4.2.1. User-defined CAN Baud Rate Configuration
The I-2533CS series allows users to set the special CAN baud rate by using the
“User-defined CAN Baud Rate” field of the Utility.
Figure 4-2 Set and read the CAN filter configuration
The CAN bus baud rate is calculated by the parameter
BRP
(Baud Rate Prescaler),
TSEG1
(The delay from the nominal Sync point to the sample point minus one) and
TSEG2
(The delay from the sample point to the next nominal sync point minus one).
Please refer to the following formula to calculate the BRP, TSEG1 and TSEG2
parameters of your expected CAN baud rate and click the “Save” button to download
this parameter into module.
Expected CAN baud rate
=
48000 / ((BRP +1) * (TSEG1 + TESG2 + 3)) (Kbps)
Note:
BRP:
Baud Rate Prescaler.
Range:
0x000 ~ 0x3FF
TSEG1
:
The delay from the nominal Sync point to the sample point minus one.
Range:
0x0 ~ 0xF
TSEG2
:
The delay from the sample point to the next nominal sync point minus one.
Range:
0x0 ~ 0x7
Example:
Expected CAN baud rate = 1000 Kbps
BRP: 0x003
TSEG1: 0x9
TSEG2: 0x0
I-2533CS series CAN to Single Mode Fiber Bridge User Manual (version 1.0.0)
Page: 25
Copyright © 2013 ICP DAS Co., Ltd. All Rights Reserved. E-mail: service@icpdas.com
1000 (Kbps) = 48000 / ((3 +1) * (9 + 0 + 3))
ГК
Атлант
Инжиниринг
–
официальный
представитель
в
РФ
и
СНГ
+7(495)109-02-08 sales@bbrc.ru www.bbrc.ru