Hello,

I have a project based on a STM32 using the internal RTC.

I was using the toolchain “arm-eabi-gcc7.2.0-r3” to translate a timestamp UNIX to a tm struct and sthen set my RTC like this :

#include 
#include <sys\time.h>

void RTC_SetTimeByTimeStamp(uint32_t u32_TimeStamp)
{
struct tm* p_time;
/* convert into unix time struct */
p_time = gmtime((time_t*)&u32_TimeStamp);
...
}

All was OK. If I call this function with a timestamp at 1576158671, the p_time struct contain :

12/12/2019  13:51:11

But with the latset toolchain “arm-eabi-gcc9.2.1”, the same function, call with the same timestamp value set the p_time struct with random value like :

2/1/1971721  11:25:06

Thanks for your help.

• This topic was modified 4 years, 11 months ago by support. Reason: formatting