I wasn't going to touch this one, but since I just got about fifty postings from Mr Mail12706 I think I'll have a go at it... > From: "mail12706@pop.net" > > I have not programmed microcontrollers since college, I am in the patent > field, and I have just started to learn the RISC operations on the PIC. > I wrote this letter to Scott Dattallo, however, I can open it up to all > of you because it makes less harm for me if I put it out here on the big > internet. I haven't heard of Mr Dattallo, but his close relative Scott 'Sinewave' Dattalo, on this very PICLIST, certainly has those arcane transforms at his fingertips. Although nowhere near his calibre, I might be able to offer some assistance. > > Mr. Dattallo > > I heard you were a pro at PIC programming and wanted to get some > guidance from you. > > I recently found out that a scientist discovered how to "split" water > in 1987 and got a patent on it. Is that 2H2O -> 2H2 + O2 or was that the nuclear one which went H2O -> H.1/2O + H.1/2O = 2HBe? (Be (element #4) = 1/2 O (element #8)). Danger! Danger! Beryllium (oxide) is a toxic substance! Do not cut open or incinerate. > I tested it and let the gas into my > engine through the air vacuum hose and I was Mad Max for quite some > time. Anyway, the special gas burns with an atomic flame and has > overunity properties in itself (nuclear heat). Two overunity processes > (cold fusion and > sonoluminescence are suspected)! I would advise against this because it tends to detonate (ping) really badly. Also, the large neutron flux tends to weaken and swell all the ferrous material in the area, which is a problem if you've got one of those old cast-iron donks. The tritium levels in the exhaust are also above the level allowed by the state of California (and just about everywhere else as well). However, if you really want to risk it, read on... > Ok, the problem, people want to > replicate the > frequencies and experiments but I had spent several weeks designing a > frequency > generator that had several timing and counting chips, which worked fine, > but it was clumsy and large. > > Bingo, here comes the PIC16C84. Well, I > spent so much time on the fuel cell and the catalysts (both of which are > inexpensive and not hard to get) that I became burned out for learning I hope you're not burned out from radiation sickness - better see a doctor. > the risc code etc. So, here you come. These vertical counters sounded I was under the distinct impression that Microchip had only implemented horizontal counters in the '84. Close inspection of the 16C74 datasheet, however, indicates that the horizontal counters experience a phase change at -50 degrees C and turn into vertical counters. The datasheet specifically excludes conditions of high electron neutrino flux from the guarantee of phase change, which may be a problem for you. > like what I need, but I may not need them. Ok I need 3 seconds on and 3 > seconds off, with > 63.625khz from one pin, one half of that from the other pin=1/2f, 1/4f > on the next pin and 1/8 f on the next, so I can sum them up with four > resistors to a single output (to the driving transistors). This to me > means that I don't need a vertical counter yet, but just to increment at > f from the first port B, MSB a 0 to 15 nonterminating count that is four > bits in > resolution. Remember, this has got to be done for > three seconds and then stop for 3 and then continued. So can I use the > output from the WDT to delay for 3? No, the WDT is not an accurate timer. Well, that's what Microchip want you to _think_. In fact, it is possible to trim it almost to rubidium clock standards by attaching a miniature Tesla coil to pin RA4 and feeding back the RF output via a molybdenum waveguide to the die surface. This pulls in the WDT to a submultiple of the external clock frequency. > > The next thing I wanted to do was get a single pin and another pin as > complement to generate an adjustable 100hz-5khz output to drive some > more transistors (no 3 second rule). Can all this be done on a PIC, and > how would you suggest (or could you refer me to someone? It is clear I > could use a pushbutton switch on one input pin for adjusting the > frequency up and one for adjusting the frequency down, which would > involve two bounceless switch routines. Depends how stable you want the output. I would be well-nigh impossible to generate really stable 63.625Kz and another (arbitrary) frequency at the same time. You _could_ if you chose the other frequency to be a subharmonic of the 63.625KHz. For example, the planet Jupiter is a well known example of an over-unity radiator. If you take the resonance frequency of Jupiter with respect to Saturn, divide that by pi, and add the number you first thought of, it always comes out to 13. Hence make the upper bound of the other frequency 63.625KHz/13 = 4894.23Hz. At the lower end, an instructive example is the number of free-energy and perpetual motion patents that the multinational oil companies have bought up and hidden away forever: currently 629. Thus the lower frequency is 63.625KHz/629 = 101.15Hz. > > > So far, we are talking about 4 pins summed up into one output, 2 more > pins as output, and two input pins to two pushbutton switches. > > If I could reduce my circuit to one PIC chip, that would free my hands > to make a presentation on the MHD electolysis cell, publicly, so that > everyone could reproduce this. > MHD as in magneto-hydrodynamics? I thought that was a bit passe -- everyone's into room-temp superconducting hall effect with double overhead tesla coils now. Anyhow, good luck with your project. Regards, SJH Canberra, Australia