mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_STM/TARGET_NUCLEO_F401RE/pwmout_api.c@226:b062af740e40, 2014-06-11 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Jun 11 09:45:09 2014 +0100
- Revision:
- 226:b062af740e40
- Parent:
- 185:e752b4ee7de1
- Child:
- 250:a49055e7a707
Synchronized with git revision 42deb9ac55f9bdf9835e9c41dc757117d344ffda
Full URL: https://github.com/mbedmicro/mbed/commit/42deb9ac55f9bdf9835e9c41dc757117d344ffda/
[NUCLEO_F401RE] Remove call to Systick + bug fixes
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 87:085cde657901 | 1 | /* mbed Microcontroller Library |
mbed_official | 87:085cde657901 | 2 | ******************************************************************************* |
mbed_official | 87:085cde657901 | 3 | * Copyright (c) 2014, STMicroelectronics |
mbed_official | 87:085cde657901 | 4 | * All rights reserved. |
mbed_official | 87:085cde657901 | 5 | * |
mbed_official | 87:085cde657901 | 6 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 87:085cde657901 | 7 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 87:085cde657901 | 8 | * |
mbed_official | 87:085cde657901 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 87:085cde657901 | 10 | * this list of conditions and the following disclaimer. |
mbed_official | 87:085cde657901 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 87:085cde657901 | 12 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 87:085cde657901 | 13 | * and/or other materials provided with the distribution. |
mbed_official | 87:085cde657901 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 87:085cde657901 | 15 | * may be used to endorse or promote products derived from this software |
mbed_official | 87:085cde657901 | 16 | * without specific prior written permission. |
mbed_official | 87:085cde657901 | 17 | * |
mbed_official | 87:085cde657901 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 87:085cde657901 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 87:085cde657901 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 87:085cde657901 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 87:085cde657901 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 87:085cde657901 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 87:085cde657901 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 87:085cde657901 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 87:085cde657901 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 87:085cde657901 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 87:085cde657901 | 28 | ******************************************************************************* |
mbed_official | 87:085cde657901 | 29 | */ |
mbed_official | 87:085cde657901 | 30 | #include "pwmout_api.h" |
mbed_official | 87:085cde657901 | 31 | |
mbed_official | 172:2f4f8c56b261 | 32 | #if DEVICE_PWMOUT |
mbed_official | 172:2f4f8c56b261 | 33 | |
mbed_official | 87:085cde657901 | 34 | #include "cmsis.h" |
mbed_official | 87:085cde657901 | 35 | #include "pinmap.h" |
mbed_official | 87:085cde657901 | 36 | #include "error.h" |
mbed_official | 87:085cde657901 | 37 | |
mbed_official | 125:23cc3068a9e4 | 38 | // TIM5 cannot be used because already used by the us_ticker |
mbed_official | 87:085cde657901 | 39 | static const PinMap PinMap_PWM[] = { |
mbed_official | 125:23cc3068a9e4 | 40 | {PA_0, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 |
mbed_official | 172:2f4f8c56b261 | 41 | // {PA_0, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH1 |
mbed_official | 125:23cc3068a9e4 | 42 | {PA_1, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2 |
mbed_official | 172:2f4f8c56b261 | 43 | // {PA_1, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH2 |
mbed_official | 125:23cc3068a9e4 | 44 | {PA_2, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3 |
mbed_official | 172:2f4f8c56b261 | 45 | // {PA_2, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH3 |
mbed_official | 172:2f4f8c56b261 | 46 | // {PA_2, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH1 |
mbed_official | 226:b062af740e40 | 47 | {PA_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH4 |
mbed_official | 172:2f4f8c56b261 | 48 | // {PA_3, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH4 |
mbed_official | 172:2f4f8c56b261 | 49 | // {PA_3, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH2 |
mbed_official | 125:23cc3068a9e4 | 50 | {PA_5, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 |
mbed_official | 125:23cc3068a9e4 | 51 | {PA_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 |
mbed_official | 125:23cc3068a9e4 | 52 | {PA_7, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N |
mbed_official | 172:2f4f8c56b261 | 53 | // {PA_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 |
mbed_official | 125:23cc3068a9e4 | 54 | {PA_8, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1 |
mbed_official | 125:23cc3068a9e4 | 55 | {PA_9, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2 |
mbed_official | 125:23cc3068a9e4 | 56 | {PA_10, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3 |
mbed_official | 125:23cc3068a9e4 | 57 | {PA_11, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH4 |
mbed_official | 125:23cc3068a9e4 | 58 | {PA_15, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 |
mbed_official | 125:23cc3068a9e4 | 59 | |
mbed_official | 125:23cc3068a9e4 | 60 | {PB_0, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N |
mbed_official | 172:2f4f8c56b261 | 61 | // {PB_0, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3 |
mbed_official | 125:23cc3068a9e4 | 62 | {PB_1, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N |
mbed_official | 172:2f4f8c56b261 | 63 | // {PB_1, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4 |
mbed_official | 125:23cc3068a9e4 | 64 | {PB_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2 |
mbed_official | 125:23cc3068a9e4 | 65 | {PB_4, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 |
mbed_official | 125:23cc3068a9e4 | 66 | {PB_5, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 |
mbed_official | 125:23cc3068a9e4 | 67 | {PB_6, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH1 |
mbed_official | 125:23cc3068a9e4 | 68 | {PB_7, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH2 |
mbed_official | 125:23cc3068a9e4 | 69 | {PB_8, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH3 |
mbed_official | 172:2f4f8c56b261 | 70 | // {PB_8, PWM_10,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM10)}, // TIM10_CH1 |
mbed_official | 125:23cc3068a9e4 | 71 | {PB_9, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH4 |
mbed_official | 172:2f4f8c56b261 | 72 | // {PB_9, PWM_11,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM11)}, // TIM11_CH1 |
mbed_official | 125:23cc3068a9e4 | 73 | {PB_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3 |
mbed_official | 125:23cc3068a9e4 | 74 | {PB_13, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N |
mbed_official | 125:23cc3068a9e4 | 75 | {PB_14, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N |
mbed_official | 125:23cc3068a9e4 | 76 | {PB_15, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N |
mbed_official | 185:e752b4ee7de1 | 77 | |
mbed_official | 125:23cc3068a9e4 | 78 | {PC_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 |
mbed_official | 125:23cc3068a9e4 | 79 | {PC_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 |
mbed_official | 125:23cc3068a9e4 | 80 | {PC_8, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3 |
mbed_official | 145:cfacfb0a9e19 | 81 | {PC_9, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4 |
mbed_official | 185:e752b4ee7de1 | 82 | |
mbed_official | 87:085cde657901 | 83 | {NC, NC, 0} |
mbed_official | 87:085cde657901 | 84 | }; |
mbed_official | 87:085cde657901 | 85 | |
mbed_official | 87:085cde657901 | 86 | static TIM_HandleTypeDef TimHandle; |
mbed_official | 87:085cde657901 | 87 | |
mbed_official | 172:2f4f8c56b261 | 88 | void pwmout_init(pwmout_t* obj, PinName pin) { |
mbed_official | 87:085cde657901 | 89 | // Get the peripheral name from the pin and assign it to the object |
mbed_official | 87:085cde657901 | 90 | obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM); |
mbed_official | 172:2f4f8c56b261 | 91 | |
mbed_official | 87:085cde657901 | 92 | if (obj->pwm == (PWMName)NC) { |
mbed_official | 87:085cde657901 | 93 | error("PWM error: pinout mapping failed."); |
mbed_official | 87:085cde657901 | 94 | } |
mbed_official | 172:2f4f8c56b261 | 95 | |
mbed_official | 87:085cde657901 | 96 | // Enable TIM clock |
mbed_official | 125:23cc3068a9e4 | 97 | if (obj->pwm == PWM_1) __TIM1_CLK_ENABLE(); |
mbed_official | 87:085cde657901 | 98 | if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE(); |
mbed_official | 87:085cde657901 | 99 | if (obj->pwm == PWM_3) __TIM3_CLK_ENABLE(); |
mbed_official | 87:085cde657901 | 100 | if (obj->pwm == PWM_4) __TIM4_CLK_ENABLE(); |
mbed_official | 125:23cc3068a9e4 | 101 | if (obj->pwm == PWM_9) __TIM9_CLK_ENABLE(); |
mbed_official | 125:23cc3068a9e4 | 102 | if (obj->pwm == PWM_10) __TIM10_CLK_ENABLE(); |
mbed_official | 125:23cc3068a9e4 | 103 | if (obj->pwm == PWM_11) __TIM11_CLK_ENABLE(); |
mbed_official | 172:2f4f8c56b261 | 104 | |
mbed_official | 87:085cde657901 | 105 | // Configure GPIO |
mbed_official | 87:085cde657901 | 106 | pinmap_pinout(pin, PinMap_PWM); |
mbed_official | 172:2f4f8c56b261 | 107 | |
mbed_official | 87:085cde657901 | 108 | obj->pin = pin; |
mbed_official | 87:085cde657901 | 109 | obj->period = 0; |
mbed_official | 87:085cde657901 | 110 | obj->pulse = 0; |
mbed_official | 172:2f4f8c56b261 | 111 | |
mbed_official | 87:085cde657901 | 112 | pwmout_period_us(obj, 20000); // 20 ms per default |
mbed_official | 87:085cde657901 | 113 | } |
mbed_official | 87:085cde657901 | 114 | |
mbed_official | 87:085cde657901 | 115 | void pwmout_free(pwmout_t* obj) { |
mbed_official | 172:2f4f8c56b261 | 116 | // Configure GPIO |
mbed_official | 172:2f4f8c56b261 | 117 | pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
mbed_official | 87:085cde657901 | 118 | } |
mbed_official | 87:085cde657901 | 119 | |
mbed_official | 87:085cde657901 | 120 | void pwmout_write(pwmout_t* obj, float value) { |
mbed_official | 87:085cde657901 | 121 | TIM_OC_InitTypeDef sConfig; |
mbed_official | 125:23cc3068a9e4 | 122 | int channel = 0; |
mbed_official | 125:23cc3068a9e4 | 123 | int complementary_channel = 0; |
mbed_official | 125:23cc3068a9e4 | 124 | |
mbed_official | 87:085cde657901 | 125 | TimHandle.Instance = (TIM_TypeDef *)(obj->pwm); |
mbed_official | 172:2f4f8c56b261 | 126 | |
mbed_official | 90:8818430cfa55 | 127 | if (value < (float)0.0) { |
mbed_official | 87:085cde657901 | 128 | value = 0.0; |
mbed_official | 90:8818430cfa55 | 129 | } else if (value > (float)1.0) { |
mbed_official | 87:085cde657901 | 130 | value = 1.0; |
mbed_official | 87:085cde657901 | 131 | } |
mbed_official | 172:2f4f8c56b261 | 132 | |
mbed_official | 87:085cde657901 | 133 | obj->pulse = (uint32_t)((float)obj->period * value); |
mbed_official | 125:23cc3068a9e4 | 134 | |
mbed_official | 172:2f4f8c56b261 | 135 | // Configure channels |
mbed_official | 125:23cc3068a9e4 | 136 | sConfig.OCMode = TIM_OCMODE_PWM1; |
mbed_official | 125:23cc3068a9e4 | 137 | sConfig.Pulse = obj->pulse; |
mbed_official | 125:23cc3068a9e4 | 138 | sConfig.OCPolarity = TIM_OCPOLARITY_HIGH; |
mbed_official | 172:2f4f8c56b261 | 139 | sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH; |
mbed_official | 125:23cc3068a9e4 | 140 | sConfig.OCFastMode = TIM_OCFAST_DISABLE; |
mbed_official | 125:23cc3068a9e4 | 141 | sConfig.OCIdleState = TIM_OCIDLESTATE_RESET; |
mbed_official | 125:23cc3068a9e4 | 142 | sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET; |
mbed_official | 87:085cde657901 | 143 | |
mbed_official | 125:23cc3068a9e4 | 144 | switch (obj->pin) { |
mbed_official | 226:b062af740e40 | 145 | |
mbed_official | 125:23cc3068a9e4 | 146 | // Channels 1 |
mbed_official | 125:23cc3068a9e4 | 147 | case PA_0: |
mbed_official | 125:23cc3068a9e4 | 148 | case PA_5: |
mbed_official | 125:23cc3068a9e4 | 149 | case PA_6: |
mbed_official | 125:23cc3068a9e4 | 150 | case PA_8: |
mbed_official | 125:23cc3068a9e4 | 151 | case PA_15: |
mbed_official | 125:23cc3068a9e4 | 152 | case PB_4: |
mbed_official | 125:23cc3068a9e4 | 153 | case PB_6: |
mbed_official | 172:2f4f8c56b261 | 154 | case PC_6: |
mbed_official | 125:23cc3068a9e4 | 155 | channel = TIM_CHANNEL_1; |
mbed_official | 125:23cc3068a9e4 | 156 | break; |
mbed_official | 226:b062af740e40 | 157 | |
mbed_official | 125:23cc3068a9e4 | 158 | // Channels 1N |
mbed_official | 125:23cc3068a9e4 | 159 | case PA_7: |
mbed_official | 125:23cc3068a9e4 | 160 | case PB_13: |
mbed_official | 125:23cc3068a9e4 | 161 | channel = TIM_CHANNEL_1; |
mbed_official | 125:23cc3068a9e4 | 162 | complementary_channel = 1; |
mbed_official | 125:23cc3068a9e4 | 163 | break; |
mbed_official | 226:b062af740e40 | 164 | |
mbed_official | 125:23cc3068a9e4 | 165 | // Channels 2 |
mbed_official | 125:23cc3068a9e4 | 166 | case PA_1: |
mbed_official | 125:23cc3068a9e4 | 167 | case PA_9: |
mbed_official | 125:23cc3068a9e4 | 168 | case PB_3: |
mbed_official | 125:23cc3068a9e4 | 169 | case PB_5: |
mbed_official | 125:23cc3068a9e4 | 170 | case PB_7: |
mbed_official | 185:e752b4ee7de1 | 171 | case PC_7: |
mbed_official | 125:23cc3068a9e4 | 172 | channel = TIM_CHANNEL_2; |
mbed_official | 125:23cc3068a9e4 | 173 | break; |
mbed_official | 226:b062af740e40 | 174 | |
mbed_official | 125:23cc3068a9e4 | 175 | // Channels 2N |
mbed_official | 125:23cc3068a9e4 | 176 | case PB_0: |
mbed_official | 172:2f4f8c56b261 | 177 | case PB_14: |
mbed_official | 125:23cc3068a9e4 | 178 | channel = TIM_CHANNEL_2; |
mbed_official | 125:23cc3068a9e4 | 179 | complementary_channel = 1; |
mbed_official | 125:23cc3068a9e4 | 180 | break; |
mbed_official | 226:b062af740e40 | 181 | |
mbed_official | 125:23cc3068a9e4 | 182 | // Channels 3 |
mbed_official | 125:23cc3068a9e4 | 183 | case PA_2: |
mbed_official | 125:23cc3068a9e4 | 184 | case PA_10: |
mbed_official | 125:23cc3068a9e4 | 185 | case PB_8: |
mbed_official | 125:23cc3068a9e4 | 186 | case PB_10: |
mbed_official | 125:23cc3068a9e4 | 187 | case PC_8: |
mbed_official | 125:23cc3068a9e4 | 188 | channel = TIM_CHANNEL_3; |
mbed_official | 125:23cc3068a9e4 | 189 | break; |
mbed_official | 226:b062af740e40 | 190 | |
mbed_official | 125:23cc3068a9e4 | 191 | // Channels 3N |
mbed_official | 125:23cc3068a9e4 | 192 | case PB_1: |
mbed_official | 185:e752b4ee7de1 | 193 | case PB_15: |
mbed_official | 125:23cc3068a9e4 | 194 | channel = TIM_CHANNEL_3; |
mbed_official | 125:23cc3068a9e4 | 195 | complementary_channel = 1; |
mbed_official | 125:23cc3068a9e4 | 196 | break; |
mbed_official | 226:b062af740e40 | 197 | |
mbed_official | 125:23cc3068a9e4 | 198 | // Channels 4 |
mbed_official | 226:b062af740e40 | 199 | case PA_3: |
mbed_official | 125:23cc3068a9e4 | 200 | case PA_11: |
mbed_official | 145:cfacfb0a9e19 | 201 | case PB_9: |
mbed_official | 172:2f4f8c56b261 | 202 | case PC_9: |
mbed_official | 125:23cc3068a9e4 | 203 | channel = TIM_CHANNEL_4; |
mbed_official | 172:2f4f8c56b261 | 204 | break; |
mbed_official | 226:b062af740e40 | 205 | |
mbed_official | 125:23cc3068a9e4 | 206 | default: |
mbed_official | 125:23cc3068a9e4 | 207 | return; |
mbed_official | 87:085cde657901 | 208 | } |
mbed_official | 172:2f4f8c56b261 | 209 | |
mbed_official | 125:23cc3068a9e4 | 210 | HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, channel); |
mbed_official | 125:23cc3068a9e4 | 211 | if (complementary_channel) { |
mbed_official | 125:23cc3068a9e4 | 212 | HAL_TIMEx_PWMN_Start(&TimHandle, channel); |
mbed_official | 185:e752b4ee7de1 | 213 | } else { |
mbed_official | 125:23cc3068a9e4 | 214 | HAL_TIM_PWM_Start(&TimHandle, channel); |
mbed_official | 125:23cc3068a9e4 | 215 | } |
mbed_official | 87:085cde657901 | 216 | } |
mbed_official | 87:085cde657901 | 217 | |
mbed_official | 87:085cde657901 | 218 | float pwmout_read(pwmout_t* obj) { |
mbed_official | 87:085cde657901 | 219 | float value = 0; |
mbed_official | 87:085cde657901 | 220 | if (obj->period > 0) { |
mbed_official | 87:085cde657901 | 221 | value = (float)(obj->pulse) / (float)(obj->period); |
mbed_official | 87:085cde657901 | 222 | } |
mbed_official | 90:8818430cfa55 | 223 | return ((value > (float)1.0) ? (float)(1.0) : (value)); |
mbed_official | 87:085cde657901 | 224 | } |
mbed_official | 87:085cde657901 | 225 | |
mbed_official | 87:085cde657901 | 226 | void pwmout_period(pwmout_t* obj, float seconds) { |
mbed_official | 87:085cde657901 | 227 | pwmout_period_us(obj, seconds * 1000000.0f); |
mbed_official | 87:085cde657901 | 228 | } |
mbed_official | 87:085cde657901 | 229 | |
mbed_official | 87:085cde657901 | 230 | void pwmout_period_ms(pwmout_t* obj, int ms) { |
mbed_official | 87:085cde657901 | 231 | pwmout_period_us(obj, ms * 1000); |
mbed_official | 87:085cde657901 | 232 | } |
mbed_official | 87:085cde657901 | 233 | |
mbed_official | 87:085cde657901 | 234 | void pwmout_period_us(pwmout_t* obj, int us) { |
mbed_official | 87:085cde657901 | 235 | TimHandle.Instance = (TIM_TypeDef *)(obj->pwm); |
mbed_official | 87:085cde657901 | 236 | |
mbed_official | 87:085cde657901 | 237 | float dc = pwmout_read(obj); |
mbed_official | 172:2f4f8c56b261 | 238 | |
mbed_official | 87:085cde657901 | 239 | __HAL_TIM_DISABLE(&TimHandle); |
mbed_official | 172:2f4f8c56b261 | 240 | |
mbed_official | 226:b062af740e40 | 241 | // Update the SystemCoreClock variable |
mbed_official | 226:b062af740e40 | 242 | SystemCoreClockUpdate(); |
mbed_official | 226:b062af740e40 | 243 | |
mbed_official | 87:085cde657901 | 244 | TimHandle.Init.Period = us - 1; |
mbed_official | 87:085cde657901 | 245 | TimHandle.Init.Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick |
mbed_official | 87:085cde657901 | 246 | TimHandle.Init.ClockDivision = 0; |
mbed_official | 87:085cde657901 | 247 | TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP; |
mbed_official | 87:085cde657901 | 248 | HAL_TIM_PWM_Init(&TimHandle); |
mbed_official | 87:085cde657901 | 249 | |
mbed_official | 87:085cde657901 | 250 | // Set duty cycle again |
mbed_official | 87:085cde657901 | 251 | pwmout_write(obj, dc); |
mbed_official | 87:085cde657901 | 252 | |
mbed_official | 172:2f4f8c56b261 | 253 | // Save for future use |
mbed_official | 87:085cde657901 | 254 | obj->period = us; |
mbed_official | 172:2f4f8c56b261 | 255 | |
mbed_official | 87:085cde657901 | 256 | __HAL_TIM_ENABLE(&TimHandle); |
mbed_official | 87:085cde657901 | 257 | } |
mbed_official | 87:085cde657901 | 258 | |
mbed_official | 87:085cde657901 | 259 | void pwmout_pulsewidth(pwmout_t* obj, float seconds) { |
mbed_official | 87:085cde657901 | 260 | pwmout_pulsewidth_us(obj, seconds * 1000000.0f); |
mbed_official | 87:085cde657901 | 261 | } |
mbed_official | 87:085cde657901 | 262 | |
mbed_official | 87:085cde657901 | 263 | void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) { |
mbed_official | 87:085cde657901 | 264 | pwmout_pulsewidth_us(obj, ms * 1000); |
mbed_official | 87:085cde657901 | 265 | } |
mbed_official | 87:085cde657901 | 266 | |
mbed_official | 87:085cde657901 | 267 | void pwmout_pulsewidth_us(pwmout_t* obj, int us) { |
mbed_official | 87:085cde657901 | 268 | float value = (float)us / (float)obj->period; |
mbed_official | 87:085cde657901 | 269 | pwmout_write(obj, value); |
mbed_official | 87:085cde657901 | 270 | } |
mbed_official | 172:2f4f8c56b261 | 271 | |
mbed_official | 172:2f4f8c56b261 | 272 | #endif |