139 lines
3.8 KiB
C
139 lines
3.8 KiB
C
#include "pdctrl.h"
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#include "main.h"
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// 模式转换
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#define DAC_MODE() GPIO_RESET(PDCTRL_GPIO_Port, PDCTRL_Pin)
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#define PWM_MODE() GPIO_SET(PDCTRL_GPIO_Port, PDCTRL_Pin)
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__IO static pdctrl_mode_e out_mode = PDCTRL_DAC;
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__IO uint16_t last_out;
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static uint16_t arr_default = 0;
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static void dac_dinit(void)
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{
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DAC_STOP(DAC, LL_DAC_CHANNEL_2); // DAC通道禁用
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}
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static void dac_init(void)
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{
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last_out = 0xffff;
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DAC_MODE();
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LL_DAC_InitTypeDef DAC_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_DAC1);
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LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
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GPIO_InitStruct.Pin = LL_GPIO_PIN_5;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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NVIC_SetPriority(TIM6_DAC_IRQn, 0);
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NVIC_EnableIRQ(TIM6_DAC_IRQn);
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DAC_InitStruct.TriggerSource = LL_DAC_TRIG_SOFTWARE;
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DAC_InitStruct.WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
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DAC_InitStruct.OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
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LL_DAC_Init(DAC, LL_DAC_CHANNEL_2, &DAC_InitStruct);
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DAC_START(DAC, LL_DAC_CHANNEL_2); // DAC通道使能
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}
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static void pwm_dinit(void)
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{
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PWM_STOP(TIM2, LL_TIM_CHANNEL_CH1); // PWM通道禁用
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}
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static void pwm_init(uint8_t pwm_frequency)
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{
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last_out = 0xffff;
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PWM_MODE();
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arr_default = PDCTRL_SYS_FREQUENCY / (pwm_frequency - 1);
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LL_TIM_InitTypeDef TIM_InitStruct = {0};
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LL_TIM_OC_InitTypeDef TIM_OC_InitStruct = {0};
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LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
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LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM2);
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NVIC_SetPriority(TIM2_IRQn, 0);
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NVIC_EnableIRQ(TIM2_IRQn);
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TIM_InitStruct.Prescaler = 0;
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TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
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TIM_InitStruct.Autoreload = arr_default - 1;
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TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
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LL_TIM_Init(TIM2, &TIM_InitStruct);
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LL_TIM_EnableARRPreload(TIM2);
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LL_TIM_OC_EnablePreload(TIM2, LL_TIM_CHANNEL_CH1);
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TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_PWM1;
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TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_DISABLE;
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TIM_OC_InitStruct.CompareValue = 0;
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TIM_OC_InitStruct.OCPolarity = LL_TIM_OCPOLARITY_HIGH;
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LL_TIM_OC_Init(TIM2, LL_TIM_CHANNEL_CH1, &TIM_OC_InitStruct);
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LL_TIM_OC_DisableFast(TIM2, LL_TIM_CHANNEL_CH1);
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LL_TIM_SetTriggerOutput(TIM2, LL_TIM_TRGO_RESET);
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LL_TIM_DisableMasterSlaveMode(TIM2);
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LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
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GPIO_InitStruct.Pin = LL_GPIO_PIN_5;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
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GPIO_InitStruct.Alternate = LL_GPIO_AF_5;
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LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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PWM_START(TIM2, LL_TIM_CHANNEL_CH1); // PWM通道使能
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}
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/**
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* @brief 控制初始化
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* @param {pdctrl_mode_e} mode
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* @param {uint8_t} pwm_frequency
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* @return {*}
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* @note
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*/
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void pdctrl_init(pdctrl_mode_e mode, uint8_t pwm_frequency)
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{
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out_mode = mode;
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if (out_mode == PDCTRL_DAC)
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{
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pwm_dinit();
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dac_init();
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}
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else if (out_mode == PDCTRL_PWM)
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{
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dac_dinit();
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pwm_init(pwm_frequency);
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}
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}
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/**
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* @brief 控制输出
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* @param {uint16_t} out
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* @return {*}
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* @note
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*/
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void pdctrl_out(uint16_t out)
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{
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if (last_out == out)
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{
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return;
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}
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last_out = out;
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if (out_mode == PDCTRL_DAC)
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{
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DAC_OUT(DAC, LL_DAC_CHANNEL_2, out);
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}
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else if (out_mode == PDCTRL_PWM)
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{
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PWM_SET_DUTY(TIM2, 1, out);
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}
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}
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/**
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* @brief 占空比转换为CCR值
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* @param {float32} out
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* @return {*}
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* @note
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*/
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uint16_t pdctrl_pwm_duty_convert_ccr(float32 pwm_duty)
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{
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return (pwm_duty * arr_default) / 100;
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}
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