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pwm input working (at least for one channel)

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This commit is contained in:
Jasper Güldenstein 2020-11-12 21:47:45 +01:00
parent ee441c7d95
commit 6157f5b790
2 changed files with 31 additions and 12 deletions
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24
keil_project/Services/RFInput.c
View file

@ -22,11 +22,11 @@ void RF_INPUT_Init(void)
pb7_init_conf.Pull = LL_GPIO_PULL_DOWN;
LL_GPIO_Init(GPIOB, &pb7_init_conf);
// timer setup
// timer setup to
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM4);
LL_TIM_InitTypeDef tim4_init_struct;
tim4_init_struct.Autoreload= 1000; // ??
tim4_init_struct.Autoreload= 0xFFFF; // ??
tim4_init_struct.Prescaler=71;
tim4_init_struct.ClockDivision=LL_TIM_CLOCKDIVISION_DIV1;
tim4_init_struct.CounterMode=LL_TIM_COUNTERMODE_UP;
@ -34,22 +34,30 @@ void RF_INPUT_Init(void)
LL_TIM_Init(TIM4, &tim4_init_struct);
/*LL_TIM_IC_InitTypeDef tim4_ic_conf;
// setup channel 1 to capture period of pwm
LL_TIM_IC_InitTypeDef tim4_ic_conf;
tim4_ic_conf.ICPolarity= LL_TIM_IC_POLARITY_RISING;
tim4_ic_conf.ICActiveInput = LL_TIM_ACTIVEINPUT_TRC;
tim4_ic_conf.ICActiveInput = LL_TIM_ACTIVEINPUT_DIRECTTI;
tim4_ic_conf.ICFilter = LL_TIM_IC_FILTER_FDIV1;
tim4_ic_conf.ICPrescaler = LL_TIM_ICPSC_DIV1;
LL_TIM_IC_Init(TIM4, LL_TIM_CHANNEL_CH1, &tim4_ic_conf);
*/
// setup channel 2 to capture duty time of pwm
LL_TIM_IC_InitTypeDef tim4_ic_conf_2;
tim4_ic_conf_2.ICPolarity= LL_TIM_IC_POLARITY_RISING;
tim4_ic_conf_2.ICActiveInput = LL_TIM_ACTIVEINPUT_DIRECTTI;
tim4_ic_conf_2.ICPolarity= LL_TIM_IC_POLARITY_FALLING;
tim4_ic_conf_2.ICActiveInput = LL_TIM_ACTIVEINPUT_INDIRECTTI;
tim4_ic_conf_2.ICFilter = LL_TIM_IC_FILTER_FDIV1;
tim4_ic_conf_2.ICPrescaler = LL_TIM_ICPSC_DIV1;
LL_TIM_IC_Init(TIM4, LL_TIM_CHANNEL_CH1, &tim4_ic_conf_2);
LL_TIM_IC_Init(TIM4, LL_TIM_CHANNEL_CH2, &tim4_ic_conf_2);
// setup reset of clock at rising edge
LL_TIM_SetSlaveMode(TIM4, LL_TIM_SLAVEMODE_RESET);
LL_TIM_SetTriggerInput(TIM4, LL_TIM_TS_TI1FP1);
LL_TIM_EnableCounter(TIM4);
}
int RF_INPUT_GetValue1(void)

15
keil_project/Src/main.c
View file

@ -19,9 +19,11 @@
#include "stm32f1xx_ll_rcc.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_utils.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_system.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_bus.h"
#include "RFInput.h"
#include "IncrEncoder.h"
#include "DcMotor.h"
void SystemClock_Config(void);
@ -33,7 +35,9 @@ void SystemClock_Config(void);
* @retval None
*/
int val = 0;
int val2 = 0;
int counter = 0;
int main(void)
{
@ -41,11 +45,18 @@ int main(void)
SystemClock_Config();
RF_INPUT_Init();
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM4);
DC_MOTOR_Init();
/* Infinite loop */
while (1)
{
LL_mDelay(1000);
counter = (counter + 1) % 100;
DC_MOTOR_SetSpeed(counter);
val = RF_INPUT_GetValue1();
val2 = RF_INPUT_GetValue2();
}
}