瑞萨CAN通信例程--基于M16C29

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APPLICATION NOTE

M16C/29 Group

CAN Demo Set Program

1. Summary

This document describes the program for the CAN demonstration set for the M16C/29 group of Renesas

microcomputers.

been changed in functional additions, etc., be sure to consult the user’s manual of your microcomputer for

confirmation. Please carefully evaluate the suitability of your microcomputer before using this application

note.

The sample program presented here operates under the conditions described below.

• Power supply voltage: 5 V

• Main clock input oscillation frequency: 20 MHz

SW3 and SW4 may be used to change the transmit or receive IDs.

The variable resistor (VR) and SW2 are used to perform CAN transmission.

The LED display pattern is changed by the received data.

REJ05B0776-0100

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P00, P01 Output LED output

name

Shows transmit ID

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This sample program permits you to perform CAN transmission by operating the switches or variable

this program always transmits 1 byte of data. When either board receives data, it changes a 7-segment LED

SW1: Resets the board.

This switch shows the receive ID while you hold it down.

The receive ID is incremented by 1 when you press SW4 while it is displayed. Any receive ID in

to FF

This switch shows the transmit ID while you hold it down.

The transmit ID is incremented by 1 when you press SW3 while it is displayed. Any transmit

Data “01

Data “02

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