New Life Games Tech Forums

General NLG Chat => The Slot Shop **Tech Talk** => Topic started by: rjpohl on November 27, 2008, 11:48:12 AM



Title: different checksum reading
Post by: rjpohl on November 27, 2008, 11:48:12 AM
I have a TOP2003 and Chinese knock off Willem.  I'm reading the same chip in both and get a slightly different checksum.

in the Top2003 I get:  17e3ddb
in the Willem I get:      0x3DDB

this is a 27c010 eprom, I've read several other chips and the first few digits don't match and the last 4 do match.

thanks for your help



Title: Re: different checksum reading
Post by: idesign on November 27, 2008, 12:28:59 PM
Not sure why you are getting the first digits different but it's the last 4 that count and they are identical.


Title: Re: different checksum reading
Post by: rickhunter on December 01, 2008, 03:00:42 PM
The longer checksum is 32 bit, the shorter one is 16bit.  If you had an 8bit checksum it would only be the last two digits.