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Re: pickit-3 clone
The question: Where's the ASSY_ID0, ASSY_ID1 connected to the GND? I thing is a risc to leave this pins flying.
Second thing. Isn't the saturation voltage of the ULN2003 too high i.e. for the voltage pump? Isn't the choke too small? 100uH compare to 680uH is pretty low.
The...
120 pin connector
Thanks a lot Jan Rune. My project to build the Explorer 16 is still in plans because of lack of time, but I ordered the samples of this conector. Will see if they can aprove my request :-)
Regards,
Krzykoz
Added after 11 minutes:
And you're right, this connector is...
programming 3v3 pic icd-2
One mistake in my preview sch. Of course PORTA4 in 4550 should be push down to the GND, and PORTA1 & PORTB7 (PGD) pull up to VUSB. The resistors on base of transistors should have values: R10, R11 = 1.2k, R12 = 390R...
Sorry!
24hj12gp202
Here is the schematic of my version ICD2, using the Zener diode and powering 74HC4066 from target. I add also DB9 and MAX202 to serial communication... Check it please...
Regards, krzykoz.
3.3v 5v translator 2 transistor npn
Ok, now I understand the purpose, thx Freddie Chopin!
Ps. What about Explorer 16?
Ps. Obronilem sie w zeszlym roku... "Generator przebiegow sinusoidalnych na pasmo akustyczne" Przetaktowany PIC18F4431@48MHz robil jako generator DDS (bez zewnetrznego...
icd2 for pic24fj
I had a problems with this switch, I think its depend on the manufacturer. The solution is: use the powering from ISP-VDD and switch voltage 3.3V (with zener like I show on picture) but using the HCT series is not nessesary, because if the power voltage will be 3V (from tgt...
usb clone
Ok thx, problem fixed, but I see another one. I don't know how is in practice, but look on the 74HC4066. In datasheet, this chip can be powered with max 10V, in this case (I gues) is powered with 5V. Ok but, the max switch voltage is Vcc (so 5V), in this case is (13V -...
usb icd2 poland
Hi everybody!
I have read all topic with great pleasure.
Is one question about circuit which was asked by togarha. Why the 74HC4066 is powered from ICSP VPP? This chips can't work with this voltages! What is the purpose of this switch?
I found one little (maby big) problem...
pictail plus connector
Hi everybody!
I'm looking for part number (type) of 120 pin PICtail PLUS edge connector which is mounted on Explorer 16 board.
Could anybody look on Explorer 16 board ane write me any numbers from it?
Have you ever made Explorer 16 board byself?
I thing ist a good idea...
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