update

software/Power_Pico/BSP/BEEP/beep.c

@@ -0,0 +1,10 @@
+#include "beep.h"
+#include "tim.h"
+
+void beep_open(void) {
+    HAL_TIM_PWM_Start(&htim4, TIM_CHANNEL_4); // 启动PWM通道4用于蜂鸣器
+}
+
+void beep_close(void) {
+    HAL_TIM_PWM_Stop(&htim4, TIM_CHANNEL_4); // 停止PWM通道4
+}