I/O Channel Types/Numbers - Kauai Labs VMX-pi Reference Manual

VMX-pi Hardware Reference Manual (version 1.10)
CommDIO Yes
AnalogIn

I/O Channel Types/Numbers

VMX-pi follows a Channel-numbering scheme for all I/O connectors (except the signals on the CAN
connector), allowing application software to address and reconfigure the functions on each channel.
Note that all Channel Numbers start from 0, and begin with FlexDIO connectors on the bottom-right of
the below diagram and increase in a counter-clockwise direction.
Figure 4 VMX-pi Channel Types and Numbers
I/O Channel Type
Flex DIO Connectors
Flex DIO Header
High Current DIO
Analog Input
Comm DIO
Yes
Yes
I2C UART SPI
27
29 31 33
26
28 30 32
CommDIO Connectors
(ch. 26-33)
Connector Channel
Type Numbers
Connector 0-7
Header 8-11
Header 12-21
Header 22-25
Connector 26-33
Yes Yes
HighCurrentDIO Input/
Output Selection Jumper
1
3 5 7
0 2
4 6
FlexDIO Connectors
(ch. 0-7)
Location
Bottom-right
Left-side Top
Left-side mid
Left-side bottom
Bottom-left
11
Yes Yes Yes