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AN3133 Datasheet(PDF) 39 Page - STMicroelectronics

Part # AN3133
Description  A real-time clock is a computer clock that keeps track of the current time
PDF  43 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3133 Datasheet(HTML) 39 Page - STMicroelectronics

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AN3133
Application examples
Doc ID 16956 Rev 5
39/43
Figure 25.
RTC Tamper ISR flowchart
Figure 26.
EXTI ISR flowchart for DOWN button
RTC Tamper1 interrupt routine
Clear Tamper1 flag
Return to Main program
ExChrono_02
Delete recorded data?
Erase recorded data
Reset the chronometer counter?
Reset counter
Yes
Yes
No
No
DOWN button ISR interrupt
Parse saved data using
LEFT/ RIGHT buttons
Clear Interrupt Pending bit
ExChrono_03
UP button pressed?
Yes
No
Return to Main program



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