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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pwmout_api.c@268:402bcc0c870b, 2014-07-29 (annotated)

Committer:
mbed_official
Date:
Tue Jul 29 19:00:07 2014 +0100
Revision:
268:402bcc0c870b
Parent:
227:7bd0639b8911
Child:
354:e67efb2aab0e
Synchronized with git revision 490d1a6606b3138f165c5edf2f2370ca616587c0



Full URL: https://github.com/mbedmicro/mbed/commit/490d1a6606b3138f165c5edf2f2370ca616587c0/



[LPC1114] Sleep fix + some device.h settings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 *******************************************************************************
mbed_official 76:aeb1df146756 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 4 * All rights reserved.
mbed_official 76:aeb1df146756 5 *
mbed_official 76:aeb1df146756 6 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 7 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 8 *
mbed_official 76:aeb1df146756 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 10 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 13 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 15 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 16 * without specific prior written permission.
mbed_official 76:aeb1df146756 17 *
mbed_official 76:aeb1df146756 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 28 *******************************************************************************
mbed_official 76:aeb1df146756 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 76:aeb1df146756 31 #include "pwmout_api.h"
mbed_official 76:aeb1df146756 32
mbed_official 174:8bb9f3a33240 33 #if DEVICE_PWMOUT
mbed_official 174:8bb9f3a33240 34
mbed_official 76:aeb1df146756 35 #include "cmsis.h"
mbed_official 76:aeb1df146756 36 #include "pinmap.h"
mbed_official 76:aeb1df146756 37
mbed_official 129:0182c99221bc 38 // TIM5 cannot be used because already used by the us_ticker
mbed_official 76:aeb1df146756 39 static const PinMap PinMap_PWM[] = {
mbed_official 174:8bb9f3a33240 40 // {PA_0, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1
mbed_official 129:0182c99221bc 41 {PA_1, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH2
mbed_official 174:8bb9f3a33240 42 // {PA_1, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1
mbed_official 129:0182c99221bc 43 {PA_2, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH3
mbed_official 174:8bb9f3a33240 44 // {PA_2, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH3
mbed_official 174:8bb9f3a33240 45 // {PA_2, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH1
mbed_official 129:0182c99221bc 46 {PA_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH4
mbed_official 174:8bb9f3a33240 47 // {PA_3, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH4
mbed_official 174:8bb9f3a33240 48 // {PA_3, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH2
mbed_official 129:0182c99221bc 49 {PA_6, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1
mbed_official 174:8bb9f3a33240 50 // {PA_6, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
mbed_official 129:0182c99221bc 51 {PA_7, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2
mbed_official 174:8bb9f3a33240 52 // {PA_7, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
mbed_official 129:0182c99221bc 53 {PB_0, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH3
mbed_official 129:0182c99221bc 54 {PB_1, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH4
mbed_official 129:0182c99221bc 55 {PB_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH2
mbed_official 129:0182c99221bc 56 {PB_4, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1
mbed_official 129:0182c99221bc 57 {PB_5, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2
mbed_official 129:0182c99221bc 58 {PB_6, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH1
mbed_official 129:0182c99221bc 59 {PB_7, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH2
mbed_official 129:0182c99221bc 60 {PB_8, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH3
mbed_official 174:8bb9f3a33240 61 // {PB_8, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
mbed_official 129:0182c99221bc 62 {PB_9, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH4
mbed_official 174:8bb9f3a33240 63 // {PB_9, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
mbed_official 129:0182c99221bc 64 {PB_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH3
mbed_official 129:0182c99221bc 65 {PB_11, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH4
mbed_official 129:0182c99221bc 66 {PB_12, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1
mbed_official 129:0182c99221bc 67 {PB_13, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH1
mbed_official 129:0182c99221bc 68 {PB_14, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH2
mbed_official 174:8bb9f3a33240 69 {PB_15, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1
mbed_official 129:0182c99221bc 70 {PC_6, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1
mbed_official 129:0182c99221bc 71 {PC_7, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2
mbed_official 129:0182c99221bc 72 {PC_8, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH3
mbed_official 174:8bb9f3a33240 73 {PC_9, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH4
mbed_official 129:0182c99221bc 74 {NC, NC, 0}
mbed_official 76:aeb1df146756 75 };
mbed_official 76:aeb1df146756 76
mbed_official 174:8bb9f3a33240 77 void pwmout_init(pwmout_t* obj, PinName pin) {
mbed_official 76:aeb1df146756 78 // Get the peripheral name from the pin and assign it to the object
mbed_official 76:aeb1df146756 79 obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
mbed_official 227:7bd0639b8911 80 MBED_ASSERT(obj->pwm != (PWMName)NC);
mbed_official 174:8bb9f3a33240 81
mbed_official 76:aeb1df146756 82 // Enable TIM clock
mbed_official 76:aeb1df146756 83 if (obj->pwm == PWM_2) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
mbed_official 76:aeb1df146756 84 if (obj->pwm == PWM_3) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
mbed_official 84:f54042cbc282 85 if (obj->pwm == PWM_4) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
mbed_official 129:0182c99221bc 86 if (obj->pwm == PWM_5) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);
mbed_official 129:0182c99221bc 87 if (obj->pwm == PWM_9) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM9, ENABLE);
mbed_official 129:0182c99221bc 88 if (obj->pwm == PWM_10) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM10, ENABLE);
mbed_official 129:0182c99221bc 89 if (obj->pwm == PWM_11) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM11, ENABLE);
mbed_official 174:8bb9f3a33240 90
mbed_official 76:aeb1df146756 91 // Configure GPIO
mbed_official 76:aeb1df146756 92 pinmap_pinout(pin, PinMap_PWM);
mbed_official 174:8bb9f3a33240 93
mbed_official 76:aeb1df146756 94 obj->pin = pin;
mbed_official 76:aeb1df146756 95 obj->period = 0;
mbed_official 76:aeb1df146756 96 obj->pulse = 0;
mbed_official 174:8bb9f3a33240 97
mbed_official 76:aeb1df146756 98 pwmout_period_us(obj, 20000); // 20 ms per default
mbed_official 76:aeb1df146756 99 }
mbed_official 76:aeb1df146756 100
mbed_official 76:aeb1df146756 101 void pwmout_free(pwmout_t* obj) {
mbed_official 215:83cf97a28428 102 // Configure GPIOs
mbed_official 215:83cf97a28428 103 pin_function(obj->pin, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
mbed_official 76:aeb1df146756 104 }
mbed_official 76:aeb1df146756 105
mbed_official 76:aeb1df146756 106 void pwmout_write(pwmout_t* obj, float value) {
mbed_official 76:aeb1df146756 107 TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
mbed_official 76:aeb1df146756 108 TIM_OCInitTypeDef TIM_OCInitStructure;
mbed_official 129:0182c99221bc 109
mbed_official 76:aeb1df146756 110 if (value < 0.0) {
mbed_official 76:aeb1df146756 111 value = 0.0;
mbed_official 76:aeb1df146756 112 } else if (value > 1.0) {
mbed_official 76:aeb1df146756 113 value = 1.0;
mbed_official 76:aeb1df146756 114 }
mbed_official 174:8bb9f3a33240 115
mbed_official 76:aeb1df146756 116 obj->pulse = (uint32_t)((float)obj->period * value);
mbed_official 174:8bb9f3a33240 117
mbed_official 129:0182c99221bc 118 TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
mbed_official 76:aeb1df146756 119 TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
mbed_official 129:0182c99221bc 120 TIM_OCInitStructure.TIM_Pulse = obj->pulse;
mbed_official 129:0182c99221bc 121 TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
mbed_official 76:aeb1df146756 122
mbed_official 129:0182c99221bc 123 // Configure the channels
mbed_official 129:0182c99221bc 124 switch (obj->pin) {
mbed_official 129:0182c99221bc 125 // Channels 1
mbed_official 174:8bb9f3a33240 126 //case PA_0:
mbed_official 174:8bb9f3a33240 127 //case PA_1:
mbed_official 174:8bb9f3a33240 128 //case PA_2:
mbed_official 129:0182c99221bc 129 case PA_6:
mbed_official 174:8bb9f3a33240 130 //case PA_7:
mbed_official 129:0182c99221bc 131 case PB_4:
mbed_official 129:0182c99221bc 132 case PB_6:
mbed_official 174:8bb9f3a33240 133 //case PB_8:
mbed_official 174:8bb9f3a33240 134 //case PB_9:
mbed_official 129:0182c99221bc 135 case PB_12:
mbed_official 129:0182c99221bc 136 case PB_13:
mbed_official 129:0182c99221bc 137 case PB_15:
mbed_official 129:0182c99221bc 138 case PC_6:
mbed_official 129:0182c99221bc 139 TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable);
mbed_official 129:0182c99221bc 140 TIM_OC1Init(tim, &TIM_OCInitStructure);
mbed_official 129:0182c99221bc 141 break;
mbed_official 129:0182c99221bc 142 // Channels 2
mbed_official 129:0182c99221bc 143 case PA_1:
mbed_official 174:8bb9f3a33240 144 //case PA_3:
mbed_official 129:0182c99221bc 145 case PA_7:
mbed_official 129:0182c99221bc 146 case PB_3:
mbed_official 129:0182c99221bc 147 case PB_5:
mbed_official 129:0182c99221bc 148 case PB_7:
mbed_official 129:0182c99221bc 149 case PB_14:
mbed_official 129:0182c99221bc 150 case PC_7:
mbed_official 129:0182c99221bc 151 TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable);
mbed_official 129:0182c99221bc 152 TIM_OC2Init(tim, &TIM_OCInitStructure);
mbed_official 129:0182c99221bc 153 break;
mbed_official 129:0182c99221bc 154 // Channels 3
mbed_official 129:0182c99221bc 155 case PA_2:
mbed_official 129:0182c99221bc 156 case PB_0:
mbed_official 129:0182c99221bc 157 case PB_8:
mbed_official 129:0182c99221bc 158 case PB_10:
mbed_official 129:0182c99221bc 159 case PC_8:
mbed_official 129:0182c99221bc 160 TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable);
mbed_official 129:0182c99221bc 161 TIM_OC3Init(tim, &TIM_OCInitStructure);
mbed_official 129:0182c99221bc 162 break;
mbed_official 129:0182c99221bc 163 // Channels 4
mbed_official 129:0182c99221bc 164 case PA_3:
mbed_official 129:0182c99221bc 165 case PB_1:
mbed_official 129:0182c99221bc 166 case PB_9:
mbed_official 129:0182c99221bc 167 case PB_11:
mbed_official 129:0182c99221bc 168 case PC_9:
mbed_official 129:0182c99221bc 169 TIM_OC4PreloadConfig(tim, TIM_OCPreload_Enable);
mbed_official 129:0182c99221bc 170 TIM_OC4Init(tim, &TIM_OCInitStructure);
mbed_official 174:8bb9f3a33240 171 break;
mbed_official 129:0182c99221bc 172 default:
mbed_official 129:0182c99221bc 173 return;
mbed_official 76:aeb1df146756 174 }
mbed_official 76:aeb1df146756 175 }
mbed_official 76:aeb1df146756 176
mbed_official 76:aeb1df146756 177 float pwmout_read(pwmout_t* obj) {
mbed_official 76:aeb1df146756 178 float value = 0;
mbed_official 76:aeb1df146756 179 if (obj->period > 0) {
mbed_official 76:aeb1df146756 180 value = (float)(obj->pulse) / (float)(obj->period);
mbed_official 76:aeb1df146756 181 }
mbed_official 76:aeb1df146756 182 return ((value > 1.0) ? (1.0) : (value));
mbed_official 76:aeb1df146756 183 }
mbed_official 76:aeb1df146756 184
mbed_official 76:aeb1df146756 185 void pwmout_period(pwmout_t* obj, float seconds) {
mbed_official 76:aeb1df146756 186 pwmout_period_us(obj, seconds * 1000000.0f);
mbed_official 76:aeb1df146756 187 }
mbed_official 76:aeb1df146756 188
mbed_official 76:aeb1df146756 189 void pwmout_period_ms(pwmout_t* obj, int ms) {
mbed_official 76:aeb1df146756 190 pwmout_period_us(obj, ms * 1000);
mbed_official 76:aeb1df146756 191 }
mbed_official 76:aeb1df146756 192
mbed_official 76:aeb1df146756 193 void pwmout_period_us(pwmout_t* obj, int us) {
mbed_official 76:aeb1df146756 194 TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm);
mbed_official 76:aeb1df146756 195 TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
mbed_official 76:aeb1df146756 196 float dc = pwmout_read(obj);
mbed_official 76:aeb1df146756 197
mbed_official 174:8bb9f3a33240 198 TIM_Cmd(tim, DISABLE);
mbed_official 174:8bb9f3a33240 199
mbed_official 76:aeb1df146756 200 obj->period = us;
mbed_official 174:8bb9f3a33240 201
mbed_official 129:0182c99221bc 202 TIM_TimeBaseStructure.TIM_Period = obj->period - 1;
mbed_official 129:0182c99221bc 203 TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
mbed_official 76:aeb1df146756 204 TIM_TimeBaseStructure.TIM_ClockDivision = 0;
mbed_official 129:0182c99221bc 205 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
mbed_official 76:aeb1df146756 206 TIM_TimeBaseInit(tim, &TIM_TimeBaseStructure);
mbed_official 76:aeb1df146756 207
mbed_official 76:aeb1df146756 208 // Set duty cycle again
mbed_official 76:aeb1df146756 209 pwmout_write(obj, dc);
mbed_official 174:8bb9f3a33240 210
mbed_official 174:8bb9f3a33240 211 TIM_ARRPreloadConfig(tim, ENABLE);
mbed_official 76:aeb1df146756 212 TIM_Cmd(tim, ENABLE);
mbed_official 76:aeb1df146756 213 }
mbed_official 76:aeb1df146756 214
mbed_official 76:aeb1df146756 215 void pwmout_pulsewidth(pwmout_t* obj, float seconds) {
mbed_official 76:aeb1df146756 216 pwmout_pulsewidth_us(obj, seconds * 1000000.0f);
mbed_official 76:aeb1df146756 217 }
mbed_official 76:aeb1df146756 218
mbed_official 76:aeb1df146756 219 void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) {
mbed_official 76:aeb1df146756 220 pwmout_pulsewidth_us(obj, ms * 1000);
mbed_official 76:aeb1df146756 221 }
mbed_official 76:aeb1df146756 222
mbed_official 76:aeb1df146756 223 void pwmout_pulsewidth_us(pwmout_t* obj, int us) {
mbed_official 76:aeb1df146756 224 float value = (float)us / (float)obj->period;
mbed_official 76:aeb1df146756 225 pwmout_write(obj, value);
mbed_official 76:aeb1df146756 226 }
mbed_official 174:8bb9f3a33240 227
mbed_official 174:8bb9f3a33240 228 #endif