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AN07-00200-03E
98
Start UART reception
interrupt processing
Synch break
detected?
ICU interrupt
authorized
End UART reception
interrupt processing
FRT timer
operation
Reception ID?
Data send
processing
Check sum reception
processing
Yes
No
ID reception
processing
Data reception
processing
Yes
No
Check sum send
processing
Create UART reception
interrupt
Figure 5-10 LIN communication flowchart (interrupt routine: UART reception interrupts)
Start ICU interrupt
processing
End ICU interrupt processing
Processing to obtain ICU
timer value 1
Processing to obtain ICU
timer value 2
Baud rate adjustment
processing
Create input capture (ICU)
interrupt
Figure 5-11 LIN communication flowchart (interrupt routine: input capture interrupts)