diff --git a/src/command/handlers/cmd_piezo.c b/src/command/handlers/cmd_piezo.c
index a90ce48..3e7d3d7 100644
--- a/src/command/handlers/cmd_piezo.c
+++ b/src/command/handlers/cmd_piezo.c
@@ -221,12 +221,22 @@ int cmd_mim(const uint8_t *data, uint8_t data_len)
     ARG_UNUSED(data);
     ARG_UNUSED(data_len);
 
+    if (processing)
+    {
+        return 1;
+    }
+
+    processing = true;
+    power_button_suspend(true);
+
     uint16_t rim_count = 0U;
     int imu_ret = imu_fifo_start();
     if (imu_ret != 0)
     {
         DBG_PRINTF("[MTB] fifo start fail ret=%d\r\n", imu_ret);
         cmd_send_response_rim(tx_rim_samples, 0U);
+        power_button_suspend(false);
+        processing = false;
         return 1;
     }
      
@@ -241,6 +251,8 @@ int cmd_mim(const uint8_t *data, uint8_t data_len)
 
     cmd_send_response_rim(tx_rim_samples, rim_count); // IMU FIFO 15 samples rim: 전송
     imu_fifo_stop();
+    power_button_suspend(false);
+    processing = false;
     return 1;
 }
 
@@ -492,4 +504,4 @@ int cmd_mad(const uint8_t *data, uint8_t data_len)
 
     processing = false;
     return 1;
-}
\ No newline at end of file
+}
diff --git a/src/command/handlers/cmd_sensor.c b/src/command/handlers/cmd_sensor.c
index cf49635..7f98820 100644
--- a/src/command/handlers/cmd_sensor.c
+++ b/src/command/handlers/cmd_sensor.c
@@ -39,6 +39,11 @@ int cmd_msp(const uint8_t *data, uint8_t data_len)
     ARG_UNUSED(data);
     ARG_UNUSED(data_len);
 
+    if (processing)
+    {
+        return 1;
+    }
+
     int16_t accel[3], gyro[3];
 
     int ret = imu_read(accel, gyro);