Quote:
Originally Posted by Schroedes23
...the roboRIO does not have an internal pullup resistor...I wish they would have designed the pull up resistor internally like on the cRIO.
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According to the
NI roboRIO User Manual, the roboRIO
does have internal pullup resistors on the DIO pins. See page 15:
DIO <9..0> on the DIO port, CS <3..0> on the SPI port, and DIO <13..0> on the MXP all have
40 kΩ pullup resistors to 3.3 V, as shown in Figure 16.
Figure 16 is just a picture of a 40 kΩ resistor between the DIO line and the +3.3 V bus.