Hello,
I recently migrated to P89V51RC2 from P89C51RC2.
The TN06007 migration document says you need to also change watchdog code as shown below

Init:
{
WDTD= reload value ( I used 254) ; // Reload value counter for specific
// period .See data sheet
WDTC= 0x31 (Typo ? should be 0x19); // 00011001 = output enabled,
// watchdog timer reset enabled,
// Start timer.
}
Main:
{
While 1;
{
WDTC |= 0x02; // reset Watchdog counter
// user program
}

I did this and noticed that when I commented the WDTC |= 0x02 line, the Watchdog timeout stays constant at about 7-8 seconds no matter what value I put in the rload counter. I use a 12Mhz xtal.
Has anyone seen this ?

thanks,
Nathan