dsPICPRO User
’
s Manual
M I K R O E L E K T R O N I K A S O F T W A R E A N D H A R D W A R E S O L U T I O N S F O R T H E E M B E D D E D W O R L D
27
page
MikroElektronika
Development
tools
dsPICPRO
2.0
USB
C
A
N
CAN (Controller Area Network) is a serial network that was originally designed for
the automotive industry, but has also become a popular bus in industrial automation
as well as other applications. CAN is the network established among microcon-
trollers. It is a two-wire, half-duplex, high-speed network system. Half-duplex
means that microcontroller can send and receive data, but only one way at a time.
CAN
Figure 30.
CAN connectors
dsPICPRO development board have two CAN communication devices. In order to
provide a more flexible system, the microcontroller is connected to the PCA82C250
through two jumpers for every CAN communication device. Jumpers J8 and J9 are
used to connect Tx and Rx lines from microcontroller (pins RG1 and RG0) to
CAN1. Jumpers J6 and J7 are used to connect Tx and Rx lines from microcontroller
(pins RF1 and RF0) to CAN2.
Figure 31.
CAN connectors and jumpers
CAN2
connector
CAN1
connector
