scm_tests.c

来自「Freescale MCF5445evb 参考测试代码」· C语言 代码 · 共 41 行

/*!
 * \file    scm_tests.c
 * \brief   SCM Test Routines
 *
 * Test the System Control Module RedStripe
 *
 * \version $Revision: 1.1 $
 * \author  Michael Norman
 */
 
#include "common.h"
#include "scm_tests.h"
#include "watchdog.h"

/********************************************************************/
void
scm_wdt_timeout (void)
{
    watchdog_init();
}
/********************************************************************/
void
scm_wdt_invalid_service (void)
{
    int i;
    
    watchdog_init();
    
    for (i = 0; i < 1000; i++)
        ;
        
    /* 
     * If the CWT is enabled, then any write of a data value other 
     * than 0x55 or 0xAA causes an immediate system reset, regardless 
     * of the value in the CWCR[CWRI] field.
     */
    MCF_SCM_CWSR = 0x55;
    MCF_SCM_CWSR = 0xA5;
}
/********************************************************************/