Bit Time Calculations for the Microchip CAN

 

Setup Criteria
Oscilator Frequency 8,000 MHz
Target CAN Bus Baud Rate 125,000 kbps

 

Selected Options
BRP-1 (Baud Rate Prescaler) 3
Tq (Time Quanta) 1,000 µs
Number of Time Quanta 8
% Error of Target Baud Rate 0,0 %

 

Bit Timing Setup in Tq
Propagation Delay 1
Phase Segment 1 3
Phase Segment 2 3
Syncronization Jump Width (SJW) 1

Multiple bit sampling is off. Wakeup filter is off.

Bit Timing Diagram

 

Configuration Register Setup (PIC18/MCP251X) (neoVI blue/green, ValueCAN 2)
Register Binary Hexadecimal
CNF1/BRGCON1 b'00000011' 0x03
CNF2/BRGCON2 b'10010000' 0x90
CNF3/BRGCON3 b'00000010' 0x02
Configuration Register Setup (dsPIC33F,PIC24H,dsPIC30) (neoVI Red/Fire/Test/Yellow/ECU, ValueCAN 3)
Register Binary Hexadecimal
CICFG1 b'0000000000000011' 0x0003
CICFG2 b'0000001010010000' 0x0290

Generated 12:33:57 pm 09.07.2016
Microchip CAN Bit Timing Calculator by Intrepid Control Systems, Inc. ( www.intrepidcs.com )