diff --git a/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c b/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c
index ccbaac19094b66ef92d5372de258145b2fc1fb68..9107107ab019f8dad5de9cd9e425d849606e9896 100644
--- a/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c
+++ b/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c
@@ -189,27 +189,27 @@ static rt_err_t ab32_rtc_control(rt_device_t dev, int cmd, void *args)
     switch (cmd)
     {
     case RT_DEVICE_CTRL_RTC_GET_TIME:
-        *(rt_uint32_t *)args = get_rtc_time_stamp();
-        LOG_D("RTC: get rtc_time %x", *(rt_uint32_t *)args);
+        *(time_t *)args = get_rtc_time_stamp();
+        LOG_D("RTC: get rtc_time %x", *(time_t *)args);
         break;
 
     case RT_DEVICE_CTRL_RTC_SET_TIME:
-        if (set_rtc_time_stamp(*(rt_uint32_t *)args))
+        if (set_rtc_time_stamp(*(time_t *)args))
         {
             result = -RT_ERROR;
         }
-        LOG_D("RTC: set rtc_time %x", *(rt_uint32_t *)args);
+        LOG_D("RTC: set rtc_time %x", *(time_t *)args);
         break;
     case RT_DEVICE_CTRL_RTC_SET_ALARM:
-        if (set_rtc_alarm_stamp(*(rt_uint32_t *)args))
+        if (set_rtc_alarm_stamp(*(time_t *)args))
         {
             result = -RT_ERROR;
         }
-        LOG_D("RTC: set alarm_stamp %x", *(rt_uint32_t *)args);
+        LOG_D("RTC: set alarm_stamp %x", *(time_t *)args);
         break;
     case RT_DEVICE_CTRL_RTC_GET_ALARM:
-        *(rt_uint32_t *)args = get_rtc_alarm_stamp();
-        LOG_D("RTC: get alarm_stamp %x", *(rt_uint32_t *)args);
+        *(time_t *)args = get_rtc_alarm_stamp();
+        LOG_D("RTC: get alarm_stamp %x", *(time_t *)args);
         break;
     }