Signed-off-by: kevin <kevin@lmve.net>

2022-04-02 18:13:21 +08:00
parent e95a273ea5
commit f6b46cb51c
18 changed files with 37 additions and 3 deletions
@@ -0,0 +1,16 @@
+/*
+ * buzzer.c
+ *
+ *  Created on: 2022年4月2日
+ *      Author: wuwen
+ */
+
+
+#include "buzzer.h"
+
+void play_ones(uint16_t freq,uint8_t dutya)
+{
+//寄存器写法  需要根据单片机的时钟来写。
+TIM14->ARR  = (uint32_t)((48000000/freq)-1);TIM14->CCR1 = (uint32_t)(((48000000/freq)-1)*((float)dutya/100));
+}
+