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wonbinbk - Remember.... Windoze, as in asleep all the time, is the poor excuse of an operating system MChip uses for MPLab
The windows USB drivers have problems letting go of some devices when you unplug them (maxtor external hdd in my case). You can try and stop the device (little green...
wonbinbk:
If I'm looking at the right schematic (they are all pretty much the same thing) L1 on the USB port is to filter the power for the board. See "Choke"
L2 is used for the DC step-up converter to supply higher voltages for MCLR on some IC's
If you really want to make the inductors, you...
acrobat - go to the URL h*t*t*p://www.national.com/pf/LM/LM2577.html
Oh, and I'm going to try if I can get both RJ11 and pin header ICD2 interface on one board
I found this little puppy:
h**p://www.national.com/pf/LM/LM2577.html
5 to 12 DC-Dc @800mA, see the PDF
It has a low component count, and probably has a more stable output at lower current.
If people can be difficult, they will be ;)
I'm in the ZA and the M-chip Freebees (samples) can sometimes take months to arrive. At the moment there is no stock available, whatsoever, on the 4550 anywhere in this country. Thay do have 2550 and 4455 in stock....
Nice work!
Being stuck with a proper PicStrart and not being able to program about half the PICs I want, and having to remove the ones I can for every change, a clone ICD2 sounds like heaven.
Is it possible to replace the 18F4550 with a 18F2550 (fewer pins) or a 18F4455 (12kbytes less program...
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