OLIMEX© 2017
PIC32-EMZ64 user's manual
6.3.2 CAN
The board has a CAN transceiver MCP2551 and a three pin connector. The names of the signals
available at each pin are also printed near the connector.
Pin #
Signal name
1
GND
2
CANL
3
CANH
Note that you can enable a termination resistor between CANL and CANH. CAN_T jumper is an
SMT jumper located at the bottom of the board. It configures whether to have a 120 Ohm
termination resistor connected between CANL and CANH signal lines. By default CAN_T is open
– the 120 Ohm termination resistor between CANL and CANH is disconnected.
6.3.3 USB
The board has two USB connectors. USB_HOST is a type A female connector and USB_DEV is a
micro USB connector. However, only one of them can be connected to the processor at a time. By
default the USB_HOST connector is active. You can disable USB_HOST and enable USB_DEV
connector by modifying the position of the three nearby PTH jumpers.
By default the jumpers are set to positions: HOST_DM; HOST_DP; HOST_ID. In this case
USB_HOST connector is enabled. USB_HOST is a female USB type A connector and the pinout is
visible below:
Pin # Signal name
Processor pin #
1 +5V_HOST_PWR
-
2 USB_HOST_DM
36
3 USB_HOST_DP
37
4
GND
-
In this setup of jumpers – USB_ID is connected to ground via 10K resistor.
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