first commit

APP/delay.c

@@ -0,0 +1,22 @@
+//
+// Created by IRIS on 25-2-10.
+//
+
+#include "delay.h"
+
+void Delay_Init() {
+    HAL_TIM_Base_Start(&htim5); //启动定时器
+}
+
+void Delay_us(uint32_t us) {
+
+    uint32_t Time_Now;
+    uint32_t Ts;
+
+    __HAL_TIM_SetCounter(&htim5, 0);
+    while(Ts < us) {
+        Time_Now = __HAL_TIM_GET_COUNTER(&htim5);
+        Ts = Time_Now * 0.1;
+    }
+
+}