diff options
Diffstat (limited to 'components/libc/compilers')
| -rw-r--r-- | components/libc/compilers/common/time.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/components/libc/compilers/common/time.c b/components/libc/compilers/common/time.c index deda18a560..e13f81c2f7 100644 --- a/components/libc/compilers/common/time.c +++ b/components/libc/compilers/common/time.c @@ -473,12 +473,17 @@ static int clock_time_system_init() rt_device_t device; time = 0; + +#ifdef RT_USING_RTC device = rt_device_find("rtc"); if (device != RT_NULL) { /* get realtime seconds */ rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time); } +#else + LOG_W("Cannot find a RTC device to provide time!"); +#endif /* get tick */ tick = rt_tick_get(); @@ -591,6 +596,7 @@ int clock_settime(clockid_t clockid, const struct timespec *tp) _timevalue.tv_usec = MICROSECOND_PER_SECOND - (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK; _timevalue.tv_sec = second - tick/RT_TICK_PER_SECOND - 1; +#ifdef RT_USING_RTC /* update for RTC device */ device = rt_device_find("rtc"); if (device != RT_NULL) @@ -599,6 +605,9 @@ int clock_settime(clockid_t clockid, const struct timespec *tp) rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &second); } else +#else + LOG_W("Cannot find a RTC device to save time!"); +#endif return -1; return 0; |