Can anybody help me with Cracked MC9S08QG8 Demo Board

[admin]

Hi
I'm Afraid that I've destroyed my demo kit. Demo Board was working good. Bud when I've connected the BDM interface to another cracked device, the Demo Kit get Cracked too. When I tried to connect the BDM Interface to surely working device I make a sure that the Demo Board is cracked becoase the Debugger call error: "Cannot enter background mode"

http://img442.imageshack.us/my.php?image=problemip2.jpg

And when i touched to the Demo Board, the chip U305 and the rezistor R306 was very hot

http://img96.imageshack.us/my.php?image=mc9s08qg8mv4.jpg

So I would like to try change the U305 chip (In my opinion it is cause problems) bud on the chip is writen C6658Z. Bud when i tried to enter this number to Google.com nothing had been found. So i would like to ask you: Did you now the strict name of chip U305? Or did you now what cause problems? Thank you wery much!

I'am sorry, I now that my english is very poor.

Message Edited by Mica on 2007-01-1107:02 PM

[thisobj]

Hi Mica,

The document, DEMO9S08QG8UG.pdf (in the development kit) contains a BOM for the board.

U305 -- IC-Switch-Smt -- (DCT8) SN74LVC2G66DCT, Analog Sw,Bilateral,Dual -- Digi-Key 296-13271-1-ND

R306 -- Res-Carb-Smt (0805) 1K Ohm,5% -- Emtek CR10-102J-TR

Frank

[celsoken]

Dear Frank,

I've got two crancked MC9S08QG8 demo boards and I've checked my documentation and the BOM was supressed. My document is Rev. F and I've checked the only change in rev history was the BOM is supressed.

Could you please send me your old DEMO9S08QG8UG.PDF file so I could fix my boards.

Thanks in advance,

Celso

[admin]

Thank You!!