Re: How to prevent databse from being overwritten in xmem after a power cycle?

Hi John,
You're probably correct, the battery might be low. I will need to check the voltage.  Thanks again. 
AFTER allocating memory space [ pMemBlock_Member = (far char *) _xalloc(&tempsz, 0, XALLOC_BB); ] , the values are initialized.  However, I don't want to allocate memory if I have already done so before power cycle.

How do i check if startAddrMark and StopAddrMark exist?  If it doesn't exist I would allocate the xmem space and initialized it. If Start/Stop markers already exist, nothing no allocating is necessary.

My current code doesn't work.
 //check to see if the block is initialized (look for the beginning & ending marker)
   if ((*pStartAddrMark_Member != BLOCK_START_MEMBER) || (*pStopAddrMark_Member != BLOCK_END_MEMBER))