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AN2288 Scheda tecnica(PDF) 19 Page - STMicroelectronics

Il numero della parte AN2288
Spiegazioni elettronici  Single-phase energy meter with tamper detection based on ST7FLITE2x
PDF  29 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2288 Scheda tecnica(HTML) 19 Page - STMicroelectronics

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AN2288
Software routines
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Figure 16. Main routine
main
ASM_init ( )
init ( )
Enable interrupts
PA2 port configured for
calibration mode detection
Initialize LCD module
Referesh LCD to make
all segments null
Display kWh, Vrms, Irms, power
factor, line frequency, Current
Date and Time in rolling manner
Anti tampering detection algorithm
to detect whether phase or neutral
line tampering is done or not
Update kWh energy variable to up-
date kWh based on pulses
Gain switching is done based on
current magnitude



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