Hardware Standby Entry @ RTC write operation

danielehrenmann9 · ‎2005-08-17

Posted on August 17, 2005 at 12:25

danielehrenmann9 · ‎2005-08-17

Posted on August 17, 2005 at 12:25

In the reference manual rev. 6 on page 43 i see the following restrictions.

Since any write operation to the Real Time Clock registers requires at least two 32

kHz clock cycles to complete, if software configures the RTC registers,

Standby mode can only be entered after the write operation to the RTC

register is over. This can be monitored by polling the RTOFF bit in the RTC_CRL

register.

When i use the Software Standy Entry, i can polling the RTOFF.

But, i can nothing doing, when i use the Hardware Standby Entry.

Can a Hardware Standby Entry during write operation to the RTC cause any problems?

thanks,

knacki