DocID029822 Rev 1
5/23
UM2119
Graphical User Interface description
21
signals. Before sending a PWM configuration, the selected Frequency must be
confirmed by pushing the “
SET
” button.
6.
ENABLE SETUP – BST_DIS SETUP & FS_FLAG STATUS:
this frame is used is to
configure the EN1, EN2 and BST_DIS pins of the L9907 and to read the FS_FLAG
status.
7.
ADC READ
: this section displays the value of the Ib1 and Ib2 pins (ADC inputs).
8.
MOTOR CONTROL
: this menu is used to start a BLDC Motor Control based on Closed
Loop and by using 6-Steps Algorithm technique, to setup some parameters and to view
some useful waveforms:
a)
Motor Parameters
: through this menu it is possible to setup some parameters of
the BLDC Motor, such as “Polar Couples”, minimum and maximum rotation speed.
b)
Closed Loop Tuning
: through this menu it is possible to setup the PI parameters
for Closed Loop and Kp and Ki values.
c)
Graphics Display
: with this button it is possible to select a graphic between
Speed, Error, Duty, ADC IB1 and ADC IB2.
d)
Speed Ref
.: by using this cursor it is possible to set the target BLDC motor speed.
e)
Single Read
: this button allows to read the instantaneous speed value.
f)
Duty %
: it shows the value of the current Duty Cycle.
g)
Graph ON/OFF
: the button allows to turn ON and OFF the Graph window.
9.
Automatic Reset
: through this two buttons it is possible to automatically reset the
device at Start-up for Vcc=3,3 V and Vcc=5 V. Pressing the button “
Automatic Reset
3.3 V
”, the procedure described at Par. 3 point A will be automatically performed.
Pressing the button “
Automatic Reset 5 V
”, the procedure described at Par. 3 point B
will be automatically performed.
10.
HELP
: through this menu it is possible to download the SW help, the L9907 Datasheet
and info about the HW.
