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DS1302

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ccmcca

Joined: 08 Oct 2005
Posts: 13

DS1302
Posted: Thu Nov 10, 2005 2:29 pm

What is NVR?? In this driver... rtc_write_nvr(address,data) Write to NVR data = rtc_read_nvr(address) Read from NVR

ckielstra

Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

Posted: Thu Nov 10, 2005 2:39 pm

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Quote:

What is NVR??

Non Volatile RAM
Many clock chips have some spare memory that you can use for storing data. This data will not be lost on power off as it is backed up by the same battery the clock is using. Usefull for storing passwords, etc.

Guest


Posted: Thu Nov 10, 2005 2:54 pm

Ok! THANKS You Know wich pin i have to use to connect a battery?

ckielstra

Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

Posted: Thu Nov 10, 2005 3:11 pm

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Anonymous wrote:

You Know wich pin i have to use to connect a battery?

If I remember correctly there are several options, depending on using a standard battery or a rechargeable battery / Super Capacitor. Please study the datasheet from www.maxim-ic.com.

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