PBP,MicroCode ICD and EasyPIC4

[exelanoz]

Hello Mister_E

Many thanks for you reply....I lost much hair over this problem, but it is FIXED!

I'm so stupid...

Ok here goes...after getting a BIG BIG hammer ready for my computer...I try one more thing.

My wall plug (errr....americans call it wall wart?) you know what I am talking about, - so it was a switchmode 2A 12V. I put it on my scope and it was really noisy, the crystal was also drifiting quite a bit.
Soo.......I replaced the plug pack with a nice linear 500mA 12V and replaced the crystal with a nice stable 4Mhz and then viola...it works...ICD on serial port and MicroCode is super happy and back to 2m Serial Cable!

Hmmm...I had some 'other' hair loosing problems on my board before. Somehow I think it was caused by the switchmode supply. No more switchmode for me...:-)

I am surprised the PIC still runs really well, even with a switchmode, but looks like other stuff don't like it.

[mister_e]

That's a bit weird at the same time because it has this Voltage regulator in between. Maybe i'm missing something here, maybe it miss one capacitor or two here and there on the board to filter some high frequency noise coming from your Switching psu.. One thing i can say, is that i added a 10uF tantalum on each DIP socket too.

You could still use a AC psu, as this board have it's own diode bridge.
Oh well, at least it works