Voodoo Main Discussion

[Qiaozhi]

No, i was thinking only to use this for flashing the hex code into mcu.
Later on to take out mcu from it and put in on detector pcb.
I was hoping that 18F45K22 and 18F4520 are compatible.
MikroE is domestic company. But is hard to get anything free from them, except the mikroBootloader.
I just try it, to remind myself, since i haven't been using this for long time.
With mikroBootloader seems that i can flash any hex into chip.
I am looking over the net for some free compiler to experiment further with this board and see what else i can do with it.
So you think that 18F45K22 and 18F4520 are not fully compatible?

The Voodoo PCB has an ICSP connector so that you can flash the PIC directly without having to remove it. You just need a PICKit programmer. I used a PICKit 4, but 2 and 3 versions will also work.

The 18F4520 and 18F45K22 are (I believe) pin compatible, but the hex code will not work on the 18F45K22 without recompiling. There may be other differences as well, such as register configurations. Without comparing the datasheets I cannot say for certain.

[6666]

Even if you order the book directly from amazon.com.au it stills ships from the U.S.A.?
Does Amazon Australia not have the ability to print-on-demand?

We dont know much about Amazon Australia, they are hard to deal with, who knows where our books come from, my book still says ordered and delivery date of late December indicates its coming from USA.

[Qiaozhi]

George read this:
https://www.microchip.com/forums/m507358.aspx

Tell me if you can apply these changes into your setup and compile the same code for 18F45K22, since seems those are practically the same chips.
That's how you will also provide more options and wider choice of mcu, for your project.

OK- I'll trawl through the datasheets later to understand the differences. You might have to be the test subject though, as I don't have an 18F45K22.

[Orbit]

My personal opinion that this is a waste of time nothing will be avant-garde!We say how much money and so much music!Based on conductivity never there will be no discrimination what you expect !it is only possible good discrimination to do on the basis of one patent from 2020 years and the name is a hybrid resonant pulse detector..

[Qiaozhi]

My personal opinion that this is a waste of time nothing will be avant-garde!We say how much money and so much music!Based on conductivity never there will be no discrimination what you expect !it is only possible good discrimination to do on the basis of one patent from 2020 years and the name is a hybrid resonant pulse detector..

I'm not sure what you're trying to say.
If you think the Voodoo project is based on target conductivity then you are mistaken.

[ivconic]

OK- I'll trawl through the datasheets later to understand the differences. You might have to be the test subject though, as I don't have an 18F45K22.

Deal!

[Orbit]

I'm not sure what you're trying to say.
If you think the Voodoo project is based on target conductivity then you are mistaken.

I haven't read from the beginning ,what is the basis for discrimination ? Very good project and for free it gives me a lot of doubt !
I figured out what this was !

[waltr]

Thanks at $10.00 a chip I just require the correct one ,
Thanks

Yes, the older PICs are a good bit more expensive than many of the newer ones.
I have been using the newest 'Q' PICs which are faster, lots more memory and periphials and only cost $1.24.

That board contains an 18F45K22. You could either replace the PIC with an 18F4520, or recompile the source code.
Note that Voodoo uses a 20MHz crystal, whereas the "Ready for PIC" board is wired for 8MHz.
Also, you would not be able to fit the rest of the circuitry into the proto area.

The Voodoo PCB has an ICSP connector so that you can flash the PIC directly without having to remove it. You just need a PICKit programmer. I used a PICKit 4, but 2 and 3 versions will also work.

The 18F4520 and 18F45K22 are (I believe) pin compatible, but the hex code will not work on the 18F45K22 without recompiling. There may be other differences as well, such as register configurations. Without comparing the datasheets I cannot say for certain.

OK- I'll trawl through the datasheets later to understand the differences. You might have to be the test subject though, as I don't have an 18F45K22.

These two PICs are very compatible (pin for pin the same) but there will be slight code differences.
Once the Source code is available I can take a look and port to a newer PIC.

[eclipse]

The code is done with MikroE and not with the XC32/MplabX so porting will be a little more involving ? Maybe a stripping down LCD support and stuff would help I've ordered the book today I can't wait to see more about the project and see what's all about. I'm wondering about coils, the firmware and circuit it's all very exciting thanks for this opportunity George.

[MartyJ1963]

Hi all,,A very happy day today!,,My book arrived! And I only ordered it about 3 days ago! Really pleased. Thanks again George, Regards, Marty.

[MartyJ1963]

I just copy-typed myself a BOM list from the book so now I can get on with collecting components. I have most parts already to hand and only need to order the mosfets, microcontroller and of course,,,,,the necessary PCB from Andy once he recieves the boards. @Qiaozhi - Can a DIY Coil be built for the Voodoo? If so, what are the inductances etc of the Troy 9" concentric please? I know the answers are probably there in the book but I haven't yet started to read it,,,till later tonight!,,my partner says not until my chores are done!,,Lol. Thanks George, Regards, Marty.

[bernte_one]

good news - gerber are ok for production of pcb

but after looking pcb design (as total noob myself i thing) i would do many changes
biiger copper tracks, especially at the power consuming parts, other size of soldering pads according to type of soldered parts
i would cut it also into two pcb connected with pcb header, or single soldered pins

[MartyJ1963]

@Bernte one,,,Which PCB Company did you order from? 10.60 euro is a good price! Regards, Marty.

[Qiaozhi]

Can a DIY Coil be built for the Voodoo? If so, what are the inductances etc of the Troy 9" concentric please? I know the answers are probably there in the book but I haven't yet started to read it,,,till later tonight!,,my partner says not until my chores are done!,,Lol. Thanks George, Regards, Marty.

Yes, you can make your own coil. All your questions are answered in Chapter 6.

[Qiaozhi]

The code is done with MikroE and not with the XC32/MplabX so porting will be a little more involving ? Maybe a stripping down LCD support and stuff would help I've ordered the book today I can't wait to see more about the project and see what's all about. I'm wondering about coils, the firmware and circuit it's all very exciting thanks for this opportunity George.

I own a copy of Mikroelektronika's mikroC PRO compiler which is obviously why I used that to develop the software, but perhaps someone can port it to the MPLAB XC compiler. I would do it myself but am currently tied up with other things.