cpg.c

来自「Renesas(Hitachi SuperH)SH7708的UCOS2源码,uC」· C语言 代码 · 共 25 行

/*---------------------------------------------------------------------------*/
/*  Clock Pulse Generator Module                                             */
/*  Author: Kuan, Yeou-Fuh                                                   */
/*---------------------------------------------------------------------------*/
#include "sh7707.h"



void ChangingFreq ( void );

/*-----------------------------------------------------------------*/
/*  Changing the frequency of internal clock and peripheral clock  */
/*-----------------------------------------------------------------*/
void ChangingFreq ()
{
	
//   WTCSR = 0xA507;     /*  Stop WDT, Set Division Ratio of WDT count clock  */
//   WTCNT = 0x5A01;     /*  Set the counter value of PLL 1 settling time     */
//   FRQCR = 0x01E0;     /* 4:1:1     Mode3,4,5,6  */
	WTCSR = 0xA504;
	FRQCR = 0xA101;

/* FRQCR = 0x0112;        2:1:1/2   Mode3,4,5,6  */
}