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Correct.
You can. But most leds nowadays are very efficient. I personally use 1K, and the led is bright enough to see, and I don't use more power than necessary. On my serial port ICD2 I used 1K resistors and it's bright enough to see clearly.
If you use SMD leds, you really have to lower the...
Usually double what will be used. So in this case, 25V should do the trick.
Caps connected to VDD (5V) can be as low as 10V, but 16V is more common.
Get low ESR caps if the regulator you're using requires it. Some do. :!:
Daemons
Have you tested this before saying it works? I see many post mods here that aren't sound and never tested. :!: I suspect RB6-7 from either chip will interfere with eachother. :| I urge you to test this out first.
If you ever modded an SMT PCB designs before, as I have you'd know it ain't easy...
Isin't that what I just said? :?
That is what I said... As for the connections, obviously you need to add the ICSP connectors, as NICK7's design incorporates. And NO, you don't need one ICSP connector but two. One for each chip!!! Many design variations with ICSP for both chips are in this...
I'm not sure I understand what the problem is here or maybe I don't understand your question, but you only need the 877 and 4550 ICSP connectors to program those chips with the bootloaders the very first time. You'll only need to do this once normally, so you do so before closing the case you'll...
The real values are 6k80, 4k70, 2k20. Those are standard 1% Values. :!: They are stock at various online distributers, namely Digikey. https://www.digikey.com/
5% resistors wont do, as it wont acuratly report VPP, Target VDD and MCLR.
And anyone who tells you those are not standard values...
I had a look at the code myself and also quoting from one of your previous post...
Is there a USB led? I found that code too, but I'd like to point out that btfss on the port pin with the led? Why? What is it testing that pin for if it's for USB status? It doesn't make sense. Also the 4550...
It's all explained inside the ICD2 User's Guide. Just download it from the Microchip Website.
Thats because MPlab adds things to the program to allow the use of the debugging module inside the chip. If you're not using the ICD2, these additions need to be removed by reprogramming the chip as...
It's a great tool to design with. The debugger is very helpful, but serial is WAY too slow. Thats why I'm making the USB one.
Thats why the design is using a Mosfet to switch the power. Microchip already thought of that. Plus you can always add your own fuse on the ICD2 output itself (smaller...
Looking at your design Potyo, or PICS'... my question is do I need the 4550 reset bouton at all? What is it needed for exactly?
Can I just assemble the 2K2 Pullup for MCLR instead?
Also, is it true that PGM isin't used at all? I find this odd since it is on the original ICD2, is it not?
Daemons
Glad to hear it. I got scared by your previous post, as I'm about to make pretty much the same design as yours, but with much of the original "ICD2 Clone V1.5" that was using the cypress USB chip.
The only big difference from your schematic is I'm leaving out the external PS, as I don't need to...
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