added PWM_control

Core/Src/PWM_control.c

@@ -0,0 +1,30 @@
+#include "PWM_control.h"
+#include "stm32f3xx_hal_tim.h"
+#include <stdint.h>
+
+uint8_t powerground_status;
+uint8_t battery_cooling_status;
+
+TIM_HandleTypeDef powerground1, powerground2, battery_cooling;
+
+void PWM_control_init(TIM_HandleTypeDef powerground1, TIM_HandleTypeDef powerground2, TIM_HandleTypeDef battery_cooling){
+  powerground_status = 0;
+  battery_cooling = 0;
+
+  HAL_TIM_PWM_Start(&powerground1, 1);
+  HAL_TIM_PWM_Start(&powerground2, 4);
+  HAL_TIM_PWM_Start(&battery_cooling, 3);
+
+  //__HAL_TIM_SET_COMPARE(&powerground1, 1, 0);
+  //__HAL_TIM_SET_COMPARE(&powerground2, 4, 0);
+  //__HAL_TIM_SET_COMPARE(&battery_cooling, 3, 0);
+}              
+
+void PWM_powerground_control(uint8_t percent){
+  //uint8_t duty_cycle = (percent/100) * 65536;
+  //__HAL_TIM_SET_COMPARE(&powerground1, 1, 0);
+}
+
+void PWM_battery_cooling_control(uint8_t percent){
+
+}