FaSTTUBe/mv-bms
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added PWM_powerground_control()

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moved pg2 to TIM15CH2
This commit is contained in:
Hamza 2024-05-25 18:41:12 +02:00
parent 7133516721
commit f6ba786e1b
3 changed files with 50 additions and 21 deletions
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18
Core/Inc/PWM_control.h
View File

@ -5,6 +5,24 @@
#include "ADBMS_LL_Driver.h"
#include "main.h"
/* The PWM period (1/FPWM) is defined by the following parameters:
ARR value, the Prescaler value, and the internal clock itself which drives the timer module FCLK.
F_PWM = (F_CLK)/((ARR + 1) * (PSC + 1))
F_CLK = 16 MHz
POWERGROUND ESC Signal: pulse every 20 ms, 1 ms = 0%, 2 ms = 100%
FREQ = 50 Hz -> 16 MHz/50 Hz = 320000 = ((9999 + 1) * (31 + 1))
DUTY CYCLE = 1/20 -> 0%, DUTY CYCLE = 2/20 -> 100%
CCR * DUTY_CYCLE
CCR: 1/20 -> 500, 2/20 -> 1000
*/
#define POWERGROUND_FREQ 50
#define POWERGROUND_MAX_DUTY_CYCLE 0.05
#define POWERGROUND_MIN_DUTY_CYCLE 0.1
//#define BATTERY_COOLING_FREQ 20000
void PWM_control_init(TIM_HandleTypeDef powerground1, TIM_HandleTypeDef powerground2, TIM_HandleTypeDef battery_cooling);
void PWM_powerground_control(uint8_t percent);

33
Core/Src/PWM_control.c
View File

@ -1,28 +1,41 @@
#include "PWM_control.h"
#include "stm32f3xx_hal_tim.h"
#include <stdint.h>
uint8_t powerground_status;
uint8_t battery_cooling_status;
uint8_t powerground_percent;
uint8_t battery_cooling_percent;
//uint32_t powerground1_CCR, powerground2_CCR, battery_cooling_CCR;
TIM_HandleTypeDef powerground1, powerground2, battery_cooling;
/*
Pulse width modulation mode allows for generating a signal with a frequency determined by
the value of the TIMx_ARR register and a duty cycle determined by the value of the TIMx_CCRx register.
*/
void PWM_control_init(TIM_HandleTypeDef powerground1, TIM_HandleTypeDef powerground2, TIM_HandleTypeDef battery_cooling){
powerground_status = 0;
battery_cooling = 0;
battery_cooling_status = 0;
HAL_TIM_PWM_Start(&powerground1, 1);
HAL_TIM_PWM_Start(&powerground2, 4);
HAL_TIM_PWM_Start(&battery_cooling, 3);
HAL_TIM_PWM_Start(&powerground1, 1); //TIM15CH1
HAL_TIM_PWM_Start(&powerground2, 2); //TIM15CH2
HAL_TIM_PWM_Start(&battery_cooling, 3); //TIM1CH3
//__HAL_TIM_SET_COMPARE(&powerground1, 1, 0);
//__HAL_TIM_SET_COMPARE(&powerground2, 4, 0);
//__HAL_TIM_SET_COMPARE(&battery_cooling, 3, 0);
powerground_percent = 0;
battery_cooling_percent = 0;
}
/*
controls the duty cycle of the fans by setting the CCR of the channel percent/100 = x/ARR
*/
void PWM_powerground_control(uint8_t percent){
//uint8_t duty_cycle = (percent/100) * 65536;
//__HAL_TIM_SET_COMPARE(&powerground1, 1, 0);
if (percent > 100 || percent < 0)
return;
powerground_percent = percent/100;
TIM15->CCR1 = (POWERGROUND_MAX_DUTY_CYCLE-POWERGROUND_MIN_DUTY_CYCLE) * (percent/100) + POWERGROUND_MIN_DUTY_CYCLE;
TIM15->CCR2 = TIM15->CCR1; /* *1.01 or *0.99 if the speeds of the fans are different*/
}
void PWM_battery_cooling_control(uint8_t percent){

20
mvbms.ioc
View File

@ -23,10 +23,9 @@ Mcu.IP3=RCC
Mcu.IP4=SPI1
Mcu.IP5=SYS
Mcu.IP6=TIM1
Mcu.IP7=TIM2
Mcu.IP8=TIM15
Mcu.IP9=USART1
Mcu.IPNb=10
Mcu.IP7=TIM15
Mcu.IP8=USART1
Mcu.IPNb=9
Mcu.Name=STM32F302C(B-C)Tx
Mcu.Package=LQFP48
Mcu.Pin0=PF0-OSC_IN
@ -110,7 +109,7 @@ PA2.Signal=S_TIM15_CH1
PA3.GPIOParameters=GPIO_Label
PA3.GPIO_Label=PWM_PG_FAN2
PA3.Locked=true
PA3.Signal=S_TIM2_CH4
PA3.Signal=S_TIM15_CH2
PA4.GPIOParameters=GPIO_Label
PA4.GPIO_Label=CSB
PA4.Locked=true
@ -190,7 +189,7 @@ ProjectManager.FreePins=true
ProjectManager.HalAssertFull=false
ProjectManager.HeapSize=0x200
ProjectManager.KeepUserCode=true
ProjectManager.LastFirmware=true
ProjectManager.LastFirmware=false
ProjectManager.LibraryCopy=1
ProjectManager.MainLocation=Core/Src
ProjectManager.NoMain=false
@ -243,8 +242,8 @@ RCC.USBFreq_Value=16000000
RCC.VCOOutput2Freq_Value=4000000
SH.S_TIM15_CH1.0=TIM15_CH1,PWM Generation1 CH1
SH.S_TIM15_CH1.ConfNb=1
SH.S_TIM2_CH4.0=TIM2_CH4,PWM Generation4 CH4
SH.S_TIM2_CH4.ConfNb=1
SH.S_TIM15_CH2.0=TIM15_CH2,PWM Generation2 CH2
SH.S_TIM15_CH2.ConfNb=1
SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_32
SPI1.CalculateBaudRate=500.0 KBits/s
SPI1.DataSize=SPI_DATASIZE_8BIT
@ -255,9 +254,8 @@ SPI1.VirtualType=VM_MASTER
TIM1.Channel-PWM\ Generation3\ CH3N=TIM_CHANNEL_3
TIM1.IPParameters=Channel-PWM Generation3 CH3N
TIM15.Channel-PWM\ Generation1\ CH1=TIM_CHANNEL_1
TIM15.IPParameters=Channel-PWM Generation1 CH1
TIM2.Channel-PWM\ Generation4\ CH4=TIM_CHANNEL_4
TIM2.IPParameters=Channel-PWM Generation4 CH4
TIM15.Channel-PWM\ Generation2\ CH2=TIM_CHANNEL_2
TIM15.IPParameters=Channel-PWM Generation1 CH1,Channel-PWM Generation2 CH2
USART1.IPParameters=VirtualMode-Asynchronous
USART1.VirtualMode-Asynchronous=VM_ASYNC
VP_SYS_VS_Systick.Mode=SysTick