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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pinmap.c@135:067cc8ba23da, 2014-03-25 (annotated)
- Committer:
- mbed_official
- Date:
- Tue Mar 25 10:15:07 2014 +0000
- Revision:
- 135:067cc8ba23da
- Parent:
- 125:23cc3068a9e4
- Child:
- 145:cfacfb0a9e19
Synchronized with git revision 11bc6fdd038cd58284639ec6ff158b57e4b4bf68
Full URL: https://github.com/mbedmicro/mbed/commit/11bc6fdd038cd58284639ec6ff158b57e4b4bf68/
[NUCLEO_F302R8] Improvements in clock configuration, spi default pins, code formatting
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 125:23cc3068a9e4 | 1 | /* mbed Microcontroller Library |
| mbed_official | 125:23cc3068a9e4 | 2 | ******************************************************************************* |
| mbed_official | 125:23cc3068a9e4 | 3 | * Copyright (c) 2014, STMicroelectronics |
| mbed_official | 125:23cc3068a9e4 | 4 | * All rights reserved. |
| mbed_official | 125:23cc3068a9e4 | 5 | * |
| mbed_official | 125:23cc3068a9e4 | 6 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 125:23cc3068a9e4 | 7 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 125:23cc3068a9e4 | 8 | * |
| mbed_official | 125:23cc3068a9e4 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 125:23cc3068a9e4 | 10 | * this list of conditions and the following disclaimer. |
| mbed_official | 125:23cc3068a9e4 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 125:23cc3068a9e4 | 12 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 125:23cc3068a9e4 | 13 | * and/or other materials provided with the distribution. |
| mbed_official | 125:23cc3068a9e4 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 125:23cc3068a9e4 | 15 | * may be used to endorse or promote products derived from this software |
| mbed_official | 125:23cc3068a9e4 | 16 | * without specific prior written permission. |
| mbed_official | 125:23cc3068a9e4 | 17 | * |
| mbed_official | 125:23cc3068a9e4 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 125:23cc3068a9e4 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 125:23cc3068a9e4 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 125:23cc3068a9e4 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 125:23cc3068a9e4 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 125:23cc3068a9e4 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 125:23cc3068a9e4 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 125:23cc3068a9e4 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 125:23cc3068a9e4 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 125:23cc3068a9e4 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 125:23cc3068a9e4 | 28 | ******************************************************************************* |
| mbed_official | 125:23cc3068a9e4 | 29 | */ |
| mbed_official | 125:23cc3068a9e4 | 30 | #include "pinmap.h" |
| mbed_official | 125:23cc3068a9e4 | 31 | #include "error.h" |
| mbed_official | 125:23cc3068a9e4 | 32 | |
| mbed_official | 125:23cc3068a9e4 | 33 | // Enable GPIO clock and return GPIO base address |
| mbed_official | 125:23cc3068a9e4 | 34 | uint32_t Set_GPIO_Clock(uint32_t port_idx) { |
| mbed_official | 125:23cc3068a9e4 | 35 | uint32_t gpio_add; |
| mbed_official | 125:23cc3068a9e4 | 36 | switch (port_idx) { |
| mbed_official | 125:23cc3068a9e4 | 37 | case PortA: |
| mbed_official | 125:23cc3068a9e4 | 38 | gpio_add = GPIOA_BASE; |
| mbed_official | 125:23cc3068a9e4 | 39 | RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); |
| mbed_official | 125:23cc3068a9e4 | 40 | break; |
| mbed_official | 125:23cc3068a9e4 | 41 | case PortB: |
| mbed_official | 125:23cc3068a9e4 | 42 | gpio_add = GPIOB_BASE; |
| mbed_official | 125:23cc3068a9e4 | 43 | RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE); |
| mbed_official | 125:23cc3068a9e4 | 44 | break; |
| mbed_official | 125:23cc3068a9e4 | 45 | case PortC: |
| mbed_official | 125:23cc3068a9e4 | 46 | gpio_add = GPIOC_BASE; |
| mbed_official | 125:23cc3068a9e4 | 47 | RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE); |
| mbed_official | 125:23cc3068a9e4 | 48 | break; |
| mbed_official | 125:23cc3068a9e4 | 49 | case PortD: |
| mbed_official | 125:23cc3068a9e4 | 50 | gpio_add = GPIOD_BASE; |
| mbed_official | 125:23cc3068a9e4 | 51 | RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE); |
| mbed_official | 125:23cc3068a9e4 | 52 | break; |
| mbed_official | 125:23cc3068a9e4 | 53 | case PortF: |
| mbed_official | 125:23cc3068a9e4 | 54 | gpio_add = GPIOF_BASE; |
| mbed_official | 125:23cc3068a9e4 | 55 | RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE); |
| mbed_official | 125:23cc3068a9e4 | 56 | break; |
| mbed_official | 125:23cc3068a9e4 | 57 | default: |
| mbed_official | 125:23cc3068a9e4 | 58 | gpio_add = 0; |
| mbed_official | 125:23cc3068a9e4 | 59 | error("Port number is not correct."); |
| mbed_official | 125:23cc3068a9e4 | 60 | break; |
| mbed_official | 125:23cc3068a9e4 | 61 | } |
| mbed_official | 125:23cc3068a9e4 | 62 | return gpio_add; |
| mbed_official | 125:23cc3068a9e4 | 63 | } |
| mbed_official | 125:23cc3068a9e4 | 64 | |
| mbed_official | 125:23cc3068a9e4 | 65 | /** |
| mbed_official | 125:23cc3068a9e4 | 66 | * Configure pin (mode, speed, output type and pull-up/pull-down) |
| mbed_official | 125:23cc3068a9e4 | 67 | */ |
| mbed_official | 125:23cc3068a9e4 | 68 | void pin_function(PinName pin, int data) { |
| mbed_official | 125:23cc3068a9e4 | 69 | if (pin == NC) return; |
| mbed_official | 125:23cc3068a9e4 | 70 | |
| mbed_official | 125:23cc3068a9e4 | 71 | // Get the pin informations |
| mbed_official | 125:23cc3068a9e4 | 72 | uint32_t mode = STM_PIN_MODE(data); |
| mbed_official | 125:23cc3068a9e4 | 73 | uint32_t otype = STM_PIN_OTYPE(data); |
| mbed_official | 125:23cc3068a9e4 | 74 | uint32_t pupd = STM_PIN_PUPD(data); |
| mbed_official | 125:23cc3068a9e4 | 75 | uint32_t afnum = STM_PIN_AFNUM(data); |
| mbed_official | 125:23cc3068a9e4 | 76 | |
| mbed_official | 125:23cc3068a9e4 | 77 | uint32_t port_index = STM_PORT(pin); |
| mbed_official | 125:23cc3068a9e4 | 78 | uint32_t pin_index = STM_PIN(pin); |
| mbed_official | 125:23cc3068a9e4 | 79 | |
| mbed_official | 125:23cc3068a9e4 | 80 | // Enable GPIO clock |
| mbed_official | 125:23cc3068a9e4 | 81 | uint32_t gpio_add = Set_GPIO_Clock(port_index); |
| mbed_official | 125:23cc3068a9e4 | 82 | GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; |
| mbed_official | 125:23cc3068a9e4 | 83 | |
| mbed_official | 125:23cc3068a9e4 | 84 | // Configure Alternate Function |
| mbed_official | 125:23cc3068a9e4 | 85 | // Warning: Must be done before the GPIO is initialized |
| mbed_official | 125:23cc3068a9e4 | 86 | if (afnum != 0xFF) { |
| mbed_official | 125:23cc3068a9e4 | 87 | GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum); |
| mbed_official | 125:23cc3068a9e4 | 88 | } |
| mbed_official | 135:067cc8ba23da | 89 | |
| mbed_official | 125:23cc3068a9e4 | 90 | // Configure GPIO |
| mbed_official | 125:23cc3068a9e4 | 91 | GPIO_InitTypeDef GPIO_InitStructure; |
| mbed_official | 125:23cc3068a9e4 | 92 | GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index); |
| mbed_official | 125:23cc3068a9e4 | 93 | GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode; |
| mbed_official | 125:23cc3068a9e4 | 94 | GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3; |
| mbed_official | 125:23cc3068a9e4 | 95 | GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype; |
| mbed_official | 125:23cc3068a9e4 | 96 | GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd; |
| mbed_official | 125:23cc3068a9e4 | 97 | GPIO_Init(gpio, &GPIO_InitStructure); |
| mbed_official | 135:067cc8ba23da | 98 | |
| mbed_official | 125:23cc3068a9e4 | 99 | // [TODO] Disconnect JTAG-DP + SW-DP signals. |
| mbed_official | 125:23cc3068a9e4 | 100 | // Warning: Need to reconnect under reset |
| mbed_official | 125:23cc3068a9e4 | 101 | //if ((pin == PA_13) || (pin == PA_14)) { |
| mbed_official | 125:23cc3068a9e4 | 102 | // |
| mbed_official | 125:23cc3068a9e4 | 103 | //} |
| mbed_official | 125:23cc3068a9e4 | 104 | //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) { |
| mbed_official | 125:23cc3068a9e4 | 105 | // |
| mbed_official | 135:067cc8ba23da | 106 | //} |
| mbed_official | 125:23cc3068a9e4 | 107 | } |
| mbed_official | 125:23cc3068a9e4 | 108 | |
| mbed_official | 125:23cc3068a9e4 | 109 | /** |
| mbed_official | 125:23cc3068a9e4 | 110 | * Configure pin pull-up/pull-down |
| mbed_official | 125:23cc3068a9e4 | 111 | */ |
| mbed_official | 125:23cc3068a9e4 | 112 | void pin_mode(PinName pin, PinMode mode) { |
| mbed_official | 125:23cc3068a9e4 | 113 | if (pin == NC) return; |
| mbed_official | 125:23cc3068a9e4 | 114 | |
| mbed_official | 125:23cc3068a9e4 | 115 | uint32_t port_index = STM_PORT(pin); |
| mbed_official | 125:23cc3068a9e4 | 116 | uint32_t pin_index = STM_PIN(pin); |
| mbed_official | 125:23cc3068a9e4 | 117 | |
| mbed_official | 125:23cc3068a9e4 | 118 | // Enable GPIO clock |
| mbed_official | 125:23cc3068a9e4 | 119 | uint32_t gpio_add = Set_GPIO_Clock(port_index); |
| mbed_official | 125:23cc3068a9e4 | 120 | GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; |
| mbed_official | 125:23cc3068a9e4 | 121 | |
| mbed_official | 125:23cc3068a9e4 | 122 | // Configure pull-up/pull-down resistors |
| mbed_official | 125:23cc3068a9e4 | 123 | uint32_t pupd = (uint32_t)mode; |
| mbed_official | 125:23cc3068a9e4 | 124 | if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down |
| mbed_official | 125:23cc3068a9e4 | 125 | gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2))); |
| mbed_official | 125:23cc3068a9e4 | 126 | gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2)); |
| mbed_official | 135:067cc8ba23da | 127 | |
| mbed_official | 125:23cc3068a9e4 | 128 | } |
