完成：实验三第三题

2025-03-25 13:22:49 +08:00
parent a60eec5800
commit 48fae403e5
2 changed files with 35 additions and 1 deletions
@@ -0,0 +1,33 @@
+// test3.c
+// 左右流水灯
+
+#include "homework3.h"
+
+unsigned char cnt = 0;
+
+void test3()
+{
+    ENLED = 0;
+    ADDR3 = 1;
+    ADDR2 = 1;
+    ADDR1 = 1;
+    ADDR0 = 0;
+
+    while (true) {
+        if(cnt < 8) {
+            P2 = ~(0x01 << cnt);    // 左向流水
+        } else {
+            P2 = ~(0x80 >> (cnt-8)); // 右向流水
+        }
+        Delay(20000);
+        cnt++;
+        if (cnt >= 16) {  // 0-7左移，8-15右移
+            cnt = 0;
+        }
+    }
+}
+
+void main()
+{
+    test3();
+}