and (0..12) for GPIOC and (0, 2..5, 9..10) for GPIOF. - * @param GPIO_AF: selects the pin to used as Alternate function. - * This parameter can be one of the following value: - * @arg GPIO_AF_0: WKUP, EVENTOUT, TIM15, SPI1, TIM17, MCO, SWDAT, SWCLK, - * TIM14, BOOT, USART1, CEC, IR_OUT, SPI2, TIM3, USART4, - * CAN, USART2, CRS, TIM16, TIM1, TS - * @arg GPIO_AF_1: USART2, CEC, TIM3, USART1, USART2, EVENTOUT, I2C1, - * I2C2, TIM15, SPI2, USART3, TS, SPI1 - * @arg GPIO_AF_2: TIM2, TIM1, EVENTOUT, TIM16, TIM17, USB - * @arg GPIO_AF_3: TS, I2C1, TIM15, EVENTOUT - * @arg GPIO_AF_4: TIM14, USART4, USART3, CRS, CAN - * @arg GPIO_AF_5: TIM16, TIM17, TIM15, SPI2, I2C2 - * @arg GPIO_AF_6: EVENTOUT - * @arg GPIO_AF_7: COMP1 OUT, COMP2 OUT - * @note The pin should already been configured in Alternate Function mode(AF) - * using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF - * @note Refer to the Alternate function mapping table in the device datasheet - * for the detailed mapping of the system and peripherals'alternate - * function I/O pins. - * @retval None - */ -void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF) -{ - uint32_t temp = 0x00; - uint32_t temp_2 = 0x00; - - /* Check the parameters */ - assert_param(IS_GPIO_ALL_PERIPH(GPIOx)); - assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource)); - assert_param(IS_GPIO_AF(GPIO_AF)); - - temp = ((uint32_t)(GPIO_AF) << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4)); - GPIOx->AFR[GPIO_PinSource >> 0x03] &= ~((uint32_t)0xF << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4)); - temp_2 = GPIOx->AFR[GPIO_PinSource >> 0x03] | temp; - GPIOx->AFR[GPIO_PinSource >> 0x03] = temp_2; -} - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |