mbed library sources
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targets/hal/TARGET_STM/TARGET_STM32F407VG/pwmout_api.c@296:ec1b66a3d094, 2014-08-21 (annotated)
- Committer:
- mbed_official
- Date:
- Thu Aug 21 15:00:08 2014 +0100
- Revision:
- 296:ec1b66a3d094
- Parent:
- targets/hal/TARGET_STM/TARGET_DISCO_F407VG/pwmout_api.c@285:31249416b6f9
Synchronized with git revision bbc120c4786e99dfa586e7a13f8638064f1e5938
Full URL: https://github.com/mbedmicro/mbed/commit/bbc120c4786e99dfa586e7a13f8638064f1e5938/
DISCO_F407VG - add USBDevice support and a variant - ARCH_MAX
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 133:d4dda5c437f0 | 1 | /* mbed Microcontroller Library |
mbed_official | 133:d4dda5c437f0 | 2 | ******************************************************************************* |
mbed_official | 133:d4dda5c437f0 | 3 | * Copyright (c) 2014, STMicroelectronics |
mbed_official | 133:d4dda5c437f0 | 4 | * All rights reserved. |
mbed_official | 133:d4dda5c437f0 | 5 | * |
mbed_official | 133:d4dda5c437f0 | 6 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 133:d4dda5c437f0 | 7 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 133:d4dda5c437f0 | 8 | * |
mbed_official | 133:d4dda5c437f0 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 133:d4dda5c437f0 | 10 | * this list of conditions and the following disclaimer. |
mbed_official | 133:d4dda5c437f0 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 133:d4dda5c437f0 | 12 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 133:d4dda5c437f0 | 13 | * and/or other materials provided with the distribution. |
mbed_official | 133:d4dda5c437f0 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 133:d4dda5c437f0 | 15 | * may be used to endorse or promote products derived from this software |
mbed_official | 133:d4dda5c437f0 | 16 | * without specific prior written permission. |
mbed_official | 133:d4dda5c437f0 | 17 | * |
mbed_official | 133:d4dda5c437f0 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 133:d4dda5c437f0 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 133:d4dda5c437f0 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 133:d4dda5c437f0 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 133:d4dda5c437f0 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 133:d4dda5c437f0 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 133:d4dda5c437f0 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 133:d4dda5c437f0 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 133:d4dda5c437f0 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 133:d4dda5c437f0 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 133:d4dda5c437f0 | 28 | ******************************************************************************* |
mbed_official | 133:d4dda5c437f0 | 29 | */ |
mbed_official | 133:d4dda5c437f0 | 30 | #include "pwmout_api.h" |
mbed_official | 133:d4dda5c437f0 | 31 | |
mbed_official | 242:7074e42da0b2 | 32 | #if DEVICE_PWMOUT |
mbed_official | 242:7074e42da0b2 | 33 | |
mbed_official | 133:d4dda5c437f0 | 34 | #include "cmsis.h" |
mbed_official | 133:d4dda5c437f0 | 35 | #include "pinmap.h" |
mbed_official | 285:31249416b6f9 | 36 | #include "mbed_error.h" |
mbed_official | 133:d4dda5c437f0 | 37 | |
mbed_official | 133:d4dda5c437f0 | 38 | // TIM5 cannot be used because already used by the us_ticker |
mbed_official | 133:d4dda5c437f0 | 39 | static const PinMap PinMap_PWM[] = { |
mbed_official | 133:d4dda5c437f0 | 40 | {PA_0, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 |
mbed_official | 242:7074e42da0b2 | 41 | // {PA_0, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH1 |
mbed_official | 133:d4dda5c437f0 | 42 | {PA_1, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2 |
mbed_official | 242:7074e42da0b2 | 43 | // {PA_1, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH2 |
mbed_official | 133:d4dda5c437f0 | 44 | {PA_2, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3 |
mbed_official | 242:7074e42da0b2 | 45 | // {PA_2, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH3 |
mbed_official | 242:7074e42da0b2 | 46 | // {PA_2, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH1 |
mbed_official | 159:3b23f6d9ecb9 | 47 | {PA_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH4 |
mbed_official | 242:7074e42da0b2 | 48 | // {PA_3, PWM_5, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM5)}, // TIM5_CH4 |
mbed_official | 242:7074e42da0b2 | 49 | // {PA_3, PWM_9, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM9)}, // TIM9_CH2 |
mbed_official | 133:d4dda5c437f0 | 50 | {PA_5, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 |
mbed_official | 133:d4dda5c437f0 | 51 | {PA_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 |
mbed_official | 133:d4dda5c437f0 | 52 | {PA_7, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N |
mbed_official | 242:7074e42da0b2 | 53 | // {PA_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 |
mbed_official | 133:d4dda5c437f0 | 54 | {PA_8, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1 |
mbed_official | 133:d4dda5c437f0 | 55 | {PA_9, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2 |
mbed_official | 133:d4dda5c437f0 | 56 | {PA_10, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3 |
mbed_official | 133:d4dda5c437f0 | 57 | {PA_11, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH4 |
mbed_official | 133:d4dda5c437f0 | 58 | {PA_15, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH1 |
mbed_official | 133:d4dda5c437f0 | 59 | |
mbed_official | 133:d4dda5c437f0 | 60 | {PB_0, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N |
mbed_official | 242:7074e42da0b2 | 61 | // {PB_0, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3 |
mbed_official | 133:d4dda5c437f0 | 62 | {PB_1, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N |
mbed_official | 242:7074e42da0b2 | 63 | // {PB_1, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4 |
mbed_official | 133:d4dda5c437f0 | 64 | {PB_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH2 |
mbed_official | 133:d4dda5c437f0 | 65 | {PB_4, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 |
mbed_official | 133:d4dda5c437f0 | 66 | {PB_5, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 |
mbed_official | 133:d4dda5c437f0 | 67 | {PB_6, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH1 |
mbed_official | 133:d4dda5c437f0 | 68 | {PB_7, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH2 |
mbed_official | 133:d4dda5c437f0 | 69 | {PB_8, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH3 |
mbed_official | 242:7074e42da0b2 | 70 | // {PB_8, PWM_10,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM10)}, // TIM10_CH1 |
mbed_official | 133:d4dda5c437f0 | 71 | {PB_9, PWM_4, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM4)}, // TIM4_CH4 |
mbed_official | 242:7074e42da0b2 | 72 | // {PB_9, PWM_11,STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF3_TIM11)}, // TIM11_CH1 |
mbed_official | 133:d4dda5c437f0 | 73 | {PB_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM2)}, // TIM2_CH3 |
mbed_official | 133:d4dda5c437f0 | 74 | {PB_13, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH1N |
mbed_official | 133:d4dda5c437f0 | 75 | {PB_14, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH2N |
mbed_official | 133:d4dda5c437f0 | 76 | {PB_15, PWM_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF1_TIM1)}, // TIM1_CH3N |
mbed_official | 133:d4dda5c437f0 | 77 | |
mbed_official | 133:d4dda5c437f0 | 78 | {PC_6, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH1 |
mbed_official | 133:d4dda5c437f0 | 79 | {PC_7, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH2 |
mbed_official | 133:d4dda5c437f0 | 80 | {PC_8, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH3 |
mbed_official | 159:3b23f6d9ecb9 | 81 | {PC_9, PWM_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM3)}, // TIM3_CH4 |
mbed_official | 133:d4dda5c437f0 | 82 | |
mbed_official | 133:d4dda5c437f0 | 83 | {NC, NC, 0} |
mbed_official | 133:d4dda5c437f0 | 84 | }; |
mbed_official | 133:d4dda5c437f0 | 85 | |
mbed_official | 133:d4dda5c437f0 | 86 | static TIM_HandleTypeDef TimHandle; |
mbed_official | 242:7074e42da0b2 | 87 | static uint8_t ClockDivider; |
mbed_official | 242:7074e42da0b2 | 88 | /* 0, 1, 2, 3, 4, 5, 6, 7 */ |
mbed_official | 242:7074e42da0b2 | 89 | const uint8_t APBxPrescTable[]={ 0, 0, 0, 0, 1, 2, 3, 4 }; |
mbed_official | 242:7074e42da0b2 | 90 | extern const uint8_t AHBPrescTable[]; |
mbed_official | 133:d4dda5c437f0 | 91 | |
mbed_official | 133:d4dda5c437f0 | 92 | void pwmout_init(pwmout_t* obj, PinName pin) { |
mbed_official | 133:d4dda5c437f0 | 93 | // Get the peripheral name from the pin and assign it to the object |
mbed_official | 133:d4dda5c437f0 | 94 | obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM); |
mbed_official | 242:7074e42da0b2 | 95 | |
mbed_official | 242:7074e42da0b2 | 96 | if (obj->pwm == (PWMName)NC) { |
mbed_official | 242:7074e42da0b2 | 97 | error("PWM error: pinout mapping failed."); |
mbed_official | 242:7074e42da0b2 | 98 | } |
mbed_official | 227:7bd0639b8911 | 99 | |
mbed_official | 133:d4dda5c437f0 | 100 | // Enable TIM clock |
mbed_official | 242:7074e42da0b2 | 101 | /* APB1 Timers */ |
mbed_official | 133:d4dda5c437f0 | 102 | if (obj->pwm == PWM_2) __TIM2_CLK_ENABLE(); |
mbed_official | 133:d4dda5c437f0 | 103 | if (obj->pwm == PWM_3) __TIM3_CLK_ENABLE(); |
mbed_official | 133:d4dda5c437f0 | 104 | if (obj->pwm == PWM_4) __TIM4_CLK_ENABLE(); |
mbed_official | 242:7074e42da0b2 | 105 | /* APB2 Timers */ |
mbed_official | 242:7074e42da0b2 | 106 | if (obj->pwm == PWM_1) __TIM1_CLK_ENABLE(); |
mbed_official | 242:7074e42da0b2 | 107 | if (obj->pwm == PWM_9) __TIM9_CLK_ENABLE(); |
mbed_official | 133:d4dda5c437f0 | 108 | if (obj->pwm == PWM_10) __TIM10_CLK_ENABLE(); |
mbed_official | 133:d4dda5c437f0 | 109 | if (obj->pwm == PWM_11) __TIM11_CLK_ENABLE(); |
mbed_official | 242:7074e42da0b2 | 110 | /* Decide APBx divider for timer base clock |
mbed_official | 242:7074e42da0b2 | 111 | * Auto detect the Clockdivider value according to AHB,APB1 and APB2 prescaler register. |
mbed_official | 242:7074e42da0b2 | 112 | */ |
mbed_official | 242:7074e42da0b2 | 113 | ClockDivider = AHBPrescTable[ ( ( RCC->CFGR & RCC_CFGR_HPRE ) >> 4 ) ]; |
mbed_official | 242:7074e42da0b2 | 114 | switch( obj->pwm ) { |
mbed_official | 242:7074e42da0b2 | 115 | /* APB1 low clock */ |
mbed_official | 242:7074e42da0b2 | 116 | case PWM_2: |
mbed_official | 242:7074e42da0b2 | 117 | case PWM_3: |
mbed_official | 242:7074e42da0b2 | 118 | case PWM_4: |
mbed_official | 242:7074e42da0b2 | 119 | ClockDivider += APBxPrescTable[ ( (RCC->CFGR & RCC_CFGR_PPRE1 ) >> 13 ) ]; |
mbed_official | 242:7074e42da0b2 | 120 | break; |
mbed_official | 242:7074e42da0b2 | 121 | /* APB2 fast clock */ |
mbed_official | 242:7074e42da0b2 | 122 | case PWM_1: |
mbed_official | 242:7074e42da0b2 | 123 | case PWM_9: |
mbed_official | 242:7074e42da0b2 | 124 | case PWM_10: |
mbed_official | 242:7074e42da0b2 | 125 | case PWM_11: |
mbed_official | 242:7074e42da0b2 | 126 | ClockDivider += APBxPrescTable[ ( (RCC->CFGR & RCC_CFGR_PPRE2 ) >> 10 ) ]; |
mbed_official | 242:7074e42da0b2 | 127 | break; |
mbed_official | 242:7074e42da0b2 | 128 | default: |
mbed_official | 242:7074e42da0b2 | 129 | break; |
mbed_official | 242:7074e42da0b2 | 130 | } |
mbed_official | 133:d4dda5c437f0 | 131 | |
mbed_official | 133:d4dda5c437f0 | 132 | // Configure GPIO |
mbed_official | 133:d4dda5c437f0 | 133 | pinmap_pinout(pin, PinMap_PWM); |
mbed_official | 133:d4dda5c437f0 | 134 | |
mbed_official | 133:d4dda5c437f0 | 135 | obj->pin = pin; |
mbed_official | 133:d4dda5c437f0 | 136 | obj->period = 0; |
mbed_official | 133:d4dda5c437f0 | 137 | obj->pulse = 0; |
mbed_official | 133:d4dda5c437f0 | 138 | |
mbed_official | 133:d4dda5c437f0 | 139 | pwmout_period_us(obj, 20000); // 20 ms per default |
mbed_official | 133:d4dda5c437f0 | 140 | } |
mbed_official | 133:d4dda5c437f0 | 141 | |
mbed_official | 133:d4dda5c437f0 | 142 | void pwmout_free(pwmout_t* obj) { |
mbed_official | 242:7074e42da0b2 | 143 | // Configure GPIO |
mbed_official | 133:d4dda5c437f0 | 144 | pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0)); |
mbed_official | 133:d4dda5c437f0 | 145 | } |
mbed_official | 133:d4dda5c437f0 | 146 | |
mbed_official | 133:d4dda5c437f0 | 147 | void pwmout_write(pwmout_t* obj, float value) { |
mbed_official | 133:d4dda5c437f0 | 148 | TIM_OC_InitTypeDef sConfig; |
mbed_official | 133:d4dda5c437f0 | 149 | int channel = 0; |
mbed_official | 133:d4dda5c437f0 | 150 | int complementary_channel = 0; |
mbed_official | 133:d4dda5c437f0 | 151 | |
mbed_official | 133:d4dda5c437f0 | 152 | TimHandle.Instance = (TIM_TypeDef *)(obj->pwm); |
mbed_official | 133:d4dda5c437f0 | 153 | |
mbed_official | 133:d4dda5c437f0 | 154 | if (value < (float)0.0) { |
mbed_official | 133:d4dda5c437f0 | 155 | value = 0.0; |
mbed_official | 133:d4dda5c437f0 | 156 | } else if (value > (float)1.0) { |
mbed_official | 133:d4dda5c437f0 | 157 | value = 1.0; |
mbed_official | 133:d4dda5c437f0 | 158 | } |
mbed_official | 133:d4dda5c437f0 | 159 | |
mbed_official | 133:d4dda5c437f0 | 160 | obj->pulse = (uint32_t)((float)obj->period * value); |
mbed_official | 133:d4dda5c437f0 | 161 | |
mbed_official | 133:d4dda5c437f0 | 162 | // Configure channels |
mbed_official | 133:d4dda5c437f0 | 163 | sConfig.OCMode = TIM_OCMODE_PWM1; |
mbed_official | 133:d4dda5c437f0 | 164 | sConfig.Pulse = obj->pulse; |
mbed_official | 133:d4dda5c437f0 | 165 | sConfig.OCPolarity = TIM_OCPOLARITY_HIGH; |
mbed_official | 133:d4dda5c437f0 | 166 | sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH; |
mbed_official | 133:d4dda5c437f0 | 167 | sConfig.OCFastMode = TIM_OCFAST_DISABLE; |
mbed_official | 133:d4dda5c437f0 | 168 | sConfig.OCIdleState = TIM_OCIDLESTATE_RESET; |
mbed_official | 133:d4dda5c437f0 | 169 | sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET; |
mbed_official | 133:d4dda5c437f0 | 170 | |
mbed_official | 133:d4dda5c437f0 | 171 | switch (obj->pin) { |
mbed_official | 133:d4dda5c437f0 | 172 | // Channels 1 |
mbed_official | 133:d4dda5c437f0 | 173 | case PA_0: |
mbed_official | 133:d4dda5c437f0 | 174 | case PA_5: |
mbed_official | 133:d4dda5c437f0 | 175 | case PA_6: |
mbed_official | 133:d4dda5c437f0 | 176 | case PA_8: |
mbed_official | 133:d4dda5c437f0 | 177 | case PA_15: |
mbed_official | 133:d4dda5c437f0 | 178 | case PB_4: |
mbed_official | 133:d4dda5c437f0 | 179 | case PB_6: |
mbed_official | 133:d4dda5c437f0 | 180 | case PC_6: |
mbed_official | 133:d4dda5c437f0 | 181 | channel = TIM_CHANNEL_1; |
mbed_official | 133:d4dda5c437f0 | 182 | break; |
mbed_official | 133:d4dda5c437f0 | 183 | // Channels 1N |
mbed_official | 133:d4dda5c437f0 | 184 | case PA_7: |
mbed_official | 133:d4dda5c437f0 | 185 | case PB_13: |
mbed_official | 133:d4dda5c437f0 | 186 | channel = TIM_CHANNEL_1; |
mbed_official | 133:d4dda5c437f0 | 187 | complementary_channel = 1; |
mbed_official | 133:d4dda5c437f0 | 188 | break; |
mbed_official | 133:d4dda5c437f0 | 189 | // Channels 2 |
mbed_official | 133:d4dda5c437f0 | 190 | case PA_1: |
mbed_official | 133:d4dda5c437f0 | 191 | case PA_9: |
mbed_official | 133:d4dda5c437f0 | 192 | case PB_3: |
mbed_official | 133:d4dda5c437f0 | 193 | case PB_5: |
mbed_official | 133:d4dda5c437f0 | 194 | case PB_7: |
mbed_official | 133:d4dda5c437f0 | 195 | case PC_7: |
mbed_official | 133:d4dda5c437f0 | 196 | channel = TIM_CHANNEL_2; |
mbed_official | 133:d4dda5c437f0 | 197 | break; |
mbed_official | 133:d4dda5c437f0 | 198 | // Channels 2N |
mbed_official | 133:d4dda5c437f0 | 199 | case PB_0: |
mbed_official | 133:d4dda5c437f0 | 200 | case PB_14: |
mbed_official | 133:d4dda5c437f0 | 201 | channel = TIM_CHANNEL_2; |
mbed_official | 133:d4dda5c437f0 | 202 | complementary_channel = 1; |
mbed_official | 133:d4dda5c437f0 | 203 | break; |
mbed_official | 133:d4dda5c437f0 | 204 | // Channels 3 |
mbed_official | 133:d4dda5c437f0 | 205 | case PA_2: |
mbed_official | 133:d4dda5c437f0 | 206 | case PA_10: |
mbed_official | 133:d4dda5c437f0 | 207 | case PB_8: |
mbed_official | 133:d4dda5c437f0 | 208 | case PB_10: |
mbed_official | 133:d4dda5c437f0 | 209 | case PC_8: |
mbed_official | 133:d4dda5c437f0 | 210 | channel = TIM_CHANNEL_3; |
mbed_official | 133:d4dda5c437f0 | 211 | break; |
mbed_official | 133:d4dda5c437f0 | 212 | // Channels 3N |
mbed_official | 133:d4dda5c437f0 | 213 | case PB_1: |
mbed_official | 133:d4dda5c437f0 | 214 | case PB_15: |
mbed_official | 133:d4dda5c437f0 | 215 | channel = TIM_CHANNEL_3; |
mbed_official | 133:d4dda5c437f0 | 216 | complementary_channel = 1; |
mbed_official | 133:d4dda5c437f0 | 217 | break; |
mbed_official | 133:d4dda5c437f0 | 218 | // Channels 4 |
mbed_official | 159:3b23f6d9ecb9 | 219 | case PA_3: |
mbed_official | 133:d4dda5c437f0 | 220 | case PA_11: |
mbed_official | 133:d4dda5c437f0 | 221 | case PB_9: |
mbed_official | 159:3b23f6d9ecb9 | 222 | case PC_9: |
mbed_official | 133:d4dda5c437f0 | 223 | channel = TIM_CHANNEL_4; |
mbed_official | 133:d4dda5c437f0 | 224 | break; |
mbed_official | 133:d4dda5c437f0 | 225 | default: |
mbed_official | 133:d4dda5c437f0 | 226 | return; |
mbed_official | 133:d4dda5c437f0 | 227 | } |
mbed_official | 133:d4dda5c437f0 | 228 | |
mbed_official | 133:d4dda5c437f0 | 229 | HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, channel); |
mbed_official | 133:d4dda5c437f0 | 230 | if (complementary_channel) { |
mbed_official | 133:d4dda5c437f0 | 231 | HAL_TIMEx_PWMN_Start(&TimHandle, channel); |
mbed_official | 242:7074e42da0b2 | 232 | } else { |
mbed_official | 133:d4dda5c437f0 | 233 | HAL_TIM_PWM_Start(&TimHandle, channel); |
mbed_official | 133:d4dda5c437f0 | 234 | } |
mbed_official | 133:d4dda5c437f0 | 235 | } |
mbed_official | 133:d4dda5c437f0 | 236 | |
mbed_official | 133:d4dda5c437f0 | 237 | float pwmout_read(pwmout_t* obj) { |
mbed_official | 133:d4dda5c437f0 | 238 | float value = 0; |
mbed_official | 133:d4dda5c437f0 | 239 | if (obj->period > 0) { |
mbed_official | 133:d4dda5c437f0 | 240 | value = (float)(obj->pulse) / (float)(obj->period); |
mbed_official | 133:d4dda5c437f0 | 241 | } |
mbed_official | 133:d4dda5c437f0 | 242 | return ((value > (float)1.0) ? (float)(1.0) : (value)); |
mbed_official | 133:d4dda5c437f0 | 243 | } |
mbed_official | 133:d4dda5c437f0 | 244 | |
mbed_official | 133:d4dda5c437f0 | 245 | void pwmout_period(pwmout_t* obj, float seconds) { |
mbed_official | 133:d4dda5c437f0 | 246 | pwmout_period_us(obj, seconds * 1000000.0f); |
mbed_official | 133:d4dda5c437f0 | 247 | } |
mbed_official | 133:d4dda5c437f0 | 248 | |
mbed_official | 133:d4dda5c437f0 | 249 | void pwmout_period_ms(pwmout_t* obj, int ms) { |
mbed_official | 133:d4dda5c437f0 | 250 | pwmout_period_us(obj, ms * 1000); |
mbed_official | 133:d4dda5c437f0 | 251 | } |
mbed_official | 133:d4dda5c437f0 | 252 | |
mbed_official | 133:d4dda5c437f0 | 253 | void pwmout_period_us(pwmout_t* obj, int us) { |
mbed_official | 133:d4dda5c437f0 | 254 | TimHandle.Instance = (TIM_TypeDef *)(obj->pwm); |
mbed_official | 133:d4dda5c437f0 | 255 | |
mbed_official | 133:d4dda5c437f0 | 256 | float dc = pwmout_read(obj); |
mbed_official | 133:d4dda5c437f0 | 257 | |
mbed_official | 133:d4dda5c437f0 | 258 | __HAL_TIM_DISABLE(&TimHandle); |
mbed_official | 133:d4dda5c437f0 | 259 | |
mbed_official | 242:7074e42da0b2 | 260 | // Update the SystemCoreClock variable |
mbed_official | 242:7074e42da0b2 | 261 | SystemCoreClockUpdate(); |
mbed_official | 133:d4dda5c437f0 | 262 | TimHandle.Init.Period = us - 1; |
mbed_official | 242:7074e42da0b2 | 263 | TimHandle.Init.Prescaler = (uint16_t)( ( SystemCoreClock >> ClockDivider ) / 1000000) - 1; // 1 µs tick |
mbed_official | 133:d4dda5c437f0 | 264 | TimHandle.Init.ClockDivision = 0; |
mbed_official | 133:d4dda5c437f0 | 265 | TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP; |
mbed_official | 133:d4dda5c437f0 | 266 | HAL_TIM_PWM_Init(&TimHandle); |
mbed_official | 133:d4dda5c437f0 | 267 | |
mbed_official | 133:d4dda5c437f0 | 268 | // Set duty cycle again |
mbed_official | 133:d4dda5c437f0 | 269 | pwmout_write(obj, dc); |
mbed_official | 133:d4dda5c437f0 | 270 | |
mbed_official | 133:d4dda5c437f0 | 271 | // Save for future use |
mbed_official | 133:d4dda5c437f0 | 272 | obj->period = us; |
mbed_official | 133:d4dda5c437f0 | 273 | |
mbed_official | 133:d4dda5c437f0 | 274 | __HAL_TIM_ENABLE(&TimHandle); |
mbed_official | 133:d4dda5c437f0 | 275 | } |
mbed_official | 133:d4dda5c437f0 | 276 | |
mbed_official | 133:d4dda5c437f0 | 277 | void pwmout_pulsewidth(pwmout_t* obj, float seconds) { |
mbed_official | 133:d4dda5c437f0 | 278 | pwmout_pulsewidth_us(obj, seconds * 1000000.0f); |
mbed_official | 133:d4dda5c437f0 | 279 | } |
mbed_official | 133:d4dda5c437f0 | 280 | |
mbed_official | 133:d4dda5c437f0 | 281 | void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) { |
mbed_official | 133:d4dda5c437f0 | 282 | pwmout_pulsewidth_us(obj, ms * 1000); |
mbed_official | 133:d4dda5c437f0 | 283 | } |
mbed_official | 133:d4dda5c437f0 | 284 | |
mbed_official | 133:d4dda5c437f0 | 285 | void pwmout_pulsewidth_us(pwmout_t* obj, int us) { |
mbed_official | 133:d4dda5c437f0 | 286 | float value = (float)us / (float)obj->period; |
mbed_official | 133:d4dda5c437f0 | 287 | pwmout_write(obj, value); |
mbed_official | 133:d4dda5c437f0 | 288 | } |
mbed_official | 242:7074e42da0b2 | 289 | |
mbed_official | 242:7074e42da0b2 | 290 | #endif |