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Pi Pico debug wire help

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(@videogame95)
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Joined: 3 years ago
Posts: 65
Topic starter  

Hi could not fined post for this wire problem help so put it here.

Does any one know what the wire size and for the debug connection is and i think its a jst  connecter but its very small any help please were to buy the debug lead . I have one of Pi Pico just stopped work no connation.   

help please


   
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(@davee)
Member
Joined: 3 years ago
Posts: 1798
 

Hi @videogame95,

I haven't got one, so this is just an observation, not a recommendation. Raspberry Pi seem to have a debug probe. I am attaching details from a UK supplier. Hopefully it helps you to track down a supplier nearer you, if you are interested.

https://thepihut.com/products/raspberry-pi-debug-probe?variant=42380171870403&currency=GBP&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&gad_source=1

image

I would also try Googling for articles about the product, before ordering.

-------

Note the Pico has two options when it boots, and sometimes it picks the wrong one. Sorry, I haven't looked into this properly, so I am not in a position to provide you with am answer. I suggest you look for articles on 'bootsel', to find out how to check and change this.

Good luck and best wishes, Dave


   
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Ron
 Ron
(@zander)
Father of a miniature Wookie
Joined: 4 years ago
Posts: 7439
 

@videogame95 You really need to provide a better explanation of what is happening. Something along the line of.

1. I expected the PICO to do X

2. But it does Y.

ALSO, if you are running a sketch, include it in <> plus if you are using someone else's wiring diagram include a link to it.

Wire size technically is a function of current, voltage, temperature, clas of covering and a few other minor things, but if you are talking about a PICO class device that operates in the few milli-amps, any wire from 30AWG to 20AWG is good.

First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.


   
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(@videogame95)
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Joined: 3 years ago
Posts: 65
Topic starter  

@zander HI my Pi Pico has a white very small connection for 3 wires to debug I need the connection size for  connection see picture.

 

image

  My Pi Pico has a white bloke on it the picture is for debugging any help with connector size.


   
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(@videogame95)
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Joined: 3 years ago
Posts: 65
Topic starter  
image
image

 


   
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Ron
 Ron
(@zander)
Father of a miniature Wookie
Joined: 4 years ago
Posts: 7439
 

@videogame95 I have dozens, maybe even 100's of those kind of connectors. They are jST but the problem is what size. You could just use dupont wires, they come in M-M, M-F, and F-F so one of the F would connect to the PicoProbe the other either M or F depending on your header arrangement.

If you do not want to go the dupont route, see if you can match up from the following page https://www.mattmillman.com/info/crimpconnectors/common-jst-connector-types/

First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.


   
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(@davee)
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Joined: 3 years ago
Posts: 1798
 

Hi @videogame95,

 If you look at the documentation on the web for the Pico debug board that I mentioned previously, perhaps you will find the answer to your question on plug sizes?

Start with :

https://www.raspberrypi.com/documentation/microcontrollers/debug-probe.html

image

plus the same page includes a second reference ...

image

 which goes to https://datasheets.raspberrypi.com/debug/debug-connector-specification.pdf

-----

Good luck, Dave


   
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(@videogame95)
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Joined: 3 years ago
Posts: 65
Topic starter  

@davee thanks dave


   
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Ron
 Ron
(@zander)
Father of a miniature Wookie
Joined: 4 years ago
Posts: 7439
 

@davee Good find Dave, those little connectors are a nightmare. I think I have at least a dozen and still don't have the right one sometimes.

First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.


   
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