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AN2326 Datasheet(PDF) 13 Page - STMicroelectronics

Part # AN2326
Description  Calibrating the RC oscillator of the ST7ULTRALITE MCU using the mains
PDF  20 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2326 Datasheet(HTML) 13 Page - STMicroelectronics

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AN2326
Software examples
13/20
.EEPROM_Prog
BTJT FCSR,#PGM,EEPROM_Prog; Wait end of programming (~5ms)
RET
4.1.5
Writing in non volatile memory for products with Data EEPROM
To store final value of RCCR/SICSR registers in EEPROM, add theses lines after disabling the timer in-
terrupts in the main program.
ld
RCCR, A
bset
EECSR,#1
;start to enter value in the EEPROM
ld
$1003,A
;load value of the RCCR in EEPROM
ld
A, SICSR
ld
$1004,A
;load value of the SICSR in EEPROM
bset
EECSR,#0
;start to write in the EEPROM
wait
btjt
EECSR,#0,wait
;wait for the end of writing in EEPROM



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