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AN2334 Datasheet(PDF) 9 Page - STMicroelectronics

Part # AN2334
Description  Complete car door module
PDF  22 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2334 Datasheet(HTML) 9 Page - STMicroelectronics

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AN2334
Algorithms
9/22
Figure 3.
Simplified algorithm flowcharts
NO
Reset
Init
Ext. WDG reload
Paral. Port and keys read
Load turn ON/OFF
Diagnostic
Send LIN Msg to PC
NO
Key or keypad
Pushed
NO
Reset
Init
Ext. WDG reload
Paral. Port and keys read
Load turn ON/OFF
Diagnostic
Send LIN Msg to PC
NO
Key or keypad
Pushed
VNH2
L9950
SPI send MSG
Window Lift Routine
Load Turn ON/OFF
Turn On Charge Pump
VNH2 or
L9950
LOAD ?
VNH2
L9950
SPI send MSG
Window Lift Routine
Load Turn ON/OFF
Turn On Charge Pump
VNH2 or
L9950
LOAD ?
250 ms Task
LIN Msg Request to Dashboard
Receive Data
Defroster
ON
SPI send Msg
Turn Light ON
YES
NO
SPI send Msg
YES
NO
PWM1 On
PWM2 On
250 ms Task
LIN Msg Request to Dashboard
Receive Data
Defroster
ON
SPI send Msg
Turn Light ON
YES
NO
SPI send Msg
YES
NO
PWM1 On
PWM2 On



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