track <name> number -- The track command tells the program to try to achieve this condition.
                  Note:  It is impossible 
max <name> number -- Set a maximum or minimum boundary (used for current limiting,
                                                         or voltage limiting)
cal <name> number -- The cal command is used for calibration.  It should only be used when you have truth data available (external voltmeter and ammeter)  The program can then adjust it's coefficients to make the reading more accurate.

Note: There is only current measurement for ihigh.  Calibrating ilow
      will simply calibrates the"expected efficiency" because it cannot be measured,
      and the following can be used to find it:

if  ihigh > 0
   ilow = efficiency * ihigh * vlow / vhigh
else
   ilow = efficiency * -ihigh * vhigh / vlow

examples of name include:
    
  vlow -- low voltage
  vhigh -- high voltage
  ilow -- low current
  ihigh -- high current
  temp -- temperature Note: this value can only be calibrated
                             (you can set it with a thermal chamber though)

Examples:
track vlow 3.5  (try to run constant voltage buck regulator and mainting vlow at 3.5v
track ilow


peak power tracker setup:
<pre>
  max vhigh 4.1  (max voltage for lithium ion battery)
  track ihigh 10   (my solar panels do 3 amps at best,
		    so we will never get to 10 amps, but try our best
		    to maximize current.)
</pre>

boost regulator outputting 5v:
<pre>
  track vhigh 5
</pre>