AnsweredHot!I have 4 broken PICkit 3, should I throw them?

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eagle1
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2019/02/26 05:12:29 (permalink)
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I have 4 broken PICkit 3, should I throw them?

Hello,
 
Last semester I was working on basic microcontrollers course which we used to connect the PIC with the PICkit 3 on a breadboard. But due to some faulty connections to the power and ground I used to loose PIC chips along with the PICkit 3 as well.
 
I threw the PIC chips because they are not repairable, but what to do with the PICkit3. I have 4, tested them again this afternoon and they don't work.
 
What should I do? Should threw them ? or there's a possible fix or something.
 

 
Thanks,
#1
JPortici
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 05:16:28 (permalink)
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Open a ticket. They usually replace/upgrate old/broken programmers
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qhb
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 05:22:24 (permalink) ☄ Helpfulby eagle1 2019/02/26 12:49:51
5 (4)
Except in this case, all four of them are fake/clone devices.
Real ones have an "M" (not "W") logo with white text on a red circle up near the USB connector.
 
#3
qhb
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 05:27:05 (permalink) ☄ Helpfulby eagle1 2019/02/26 12:49:56
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e.g.
 
#4
hexreader
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 05:28:06 (permalink) ☄ Helpfulby eagle1 2019/02/26 12:50:06
5 (1)
I suspect that Microchip will not replace cheap knock-offs.
 
EDIT:   qhb got there first..

Experienced Hobbyist
#5
JPortici
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 05:28:55 (permalink)
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ah! i should have paid more attention to the photo.
 
Well, op: if you bought genuine (can you even do that in saudi arabia? I honestly don't know) you would have got a new one for free :(
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vloki
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 06:15:31 (permalink) ☄ Helpfulby eagle1 2019/02/26 12:50:42
5 (1)
eagle1
What should I do? Should threw them ? or there's a possible fix or something.

Usually they are relatively easy to fix. Did that with 3 or 4 and all had
one or more defective 74LVC1T45 Transceivers at the signal lines.
 
If the communication with the PICkit3 works, this can be checked
easily with the logic tool included in PK3 standalone software.

Uffbasse !
#7
Howard Long
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 07:57:30 (permalink)
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I'm not the most careful, but I've yet to brick a kosher Microchip programmer or debugger, starting from the PICStart Plus 20 years or so ago, and I pretty much use them daily. Before that, I rolled my own programmers: commercial programmers were historically very expensive.
 
While they were not short of their own hardware problems I've yet to actually brick any of them (firmly touches wood).
 
* RealICE had an aftersales technical bulletin correction necessitating the removal of a MOSFET;
* RealICE seems to sometimes have an HCF instruction, it stops responding and becomes extremely hot;
* PICStart plus had a hardware upgrade for newer devices;
* PICkit 4 had an intermittently shorting USB receptacle.
 
That doesn't mean they won't blow up any targets, for example the PICkit 4 has a feature that can destroy some older PICs that need 12V Vpp to program.
#8
Sudheer Herle
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 07:59:57 (permalink) ☄ Helpfulby eagle1 2019/02/26 12:51:52
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Throw them. Buy pickit4 ;-)
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crosland
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 08:12:53 (permalink)
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eagle1
What should I do? 



Hang your head in shame.
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Howard Long
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 09:30:16 (permalink) ☄ Helpfulby eagle1 2019/02/26 12:52:18
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Sudheer Herle
Throw them. Buy pickit4 ;-)



Why? It only supports a subset of devices, and has one or two nasty features. I'd rather have a reliable and dependable device than an unreliable one that runs fast some of the time.
#11
eagle1
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 13:27:54 (permalink)
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Jack_M
ah! i should have paid more attention to the photo.
 
Well, op: if you bought genuine (can you even do that in saudi arabia? I honestly don't know) you would have got a new one for free :(


We have some local shops and online shops that sell some electronics and microcontroller parts but not everything, for example, I don't guarantee that there's a shop that sell a genuine PICkit3. And normally I buy my stuff from Aliexpress.
 
But these parts are for the college, and of course they are not genuine. So I'm just figuring out if I can do something; like, checking if there's a voltage regulator or certain chip on the PICkit3 that is broken and I can replace it.
 
 
 
vloki
Usually they are relatively easy to fix. Did that with 3 or 4 and all had
one or more defective 74LVC1T45 Transceivers at the signal lines.
 
If the communication with the PICkit3 works, this can be checked
easily with the logic tool included in PK3 standalone software.


I don't know about the 74LVC1T45, I checked the PICkit3 board this afternoon, checked the PCB, found some chips, there's a PIC24, a LM399 ... etc. But didn't know how to check the faulty part, I'm really interested in trying to fix it as it would be a good thing which has different benefits; like, trying some SMD desoldering and soldering, checking voltages and signals on a small PCB.
 

crosland
Hang your head in shame.

Why?



#12
crosland
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 13:34:43 (permalink)
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eagle1
crosland
Hang your head in shame.

Why?

 
For buying fakes.
#13
Mysil
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 14:11:34 (permalink)
5 (1)
Hi,
The signal voltage level translators are small 6 pin devices, possibly in 6-pin SOT package,
one for each of the 3 signal pins, between PIC24 SPI pins, and ICSP connector.
Or maybe they are not present at all in the clone devices.
 
In PICkit 3, there are also some 50 mA current limiting PTC devices, and 5 V Zeners in the signal path.
 
In PICkit 3.10 Programming Application software package in Microchip Archive webpage,
there is also User's Guide, with schematic diagram showing what hardware should be inside.
 
    Mysil
post edited by Mysil - 2019/02/26 14:22:48
#14
Bob White
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 16:50:40 (permalink) ☄ Helpfulby mdorian 2019/02/27 02:27:34
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crosland
eagle1
crosland
Hang your head in shame.

Why?

 
For buying fakes.




Is "fake" really the right term?
 
Isn't "clone" is more appropriate?  Didn't Microchip make all the design information (schematics, parts lists, layouts, code) freely available for people to make their own?
post edited by Bob White - 2019/02/26 16:51:45
#15
qhb
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/26 20:00:26 (permalink) ☄ Helpfulby eagle1 2019/02/27 05:07:51
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Indeed, although a lot of the clones left out various protection devices to save money.
 
#16
vloki
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/27 01:29:50 (permalink)
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qhbIndeed, although a lot of the clones left out various protection devices to save money.



We have about 100 genuine PICkit3 here at the university, but I also bought some clones to test them and give recommendation to the students whether to buy them or not.
 
All of the clones where really cloned. Ok, some parts a little different, but all there.
 
@eagle1: Have a look at the original schematic in the PICkit3 user guide!

Uffbasse !
#17
eagle1
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/27 05:24:30 (permalink)
5 (1)
crosland 
For buying fakes.

You're right !! can't argue with that :)
 
But the clones are cheaper of course .. even the college bought the clones, I bought the clone in the first place for myself.
 
Even the Arduino boards package came recently for the college are also clones. It's clear that buying clones is just to cut like half of the overall budget.
 
I have different clones of the Arduino and they work well. But I don't have deve boards for the PIC chips, I buy them only chips and put them on the breadboard.
 
I wish there're famous dev boards like the Arduino uno, why there isn't? Now microchip is owning Atmel products. Why can't the mother company produce even more cool boards like the Arduinos?
 
robertvwhite
Is "fake" really the right term?
 
Isn't "clone" is more appropriate?  Didn't Microchip make all the design information (schematics, parts lists, layouts, code) freely available for people to make their own?

Yep, that's the trend today. You can pretty much find a lot of things cloned :) I myself may get cloned one day lol ..
 
qhb
Indeed, although a lot of the clones left out various protection devices to save money.


Yeah .. actually I just now took a picture of the two clones but I don't know which protection devices that aren't found on cloned PCBs.
 

 
I even don't have the right tools to fix anything this time, I can get a hot air gun from the college but if any of the SMDs is broken then of course I just have to order them from China.
#18
NKurzman
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/27 08:18:03 (permalink)
4 (1)
Arduino Is not an Atmel product. It just uses an Atmel CPU.
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eagle1
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Re: I have 4 broken PICkit 3, should I throw them? 2019/02/27 23:57:49 (permalink)
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NKurzman
Arduino Is not an Atmel product. It just uses an Atmel CPU.

Yes, I know that. Like, mikroelektronika products they use PIC chips and so on ..
#20
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