RTC doesn't works properly with HAL enabled

[stefano6641]

Good morning,

  I have some problems with my iMX 1021 board with HAL enabled. The application failed to write HPRC register in SNVS bank, no error reported but data aren't set.

The same binary file, loaded on a bord without HAL active, works properly.

Some help?

Thanks,

Stefano

[stefano6641]

Another addiction: I can write in HPRC register just under boot, for some time. After that I can't do it. I'm not sure which condition lock the write on HPRC register.

BR,

Stefano

[stefano6641]

In addiction seems that LP_SEC_VIO and SV1 bits of HPSVSR register are high.

[Hui_Ma]

Hi,

First of all, sorry for the later reply.

I am not sure if you refer the MCUXpresso SDK example <snvs_hp_rtc> for RT1020?

Mike