HP Pro 1105 User's Guide download pdf (Page 27)

page 27

Controller Area Network (CAN or CAN

bus) is a vehicle bus standard designed

to allow microcontrollers and devices to

communicate with each other within a

vehicle without a host computer. CAN

is a message-based protocol, designed

specically for automotive applications

but now also used in other areas such

as industrial automation and medical

equipment. EasyMx PRO

™

v7 for STM32

is equipped with SN65HVD230 – a 3.3V

CAN Transceiver and a pair of screw

terminals which provide microcontrollers

with integrated CAN controller with the

necessary physical interface for CAN

communication. Make sure to correctly

connect negative and positive dierential

communication lines before using this

module.

VCC-3.3V

R57 10

CN28

CANH

CANL

TX-CAN

RX-CAN

1

2

3

54

6

7

8

D

GND

Vdd

R Vref

CANL

CANH

Rs

U7

SN65HVD230

1 2 3 4 5 6

7

8

O

N

SW12

PD0

PD1

DATA BUS

Enabling CAN

Figure 13-1: CAN connection schematic

CAN

communication

EasyMx PRO

v7

communication

In order to enable CAN communi-

cation, you must push SW12.5

(PD1) and SW12.6 (PD0) to

ON position. This connects the

TX and RX lines to appropriate

microcontroller pins and its CAN

module.

Figure 13-2:

enabling

CAN

communica-

tion

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 43 44

Comments to this Manuals

No comments