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Author Topic: DS1302 Problem  (Read 507 times)
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joker460
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« on: July 31, 2012, 06:21:20 pm »
 Bigger Bigger Smaller Smaller Reset Reset
Greetings.

The problem I'm having is when connecting the Battery backup.

For example using the serial monitor to capture the data.

Time = 18:55:40
Time = 18:55:41
Time = 18:55:42

Connect Battery backup

Time = 00:00:00
Time = 00:00:00

Disconnect Battery backup

Time = 18:55:55
Time = 18:55:56
Time = 18:55:57


Note: battery backup is 3v and the polarity is correct and being connected to pin 8.

Has anybody seen this type of problem before???

Thanks in Advance
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johnwasser
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« Reply #1 on: July 31, 2012, 07:19:33 pm »
 Bigger Bigger Smaller Smaller Reset Reset
Could it be that the trickle-charge feature was accidentally enabled?  What's the value in location 91?  The two bottom bits should be 0.
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joker460
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« Reply #2 on: July 31, 2012, 09:13:59 pm »
 Bigger Bigger Smaller Smaller Reset Reset
The program I'm using to test is located here: http://arduino.cc/playground/Main/DS1302

It shows it's set at 0x00
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