Motor Pilot

[kkhli.1]

I have an issue when using both PWMs generated by timers TIM2 and TIM3 to control two motors simultaneously. Specifically, when I call the function DC_MOTOR_Init(0), it activates PWM1, and when I call DC_MOTOR_Init(1), it activates PWM2. However, if I call both DC_MOTOR_Init(0) and DC_MOTOR_Init(1) simultaneously, they don't seem to work together. When I call either function alone, it works correctly, but when I attempt to call them simultaneously, there is an issue. Despite the fact that the two timers do not share common resources..

#include "main.h"
#include "DC_MOTOR.h"

void SystemClock_Config(void);
static void MX_GPIO_Init(void);

int main(void)
{

HAL_Init();

SystemClock_Config();
MX_GPIO_Init();

DC_MOTOR_Init(1);

DC_MOTOR_Init(0);

/
while (1)
{

}

[Sarra.S]

Hello @kkhli.1, 

I cannot see what could have caused the conflict 

DC MOTOR 1 uses TIM2_CH1 to generate the PWM signal

DC MOTOR 2 uses TIM3_CH1 to generate the PWM signal

the code you provided does not cover the GPIO configuration though, but I suppose you're using different GPIOs to control the motors? 

Meanwhile, I will look more in-depth 

[kkhli.1]

the GPIO configuration  is covered by the file 

DC_MOTOR_cfg.c

DC_MOTOR.c

[Hl_st]

Hello,

please try to null htim variable in function DC_Motor_Init() before htim variable will be used:

TIM_HandleTypeDef htim = {0};

It should works correctly.

[kkhli.1 · Accepted solution]

thank you it works correctly now