71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*
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* PWM_control.h
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*
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* Created on: 07.07.2024
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* Author: Hamza
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*/
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#include "PWM_control.h"
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//uint32_t powerground1_CCR, powerground2_CCR, battery_cooling_CCR;
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TIM_HandleTypeDef *powerground, *battery_cooling, *esc_cooling;
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/*
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Pulse width modulation mode allows for generating a signal with a frequency determined by
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the value of the TIMx_ARR register and a duty cycle determined by the value of the TIMx_CCRx register.
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*/
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void PWM_control_init(TIM_HandleTypeDef* pg, TIM_HandleTypeDef* bat_cool, TIM_HandleTypeDef* esc_cool){
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current_powerground_status = 0;
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target_powerground_status = 0;
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//battery_cooling_status = 0;
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powerground = pg;
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battery_cooling = bat_cool;
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esc_cooling = esc_cool;
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// htim2 CH3,4 BAT_COOLING_PWM,ENABLE
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// htim3 CH3,4 ESC_L_PWM,R_PWM
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// htim4 CH1,2,3 LED R,G,B
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// htim15 CH1,2 ESC_COOLING_ENABLE,PWM
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HAL_TIM_PWM_Start(powerground, TIM_CHANNEL_3); //TIM3CH3
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HAL_TIM_PWM_Start(powerground, TIM_CHANNEL_4); //TIM3CH4
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//HAL_TIM_PWM_Start(bat_cool, TIM_CHANNEL_3); //TIM1CH3
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_1, 0);
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_2, 0);
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//PWM_powerground_control(0);
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//__HAL_TIM_SET_COMPARE(battery_cooling, TIM_CHANNEL_3, 2000);
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}
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/*
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controls the duty cycle of the fans by setting the CCR of the channel
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6+percent/100 = x/ARR
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DUTYCYCLE = 40000 * X/100
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*/
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void PWM_powerground_control(uint8_t percent){
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if (percent > 100){ //something went wrong
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_3, 0);
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_4, 0);
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current_powerground_status = target_powerground_status = 0;
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return;
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}
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current_powerground_status = target_powerground_status = percent;
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int ccr = 2000 + (20 * percent);
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_3, ccr);
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_4, ccr);
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}
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void PWM_powerground_softcontrol(){
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int ccr = 2000 + (20 * current_powerground_status);
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_3, ccr);
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__HAL_TIM_SET_COMPARE(powerground, TIM_CHANNEL_4, ccr);
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}
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void PWM_battery_cooling_control(uint8_t percent){}
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void PWM_esc_cooling(uint8_t percent){}
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