AT89C51CC02CA-RATUM datasheet(91/159 Pages) ATMEL

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AT/T89C51CC02

4126L–CAN–01/08

// Enable the CAN macro

CANGCON = 02h

2. Configure message object 3 in reception to receive only standard (11bit

identifier) message 100h

// Select the message object 3

CANPAGE = 30h

// Enable the interrupt on this message object

CANIE = 08h

// Clear the status and control register

CANSTCH = 00h

CANCONCH= 00h

// Init the acceptance filter to accept only message 100h in standard mode

CANIDT1 = 20h

CANIDT2 = 00h

CANIDT3 = 00h

CANIDT4 = 00h

CANIDM1 = FFh

CANIDM2 = FFh

CANIDM3 = FFh

CANIDM4 = FFh

// Enable channel in reception

CANCONCH = 88h // enable reception

Note: to enable the CAN interrupt in reception:

EA = 1

ECAN = 1

CANGIE = 20h

3. Send a message on the message object 0

// Select the message object 0

CANPAGE = 00h

// Enable the interrupt on this message object

CANIE = 01h

// Clear the Status register

CANSTCH = 00h;

// load the identifier to send (ex: 555h)

CANIDT1 = AAh;

CANIDT2 = A0h;

// load data to send

CANMSG = 00h

CANMSG = 01h

CANMSG = 02h

CANMSG = 03h

CANMSG = 04h

CANMSG = 05h

CANMSG = 06h

CANMSG = 07h

// configure the control register

CANCONCH = 18h

4. Interrupt routine

// Save the current CANPAGE

AT89C51CC02CA-RATUM Datasheet(PDF) 91 Page - ATMEL Corporation

AT89C51CC02CA-RATUM Datasheet(HTML) 91 Page - ATMEL Corporation

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