baudrate=115200
VARIABLES
v_a=Phase A voltage.
v_b=Phase B voltage.
i_a=Phase A current.
i_b=Phase B current.
u_a=Phase A voltage, v_bus corrected.
ir_a=Phase A IR voltage drop.
l_didt=Phase A L di/dt voltage drop.
e_a=Phase A Back EMF.
i_d=D-Axis stator current.
i_q=Q-Axis stator current.
e_d=D-Axis Back EMF voltage.
v_bus=DC bus voltage. 
speed=Rotor speed.
theta=Rotor angle 0 to 255 equals 0 to 360 Degrees.
osc_error=Oscillator test error, 128 is zero point.
counter=Counts up and down to show data comming in.
EEPROM
v_bus_min=Minimum DC input voltage for startup.
osc_cal_adj=Oscillator calibration value adjustment 0 to 64 centered on 32, 0 equals -32, 64 equals +32, all values above 64 use factory cal.
data_watch=Location of variable to watch on Variable plot window.
mode=Operation mode, 1 is open loop (voltage mode), 2 is current mode, 3 is speed control mode.
input_cmd=Immediate command input from 0 to 255, mode determines whether it is voltage, current, or speed.
s_reg_rate=Speed regulator update rate, number of 128us loop updates for a speed update.
s_reg_scaling=Speed regulator scaling.
s_error_limit=Speed regulator error limit (clamp).
s_k_scaling=Speed regulator scaling for k_p and k_i gains.
s_kp=Speed regulator proportional gain.
s_ki=Speed regulator integral gain.
i_limit=Current limit.
i_reg_scaling=Current regulator scaling.
i_error_limit=Current regulator error limit (clamp).
i_k_scaling=Current regulator scaling for k_p and k_i gains.
i_kp=Current regulator proportional gain.
i_ki=Current regulator integral gain.
v_limit=Limit on v_d and v_q commands.
speed_scale=Speed scaling, determines frequency scaling of sinewave for speed_min to speed_max.
speed_min=Minumum frequency of sinewave for Back EMF PLL.
speed_max=Maximumm frequency of sinewave for Back EMF PLLp.
p_reg_scaling=Back EMF PLL regulator scaling.
p_error_limit=Back EMF PLL regulator error limit (clamp). 	
p_k_scaling=Back EMF PLL regulator scaling for k_p and k_i gains.
p_kp=Back EMF PLL regulator proportional gain.
p_ki=Back EMF PLL regulator integral gain.
p_gravity=Back EMF PLL regulator offset applied to Back EMF PLL phase detector to cause frequency to fall (motor restart after a stall condition).
u_scaling=Scaling for phase voltage calculation.
r_scaling=Scaling for phase IR drop calculation.
r_phase=Phase resistance value.
l_scaling=Scaling for phase L di/dt drop calculation.
l_phase=Phase inductance value.
END