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When Silverdog ships out does the status change from payment accepted to shipped ?
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@The Mandarin you said you keep your processor in the board and use the icsp to program your chips are you using the programmers 5 volts or the boards I would assume board powered off and using the programmers 5 volts ? I am Ironman ! The reason I ask is I have a CH341A it has a icsp output but it runs on 3.3 volts unless you mod the board but I have a icsp cable that has single pins so I can pin what pins I want and was going to see if I could get it work with a driver and program similar for 40 pin instead of 8 pinComment
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Never mind I just broke down and bought the pickit3 instead of even messing with itComment
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Thanks Matt i know ive watched all his videos a few times i saw that the programmer i have has a icsp socket on it and wanted to use it if i could its runs on 3.3 volts unless you mod it for 5 volts and they have a open source program for it that lets you program hundreds of more chips with it after the mod but i dont need to hack the chip and take a chance on corrupting it ill need the pickit3 anyway for future upgrades or repairs or to just be able to copy eproms so i just bought itComment
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I thought some where in the video he mentions some thing about 5 voltsComment
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Yes the microprocessor runs at i think the sheet said 4.1 to 5.0 volts when he tried 5.0 volts it wouldn't program so he had to use 4.7 volts thats why i couldn't use the one i had it only programs 3.3 volt chips without modifying it and using a different program for it because the 5 volt option doesn't even show up its a work around to program chips for autoComment
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The chip programs fine with the pickit set to 5 voltsComment
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Not according to Surfdetectors video it didntComment
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Originally posted by SilverSurfer17 View Post
Never had a problem pickit 3 set to 5v and MPLAB IDE V 8.76, done loads of chipsComment
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I am using MPLAB X IPE v5.45Originally posted by 6666 View Post
I think the fact that I was unable to utilize the normal 5v is actually relevant, The important nugget of information that I was trying to impart is that if you happen to encounter that error then you do have other options in changing the voltage, which I think is important to know.Comment
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It is important because someone who has never flashed one may not know you can even do that same as the info you gave on the LCD adjustment that could of been them thinking they had a bad chip and even the same exact part number may not all program the same kinda getting back to what i said about them in the first placeComment
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I've had the same issue with both PICkit2 and PICkit3 on some designs. Not sure why this happens, but it may be something to do with loading from the rest of the circuit. Not had the same thing happen with PICkit4 so far.Originally posted by surfdetector View Post
If you Google the problem, you'll see lots of other people with similar issues. Usually you simply have to lower the voltage to get it to work.Comment
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Originally posted by Qiaozhi View Post
In all my time of chip burning this is the only time I can recall even hearing about the pickit 5 v problem, I use both PICkit2 and PICkit3, but I always remove the chip from the pcb and never had a problem, just set to 5 v and burn.Comment
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Microchip SNAP:
I have not fired up MPLABX to check the supported devices list but Microchip has a $26USD programming/debugging device called SNAP (which I realize wouldn't be supported for the MPLAB 8.xx holdouts with whom I sympathize). Again one would have to check the supported devices list in the release notes in MPLABX.
uController fclk:
I have been using microprocessors and microcontrollers since 1978 and I still consistently underestimate what can be accomplished at some given clock frequency. ITMD contains a discussion from which the authors derive the basic constraints involved in swinging a detector through an angle of x degrees y times per second. From this one can estimate the number of instructions that can be executed per portion of the sweep. Given this, the designer can trade off battery consumption CV^2F (C is constant and specific to each uController device and in this case V has been set for us at 5V) against desired ucontroller performance.
Experimenting with metal detectors in general:
I am a complete beginner with metal detectors and hope to experiment with them when I leave full-time employment this coming May. I would say that even a (deceptively) simple BFO metal detector takes TIME to characterize. Patience and diligence/rigor must rule the experimental process in order to redeem the time spent into meaningful knowledge. Let's help Qiaohzi, 6666, surfdetector, Mdtoday, silverdog, lamoiz, godigit1, MartyJ1963, Carl, bernte_one, and the other experienced members help us. Once we have a robust base reference platform, variants can abound as Qiaohzi suggested. For those interested in tweaking ucontrollers, the member named moodz has many projects extant in this forum to explore.
PS:
My wife got me a Garrett Ace 400 and carrot setup for Christmas so I have a commercial VLF detector on which to gain experience and use as a reference. I have The Voodoo Project on order and I have IMTD and The Complete VLF-TR Metal Detecting Handbook and a friend with an AT Pro who's getting me started/hooked. I'll probably build a BFO (I know ...), a Raptor, and a PI-5 first and see what I can learn. Some day I'll catch up to Voodoo ....
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