Stuart Northfield / mbed-src

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targets/hal/TARGET_STM/TARGET_DISCO_F429ZI/pwmout_api.c@344:ed24f9926218, 2014-10-13 (annotated)

Committer:
mbed_official
Date:
Mon Oct 13 08:00:07 2014 +0100
Revision:
344:ed24f9926218
Parent:
340:28d1f895c6fe 
Synchronized with git revision 342790b0c3be997d6ed3744962729c4d9c6a9a39



Full URL: https://github.com/mbedmicro/mbed/commit/342790b0c3be997d6ed3744962729c4d9c6a9a39/



HAL: Disco_F429ZI - extensions of interrupt vectors, pin names and pin functions

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 340:28d1f895c6fe 1 /* mbed Microcontroller Library
mbed_official 340:28d1f895c6fe 2 *******************************************************************************
mbed_official 340:28d1f895c6fe 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 340:28d1f895c6fe 4 * All rights reserved.
mbed_official 340:28d1f895c6fe 5 *
mbed_official 340:28d1f895c6fe 6 * Redistribution and use in source and binary forms, with or without
mbed_official 340:28d1f895c6fe 7 * modification, are permitted provided that the following conditions are met:
mbed_official 340:28d1f895c6fe 8 *
mbed_official 340:28d1f895c6fe 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 340:28d1f895c6fe 10 * this list of conditions and the following disclaimer.
mbed_official 340:28d1f895c6fe 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 340:28d1f895c6fe 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 340:28d1f895c6fe 13 * and/or other materials provided with the distribution.
mbed_official 340:28d1f895c6fe 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 340:28d1f895c6fe 15 * may be used to endorse or promote products derived from this software
mbed_official 340:28d1f895c6fe 16 * without specific prior written permission.
mbed_official 340:28d1f895c6fe 17 *
mbed_official 340:28d1f895c6fe 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 340:28d1f895c6fe 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 340:28d1f895c6fe 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 340:28d1f895c6fe 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 340:28d1f895c6fe 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 340:28d1f895c6fe 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 340:28d1f895c6fe 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 340:28d1f895c6fe 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 340:28d1f895c6fe 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 340:28d1f895c6fe 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 340:28d1f895c6fe 28 *******************************************************************************
mbed_official 340:28d1f895c6fe 29 */
mbed_official 340:28d1f895c6fe 30 #include "pwmout_api.h"
mbed_official 340:28d1f895c6fe 31
mbed_official 340:28d1f895c6fe 32 #if DEVICE_PWMOUT
mbed_official 340:28d1f895c6fe 33
mbed_official 340:28d1f895c6fe 34 #include "cmsis.h"
mbed_official 340:28d1f895c6fe 35 #include "pinmap.h"
mbed_official 340:28d1f895c6fe 36 #include "mbed_error.h"
mbed_official 340:28d1f895c6fe 37
mbed_official 340:28d1f895c6fe 38 // TIM5 cannot be used because already used by the us_ticker
mbed_official 340:28d1f895c6fe 39 static const PinMap PinMap_PWM[] = {
mbed_official 344:ed24f9926218 40 /*
mbed_official 344:ed24f9926218 41 * The lines below show all combinations to conect a port pin with a timer. Commented
mbed_official 344:ed24f9926218 42 * lines are alternative possibilities not used per default. But they can be changed
mbed_official 344:ed24f9926218 43 * manually instead of the suggested configuration. For example you can see that on
mbed_official 344:ed24f9926218 44 * PA_5 you can have a PWM using either Timer2/Channel1 or Timer8/Channel1N. Today I
mbed_official 344:ed24f9926218 45 * have decided to use Timer2/Channel1. But you can also notice that Timer2/Channel1
mbed_official 344:ed24f9926218 46 * is also used on PA_0. That means that today you cannot output two different PWM
mbed_official 344:ed24f9926218 47 * signals on PA_0 and PA_5 at the same time. If someone wants this, he will need to
mbed_official 344:ed24f9926218 48 * change the timer that is used on PA_5. This is why the other possibilities are
mbed_official 344:ed24f9926218 49 * commented to make this change easier without looking deeply into the mcu datasheet.
mbed_official 344:ed24f9926218 50 */
mbed_official 340:28d1f895c6fe 51 {PA_0, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1
mbed_official 340:28d1f895c6fe 52 {PA_1, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2
mbed_official 340:28d1f895c6fe 53 {PA_2, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3
mbed_official 340:28d1f895c6fe 54 // {PA_2, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH1
mbed_official 340:28d1f895c6fe 55 {PA_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH4
mbed_official 340:28d1f895c6fe 56 // {PA_3, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH2
mbed_official 340:28d1f895c6fe 57 {PA_5, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1
mbed_official 344:ed24f9926218 58 // {PA_5, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM8)}, // TIM8_CH1N
mbed_official 340:28d1f895c6fe 59 {PA_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1
mbed_official 344:ed24f9926218 60 {PA_7, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N
mbed_official 344:ed24f9926218 61 // {PA_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2
mbed_official 344:ed24f9926218 62 // {PA_7, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH1N
mbed_official 340:28d1f895c6fe 63 {PA_8, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1
mbed_official 340:28d1f895c6fe 64 {PA_9, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2
mbed_official 340:28d1f895c6fe 65 {PA_10, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3
mbed_official 340:28d1f895c6fe 66 {PA_11, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH4
mbed_official 340:28d1f895c6fe 67 {PA_15, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1
mbed_official 340:28d1f895c6fe 68
mbed_official 340:28d1f895c6fe 69 {PB_0, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N
mbed_official 340:28d1f895c6fe 70 // {PB_0, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3
mbed_official 344:ed24f9926218 71 // {PB_0, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH2N
mbed_official 340:28d1f895c6fe 72 {PB_1, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N
mbed_official 340:28d1f895c6fe 73 // {PB_1, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4
mbed_official 344:ed24f9926218 74 // {PB_1, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH3N
mbed_official 344:ed24f9926218 75 {PB_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2
mbed_official 344:ed24f9926218 76 {PB_4, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1
mbed_official 340:28d1f895c6fe 77 {PB_5, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2
mbed_official 344:ed24f9926218 78 {PB_6, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH1
mbed_official 340:28d1f895c6fe 79 {PB_7, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH2
mbed_official 340:28d1f895c6fe 80 {PB_8, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH3
mbed_official 340:28d1f895c6fe 81 // {PB_8, PWM_10,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM10)}, // TIM10_CH1
mbed_official 340:28d1f895c6fe 82 {PB_9, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH4
mbed_official 340:28d1f895c6fe 83 // {PB_9, PWM_11,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM11)}, // TIM11_CH1
mbed_official 344:ed24f9926218 84 {PB_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3
mbed_official 344:ed24f9926218 85 {PB_11, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH4
mbed_official 340:28d1f895c6fe 86 {PB_13, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N
mbed_official 340:28d1f895c6fe 87 {PB_14, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N
mbed_official 344:ed24f9926218 88 // {PB_14, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH2N
mbed_official 340:28d1f895c6fe 89 {PB_15, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N
mbed_official 344:ed24f9926218 90 // {PB_15, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM1_CH3N
mbed_official 340:28d1f895c6fe 91
mbed_official 340:28d1f895c6fe 92 {PC_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1
mbed_official 344:ed24f9926218 93 // {PC_6, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH1
mbed_official 344:ed24f9926218 94 {PC_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2
mbed_official 344:ed24f9926218 95 // {PC_7, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH2
mbed_official 340:28d1f895c6fe 96 {PC_8, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3
mbed_official 344:ed24f9926218 97 // {PC_8, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH3
mbed_official 340:28d1f895c6fe 98 {PC_9, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4
mbed_official 344:ed24f9926218 99 // {PC_9, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH4
mbed_official 344:ed24f9926218 100
mbed_official 344:ed24f9926218 101 {PD_6, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH1
mbed_official 344:ed24f9926218 102 {PD_7, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH2
mbed_official 344:ed24f9926218 103 {PD_8, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH3
mbed_official 344:ed24f9926218 104 {PD_9, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH4
mbed_official 344:ed24f9926218 105
mbed_official 344:ed24f9926218 106 {PE_5, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH1
mbed_official 344:ed24f9926218 107 {PE_6, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH2
mbed_official 344:ed24f9926218 108
mbed_official 344:ed24f9926218 109 {PE_8, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N
mbed_official 344:ed24f9926218 110 {PE_9, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1
mbed_official 344:ed24f9926218 111 {PE_10, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N
mbed_official 344:ed24f9926218 112 {PE_11, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2
mbed_official 344:ed24f9926218 113 {PE_12, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N
mbed_official 344:ed24f9926218 114 {PE_13, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3
mbed_official 344:ed24f9926218 115 {PE_14, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH4
mbed_official 344:ed24f9926218 116
mbed_official 344:ed24f9926218 117 {PH_13, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH1N
mbed_official 344:ed24f9926218 118 {PH_14, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH2N
mbed_official 344:ed24f9926218 119 {PH_15, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH3N
mbed_official 344:ed24f9926218 120
mbed_official 344:ed24f9926218 121 {PI_2, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH4
mbed_official 344:ed24f9926218 122 {PI_5, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH1
mbed_official 344:ed24f9926218 123 {PI_6, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH2
mbed_official 344:ed24f9926218 124 {PI_7, PWM_8, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM8)}, // TIM8_CH3
mbed_official 340:28d1f895c6fe 125
mbed_official 340:28d1f895c6fe 126 {NC, NC, 0}
mbed_official 340:28d1f895c6fe 127 };
mbed_official 340:28d1f895c6fe 128
mbed_official 340:28d1f895c6fe 129 static TIM_HandleTypeDef TimHandle;
mbed_official 340:28d1f895c6fe 130
mbed_official 340:28d1f895c6fe 131 void pwmout_init(pwmout_t* obj, PinName pin)
mbed_official 340:28d1f895c6fe 132 {
mbed_official 340:28d1f895c6fe 133 // Get the peripheral name from the pin and assign it to the object
mbed_official 340:28d1f895c6fe 134 obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
mbed_official 340:28d1f895c6fe 135
mbed_official 340:28d1f895c6fe 136 if (obj->pwm == (PWMName)NC) {
mbed_official 340:28d1f895c6fe 137 error("PWM error: pinout mapping failed.");
mbed_official 340:28d1f895c6fe 138 }
mbed_official 340:28d1f895c6fe 139
mbed_official 340:28d1f895c6fe 140 // Enable TIM clock
mbed_official 340:28d1f895c6fe 141 if (obj->pwm == PWM_1) __TIM1_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 142 if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 143 if (obj->pwm == PWM_3) __TIM3_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 144 if (obj->pwm == PWM_4) __TIM4_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 145 if (obj->pwm == PWM_9) __TIM9_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 146 if (obj->pwm == PWM_10) __TIM10_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 147 if (obj->pwm == PWM_11) __TIM11_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 148
mbed_official 340:28d1f895c6fe 149 // Configure GPIO
mbed_official 340:28d1f895c6fe 150 pinmap_pinout(pin, PinMap_PWM);
mbed_official 340:28d1f895c6fe 151
mbed_official 340:28d1f895c6fe 152 obj->pin = pin;
mbed_official 340:28d1f895c6fe 153 obj->period = 0;
mbed_official 340:28d1f895c6fe 154 obj->pulse = 0;
mbed_official 340:28d1f895c6fe 155
mbed_official 340:28d1f895c6fe 156 pwmout_period_us(obj, 20000); // 20 ms per default
mbed_official 340:28d1f895c6fe 157 }
mbed_official 340:28d1f895c6fe 158
mbed_official 340:28d1f895c6fe 159 void pwmout_free(pwmout_t* obj)
mbed_official 340:28d1f895c6fe 160 {
mbed_official 340:28d1f895c6fe 161 // Configure GPIO
mbed_official 340:28d1f895c6fe 162 pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 340:28d1f895c6fe 163 }
mbed_official 340:28d1f895c6fe 164
mbed_official 340:28d1f895c6fe 165 void pwmout_write(pwmout_t* obj, float value)
mbed_official 340:28d1f895c6fe 166 {
mbed_official 340:28d1f895c6fe 167 TIM_OC_InitTypeDef sConfig;
mbed_official 340:28d1f895c6fe 168 int channel = 0;
mbed_official 340:28d1f895c6fe 169 int complementary_channel = 0;
mbed_official 340:28d1f895c6fe 170
mbed_official 340:28d1f895c6fe 171 TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
mbed_official 340:28d1f895c6fe 172
mbed_official 340:28d1f895c6fe 173 if (value < (float)0.0) {
mbed_official 340:28d1f895c6fe 174 value = 0.0;
mbed_official 340:28d1f895c6fe 175 } else if (value > (float)1.0) {
mbed_official 340:28d1f895c6fe 176 value = 1.0;
mbed_official 340:28d1f895c6fe 177 }
mbed_official 340:28d1f895c6fe 178
mbed_official 340:28d1f895c6fe 179 obj->pulse = (uint32_t)((float)obj->period * value);
mbed_official 340:28d1f895c6fe 180
mbed_official 340:28d1f895c6fe 181 // Configure channels
mbed_official 340:28d1f895c6fe 182 sConfig.OCMode = TIM_OCMODE_PWM1;
mbed_official 340:28d1f895c6fe 183 sConfig.Pulse = obj->pulse;
mbed_official 340:28d1f895c6fe 184 sConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
mbed_official 340:28d1f895c6fe 185 sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
mbed_official 340:28d1f895c6fe 186 sConfig.OCFastMode = TIM_OCFAST_DISABLE;
mbed_official 340:28d1f895c6fe 187 sConfig.OCIdleState = TIM_OCIDLESTATE_RESET;
mbed_official 340:28d1f895c6fe 188 sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
mbed_official 340:28d1f895c6fe 189
mbed_official 340:28d1f895c6fe 190 switch (obj->pin) {
mbed_official 340:28d1f895c6fe 191
mbed_official 340:28d1f895c6fe 192 // Channels 1
mbed_official 340:28d1f895c6fe 193 case PA_0:
mbed_official 340:28d1f895c6fe 194 case PA_5:
mbed_official 340:28d1f895c6fe 195 case PA_6:
mbed_official 340:28d1f895c6fe 196 case PA_8:
mbed_official 340:28d1f895c6fe 197 case PA_15:
mbed_official 340:28d1f895c6fe 198 case PB_4:
mbed_official 340:28d1f895c6fe 199 case PB_6:
mbed_official 340:28d1f895c6fe 200 case PC_6:
mbed_official 340:28d1f895c6fe 201 channel = TIM_CHANNEL_1;
mbed_official 340:28d1f895c6fe 202 break;
mbed_official 340:28d1f895c6fe 203
mbed_official 340:28d1f895c6fe 204 // Channels 1N
mbed_official 340:28d1f895c6fe 205 case PA_7:
mbed_official 340:28d1f895c6fe 206 case PB_13:
mbed_official 340:28d1f895c6fe 207 channel = TIM_CHANNEL_1;
mbed_official 340:28d1f895c6fe 208 complementary_channel = 1;
mbed_official 340:28d1f895c6fe 209 break;
mbed_official 340:28d1f895c6fe 210
mbed_official 340:28d1f895c6fe 211 // Channels 2
mbed_official 340:28d1f895c6fe 212 case PA_1:
mbed_official 340:28d1f895c6fe 213 case PA_9:
mbed_official 340:28d1f895c6fe 214 case PB_3:
mbed_official 340:28d1f895c6fe 215 case PB_5:
mbed_official 340:28d1f895c6fe 216 case PB_7:
mbed_official 340:28d1f895c6fe 217 case PC_7:
mbed_official 340:28d1f895c6fe 218 channel = TIM_CHANNEL_2;
mbed_official 340:28d1f895c6fe 219 break;
mbed_official 340:28d1f895c6fe 220
mbed_official 340:28d1f895c6fe 221 // Channels 2N
mbed_official 340:28d1f895c6fe 222 case PB_0:
mbed_official 340:28d1f895c6fe 223 case PB_14:
mbed_official 340:28d1f895c6fe 224 channel = TIM_CHANNEL_2;
mbed_official 340:28d1f895c6fe 225 complementary_channel = 1;
mbed_official 340:28d1f895c6fe 226 break;
mbed_official 340:28d1f895c6fe 227
mbed_official 340:28d1f895c6fe 228 // Channels 3
mbed_official 340:28d1f895c6fe 229 case PA_2:
mbed_official 340:28d1f895c6fe 230 case PA_10:
mbed_official 340:28d1f895c6fe 231 case PB_8:
mbed_official 340:28d1f895c6fe 232 case PB_10:
mbed_official 340:28d1f895c6fe 233 case PC_8:
mbed_official 340:28d1f895c6fe 234 channel = TIM_CHANNEL_3;
mbed_official 340:28d1f895c6fe 235 break;
mbed_official 340:28d1f895c6fe 236
mbed_official 340:28d1f895c6fe 237 // Channels 3N
mbed_official 340:28d1f895c6fe 238 case PB_1:
mbed_official 340:28d1f895c6fe 239 case PB_15:
mbed_official 340:28d1f895c6fe 240 channel = TIM_CHANNEL_3;
mbed_official 340:28d1f895c6fe 241 complementary_channel = 1;
mbed_official 340:28d1f895c6fe 242 break;
mbed_official 340:28d1f895c6fe 243
mbed_official 340:28d1f895c6fe 244 // Channels 4
mbed_official 340:28d1f895c6fe 245 case PA_3:
mbed_official 340:28d1f895c6fe 246 case PA_11:
mbed_official 340:28d1f895c6fe 247 case PB_9:
mbed_official 340:28d1f895c6fe 248 case PC_9:
mbed_official 340:28d1f895c6fe 249 channel = TIM_CHANNEL_4;
mbed_official 340:28d1f895c6fe 250 break;
mbed_official 340:28d1f895c6fe 251
mbed_official 340:28d1f895c6fe 252 default:
mbed_official 340:28d1f895c6fe 253 return;
mbed_official 340:28d1f895c6fe 254 }
mbed_official 340:28d1f895c6fe 255
mbed_official 340:28d1f895c6fe 256 HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, channel);
mbed_official 340:28d1f895c6fe 257 if (complementary_channel) {
mbed_official 340:28d1f895c6fe 258 HAL_TIMEx_PWMN_Start(&TimHandle, channel);
mbed_official 340:28d1f895c6fe 259 } else {
mbed_official 340:28d1f895c6fe 260 HAL_TIM_PWM_Start(&TimHandle, channel);
mbed_official 340:28d1f895c6fe 261 }
mbed_official 340:28d1f895c6fe 262 }
mbed_official 340:28d1f895c6fe 263
mbed_official 340:28d1f895c6fe 264 float pwmout_read(pwmout_t* obj)
mbed_official 340:28d1f895c6fe 265 {
mbed_official 340:28d1f895c6fe 266 float value = 0;
mbed_official 340:28d1f895c6fe 267 if (obj->period > 0) {
mbed_official 340:28d1f895c6fe 268 value = (float)(obj->pulse) / (float)(obj->period);
mbed_official 340:28d1f895c6fe 269 }
mbed_official 340:28d1f895c6fe 270 return ((value > (float)1.0) ? (float)(1.0) : (value));
mbed_official 340:28d1f895c6fe 271 }
mbed_official 340:28d1f895c6fe 272
mbed_official 340:28d1f895c6fe 273 void pwmout_period(pwmout_t* obj, float seconds)
mbed_official 340:28d1f895c6fe 274 {
mbed_official 340:28d1f895c6fe 275 pwmout_period_us(obj, seconds * 1000000.0f);
mbed_official 340:28d1f895c6fe 276 }
mbed_official 340:28d1f895c6fe 277
mbed_official 340:28d1f895c6fe 278 void pwmout_period_ms(pwmout_t* obj, int ms)
mbed_official 340:28d1f895c6fe 279 {
mbed_official 340:28d1f895c6fe 280 pwmout_period_us(obj, ms * 1000);
mbed_official 340:28d1f895c6fe 281 }
mbed_official 340:28d1f895c6fe 282
mbed_official 340:28d1f895c6fe 283 void pwmout_period_us(pwmout_t* obj, int us)
mbed_official 340:28d1f895c6fe 284 {
mbed_official 340:28d1f895c6fe 285 TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
mbed_official 340:28d1f895c6fe 286
mbed_official 340:28d1f895c6fe 287 float dc = pwmout_read(obj);
mbed_official 340:28d1f895c6fe 288
mbed_official 340:28d1f895c6fe 289 __HAL_TIM_DISABLE(&TimHandle);
mbed_official 340:28d1f895c6fe 290
mbed_official 340:28d1f895c6fe 291 // Update the SystemCoreClock variable
mbed_official 340:28d1f895c6fe 292 SystemCoreClockUpdate();
mbed_official 340:28d1f895c6fe 293
mbed_official 340:28d1f895c6fe 294 TimHandle.Init.Period = us - 1;
mbed_official 340:28d1f895c6fe 295 TimHandle.Init.Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
mbed_official 340:28d1f895c6fe 296 TimHandle.Init.ClockDivision = 0;
mbed_official 340:28d1f895c6fe 297 TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
mbed_official 340:28d1f895c6fe 298 HAL_TIM_PWM_Init(&TimHandle);
mbed_official 340:28d1f895c6fe 299
mbed_official 340:28d1f895c6fe 300 // Set duty cycle again
mbed_official 340:28d1f895c6fe 301 pwmout_write(obj, dc);
mbed_official 340:28d1f895c6fe 302
mbed_official 340:28d1f895c6fe 303 // Save for future use
mbed_official 340:28d1f895c6fe 304 obj->period = us;
mbed_official 340:28d1f895c6fe 305
mbed_official 340:28d1f895c6fe 306 __HAL_TIM_ENABLE(&TimHandle);
mbed_official 340:28d1f895c6fe 307 }
mbed_official 340:28d1f895c6fe 308
mbed_official 340:28d1f895c6fe 309 void pwmout_pulsewidth(pwmout_t* obj, float seconds)
mbed_official 340:28d1f895c6fe 310 {
mbed_official 340:28d1f895c6fe 311 pwmout_pulsewidth_us(obj, seconds * 1000000.0f);
mbed_official 340:28d1f895c6fe 312 }
mbed_official 340:28d1f895c6fe 313
mbed_official 340:28d1f895c6fe 314 void pwmout_pulsewidth_ms(pwmout_t* obj, int ms)
mbed_official 340:28d1f895c6fe 315 {
mbed_official 340:28d1f895c6fe 316 pwmout_pulsewidth_us(obj, ms * 1000);
mbed_official 340:28d1f895c6fe 317 }
mbed_official 340:28d1f895c6fe 318
mbed_official 340:28d1f895c6fe 319 void pwmout_pulsewidth_us(pwmout_t* obj, int us)
mbed_official 340:28d1f895c6fe 320 {
mbed_official 340:28d1f895c6fe 321 float value = (float)us / (float)obj->period;
mbed_official 340:28d1f895c6fe 322 pwmout_write(obj, value);
mbed_official 340:28d1f895c6fe 323 }
mbed_official 340:28d1f895c6fe 324
mbed_official 340:28d1f895c6fe 325 #endif