diff --git a/app/by_buzzer.c b/app/by_buzzer.c
index b4df4d0..f437f08 100644
--- a/app/by_buzzer.c
+++ b/app/by_buzzer.c
@@ -10,6 +10,7 @@ uint32_t a[40]      = {0};
 
 void queue_init(void)
 {
+    queue_long = 0;
     memset(a, 0, sizeof(a));
 }
 
@@ -22,7 +23,7 @@ void queue_add_element(int element)
 }
 void queue_pop_element(void)
 {
-    memmove(a, &a[1], queue_long * sizeof(a));
+    memmove(a, &a[1], (queue_long - 1) * sizeof(a[0]));
     if (queue_long > 0) {
         queue_long--;
     }
diff --git a/app/main.c b/app/main.c
index 85fa16a..242b38c 100644
--- a/app/main.c
+++ b/app/main.c
@@ -56,7 +56,7 @@ int main(void)
     ips200_init(IPS200_TYPE_SPI);
 
     by_led_init();
-    // by_buzzer_init();
+    by_buzzer_init();
     by_button_init();
 
     jj_bt_init();
@@ -71,7 +71,7 @@ int main(void)
     // by_tiny_frame_read(0x0D, 0x4059, &data_test);
     while (1) {
         Page_Run();
-        // by_buzzer_run();
+        by_buzzer_run();
         tiny_frame_param[0].f32 = pure_angle;
         tiny_frame_param[1].f32 = near_angle;
         by_tiny_frame_write(0x0D, 0x0000, tiny_frame_param[0].u32);
diff --git a/libraries/zf_device/zf_device_ips200.c b/libraries/zf_device/zf_device_ips200.c
index d71a1c0..99b7c99 100644
--- a/libraries/zf_device/zf_device_ips200.c
+++ b/libraries/zf_device/zf_device_ips200.c
@@ -326,8 +326,8 @@ static void ips200_set_region(uint16 x1, uint16 y1, uint16 x2, uint16 y2)
     ips200_write_16bit_data(x2+80);
 
     ips200_write_command(0x2b);
-    ips200_write_16bit_data(y1+20);
-    ips200_write_16bit_data(y2+20);
+    ips200_write_16bit_data(y1);
+    ips200_write_16bit_data(y2);
 
     ips200_write_command(0x2c);
 }