Implement fan PWM

Core/Inc/FanControl.h

@@ -0,0 +1,15 @@
+#ifndef INC_FAN_CONTROL_H
+#define INC_FAN_CONTROL_H
+
+#include "stm32f4xx_hal.h"
+#include "stm32f4xx_hal_def.h"
+#include "stm32f4xx_hal_tim.h"
+
+HAL_StatusTypeDef fan_ctrl_init(TIM_HandleTypeDef* handle, uint32_t channel);
+
+/**
+ * @brief Set the power of the fan (0 -> off, 100 -> full power).
+ */
+void fan_ctrl_set_power(uint32_t percent);
+
+#endif // INC_FAN_CONTROL_H

Core/Inc/main.h

@@ -48,6 +48,8 @@ extern "C" {
 #define MAIN_LOOP_PERIOD 100 /* ms */
 /* USER CODE END EM */
 
+void HAL_TIM_MspPostInit(TIM_HandleTypeDef* htim);
+
 /* Exported functions prototypes ---------------------------------------------*/
 void Error_Handler(void);
 

Core/Inc/stm32f4xx_hal_conf.h

@@ -63,7 +63,7 @@
 /* #define HAL_SD_MODULE_ENABLED   */
 /* #define HAL_MMC_MODULE_ENABLED   */
 /* #define HAL_SPI_MODULE_ENABLED   */
-/* #define HAL_TIM_MODULE_ENABLED   */
+#define HAL_TIM_MODULE_ENABLED
 #define HAL_UART_MODULE_ENABLED
 /* #define HAL_USART_MODULE_ENABLED   */
 /* #define HAL_IRDA_MODULE_ENABLED   */