Hi friends,

Anbout six month ago when I started using LPC9xx chips with MCB900 and FlashMagic, I had taken good help from many of you. Since then I have been using these two tools to program LPC922 CPUs. I have observed some typical problems. And some clue-less solutuons too.

I have P4 machine and windows98 OS
MCB900 v4 on COM1
Flashmagic V2.07, DLL v1.74
Target CPU (LPC922) connected through header, chip on MCB900 removed.

Problem: Sometime all of a sudden FlashMagic stops communicating to target CPU. After many retries it never succeed. Just like CPU suspected failed. Repowering of MCB900 or reloading of FlashMagic donot help.

Sol-1: After complete reboot of system, it works normal. Sometime this also donot work.

Sol-2: When sol-1 donot worked, I removed failed target CPU and connected a fresh-one, FlashMagic loaded successfully. After that again I connected suspected-failed CPU, that also worked. And I could reprogram it many times, and still its working.

This behavious I couldnot understand. But still, it works. So I am sending this case study to forum.

With warm regards.

Yours truly,
Hitesh Mahant
www.vital4all.com