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Communication between Master and Slave Nodes Based on CANopen+uC/OS_II Platform

Author: WangRuiPeng
Tutor: YuZhenSheng
School: Tianjin University
Course: Communication and Information System
Keywords: CAN bus CANopen protocol uC / OS_II operating system ARM7 Communication between master and slave nodes
CLC: TP273.5
Type: Master's thesis
Year: 2007
Downloads: 356
Quote: 4
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Abstract


CANopen is based on the CAN bus application layer protocol. CAN bus data transfer based on the definition of different frame structures , forming a PDO, SDO, Heartbeat and a series of sub- agreements by these sub- agreements constitute an application layer protocol data transmission became CANopen. uC / OS_II is an open source real-time multi -tasking operating system . Its kernel provides task scheduling and management, time management, task synchronization and communication , memory management and interrupt service functions. uC / OS_II for small control systems , with the implementation of high efficiency, small footprint, excellent real-time performance and scalability , and other characteristics . PHILIPS LPC2129 ARM7 chip company is a real-time simulation and tracking 32-bit ARM7TDMI-S CPU, and with 256k bytes (kB) of embedded high speed Flash memory. LPC2129 In addition to having a plurality of 32-bit timers , 4- channel 10-bit ADC, PWM channels , 46 GPIO lines with up to nine external interrupt , but also has two separate built-in CAN controller CAN bus interface . Paper presented at the PHILIPS LPC2129 ARM7 chip companies achieve CANopen uC / OS_II communication between the master and slave nodes system software architecture design and hardware debugging process . Main work includes: ARM7 chip LPC2129 transplant uC / OS_II, transplant CANopen, in uC / OS_II embedded CANopen operating system kernel design system CANopen communication between master and slave node software architecture , writing software , debug hardware circuits. CANopen is a CAN bus based mainstream of today's application-layer protocols. CANopen-based data communication is used in automotive electronics , industrial control , marine electronic equipment, medical equipment and other fields, the current development trend of CANopen strong , continue to be used in various fields , will become the industry 's development priorities.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system > Computer control, computer control system
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