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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_STM/TARGET_STM32F0/gpio_api.c@630:825f75ca301e, 2015-09-28 (annotated)
- Committer:
- mbed_official
- Date:
- Mon Sep 28 10:45:10 2015 +0100
- Revision:
- 630:825f75ca301e
- Parent:
- 469:fc4922e0c183
Synchronized with git revision 54fbe4144faf309c37205a5d39fa665daa919f10
Full URL: https://github.com/mbedmicro/mbed/commit/54fbe4144faf309c37205a5d39fa665daa919f10/
NUCLEO_F031K6 : Add new target
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 441:d2c15dda23c1 | 1 | /* mbed Microcontroller Library |
| mbed_official | 441:d2c15dda23c1 | 2 | ******************************************************************************* |
| mbed_official | 630:825f75ca301e | 3 | * Copyright (c) 2015, STMicroelectronics |
| mbed_official | 441:d2c15dda23c1 | 4 | * All rights reserved. |
| mbed_official | 441:d2c15dda23c1 | 5 | * |
| mbed_official | 441:d2c15dda23c1 | 6 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 441:d2c15dda23c1 | 7 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 441:d2c15dda23c1 | 8 | * |
| mbed_official | 441:d2c15dda23c1 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 441:d2c15dda23c1 | 10 | * this list of conditions and the following disclaimer. |
| mbed_official | 441:d2c15dda23c1 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 441:d2c15dda23c1 | 12 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 441:d2c15dda23c1 | 13 | * and/or other materials provided with the distribution. |
| mbed_official | 441:d2c15dda23c1 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 441:d2c15dda23c1 | 15 | * may be used to endorse or promote products derived from this software |
| mbed_official | 441:d2c15dda23c1 | 16 | * without specific prior written permission. |
| mbed_official | 441:d2c15dda23c1 | 17 | * |
| mbed_official | 441:d2c15dda23c1 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 441:d2c15dda23c1 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 441:d2c15dda23c1 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 441:d2c15dda23c1 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 441:d2c15dda23c1 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 441:d2c15dda23c1 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 441:d2c15dda23c1 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 441:d2c15dda23c1 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 441:d2c15dda23c1 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 441:d2c15dda23c1 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 441:d2c15dda23c1 | 28 | ******************************************************************************* |
| mbed_official | 441:d2c15dda23c1 | 29 | */ |
| mbed_official | 441:d2c15dda23c1 | 30 | #include "mbed_assert.h" |
| mbed_official | 441:d2c15dda23c1 | 31 | #include "gpio_api.h" |
| mbed_official | 441:d2c15dda23c1 | 32 | #include "pinmap.h" |
| mbed_official | 441:d2c15dda23c1 | 33 | #include "mbed_error.h" |
| mbed_official | 441:d2c15dda23c1 | 34 | |
| mbed_official | 441:d2c15dda23c1 | 35 | extern uint32_t Set_GPIO_Clock(uint32_t port_idx); |
| mbed_official | 441:d2c15dda23c1 | 36 | |
| mbed_official | 630:825f75ca301e | 37 | uint32_t gpio_set(PinName pin) { |
| mbed_official | 441:d2c15dda23c1 | 38 | MBED_ASSERT(pin != (PinName)NC); |
| mbed_official | 441:d2c15dda23c1 | 39 | |
| mbed_official | 441:d2c15dda23c1 | 40 | pin_function(pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
| mbed_official | 441:d2c15dda23c1 | 41 | |
| mbed_official | 441:d2c15dda23c1 | 42 | return (uint32_t)(1 << ((uint32_t)pin & 0xF)); // Return the pin mask |
| mbed_official | 441:d2c15dda23c1 | 43 | } |
| mbed_official | 441:d2c15dda23c1 | 44 | |
| mbed_official | 630:825f75ca301e | 45 | void gpio_init(gpio_t *obj, PinName pin) { |
| mbed_official | 441:d2c15dda23c1 | 46 | obj->pin = pin; |
| mbed_official | 441:d2c15dda23c1 | 47 | if (pin == (PinName)NC) { |
| mbed_official | 441:d2c15dda23c1 | 48 | return; |
| mbed_official | 441:d2c15dda23c1 | 49 | } |
| mbed_official | 441:d2c15dda23c1 | 50 | |
| mbed_official | 441:d2c15dda23c1 | 51 | uint32_t port_index = STM_PORT(pin); |
| mbed_official | 441:d2c15dda23c1 | 52 | |
| mbed_official | 441:d2c15dda23c1 | 53 | // Enable GPIO clock |
| mbed_official | 441:d2c15dda23c1 | 54 | uint32_t gpio_add = Set_GPIO_Clock(port_index); |
| mbed_official | 441:d2c15dda23c1 | 55 | GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; |
| mbed_official | 441:d2c15dda23c1 | 56 | |
| mbed_official | 441:d2c15dda23c1 | 57 | // Fill GPIO object structure for future use |
| mbed_official | 441:d2c15dda23c1 | 58 | obj->mask = gpio_set(pin); |
| mbed_official | 441:d2c15dda23c1 | 59 | obj->reg_in = &gpio->IDR; |
| mbed_official | 441:d2c15dda23c1 | 60 | obj->reg_set = &gpio->BSRR; |
| mbed_official | 441:d2c15dda23c1 | 61 | obj->reg_clr = &gpio->BRR; |
| mbed_official | 441:d2c15dda23c1 | 62 | } |
| mbed_official | 441:d2c15dda23c1 | 63 | |
| mbed_official | 630:825f75ca301e | 64 | void gpio_mode(gpio_t *obj, PinMode mode) { |
| mbed_official | 441:d2c15dda23c1 | 65 | pin_mode(obj->pin, mode); |
| mbed_official | 441:d2c15dda23c1 | 66 | } |
| mbed_official | 441:d2c15dda23c1 | 67 | |
| mbed_official | 630:825f75ca301e | 68 | void gpio_dir(gpio_t *obj, PinDirection direction) { |
| mbed_official | 441:d2c15dda23c1 | 69 | MBED_ASSERT(obj->pin != (PinName)NC); |
| mbed_official | 441:d2c15dda23c1 | 70 | if (direction == PIN_OUTPUT) { |
| mbed_official | 441:d2c15dda23c1 | 71 | pin_function(obj->pin, STM_PIN_DATA(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0)); |
| mbed_official | 441:d2c15dda23c1 | 72 | } else { // PIN_INPUT |
| mbed_official | 441:d2c15dda23c1 | 73 | pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
| mbed_official | 441:d2c15dda23c1 | 74 | } |
| mbed_official | 441:d2c15dda23c1 | 75 | } |
