mbed library sources
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targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pwmout_api.c@125:23cc3068a9e4, 2014-03-19 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Mar 19 10:15:22 2014 +0000
- Revision:
- 125:23cc3068a9e4
- Child:
- 135:067cc8ba23da
Synchronized with git revision ace35dfba3748c7cdc102eb38ec6b9e1067c3252
Full URL: https://github.com/mbedmicro/mbed/commit/ace35dfba3748c7cdc102eb38ec6b9e1067c3252/
[NUCLEO_F302R8] Add cmsis and hal files + change F401RE clock to 84MHz
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 "pwmout_api.h" |
mbed_official | 125:23cc3068a9e4 | 31 | |
mbed_official | 125:23cc3068a9e4 | 32 | #include "cmsis.h" |
mbed_official | 125:23cc3068a9e4 | 33 | #include "pinmap.h" |
mbed_official | 125:23cc3068a9e4 | 34 | #include "error.h" |
mbed_official | 125:23cc3068a9e4 | 35 | |
mbed_official | 125:23cc3068a9e4 | 36 | // TIM2 cannot be used because already used by the us_ticker |
mbed_official | 125:23cc3068a9e4 | 37 | static const PinMap PinMap_PWM[] = { |
mbed_official | 125:23cc3068a9e4 | 38 | //{PA_0, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1 |
mbed_official | 125:23cc3068a9e4 | 39 | //{PA_1, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH2 |
mbed_official | 125:23cc3068a9e4 | 40 | {PA_1, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH1N |
mbed_official | 125:23cc3068a9e4 | 41 | {PA_2, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH1 |
mbed_official | 125:23cc3068a9e4 | 42 | {PA_3, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_9)}, // TIM15_CH2 |
mbed_official | 125:23cc3068a9e4 | 43 | //{PA_5, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1 |
mbed_official | 125:23cc3068a9e4 | 44 | {PA_6, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 |
mbed_official | 125:23cc3068a9e4 | 45 | {PA_7, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1 |
mbed_official | 125:23cc3068a9e4 | 46 | //{PA_7, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N |
mbed_official | 125:23cc3068a9e4 | 47 | {PA_8, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1 |
mbed_official | 125:23cc3068a9e4 | 48 | {PA_9, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2 |
mbed_official | 125:23cc3068a9e4 | 49 | //{PA_9, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH3 |
mbed_official | 125:23cc3068a9e4 | 50 | {PA_10, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3 |
mbed_official | 125:23cc3068a9e4 | 51 | //{PA_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM2_CH4 |
mbed_official | 125:23cc3068a9e4 | 52 | {PA_11, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_11)}, // TIM1_CH4 |
mbed_official | 125:23cc3068a9e4 | 53 | //{PA_11, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N |
mbed_official | 125:23cc3068a9e4 | 54 | {PA_12, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 |
mbed_official | 125:23cc3068a9e4 | 55 | //{PA_12, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N |
mbed_official | 125:23cc3068a9e4 | 56 | {PA_13, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1N |
mbed_official | 125:23cc3068a9e4 | 57 | //{PA_15, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH1 |
mbed_official | 125:23cc3068a9e4 | 58 | |
mbed_official | 125:23cc3068a9e4 | 59 | {PB_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N |
mbed_official | 125:23cc3068a9e4 | 60 | {PB_1, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3N |
mbed_official | 125:23cc3068a9e4 | 61 | //{PB_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH2 |
mbed_official | 125:23cc3068a9e4 | 62 | {PB_4, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 |
mbed_official | 125:23cc3068a9e4 | 63 | {PB_5, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_10)}, // TIM17_CH1 |
mbed_official | 125:23cc3068a9e4 | 64 | {PB_6, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1N |
mbed_official | 125:23cc3068a9e4 | 65 | {PB_7, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1N |
mbed_official | 125:23cc3068a9e4 | 66 | {PB_8, PWM_16, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM16_CH1 |
mbed_official | 125:23cc3068a9e4 | 67 | {PB_9, PWM_17, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM17_CH1 |
mbed_official | 125:23cc3068a9e4 | 68 | //{PB_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH3 |
mbed_official | 125:23cc3068a9e4 | 69 | //{PB_11, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM2_CH4 |
mbed_official | 125:23cc3068a9e4 | 70 | {PB_13, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH1N |
mbed_official | 125:23cc3068a9e4 | 71 | {PB_14, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM15_CH1 |
mbed_official | 125:23cc3068a9e4 | 72 | //{PB_14, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH2N |
mbed_official | 125:23cc3068a9e4 | 73 | {PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_1)}, // TIM15_CH2 |
mbed_official | 125:23cc3068a9e4 | 74 | //{PB_15, PWM_15, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM15_CH1N |
mbed_official | 125:23cc3068a9e4 | 75 | //{PB_15, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)}, // TIM1_CH3N |
mbed_official | 125:23cc3068a9e4 | 76 | |
mbed_official | 125:23cc3068a9e4 | 77 | {PC_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH1 |
mbed_official | 125:23cc3068a9e4 | 78 | {PC_1, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH2 |
mbed_official | 125:23cc3068a9e4 | 79 | {PC_2, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH3 |
mbed_official | 125:23cc3068a9e4 | 80 | {PC_3, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_2)}, // TIM1_CH4 |
mbed_official | 125:23cc3068a9e4 | 81 | {PC_13, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_4)}, // TIM1_CH1N |
mbed_official | 125:23cc3068a9e4 | 82 | |
mbed_official | 125:23cc3068a9e4 | 83 | {PF_0, PWM_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_6)}, // TIM1_CH3N |
mbed_official | 125:23cc3068a9e4 | 84 | |
mbed_official | 125:23cc3068a9e4 | 85 | {NC, NC, 0} |
mbed_official | 125:23cc3068a9e4 | 86 | }; |
mbed_official | 125:23cc3068a9e4 | 87 | |
mbed_official | 125:23cc3068a9e4 | 88 | void pwmout_init(pwmout_t* obj, PinName pin) { |
mbed_official | 125:23cc3068a9e4 | 89 | // Get the peripheral name from the pin and assign it to the object |
mbed_official | 125:23cc3068a9e4 | 90 | obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM); |
mbed_official | 125:23cc3068a9e4 | 91 | |
mbed_official | 125:23cc3068a9e4 | 92 | if (obj->pwm == (PWMName)NC) { |
mbed_official | 125:23cc3068a9e4 | 93 | error("PWM pinout mapping failed"); |
mbed_official | 125:23cc3068a9e4 | 94 | } |
mbed_official | 125:23cc3068a9e4 | 95 | |
mbed_official | 125:23cc3068a9e4 | 96 | // Enable TIM clock |
mbed_official | 125:23cc3068a9e4 | 97 | if (obj->pwm == PWM_1) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); |
mbed_official | 125:23cc3068a9e4 | 98 | if (obj->pwm == PWM_15) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM15, ENABLE); |
mbed_official | 125:23cc3068a9e4 | 99 | if (obj->pwm == PWM_16) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM16, ENABLE); |
mbed_official | 125:23cc3068a9e4 | 100 | if (obj->pwm == PWM_17) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM17, ENABLE); |
mbed_official | 125:23cc3068a9e4 | 101 | |
mbed_official | 125:23cc3068a9e4 | 102 | // Configure GPIO |
mbed_official | 125:23cc3068a9e4 | 103 | pinmap_pinout(pin, PinMap_PWM); |
mbed_official | 125:23cc3068a9e4 | 104 | |
mbed_official | 125:23cc3068a9e4 | 105 | obj->pin = pin; |
mbed_official | 125:23cc3068a9e4 | 106 | obj->period = 0; |
mbed_official | 125:23cc3068a9e4 | 107 | obj->pulse = 0; |
mbed_official | 125:23cc3068a9e4 | 108 | |
mbed_official | 125:23cc3068a9e4 | 109 | pwmout_period_us(obj, 20000); // 20 ms per default |
mbed_official | 125:23cc3068a9e4 | 110 | } |
mbed_official | 125:23cc3068a9e4 | 111 | |
mbed_official | 125:23cc3068a9e4 | 112 | void pwmout_free(pwmout_t* obj) { |
mbed_official | 125:23cc3068a9e4 | 113 | TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm); |
mbed_official | 125:23cc3068a9e4 | 114 | TIM_DeInit(tim); |
mbed_official | 125:23cc3068a9e4 | 115 | } |
mbed_official | 125:23cc3068a9e4 | 116 | |
mbed_official | 125:23cc3068a9e4 | 117 | void pwmout_write(pwmout_t* obj, float value) { |
mbed_official | 125:23cc3068a9e4 | 118 | TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm); |
mbed_official | 125:23cc3068a9e4 | 119 | TIM_OCInitTypeDef TIM_OCInitStructure; |
mbed_official | 125:23cc3068a9e4 | 120 | |
mbed_official | 125:23cc3068a9e4 | 121 | if (value < (float)0.0) { |
mbed_official | 125:23cc3068a9e4 | 122 | value = (float)0.0; |
mbed_official | 125:23cc3068a9e4 | 123 | } else if (value > (float)1.0) { |
mbed_official | 125:23cc3068a9e4 | 124 | value = (float)1.0; |
mbed_official | 125:23cc3068a9e4 | 125 | } |
mbed_official | 125:23cc3068a9e4 | 126 | |
mbed_official | 125:23cc3068a9e4 | 127 | obj->pulse = (uint32_t)((float)obj->period * value); |
mbed_official | 125:23cc3068a9e4 | 128 | |
mbed_official | 125:23cc3068a9e4 | 129 | // Configure channels |
mbed_official | 125:23cc3068a9e4 | 130 | TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; |
mbed_official | 125:23cc3068a9e4 | 131 | TIM_OCInitStructure.TIM_Pulse = obj->pulse; |
mbed_official | 125:23cc3068a9e4 | 132 | TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; |
mbed_official | 125:23cc3068a9e4 | 133 | TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCPolarity_High; |
mbed_official | 125:23cc3068a9e4 | 134 | TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset; |
mbed_official | 125:23cc3068a9e4 | 135 | TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset; |
mbed_official | 125:23cc3068a9e4 | 136 | |
mbed_official | 125:23cc3068a9e4 | 137 | switch (obj->pin) { |
mbed_official | 125:23cc3068a9e4 | 138 | // Channels 1 |
mbed_official | 125:23cc3068a9e4 | 139 | //case PA_0: |
mbed_official | 125:23cc3068a9e4 | 140 | case PA_2: |
mbed_official | 125:23cc3068a9e4 | 141 | //case PA_5: |
mbed_official | 125:23cc3068a9e4 | 142 | case PA_6: |
mbed_official | 125:23cc3068a9e4 | 143 | case PA_7: |
mbed_official | 125:23cc3068a9e4 | 144 | case PA_8: |
mbed_official | 125:23cc3068a9e4 | 145 | case PA_12: |
mbed_official | 125:23cc3068a9e4 | 146 | //case PA_15: |
mbed_official | 125:23cc3068a9e4 | 147 | case PB_4: |
mbed_official | 125:23cc3068a9e4 | 148 | case PB_5: |
mbed_official | 125:23cc3068a9e4 | 149 | case PB_8: |
mbed_official | 125:23cc3068a9e4 | 150 | case PB_9: |
mbed_official | 125:23cc3068a9e4 | 151 | case PB_14: |
mbed_official | 125:23cc3068a9e4 | 152 | case PC_0: |
mbed_official | 125:23cc3068a9e4 | 153 | TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; |
mbed_official | 125:23cc3068a9e4 | 154 | TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable); |
mbed_official | 125:23cc3068a9e4 | 155 | TIM_OC1Init(tim, &TIM_OCInitStructure); |
mbed_official | 125:23cc3068a9e4 | 156 | break; |
mbed_official | 125:23cc3068a9e4 | 157 | // Channels 1N |
mbed_official | 125:23cc3068a9e4 | 158 | case PA_1: |
mbed_official | 125:23cc3068a9e4 | 159 | //case PA_7: |
mbed_official | 125:23cc3068a9e4 | 160 | //case PA_11: |
mbed_official | 125:23cc3068a9e4 | 161 | case PA_13: |
mbed_official | 125:23cc3068a9e4 | 162 | case PB_6: |
mbed_official | 125:23cc3068a9e4 | 163 | case PB_7: |
mbed_official | 125:23cc3068a9e4 | 164 | case PB_13: |
mbed_official | 125:23cc3068a9e4 | 165 | //case PB_15: |
mbed_official | 125:23cc3068a9e4 | 166 | case PC_13: |
mbed_official | 125:23cc3068a9e4 | 167 | TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; |
mbed_official | 125:23cc3068a9e4 | 168 | TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable); |
mbed_official | 125:23cc3068a9e4 | 169 | TIM_OC1Init(tim, &TIM_OCInitStructure); |
mbed_official | 125:23cc3068a9e4 | 170 | break; |
mbed_official | 125:23cc3068a9e4 | 171 | // Channels 2 |
mbed_official | 125:23cc3068a9e4 | 172 | //case PA_1: |
mbed_official | 125:23cc3068a9e4 | 173 | case PA_3: |
mbed_official | 125:23cc3068a9e4 | 174 | case PA_9: |
mbed_official | 125:23cc3068a9e4 | 175 | //case PB_3: |
mbed_official | 125:23cc3068a9e4 | 176 | case PB_15: |
mbed_official | 125:23cc3068a9e4 | 177 | case PC_1: |
mbed_official | 125:23cc3068a9e4 | 178 | TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; |
mbed_official | 125:23cc3068a9e4 | 179 | TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable); |
mbed_official | 125:23cc3068a9e4 | 180 | TIM_OC2Init(tim, &TIM_OCInitStructure); |
mbed_official | 125:23cc3068a9e4 | 181 | break; |
mbed_official | 125:23cc3068a9e4 | 182 | // Channels 2N |
mbed_official | 125:23cc3068a9e4 | 183 | //case PA_12: |
mbed_official | 125:23cc3068a9e4 | 184 | case PB_0: |
mbed_official | 125:23cc3068a9e4 | 185 | //case PB_14: |
mbed_official | 125:23cc3068a9e4 | 186 | TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; |
mbed_official | 125:23cc3068a9e4 | 187 | TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable); |
mbed_official | 125:23cc3068a9e4 | 188 | TIM_OC2Init(tim, &TIM_OCInitStructure); |
mbed_official | 125:23cc3068a9e4 | 189 | break; |
mbed_official | 125:23cc3068a9e4 | 190 | // Channels 3 |
mbed_official | 125:23cc3068a9e4 | 191 | //case PA_9: |
mbed_official | 125:23cc3068a9e4 | 192 | case PA_10: |
mbed_official | 125:23cc3068a9e4 | 193 | //case PB_10: |
mbed_official | 125:23cc3068a9e4 | 194 | case PC_2: |
mbed_official | 125:23cc3068a9e4 | 195 | TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; |
mbed_official | 125:23cc3068a9e4 | 196 | TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable); |
mbed_official | 125:23cc3068a9e4 | 197 | TIM_OC3Init(tim, &TIM_OCInitStructure); |
mbed_official | 125:23cc3068a9e4 | 198 | break; |
mbed_official | 125:23cc3068a9e4 | 199 | // Channels 3N |
mbed_official | 125:23cc3068a9e4 | 200 | case PB_1: |
mbed_official | 125:23cc3068a9e4 | 201 | case PF_0: |
mbed_official | 125:23cc3068a9e4 | 202 | //case PB_15: |
mbed_official | 125:23cc3068a9e4 | 203 | TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; |
mbed_official | 125:23cc3068a9e4 | 204 | TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable); |
mbed_official | 125:23cc3068a9e4 | 205 | TIM_OC3Init(tim, &TIM_OCInitStructure); |
mbed_official | 125:23cc3068a9e4 | 206 | break; |
mbed_official | 125:23cc3068a9e4 | 207 | // Channels 4 |
mbed_official | 125:23cc3068a9e4 | 208 | //case PA_10: |
mbed_official | 125:23cc3068a9e4 | 209 | case PA_11: |
mbed_official | 125:23cc3068a9e4 | 210 | //case PB_11: |
mbed_official | 125:23cc3068a9e4 | 211 | case PC_3: |
mbed_official | 125:23cc3068a9e4 | 212 | TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; |
mbed_official | 125:23cc3068a9e4 | 213 | TIM_OC4PreloadConfig(tim, TIM_OCPreload_Enable); |
mbed_official | 125:23cc3068a9e4 | 214 | TIM_OC4Init(tim, &TIM_OCInitStructure); |
mbed_official | 125:23cc3068a9e4 | 215 | break; |
mbed_official | 125:23cc3068a9e4 | 216 | default: |
mbed_official | 125:23cc3068a9e4 | 217 | return; |
mbed_official | 125:23cc3068a9e4 | 218 | } |
mbed_official | 125:23cc3068a9e4 | 219 | } |
mbed_official | 125:23cc3068a9e4 | 220 | |
mbed_official | 125:23cc3068a9e4 | 221 | float pwmout_read(pwmout_t* obj) { |
mbed_official | 125:23cc3068a9e4 | 222 | float value = 0; |
mbed_official | 125:23cc3068a9e4 | 223 | if (obj->period > 0) { |
mbed_official | 125:23cc3068a9e4 | 224 | value = (float)(obj->pulse) / (float)(obj->period); |
mbed_official | 125:23cc3068a9e4 | 225 | } |
mbed_official | 125:23cc3068a9e4 | 226 | return ((value > (float)1.0) ? ((float)1.0) : (value)); |
mbed_official | 125:23cc3068a9e4 | 227 | } |
mbed_official | 125:23cc3068a9e4 | 228 | |
mbed_official | 125:23cc3068a9e4 | 229 | void pwmout_period(pwmout_t* obj, float seconds) { |
mbed_official | 125:23cc3068a9e4 | 230 | pwmout_period_us(obj, seconds * 1000000.0f); |
mbed_official | 125:23cc3068a9e4 | 231 | } |
mbed_official | 125:23cc3068a9e4 | 232 | |
mbed_official | 125:23cc3068a9e4 | 233 | void pwmout_period_ms(pwmout_t* obj, int ms) { |
mbed_official | 125:23cc3068a9e4 | 234 | pwmout_period_us(obj, ms * 1000); |
mbed_official | 125:23cc3068a9e4 | 235 | } |
mbed_official | 125:23cc3068a9e4 | 236 | |
mbed_official | 125:23cc3068a9e4 | 237 | void pwmout_period_us(pwmout_t* obj, int us) { |
mbed_official | 125:23cc3068a9e4 | 238 | TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm); |
mbed_official | 125:23cc3068a9e4 | 239 | TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; |
mbed_official | 125:23cc3068a9e4 | 240 | float dc = pwmout_read(obj); |
mbed_official | 125:23cc3068a9e4 | 241 | |
mbed_official | 125:23cc3068a9e4 | 242 | TIM_Cmd(tim, DISABLE); |
mbed_official | 125:23cc3068a9e4 | 243 | |
mbed_official | 125:23cc3068a9e4 | 244 | obj->period = us; |
mbed_official | 125:23cc3068a9e4 | 245 | |
mbed_official | 125:23cc3068a9e4 | 246 | TIM_TimeBaseStructInit(&TIM_TimeBaseStructure); |
mbed_official | 125:23cc3068a9e4 | 247 | TIM_TimeBaseStructure.TIM_Period = obj->period - 1; |
mbed_official | 125:23cc3068a9e4 | 248 | TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick |
mbed_official | 125:23cc3068a9e4 | 249 | TIM_TimeBaseStructure.TIM_ClockDivision = 0; |
mbed_official | 125:23cc3068a9e4 | 250 | TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; |
mbed_official | 125:23cc3068a9e4 | 251 | TIM_TimeBaseInit(tim, &TIM_TimeBaseStructure); |
mbed_official | 125:23cc3068a9e4 | 252 | |
mbed_official | 125:23cc3068a9e4 | 253 | // Set duty cycle again |
mbed_official | 125:23cc3068a9e4 | 254 | pwmout_write(obj, dc); |
mbed_official | 125:23cc3068a9e4 | 255 | |
mbed_official | 125:23cc3068a9e4 | 256 | TIM_ARRPreloadConfig(tim, ENABLE); |
mbed_official | 125:23cc3068a9e4 | 257 | |
mbed_official | 125:23cc3068a9e4 | 258 | // Warning: Main Output must be enabled on TIM1, TIM8, TIM5, TIM6 and TIM17 |
mbed_official | 125:23cc3068a9e4 | 259 | if ((obj->pwm == PWM_1) || (obj->pwm == PWM_15) || (obj->pwm == PWM_16) || (obj->pwm == PWM_17)) { |
mbed_official | 125:23cc3068a9e4 | 260 | TIM_CtrlPWMOutputs(tim, ENABLE); |
mbed_official | 125:23cc3068a9e4 | 261 | } |
mbed_official | 125:23cc3068a9e4 | 262 | |
mbed_official | 125:23cc3068a9e4 | 263 | TIM_Cmd(tim, ENABLE); |
mbed_official | 125:23cc3068a9e4 | 264 | } |
mbed_official | 125:23cc3068a9e4 | 265 | |
mbed_official | 125:23cc3068a9e4 | 266 | void pwmout_pulsewidth(pwmout_t* obj, float seconds) { |
mbed_official | 125:23cc3068a9e4 | 267 | pwmout_pulsewidth_us(obj, seconds * 1000000.0f); |
mbed_official | 125:23cc3068a9e4 | 268 | } |
mbed_official | 125:23cc3068a9e4 | 269 | |
mbed_official | 125:23cc3068a9e4 | 270 | void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) { |
mbed_official | 125:23cc3068a9e4 | 271 | pwmout_pulsewidth_us(obj, ms * 1000); |
mbed_official | 125:23cc3068a9e4 | 272 | } |
mbed_official | 125:23cc3068a9e4 | 273 | |
mbed_official | 125:23cc3068a9e4 | 274 | void pwmout_pulsewidth_us(pwmout_t* obj, int us) { |
mbed_official | 125:23cc3068a9e4 | 275 | float value = (float)us / (float)obj->period; |
mbed_official | 125:23cc3068a9e4 | 276 | pwmout_write(obj, value); |
mbed_official | 125:23cc3068a9e4 | 277 | } |