added PWM_powerground_control()
moved pg2 to TIM15CH2
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7133516721
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f6ba786e1b
@ -5,6 +5,24 @@
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#include "ADBMS_LL_Driver.h"
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#include "main.h"
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/* The PWM period (1/FPWM) is defined by the following parameters:
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ARR value, the Prescaler value, and the internal clock itself which drives the timer module FCLK.
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F_PWM = (F_CLK)/((ARR + 1) * (PSC + 1))
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F_CLK = 16 MHz
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POWERGROUND ESC Signal: pulse every 20 ms, 1 ms = 0%, 2 ms = 100%
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FREQ = 50 Hz -> 16 MHz/50 Hz = 320000 = ((9999 + 1) * (31 + 1))
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DUTY CYCLE = 1/20 -> 0%, DUTY CYCLE = 2/20 -> 100%
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CCR * DUTY_CYCLE
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CCR: 1/20 -> 500, 2/20 -> 1000
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*/
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#define POWERGROUND_FREQ 50
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#define POWERGROUND_MAX_DUTY_CYCLE 0.05
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#define POWERGROUND_MIN_DUTY_CYCLE 0.1
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//#define BATTERY_COOLING_FREQ 20000
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void PWM_control_init(TIM_HandleTypeDef powerground1, TIM_HandleTypeDef powerground2, TIM_HandleTypeDef battery_cooling);
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void PWM_powerground_control(uint8_t percent);
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@ -1,28 +1,41 @@
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#include "PWM_control.h"
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#include "stm32f3xx_hal_tim.h"
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#include <stdint.h>
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uint8_t powerground_status;
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uint8_t battery_cooling_status;
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uint8_t powerground_percent;
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uint8_t battery_cooling_percent;
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//uint32_t powerground1_CCR, powerground2_CCR, battery_cooling_CCR;
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TIM_HandleTypeDef powerground1, powerground2, battery_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 powerground1, TIM_HandleTypeDef powerground2, TIM_HandleTypeDef battery_cooling){
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powerground_status = 0;
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battery_cooling = 0;
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battery_cooling_status = 0;
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HAL_TIM_PWM_Start(&powerground1, 1);
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HAL_TIM_PWM_Start(&powerground2, 4);
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HAL_TIM_PWM_Start(&battery_cooling, 3);
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HAL_TIM_PWM_Start(&powerground1, 1); //TIM15CH1
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HAL_TIM_PWM_Start(&powerground2, 2); //TIM15CH2
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HAL_TIM_PWM_Start(&battery_cooling, 3); //TIM1CH3
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//__HAL_TIM_SET_COMPARE(&powerground1, 1, 0);
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//__HAL_TIM_SET_COMPARE(&powerground2, 4, 0);
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//__HAL_TIM_SET_COMPARE(&battery_cooling, 3, 0);
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powerground_percent = 0;
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battery_cooling_percent = 0;
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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 percent/100 = x/ARR
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*/
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void PWM_powerground_control(uint8_t percent){
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//uint8_t duty_cycle = (percent/100) * 65536;
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//__HAL_TIM_SET_COMPARE(&powerground1, 1, 0);
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if (percent > 100 || percent < 0)
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return;
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powerground_percent = percent/100;
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TIM15->CCR1 = (POWERGROUND_MAX_DUTY_CYCLE-POWERGROUND_MIN_DUTY_CYCLE) * (percent/100) + POWERGROUND_MIN_DUTY_CYCLE;
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TIM15->CCR2 = TIM15->CCR1; /* *1.01 or *0.99 if the speeds of the fans are different*/
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}
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void PWM_battery_cooling_control(uint8_t percent){
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20
mvbms.ioc
20
mvbms.ioc
@ -23,10 +23,9 @@ Mcu.IP3=RCC
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Mcu.IP4=SPI1
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Mcu.IP5=SYS
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Mcu.IP6=TIM1
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Mcu.IP7=TIM2
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Mcu.IP8=TIM15
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Mcu.IP9=USART1
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Mcu.IPNb=10
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Mcu.IP7=TIM15
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Mcu.IP8=USART1
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Mcu.IPNb=9
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Mcu.Name=STM32F302C(B-C)Tx
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Mcu.Package=LQFP48
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Mcu.Pin0=PF0-OSC_IN
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@ -110,7 +109,7 @@ PA2.Signal=S_TIM15_CH1
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PA3.GPIOParameters=GPIO_Label
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PA3.GPIO_Label=PWM_PG_FAN2
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PA3.Locked=true
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PA3.Signal=S_TIM2_CH4
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PA3.Signal=S_TIM15_CH2
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PA4.GPIOParameters=GPIO_Label
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PA4.GPIO_Label=CSB
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PA4.Locked=true
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@ -190,7 +189,7 @@ ProjectManager.FreePins=true
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ProjectManager.HalAssertFull=false
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ProjectManager.HeapSize=0x200
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ProjectManager.KeepUserCode=true
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ProjectManager.LastFirmware=true
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ProjectManager.LastFirmware=false
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ProjectManager.LibraryCopy=1
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ProjectManager.MainLocation=Core/Src
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ProjectManager.NoMain=false
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@ -243,8 +242,8 @@ RCC.USBFreq_Value=16000000
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RCC.VCOOutput2Freq_Value=4000000
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SH.S_TIM15_CH1.0=TIM15_CH1,PWM Generation1 CH1
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SH.S_TIM15_CH1.ConfNb=1
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SH.S_TIM2_CH4.0=TIM2_CH4,PWM Generation4 CH4
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SH.S_TIM2_CH4.ConfNb=1
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SH.S_TIM15_CH2.0=TIM15_CH2,PWM Generation2 CH2
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SH.S_TIM15_CH2.ConfNb=1
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SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_32
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SPI1.CalculateBaudRate=500.0 KBits/s
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SPI1.DataSize=SPI_DATASIZE_8BIT
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@ -255,9 +254,8 @@ SPI1.VirtualType=VM_MASTER
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TIM1.Channel-PWM\ Generation3\ CH3N=TIM_CHANNEL_3
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TIM1.IPParameters=Channel-PWM Generation3 CH3N
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TIM15.Channel-PWM\ Generation1\ CH1=TIM_CHANNEL_1
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TIM15.IPParameters=Channel-PWM Generation1 CH1
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TIM2.Channel-PWM\ Generation4\ CH4=TIM_CHANNEL_4
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TIM2.IPParameters=Channel-PWM Generation4 CH4
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TIM15.Channel-PWM\ Generation2\ CH2=TIM_CHANNEL_2
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TIM15.IPParameters=Channel-PWM Generation1 CH1,Channel-PWM Generation2 CH2
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USART1.IPParameters=VirtualMode-Asynchronous
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USART1.VirtualMode-Asynchronous=VM_ASYNC
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VP_SYS_VS_Systick.Mode=SysTick
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