Intrepid Control Systems neoVI, Hardware Help

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UA RT/ISO9141/KW2K/LIN - neoVI
Ma in
A pplies to
neoVI
Blue , neoVI Red , neoVI FIRE , and neoVI Yellow
T he ne o VI suppo rts a UAR T /ISO 9141/Ke ywo rd 2000/LIN ne two rk . T his ne two rk is ba sica lly a UAR T /SC I unit with a ha rdwa re le ve l shifte r (Figure 1). T he re a re m a ny va ria nts o f a UAR T ne two rk sche m e s which ca n be m o nito re d
with this ne two rk .
As sho wn in figure 1, the ne two rk ha s a pull up vo lta ge fo r the K a nd L line o f VBAT T. In ne o VI Blue , the pull up re sisto r ca n a lso be cha nge d. P le a se se e the Ha rdwa re Se ttings to pic fo r m o re info rm a tio n o n cha nging the se
ite m s. P le a se no te tha t the fa cto ry de fa ult pull up vo lta ge is VBAT T with a pull up re sisto r o f 510 o hm s.
Figure 1 - neoVI implements a hardware level shifter for each K and L line.
As sho wn in figure 2, the re a re m a ny se ttings yo u ca n a djust fo r yo ur UAR T ne two rk . T he se o ptio ns a re discusse d in the fo llo wing to pics:
T im ing/Ba ud R a te , Initia liza tio n , a nd Erro r C he ck ing .
Intrepid Hardware Help UART/ISO9141/KW2K/LIN
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