Problem in upgading from P89C51RD2HBBD to P89C51RD2BBD

[Lim]

Hi,

I had been using P89C51RD2HBBD (1st generation RD2) for my product. Recently I had upgraded my product to P89C51RD2BBD (2nd generation).  But after I changed it, I have encountered the following problem:

With the same hex code, I flashed it into the P89C51RD2BBD using FlashMagic and change the clock mode to

[erik malund]

1) WHY do you use a chip without reading the errata first, the link to that and other good stuff is on the 'cover page' for the non-H Rx2
http://www.semiconductors.philips.com/pip/P89C51RD2BA_01.html
2) if you had implemented NoTouch you would never have had this problem

Erik

[Lim]

Thanks Erik.... I got my problem solved!!!!!