• AVR Freaks

Hot!Is it possible to connect external switches to dsPIC starter kit DM330011?

Author
lazarojhr16
New Member
  • Total Posts : 8
  • Reward points : 0
  • Joined: 2019/03/24 16:53:05
  • Location: 0
  • Status: offline
2020/03/27 09:47:50 (permalink)
0

Is it possible to connect external switches to dsPIC starter kit DM330011?

I just got the starter kit and I'm messing around with it. I read the user guide pdf but I didn't see anything about external components. There are some holes labeled J2, J3, and J4 where it looks like some header pins could be soldered to it but the user guide doesn't mention anything about this. Is it possible to connect external components such as switches or no? Thank you.
#1
NKurzman
A Guy on the Net
  • Total Posts : 18655
  • Reward points : 0
  • Joined: 2008/01/16 19:33:48
  • Location: 0
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/27 10:17:04 (permalink)
#2
du00000001
Just Some Member
  • Total Posts : 3665
  • Reward points : 0
  • Joined: 2016/05/03 13:52:42
  • Location: Germany
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/27 12:56:44 (permalink)
0
J2-4 are not mentioned in the docs, nor shown in the schematics.
J2 looks like the ICSP connector required for factory programming of the PIC18, so I would leave this one untouched.
I didn't bother to analyze J3 and J4 in detail. As the traces are visible, put a bit of work into it and check where the traces go to. This can be expected from an EE student.

PEBKAC / EBKAC / POBCAK / PICNIC (eventually see en.wikipedia.org)
#3
NKurzman
A Guy on the Net
  • Total Posts : 18655
  • Reward points : 0
  • Joined: 2008/01/16 19:33:48
  • Location: 0
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/27 13:27:49 (permalink)
0
It looks like the schematic is missing a page or two.
J3, or J4 could be it.
#4
lazarojhr16
New Member
  • Total Posts : 8
  • Reward points : 0
  • Joined: 2019/03/24 16:53:05
  • Location: 0
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/27 14:08:43 (permalink)
0
Ok I'll trace them and write back when I figure where they go. Thank you.
#5
NKurzman
A Guy on the Net
  • Total Posts : 18655
  • Reward points : 0
  • Joined: 2008/01/16 19:33:48
  • Location: 0
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/27 14:13:23 (permalink)
0
It Looks Like there is spare pins on Port D.  (maybe)  if that is where they go.
 
#6
du00000001
Just Some Member
  • Total Posts : 3665
  • Reward points : 0
  • Joined: 2016/05/03 13:52:42
  • Location: Germany
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/27 14:31:05 (permalink)
0
Re "missing pages":
I don't think there are schematics pages missing: these jumpers are mentioned nowhere. Looks like they were left out intentionally. Might be not only J2 is a programming connector: while I don't expect to find more programming connectors, these might serve as EOL test connectors. When it comes to EOL testing, such holes are better targets for pogo pins than flat SMT pads.

PEBKAC / EBKAC / POBCAK / PICNIC (eventually see en.wikipedia.org)
#7
NKurzman
A Guy on the Net
  • Total Posts : 18655
  • Reward points : 0
  • Joined: 2008/01/16 19:33:48
  • Location: 0
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/27 15:25:37 (permalink)
0
The labeling of the Port D Pins suggest that they were meant to be spares.
But without a board to ohm out only the OP can say.
#8
mpgmike
Super Member
  • Total Posts : 418
  • Reward points : 0
  • Joined: 2014/01/23 17:27:06
  • Location: NJ
  • Status: offline
Re: Is it possible to connect external switches to dsPIC starter kit DM330011? 2020/03/28 07:36:20 (permalink)
0
As for missing pages, often Jx jumper functions are listed in small print on the back side of the board.

I don't need the world to know my name, but I want to live a life so all my great-grandchildren proudly remember me.
#9
Jump to:
© 2020 APG vNext Commercial Version 4.5