diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F3XX/pinmap.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F3XX/pinmap.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F3XX/pinmap.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F3XX/pinmap.c new file mode 100644 index 0000000000..59618c5512 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F3XX/pinmap.c @@ -0,0 +1,135 @@ +/* mbed Microcontroller Library + ******************************************************************************* + * Copyright (c) 2014, STMicroelectronics + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************* + */ +#include "mbed_assert.h" +#include "pinmap.h" +#include "PortNames.h" +#include "mbed_error.h" + +// Enable GPIO clock and return GPIO base address +uint32_t Set_GPIO_Clock(uint32_t port_idx) { + uint32_t gpio_add; + switch (port_idx) { + case PortA: + gpio_add = GPIOA_BASE; + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); + break; + case PortB: + gpio_add = GPIOB_BASE; + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE); + break; + case PortC: + gpio_add = GPIOC_BASE; + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE); + break; + case PortD: + gpio_add = GPIOD_BASE; + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE); + break; + case PortE: + gpio_add = GPIOE_BASE; + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOE, ENABLE); + break; + case PortF: + gpio_add = GPIOF_BASE; + RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE); + break; + default: + gpio_add = 0; + error("Port number is not correct."); + break; + } + return gpio_add; +} + +/** + * Configure pin (mode, speed, output type and pull-up/pull-down) + */ +void pin_function(PinName pin, int data) { + MBED_ASSERT(pin != (PinName)NC); + + // Get the pin informations + uint32_t mode = STM_PIN_MODE(data); + uint32_t otype = STM_PIN_OTYPE(data); + uint32_t pupd = STM_PIN_PUPD(data); + uint32_t afnum = STM_PIN_AFNUM(data); + + uint32_t port_index = STM_PORT(pin); + uint32_t pin_index = STM_PIN(pin); + + // Enable GPIO clock + uint32_t gpio_add = Set_GPIO_Clock(port_index); + GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; + + // Configure Alternate Function + // Warning: Must be done before the GPIO is initialized + if (afnum != 0xFF) { + GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum); + } + + // Configure GPIO + GPIO_InitTypeDef GPIO_InitStructure; + GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index); + GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3; + GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype; + GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd; + GPIO_Init(gpio, &GPIO_InitStructure); + + // [TODO] Disconnect JTAG-DP + SW-DP signals. + // Warning: Need to reconnect under reset + //if ((pin == PA_13) || (pin == PA_14)) { + // + //} + //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) { + // + //} +} + +/** + * Configure pin pull-up/pull-down + */ +void pin_mode(PinName pin, PinMode mode) { + MBED_ASSERT(pin != (PinName)NC); + + uint32_t port_index = STM_PORT(pin); + uint32_t pin_index = STM_PIN(pin); + + // Enable GPIO clock + uint32_t gpio_add = Set_GPIO_Clock(port_index); + GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; + + // Configure pull-up/pull-down resistors + uint32_t pupd = (uint32_t)mode; + if (pupd > 2) + pupd = 0; // Open-drain = No pull-up/No pull-down + gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2))); + gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2)); + +} |