Hi everyone,
my issue is show below. I needed of set alarm on DS3231 RTC that allow to maintain the INT/SQW pin at low logic level for a define time windows.
The problem is that now this pin is to perform a glitch in order to signaling a new calendar alarm.
Is make possible to perform an alarm that set LOW level logic the INT/SQW pin for a determinate time windows (example 30min?), without make a single glitch?
Thankyou. Best regards.
Do you have some code to post?
The alarm pin should have a pull up to Vcc and is normally HIGH if there is no alarm. Then, it stays low after activation until cleared by your code. You can leave it low for as long as you like.
Please explain more about this statement. What is "to perform a glitch". Something is unclear in the translation from your language to English.
The problem is that now this pin is to perform a glitch in order to signaling a new calendar alarm.