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AN3133 データシート(PDF) 34 Page - STMicroelectronics

部品番号 AN3133
部品情報  A real-time clock is a computer clock that keeps track of the current time
PDF  43 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3133 データシート(HTML) 34 Page - STMicroelectronics

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Application examples
AN3133
34/43
Doc ID 16956 Rev 5
Figure 19.
Main program flowchart
Start the example.
ENABLE RTC Clock = LSE and wait 1s
for the stabilization of the LSE
Init the Calendar
Init the LCD and Clear it
Config IOs for LEDs, Key and
Joystick buttons.
Enable EXTI Interrupts for KEY,
UP and DOWN buttons.
Disable Interrupts
Display Time on LCD
hh:mm:ss:xxx
Enable Interrupts
ExTamper_02
Init Tamper 1
Filter = 2 Samples
Sampling Frequency = 1Hz
Detection Level = Low
Enable Tamper 1
Enable Tamper 1 Interrupt



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