SH7047F datasheet(29/85 Pages) RENESAS

29 / 85 page

Rev. 1.00, 08/03, page 21 of 74

2.8

Reception Program Listing

/********************************************************************************/

HCAN-2 Reception Program (Example 2)

/********************************************************************************/

#include <stdio.h>

/* Library function header file */

#include <machine.h>

/* Library function header file */

#include "SH7047.h"

/* Peripheral register definition header file */

/********************************************************************************/

Function prototype declarations

/********************************************************************************/

void r_main(void );

void RM1_IRR1(void);

/********************************************************************************/

Define constants

/********************************************************************************/

#define DTMR

(*(unsigned short *)0xFFFFD080) /* DTC register data */

#define DTCRA (*(unsigned short *)0xFFFFD082) /* DTC register data */

#define DTCRB (*(unsigned short *)0xFFFFD086) /* DTC register data */

#define DTSAR (*(unsigned long *)0xFFFFD088)

/* DTC register data */

#define DTDAR (*(unsigned long *)0xFFFFD08C)

/* DTC register data */

#define MBbuff (*(unsigned char *)0xFFFFD100) /* Storage area for received data */

/********************************************************************************/

Main routine

/********************************************************************************/

void r_main(void){

unsigned short *work;

/* Initialize storage area for received data */

work = (unsigned short *)0xFFFFD100;

do {

*work = 0x0000;

work++;

} while(work < (unsigned short *)0xFFFFD108);

/* DTC settings */

DTMR = 0xA890;

/* Increment both DTSAR and DTDAR

after transfer completes, set block transfer mode and byte transfer */

DTSAR = (unsigned long)&HCAN_MB0.MD7; /* Set transfer source address */

DTDAR = (unsigned long)&MBbuff;

/* Set transfer destination address */

DTCRA = 0x0001;

/* Block transfer: 1 block */

DTCRB = 0x0008;

/* Block length: 8 bytes */

DTC.DTBR = 0xFFFF;

/* Register data base address */

DTC.DTEF |= 0x04;

/* HCAN-2 interrupt (RM1) */

/* Clear bit MCR0 */

HCAN_MCR = 0x0000;

/* Clear reset request bit */

/* Set local acceptance filter */

HCAN_MB0.LAFM15 = 0x0000;

/* Set identifier filter mask for mailbox 0 */

/* Clear bit IRR0 */

HCAN_IRR = 0x0001;

/* Clear reset interrupt flag (to clear, write 1) */

/* Set pins */

SH7047F Datasheet(PDF) 29 Page - Renesas Technology Corp

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