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Cerebot 32MX7 Reference Manual

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Appendix C: Connector Descriptions and Jumper Settings

Label

Function

I2C port #2 daisy chain connector

This connector provides access to the I2C signals, power and ground for I2C port #2.

I2C port #1 daisy chain connector

This connector provides access to the I2C signals, power and ground for I2C port #1.

CAN #1 Connector

This connector is used to access the signals for CAN #1.

J10

CAN #2 Connector

This connector is used to access the signals for CAN #2.

J11

Ethernet Connector

This connector provides access to the 10/100 Ethernet port.

J12

J14

Do Not Use

J15

Debug USB Connector

This connector is used to connect the on-board programming and debug circuit to the PC for

use with the MPLAB IDE.

J16

Power supply source select

This jumper is used to select the source of main board power.

Place a shorting block in the upper, “USB” position to have the board powered from the USB

device connector, J19.

Place a shorting block in the center, “EXT” position to have the board powered from one of

the external power connectors, J17 or J18.

Place a shorting block in the lower, “DBG” position to have the board powered from the

debug USB connector, J15.

J17

External Power Connector

This is a 2.5mm x 5.5mm, center positive, coax power connector used to provide external

power to the board. The optional Digilent 5V Switching Power Supply is connected here.

J18

External Power Connector

This is a screw terminal connector used to provide external power to the board. Be sure to

observe proper polarity (marked near the connector) when providing power via this

connector, or damage to the board and/or connected devices may result.

J19

USB Device / OTG Connector

This is a USB micro-AB connector. It is used when using the PIC32MX795 microcontroller to

implement a USB device or OTG Host/Device.

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