mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/pinmap.c@80:66393a7b209d, 2014-01-30 (annotated)
- Committer:
- mbed_official
- Date:
- Thu Jan 30 12:15:05 2014 +0000
- Revision:
- 80:66393a7b209d
- Parent:
- 76:aeb1df146756
- Child:
- 84:f54042cbc282
Synchronized with git revision dba523f83fe09b7fce11fc1299dd1216e9776359
Full URL: https://github.com/mbedmicro/mbed/commit/dba523f83fe09b7fce11fc1299dd1216e9776359/
Update of I2C, SPI, SLEEP for NUCLEO_F103RB and L152RE
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 52:a51c77007319 | 1 | /* mbed Microcontroller Library |
mbed_official | 70:c1fbde68b492 | 2 | ******************************************************************************* |
mbed_official | 70:c1fbde68b492 | 3 | * Copyright (c) 2014, STMicroelectronics |
mbed_official | 70:c1fbde68b492 | 4 | * All rights reserved. |
mbed_official | 52:a51c77007319 | 5 | * |
mbed_official | 70:c1fbde68b492 | 6 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 70:c1fbde68b492 | 7 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 52:a51c77007319 | 8 | * |
mbed_official | 70:c1fbde68b492 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 70:c1fbde68b492 | 10 | * this list of conditions and the following disclaimer. |
mbed_official | 70:c1fbde68b492 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 70:c1fbde68b492 | 12 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 70:c1fbde68b492 | 13 | * and/or other materials provided with the distribution. |
mbed_official | 70:c1fbde68b492 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 70:c1fbde68b492 | 15 | * may be used to endorse or promote products derived from this software |
mbed_official | 70:c1fbde68b492 | 16 | * without specific prior written permission. |
mbed_official | 52:a51c77007319 | 17 | * |
mbed_official | 70:c1fbde68b492 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 70:c1fbde68b492 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 70:c1fbde68b492 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 70:c1fbde68b492 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 70:c1fbde68b492 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 70:c1fbde68b492 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 70:c1fbde68b492 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 70:c1fbde68b492 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 70:c1fbde68b492 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 70:c1fbde68b492 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 70:c1fbde68b492 | 28 | ******************************************************************************* |
mbed_official | 52:a51c77007319 | 29 | */ |
mbed_official | 52:a51c77007319 | 30 | #include "pinmap.h" |
mbed_official | 52:a51c77007319 | 31 | #include "error.h" |
mbed_official | 52:a51c77007319 | 32 | |
mbed_official | 52:a51c77007319 | 33 | // Alternate-function mapping |
mbed_official | 52:a51c77007319 | 34 | static const uint32_t AF_mapping[] = { |
mbed_official | 58:3b55b7a41411 | 35 | 0, // 0 = No AF |
mbed_official | 58:3b55b7a41411 | 36 | GPIO_Remap_SPI1, // 1 |
mbed_official | 58:3b55b7a41411 | 37 | GPIO_Remap_I2C1, // 2 |
mbed_official | 58:3b55b7a41411 | 38 | GPIO_Remap_USART1, // 3 |
mbed_official | 58:3b55b7a41411 | 39 | GPIO_Remap_USART2, // 4 |
mbed_official | 58:3b55b7a41411 | 40 | GPIO_FullRemap_TIM2, // 5 |
mbed_official | 58:3b55b7a41411 | 41 | GPIO_FullRemap_TIM3, // 6 |
mbed_official | 58:3b55b7a41411 | 42 | GPIO_PartialRemap_TIM3, // 7 |
mbed_official | 58:3b55b7a41411 | 43 | GPIO_Remap_I2C1 // 8 |
mbed_official | 52:a51c77007319 | 44 | }; |
mbed_official | 52:a51c77007319 | 45 | |
mbed_official | 76:aeb1df146756 | 46 | // Not an API function |
mbed_official | 76:aeb1df146756 | 47 | // Enable GPIO clock and return GPIO base address |
mbed_official | 76:aeb1df146756 | 48 | uint32_t Set_GPIO_Clock(uint32_t port_idx) { |
mbed_official | 76:aeb1df146756 | 49 | uint32_t gpio_add = 0; |
mbed_official | 76:aeb1df146756 | 50 | switch (port_idx) { |
mbed_official | 76:aeb1df146756 | 51 | case PortA: |
mbed_official | 76:aeb1df146756 | 52 | gpio_add = GPIOA_BASE; |
mbed_official | 76:aeb1df146756 | 53 | RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); |
mbed_official | 76:aeb1df146756 | 54 | break; |
mbed_official | 76:aeb1df146756 | 55 | case PortB: |
mbed_official | 76:aeb1df146756 | 56 | gpio_add = GPIOB_BASE; |
mbed_official | 76:aeb1df146756 | 57 | RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); |
mbed_official | 76:aeb1df146756 | 58 | break; |
mbed_official | 76:aeb1df146756 | 59 | case PortC: |
mbed_official | 76:aeb1df146756 | 60 | gpio_add = GPIOC_BASE; |
mbed_official | 76:aeb1df146756 | 61 | RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); |
mbed_official | 76:aeb1df146756 | 62 | break; |
mbed_official | 76:aeb1df146756 | 63 | case PortD: |
mbed_official | 76:aeb1df146756 | 64 | gpio_add = GPIOD_BASE; |
mbed_official | 76:aeb1df146756 | 65 | RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE); |
mbed_official | 76:aeb1df146756 | 66 | break; |
mbed_official | 76:aeb1df146756 | 67 | default: |
mbed_official | 76:aeb1df146756 | 68 | error("Port number is not correct."); |
mbed_official | 76:aeb1df146756 | 69 | break; |
mbed_official | 76:aeb1df146756 | 70 | } |
mbed_official | 76:aeb1df146756 | 71 | return gpio_add; |
mbed_official | 76:aeb1df146756 | 72 | } |
mbed_official | 76:aeb1df146756 | 73 | |
mbed_official | 52:a51c77007319 | 74 | /** |
mbed_official | 76:aeb1df146756 | 75 | * Configure pin (input, output, alternate function or analog) + output speed + AF |
mbed_official | 52:a51c77007319 | 76 | */ |
mbed_official | 52:a51c77007319 | 77 | void pin_function(PinName pin, int data) { |
mbed_official | 76:aeb1df146756 | 78 | GPIO_TypeDef *gpio; |
mbed_official | 76:aeb1df146756 | 79 | GPIO_InitTypeDef GPIO_InitStructure; |
mbed_official | 76:aeb1df146756 | 80 | |
mbed_official | 52:a51c77007319 | 81 | if (pin == NC) return; |
mbed_official | 52:a51c77007319 | 82 | |
mbed_official | 76:aeb1df146756 | 83 | // Get the pin informations |
mbed_official | 52:a51c77007319 | 84 | uint32_t mode = STM_PIN_MODE(data); |
mbed_official | 52:a51c77007319 | 85 | uint32_t afnum = STM_PIN_AFNUM(data); |
mbed_official | 52:a51c77007319 | 86 | |
mbed_official | 76:aeb1df146756 | 87 | uint32_t port_index = STM_PORT(pin); |
mbed_official | 76:aeb1df146756 | 88 | uint32_t pin_index = STM_PIN(pin); |
mbed_official | 52:a51c77007319 | 89 | |
mbed_official | 76:aeb1df146756 | 90 | // Enable GPIO clock |
mbed_official | 76:aeb1df146756 | 91 | uint32_t gpio_add = Set_GPIO_Clock(port_index); |
mbed_official | 76:aeb1df146756 | 92 | gpio = (GPIO_TypeDef *)gpio_add; |
mbed_official | 80:66393a7b209d | 93 | |
mbed_official | 76:aeb1df146756 | 94 | // Enable AFIO clock |
mbed_official | 52:a51c77007319 | 95 | RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); |
mbed_official | 80:66393a7b209d | 96 | |
mbed_official | 80:66393a7b209d | 97 | // Configure Alternate Function |
mbed_official | 80:66393a7b209d | 98 | // Warning: Must be done before the GPIO is initialized |
mbed_official | 80:66393a7b209d | 99 | if (afnum > 0) { |
mbed_official | 80:66393a7b209d | 100 | GPIO_PinRemapConfig(AF_mapping[afnum], ENABLE); |
mbed_official | 80:66393a7b209d | 101 | } |
mbed_official | 52:a51c77007319 | 102 | |
mbed_official | 52:a51c77007319 | 103 | // Configure GPIO |
mbed_official | 52:a51c77007319 | 104 | GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index); |
mbed_official | 52:a51c77007319 | 105 | GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode; |
mbed_official | 52:a51c77007319 | 106 | GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; |
mbed_official | 52:a51c77007319 | 107 | GPIO_Init(gpio, &GPIO_InitStructure); |
mbed_official | 52:a51c77007319 | 108 | |
mbed_official | 52:a51c77007319 | 109 | // Disconnect JTAG-DP + SW-DP signals. |
mbed_official | 52:a51c77007319 | 110 | // Warning: Need to reconnect under reset |
mbed_official | 52:a51c77007319 | 111 | if ((pin == PA_13) || (pin == PA_14)) { |
mbed_official | 52:a51c77007319 | 112 | GPIO_PinRemapConfig(GPIO_Remap_SWJ_Disable, ENABLE); |
mbed_official | 52:a51c77007319 | 113 | } |
mbed_official | 52:a51c77007319 | 114 | if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) { |
mbed_official | 52:a51c77007319 | 115 | GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE); |
mbed_official | 52:a51c77007319 | 116 | } |
mbed_official | 52:a51c77007319 | 117 | } |
mbed_official | 52:a51c77007319 | 118 | |
mbed_official | 52:a51c77007319 | 119 | /** |
mbed_official | 76:aeb1df146756 | 120 | * Configure pin pull-up/pull-down |
mbed_official | 52:a51c77007319 | 121 | */ |
mbed_official | 52:a51c77007319 | 122 | void pin_mode(PinName pin, PinMode mode) { |
mbed_official | 76:aeb1df146756 | 123 | GPIO_TypeDef *gpio; |
mbed_official | 76:aeb1df146756 | 124 | GPIO_InitTypeDef GPIO_InitStructure; |
mbed_official | 76:aeb1df146756 | 125 | |
mbed_official | 52:a51c77007319 | 126 | if (pin == NC) return; |
mbed_official | 52:a51c77007319 | 127 | |
mbed_official | 76:aeb1df146756 | 128 | uint32_t port_index = STM_PORT(pin); |
mbed_official | 76:aeb1df146756 | 129 | uint32_t pin_index = STM_PIN(pin); |
mbed_official | 52:a51c77007319 | 130 | |
mbed_official | 52:a51c77007319 | 131 | // Enable GPIO clock |
mbed_official | 76:aeb1df146756 | 132 | uint32_t gpio_add = Set_GPIO_Clock(port_index); |
mbed_official | 76:aeb1df146756 | 133 | gpio = (GPIO_TypeDef *)gpio_add; |
mbed_official | 52:a51c77007319 | 134 | |
mbed_official | 52:a51c77007319 | 135 | // Configure open-drain and pull-up/down |
mbed_official | 52:a51c77007319 | 136 | switch (mode) { |
mbed_official | 52:a51c77007319 | 137 | case PullNone: |
mbed_official | 52:a51c77007319 | 138 | return; |
mbed_official | 52:a51c77007319 | 139 | case PullUp: |
mbed_official | 52:a51c77007319 | 140 | GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; |
mbed_official | 52:a51c77007319 | 141 | break; |
mbed_official | 52:a51c77007319 | 142 | case PullDown: |
mbed_official | 52:a51c77007319 | 143 | GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; |
mbed_official | 52:a51c77007319 | 144 | break; |
mbed_official | 52:a51c77007319 | 145 | case OpenDrain: |
mbed_official | 52:a51c77007319 | 146 | if (pin_index < 8) { |
mbed_official | 52:a51c77007319 | 147 | if ((gpio->CRL & (0x03 << (pin_index * 4))) > 0) { // MODE bits = Output mode |
mbed_official | 52:a51c77007319 | 148 | gpio->CRL |= (0x04 << (pin_index * 4)); // Set open-drain |
mbed_official | 52:a51c77007319 | 149 | } |
mbed_official | 52:a51c77007319 | 150 | } |
mbed_official | 52:a51c77007319 | 151 | else { |
mbed_official | 52:a51c77007319 | 152 | if ((gpio->CRH & (0x03 << ((pin_index % 8) * 4))) > 0) { // MODE bits = Output mode |
mbed_official | 52:a51c77007319 | 153 | gpio->CRH |= (0x04 << ((pin_index % 8) * 4)); // Set open-drain |
mbed_official | 52:a51c77007319 | 154 | } |
mbed_official | 52:a51c77007319 | 155 | } |
mbed_official | 52:a51c77007319 | 156 | return; |
mbed_official | 52:a51c77007319 | 157 | default: |
mbed_official | 52:a51c77007319 | 158 | break; |
mbed_official | 52:a51c77007319 | 159 | } |
mbed_official | 52:a51c77007319 | 160 | |
mbed_official | 52:a51c77007319 | 161 | // Configure GPIO |
mbed_official | 52:a51c77007319 | 162 | GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index); |
mbed_official | 52:a51c77007319 | 163 | GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; |
mbed_official | 52:a51c77007319 | 164 | GPIO_Init(gpio, &GPIO_InitStructure); |
mbed_official | 52:a51c77007319 | 165 | } |