OmniBoard KIT1: "hello world" (t01)

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last update: August 6, 2008

 

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This is the easiest way to start playing with the OmniBoard.

KIT1 is a dsPIC beginners project which shows how to get the DSP going at 40MIPS. The "hello world" example outputs some text to the RS232 port.

  • Assembled and programmed pcb.
  • Battery supply +3V5 ... +6V, integrated voltage regulator.
  • ON/OFF with single pushbutton.
  • Bootloader support.
  • Hardware is compatible with other omniboard projects and can be upgraded.

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  Free schematics, diagrams, software and source code downloads available.

KIT1 top view (boxed)

 

  Connections:  
  How to make it work?
  1. User a supply or battery between +3V5 ... +6V
  2. Build a RS232 level converter, te be placed between omniboard RS232-2 and your pc serial COM port: see howto here.
  3. Omniboard RS232-2 (X1 connector) connection pins:
    1. +3v3 (closest to T2 transistor "717")
    2. PIC TX
    3. GND
    4. PIC RX
  4. Use a free terminal program to view what to board sends out, for example use the built into TinyBootloader, used in previous projects. See screenshot below. RS232 @ 115200 bpS, 8N1, "type comm"
  5. You will need the same RS232 level converter, connected likewise, to be able to upload a new firmware with the bootloader.

 

6. In case you need to reprogram the dsPIC from scratch, then use the ICSP+ connector X3, connected to a hardware programmer, like the dsPIC USB programmer: WinPic800.

Omniboard ICSP+ (X3 connector) connection pins:

  1. !MCLR/VPP
  2. PGD (data)
  3. GND
  4. PGC (clock)
  5. +3v3
  6. leave open
  7. leave open
  8. leave open (closest to pcb corner)

 

 

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Images: (click images to view full resolution)

   

pcb top view pcb bottom view

Diagrams: (click images to view full resolution)
   
  pcb top diagram pcb bottom diagram  

Component Datasheets:

 

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