tio0_pwm_main.c

瑞萨CAN通讯单片机程序

/*""FILE COMMENT""*****************************************************
 *	M32R C Programming		Rev. 1.00
 *		 < Sample Program for TIO0 PWM output (main routine) >
 *
 *	Copyright (c) 2003 Renesas Technology Corporation
 *			   And Renesas Solutions Corporation
 *			   All Rights Reserved
 *********************************************************************/

/************************************************************************/
/*		Include file						*/
/************************************************************************/

#include		"..\inc\sfr32170_pragma.h"

/************************************************************************/
/*		Function prototype declaration				*/
/************************************************************************/

	void		main(void);				/* Main function */
	void		init_func(void);			/* Initial setup function */
	void		timer_init(void);			/* Timer initialization */

/************************************************************************/
/*		Definition of external reference			*/
/************************************************************************/

extern void		DisInt( void );				/* Interrupt disable function */
extern void		EnInt( void );				/* Interrupt enable function */

extern void		TIO0_PWM_init( void );			/* Initialize TIO0 PWM output mode */
extern unsigned long	TIO0_PWM_out( unsigned short, unsigned short );	/* Start TIO0 PWM output */

/*""FUNC COMMENT""*******************************************************
 * Function name: timer_init()
 *-----------------------------------------------------------------------
 * Description	: Initialize timer
 *-----------------------------------------------------------------------
 * Argument	: -
 *-----------------------------------------------------------------------
 * Returns	: -
 *-----------------------------------------------------------------------
 * Notes	:
 *""FUNC COMMENT END""***************************************************/
void timer_init(void)
{
	PRS0 = ( 100 - 1);					/* Set prescaler(10us@10MHz) */
}

/*""FUNC COMMENT""*******************************************************
 * Function name: init_func()
 *-----------------------------------------------------------------------
 * Description	: Call various initialization functions
 *-----------------------------------------------------------------------
 * Argument	: -
 *-----------------------------------------------------------------------
 * Returns	: -
 *-----------------------------------------------------------------------
 * Notes	:
 *""FUNC COMMENT END""***************************************************/
void init_func(void)
{
	timer_init();						/* Initialize those related to timer */
}

/*""FUNC COMMENT""*******************************************************
 * Function name: main()
 *-----------------------------------------------------------------------
 * Description	: While using TIO0 in PWM output mode, this program outputs a PWM waveform from the TO11 pin
 *		: with a 2ms period (when the source clock frequency = 10 MHz) and a 10/256 high duty cycle.
 *-----------------------------------------------------------------------
 * Argument	: -
 *-----------------------------------------------------------------------
 * Returns	: -
 *-----------------------------------------------------------------------
 * Notes	:
 *""FUNC COMMENT END""***************************************************/
void main(void)
{
	DisInt();						/* Disable interrupt */

	init_func();

	TIO0_PWM_init();					/* Initialize TIO0 PWM output mode */

	EnInt();						/* Enable interrupt */

	TIO0_PWM_out( (unsigned short)200, (unsigned short)16);	/* Start TIO0 PWM output */

	while( 1 );
}