RTC PCF2127 default time issue

キャンセル
次の結果を表示 
表示  限定  | 次の代わりに検索 
もしかして: 

RTC PCF2127 default time issue

1,110件の閲覧回数
jack-6602
Contributor I

Hi, 

I used RTC pcf2127 in our board. We produced 100 units, but recently found out that there are 2 RTCs with a default time of 2065 years.

As you know, there is a limitation in kernel, the system date can not more than 2038, otherwise, the system will not run properly.

My question is why the RTC default time is 2065, and what should be the RTC default time if the RTC is not set?

0 件の賞賛
返信
3 返答(返信)

1,099件の閲覧回数
jack-6602
Contributor I

It means RTC time has random value after reset. Am I right?

0 件の賞賛
返信

1,096件の閲覧回数
guoweisun
NXP TechSupport
NXP TechSupport

Yes I think so!

0 件の賞賛
返信

1,100件の閲覧回数
guoweisun
NXP TechSupport
NXP TechSupport

You can see below descript for the YEAR related register:

guoweisun_0-1704444205103.png

 

0 件の賞賛
返信