diff --git a/src/W800_SDK_v1.00.10/include/driver/wm_pmu.h b/src/W800_SDK_v1.00.10/include/driver/wm_pmu.h
index 8f14a69..d18707f 100644
--- a/src/W800_SDK_v1.00.10/include/driver/wm_pmu.h
+++ b/src/W800_SDK_v1.00.10/include/driver/wm_pmu.h
@@ -146,6 +146,7 @@ void tls_pmu_sdio_isr_register(tls_pmu_irq_callback callback, void *arg);
  */
 void tls_pmu_clk_select(u8 bypass);
 
+/** NOT PART OF THE OFFICIAL SDK **/
 /**
  * @brief           Starts the internal 32K oscillator calibration cycle.
  * 
@@ -155,6 +156,7 @@ void tls_pmu_clk_select(u8 bypass);
  * 
  */
 void tls_pmu_clk_calibrate(void);
+/**********************************/
 
 
 /**
diff --git a/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h b/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h
index d352010..37c811d 100644
--- a/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h
+++ b/src/W800_SDK_v1.00.10/include/driver/wm_rtc.h
@@ -59,7 +59,6 @@ void tls_set_rtc(struct tm *tblock);
 void tls_get_rtc(struct tm *tblock);
 
 /** NOT PART OF THE OFFICIAL SDK **/
-
 /**
  * @brief Checks if the RTC peripheral is running or not
  * 
@@ -67,7 +66,6 @@ void tls_get_rtc(struct tm *tblock);
  * @return false 
  */
 bool tls_is_rtc_running(void);
-
 /**********************************/
 
 /**