anchor.diff:  
   * Ground is important.  As a rule of thumb, connect at least 2 ground wires between the UDOO and your DUT
   
  -* Pay attention to pin levels.  The UDOO IO's are 3.3v.  If your device is not also 3.3v, the most reliable way to connect the IO's is by using a bi-directional (auto-direction sensing) level shifter.  This one works well and is easy to find: ---------------
  +* Pay attention to pin levels.  The UDOO IO's are 3.3v.  If your device is not also 3.3v, the most reliable and convenient way to connect the IO's is by using a bi-directional (auto-direction sensing) level shifter.  This one works well and is easy to find (available on Amazon Prime at the writing of this document): TXB0108
  +
  +* An alternative method for shifting a voltage down is to use a diode and pullup resistor.  The anode gets connected to the higher voltage device.  The cathode is connected to the lower voltage device.  A 10K pullup resistor is connected from the cathode to the supply voltage for the lower voltage device.  --- A word of advice: This method is quick and easy.  But, you get a slow rise time which makes it a terrible way of shifting the level of a clock signal (like TCLK for JTAG or SPICLK for SPI).
  +
  +------------------------------------------------------------------------------------------------------
   
   # How It Works
   
  
positive.code: 
  #### Staying Synchronized
  
  For efficiency vectors that are generated by your app are compressed and stored until the pattern generation is completed.  This means that when execution reaches a 'debugger' statement the previously generated patterns may not have been sent to the server yet.  There are a handful of ways to make this happen.
  
  * Use the tester.synchronize command from the debugger interface:
  
  
negative.code: * Add a link environment (./environment/link.rb).  See server setup section for more information:
  
  ~~~ruby
  # Note that the field for providing the computer name or IP address is a string
  OrigenLink::VectorBased.new('<ServerComputerName -- or IP_Address>', 12777)
  ~~~
  
  