8523 alarm
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rhartl
- Posts: 126
- Joined: Tue Jan 27, 2015 1:31 pm
8523 alarm
So I went ahead and used info from the data sheet for the 8523 to create an alarm. I have a problem I can't solve relating to signaling an alarm. In the data sheet it states that int1 is used for both int1 and clock out. I think that on your breakout card int1/clock out is connected to sqw What I seem to be getting from SQW is output that I think is clock out and have not been able to figure out how to disable clock out so that the only thing coming out of SQW is the interrupt for the alarm. I need this to wake up the processor. Thanks.
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rhartl
- Posts: 126
- Joined: Tue Jan 27, 2015 1:31 pm
Re: 8523 alarm
So for anyone else who might be having this problem. The solution is to send the value 0x38 to register 0xF, and that disables the Clockout and allows you to use SQW as an interrupt flag with a value of LOW. See table 35 in the data sheet the last entry.
Please be positive and constructive with your questions and comments.