mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
Diff: targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pwmout_api.c
- Revision:
- 129:0182c99221bc
- Parent:
- 84:f54042cbc282
- Child:
- 174:8bb9f3a33240
diff -r 4cda7c483b31 -r 0182c99221bc targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pwmout_api.c --- a/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pwmout_api.c Wed Mar 19 18:20:52 2014 +0000 +++ b/targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pwmout_api.c Thu Mar 20 11:45:07 2014 +0000 @@ -33,11 +33,43 @@ #include "pinmap.h" #include "error.h" +// TIM5 cannot be used because already used by the us_ticker static const PinMap PinMap_PWM[] = { - {PB_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH2 - {PB_4, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1 - {PB_6, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH1 - {NC, NC, 0} + //{PA_0, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1 + {PA_1, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH2 + //{PA_1, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH1 + {PA_2, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH3 + //{PA_2, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH3 + //{PA_2, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH1 + {PA_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH4 + //{PA_3, PWM_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM5)}, // TIM5_CH4 + //{PA_3, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH2 + {PA_6, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1 + //{PA_6, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1 + {PA_7, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2 + //{PA_7, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1 + {PB_0, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH3 + {PB_1, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH4 + {PB_3, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH2 + {PB_4, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1 + {PB_5, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2 + {PB_6, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH1 + {PB_7, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH2 + {PB_8, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH3 + //{PB_8, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1 + {PB_9, PWM_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM4)}, // TIM4_CH4 + //{PB_9, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1 + {PB_10, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH3 + {PB_11, PWM_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM2)}, // TIM2_CH4 + {PB_12, PWM_10, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM10)}, // TIM10_CH1 + {PB_13, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH1 + {PB_14, PWM_9, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM9)}, // TIM9_CH2 + {PB_15, PWM_11, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM11)}, // TIM11_CH1 + {PC_6, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH1 + {PC_7, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH2 + {PC_8, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH3 + {PC_9, PWM_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_TIM3)}, // TIM3_CH4 + {NC, NC, 0} }; void pwmout_init(pwmout_t* obj, PinName pin) { @@ -52,6 +84,10 @@ if (obj->pwm == PWM_2) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); if (obj->pwm == PWM_3) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); if (obj->pwm == PWM_4) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); + if (obj->pwm == PWM_5) RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); + if (obj->pwm == PWM_9) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM9, ENABLE); + if (obj->pwm == PWM_10) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM10, ENABLE); + if (obj->pwm == PWM_11) RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM11, ENABLE); // Configure GPIO pinmap_pinout(pin, PinMap_PWM); @@ -71,7 +107,7 @@ void pwmout_write(pwmout_t* obj, float value) { TIM_TypeDef *tim = (TIM_TypeDef *)(obj->pwm); TIM_OCInitTypeDef TIM_OCInitStructure; - + if (value < 0.0) { value = 0.0; } else if (value > 1.0) { @@ -80,21 +116,62 @@ obj->pulse = (uint32_t)((float)obj->period * value); - TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; - TIM_OCInitStructure.TIM_Pulse = obj->pulse; - TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; + TIM_OCInitStructure.TIM_Pulse = obj->pulse; + TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; - // Configure channel 1 - if ((obj->pin == PB_4) || (obj->pin == PB_6)) { - TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable); - TIM_OC1Init(tim, &TIM_OCInitStructure); - } - - // Configure channel 2 - if (obj->pin == PB_3) { - TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable); - TIM_OC2Init(tim, &TIM_OCInitStructure); + // Configure the channels + switch (obj->pin) { + // Channels 1 + //case PA_0: + //case PA_1: + //case PA_2: + case PA_6: + //case PA_7: + case PB_4: + case PB_6: + //case PB_8: + //case PB_9: + case PB_12: + case PB_13: + case PB_15: + case PC_6: + TIM_OC1PreloadConfig(tim, TIM_OCPreload_Enable); + TIM_OC1Init(tim, &TIM_OCInitStructure); + break; + // Channels 2 + case PA_1: + //case PA_3: + case PA_7: + case PB_3: + case PB_5: + case PB_7: + case PB_14: + case PC_7: + TIM_OC2PreloadConfig(tim, TIM_OCPreload_Enable); + TIM_OC2Init(tim, &TIM_OCInitStructure); + break; + // Channels 3 + case PA_2: + case PB_0: + case PB_8: + case PB_10: + case PC_8: + TIM_OC3PreloadConfig(tim, TIM_OCPreload_Enable); + TIM_OC3Init(tim, &TIM_OCInitStructure); + break; + // Channels 4 + case PA_3: + case PB_1: + case PB_9: + case PB_11: + case PC_9: + TIM_OC4PreloadConfig(tim, TIM_OCPreload_Enable); + TIM_OC4Init(tim, &TIM_OCInitStructure); + break; + default: + return; } } @@ -123,10 +200,10 @@ obj->period = us; - TIM_TimeBaseStructure.TIM_Period = obj->period - 1; - TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick + TIM_TimeBaseStructure.TIM_Period = obj->period - 1; + TIM_TimeBaseStructure.TIM_Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick TIM_TimeBaseStructure.TIM_ClockDivision = 0; - TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseInit(tim, &TIM_TimeBaseStructure); // Set duty cycle again