class BLDCControlGui(Frame):
cs = 0
speed = 0
amplitude = 1
def __init__(self, parent):
self.fStopthread = False
self.mc = AVR()
Frame.__init__(self, parent)
self.parent = parent
self.initUI()
def initUI(self):
# control the prescaler value of the timer used for the pwm
scrolPrescaler = Scale(g, from_=0, to=8, label="Prescaler")
scrolPrescaler.pack(ipadx=5, side=RIGHT, fill=Y)
self.scrolPrescaler = scrolPrescaler
scrolPrescaler.config(command=self.setPrescaler)
# control the timer resolution and thus the period for the pwm
scrolPWMResolution = Scale(g, from_=0, to=16, label="PWM Resolution")
scrolPWMResolution.pack(side=RIGHT, fill=Y, ipadx=5)
self.scrolPWMResolution = scrolPWMResolution
scrolPWMResolution.config(command=self.setPWMResolution)
# control the on_period of the pwm (amplitude of the waveform)
scrolPulswitdh = Scale(g, from_=0, to=255, label="Amplitude")
scrolPulswitdh.pack(side=RIGHT, fill=Y, ipadx=5)
self.scrolPulswitdh = scrolPulswitdh
scrolPulswitdh.config(command=self.setAmplitude)
# control the position of the waveform in degrees
scrolPosistion = Scale(g, from_=0, to=359, label="Position")
scrolPosistion.pack(side=RIGHT, fill=Y, ipadx=5)
self.scrolPosistion = scrolPosistion
scrolPosistion.config(command=self.setPosition)
# control the rate of turn (change of position per period)
scrolSpeed = Scale(g, from_=0, to=60, label="Speed")
scrolSpeed.pack(side=RIGHT, fill=Y, ipadx=5)
self.scrolSpeed = scrolSpeed
scrolSpeed.config(command=self.setSpeed)
initButton = Button(g, text="init bldc controller", command=self.initPWM)
initButton.pack(anchor=CENTER)
self.initButton = initButton
pauseBbutton = Button(g, text="toggle pause in off phase", command=self.togglePause)
pauseBbutton.pack(anchor=CENTER)
self.pauseBbutton = pauseBbutton
# label = Label(g)
# label.pack()
def setPrescaler(self, *args):
self.cs = int(self.scrolPrescaler.get())
self.mc.pwm_prescaler(self.cs)
def setPWMResolution(self, *args):
self.baselen = int(args[0]) # int(self.scrolPWMResolution.get())
reso = 2 ** self.baselen - 1
self.mc.pwm_prescaler(0)
self.mc.pwm("ICR3", reso)
self.mc.pwm_prescaler(self.cs)
def setAmplitude(self, *args):
#'A', amplitude, speed
# save amplitude for speed command
self.amplitude = int(args[0])
self.mc.set_amplitude_and_speed(self.amplitude, self.speed)
def setPosition(self, *args):
# use setPhaseshift
a = (int(args[0])) % 360
b = (int(args[0]) + 120) % 360
c = (int(args[0]) + 240) % 360
self.mc.set_phase_shift(a, b, c)
def setSpeed(self, *args):
#'A', amplitude, speed
# save speed for amplitude command
self.speed = int(args[0])
self.mc.set_amplitude_and_speed(self.amplitude, self.speed)
def initPWM(self, *args):
print "PWM init"
self.mc.pwm_init()
# set default buffer
_ = self.mc.set_defaul_buff() # 'a 0'
# set phase schift
#'p' a,b,c
_ = self.mc.set_phase_shift(0, 120, 240)
# set pins to be toggled
# 'o', port_ah, pin_ah, port_al, pin_al, port_bh ...
self.mc.setValAddr(self.mc.IO.DDRJ, 0xFF) # set port F pins to output
_ = self.mc.set_output_pins(self.mc.IO.PORTJ, 0, 1, 2, 3, 4, 5)
# enable interrupt for outputcompare match A B C and overflow
self.scrolPrescaler.set(3)
self.scrolPWMResolution.set(8)
self.scrolPulswitdh.set(1)
self.scrolPosistion.set(0)
self.scrolSpeed.set(0)
timsk3_val = (
1 << self.mc.IO.OCIE3A
| 1 << self.mc.IO.OCIE3B
|
# 1 << self.mc.IO.OCIE3C |
1 << self.mc.IO.TOIE3
)
self.mc.setValAddr(self.mc.IO.TIMSK3, timsk3_val)
def togglePause(self, *args):
pass
def quit(self, *args):
print "quit"
self.fStopthread = True
"""
def on_dutycycle_change_i(self, widget):
duty_cycle = int(widget.get())
self.baselen = duty_cycle
self.mc.pwm("ICR3", self.baselen)
def on_dutycycle_change(self, param, dc):
print "scaling", dc
self.mc.pwm(param, int(dc * self.baselen / 100))
"""
"""def main(self):
