Digilent 410-185P-KIT - Manual (Page 18)

Cerebot MC7 Reference Manual
www.digilentinc.com page 18 of 21
Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.
J20 Motor Power Connector
This is used to connect to the external power supply that powers the bridge circuits. This
powers the high side of the bridges and provides the ground connection for the current
return path.
J21 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. This provides
the input voltage to the 5V switching regulator on the board. Connectors J21, J22, and
J24 are wired in parallel.
J22 External Power Connector
This is a two pin header connector that provides another mean of connecting an external
power supply. Connectors J21, J22, and J24 are wired in parallel.
J24 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.
Connectors J21, J22, and J24 are wired in parallel.
JP1 CAN 5V0 Enable
This jumper is used to enable/disable providing 5V to the CAN connector. Insert the
shorting block to connect the board 5V0 supply to pins 9 & 10 of the CAN connector.
Remove the shorting block to disconnect the 5V0 supply.
JP2 &
JP3 SPI Master/Slave Select
These jumpers are used to select whether the Cerebot MC7 is configured as an SPI
master device or as an SPI slave device. See the SPI Interface section above for a
discussion of how to set these jumpers.
JP4 Do Not Use
JP5 &
JP8 Internal Servo Bus Power Select
These jumpers are used to connect the REG5V0 bus (the output of the internal 5V
switching regulator) to the servo power bus to provide power to servos. Install shorting
blocks on these two jumpers to power the servo power bus from the internal power
supply. Remove the shorting blocks from these two jumpers when the servo power bus is
powered from an external supply
JP6 CAN Termination
This jumper is used to enable/disable the 120 ohm termination resistor for the CAN
interface. Insert the shorting block to enable the termination resistor, remove it to disable
the termination resistor.
JP7 Do Not Use
JP9,
JP10,
JP11, &
JP12 Voltage Monitoring Disconnect
These jumpers are used to enable/disable monitoring the voltage at the outputs of the
four half bridge circuits. With shorting blocks installed on these jumpers the voltage at the
output of each bridge is connected to the dsPIC voltage monitoring analog inputs.