def wait(self, delay):
t0 = pyb.millis()
if delay == 0:
return
if delay == -1:
# if delay == -1 the queue got emptied without stopping the loop
blue_led.on()
return
blue_led.off()
self._led.on()
ust = pyb.micros()
# Do possibly useful things in our idle time
if delay > 6:
gct0 = pyb.micros()
gc.collect() # we have the time, so might as well clean up
self.max_gc_us = max(pyb.elapsed_micros(gct0), self.max_gc_us)
while pyb.elapsed_millis(t0) < delay:
# Measure the idle time
# Anything interesting at this point will require an interrupt
# If not some pin or peripheral or user timer, then it will be
# the 1ms system-tick interrupt, which matches our wait resolution.
# So we can save power by waiting for interrupt.
pyb.wfi()
self.idle_us += pyb.elapsed_micros(ust)
self._led.off()
def dist(self):
start = 0
end = 0
# Send a 10us pulse.
self.trigger.high()
pyb.udelay(10)
self.trigger.low()
# Wait 'till whe pulse starts.
start_tout = pyb.micros() + 1000
while self.echo.value() == 0:
start = pyb.micros()
if start > start_tout:
print("start_tout")
return -1
# Wait 'till the pulse is gone.
end_tout = pyb.micros() + 10000
while self.echo.value() == 1:
end = pyb.micros()
if end > end_tout:
print("end_tout")
return -1
# Calc the duration of the recieved pulse, divide the result by
# 2 (round-trip) and divide it by 29 (the speed of sound is
# 340 m/s and that is 29 us/cm).
dist_in_cm = end - start
return dist_in_cm
def ramp_to_simple_test():
ramp_test(75, 1000)
ramp_test(27.9, 2532)
ramp_test(100, 500)
ramp_test(-100, 2000)
ramp_test(-79, 574)
ramp_test(-89, 774)
ramp_test(0, 1500)
#ramp_test(10, 0): expect 1ms , manual test:
t1 = pyb.micros()
ramp_time = 0
ramp_time_expected = 1
power = 6
m_dc.ramp_to_simple(power, ramp_time)
t2 = pyb.micros()
delta_time = (t2-t1)/1000
pw = m_dc.get_power()
print('ramp')
print('dt: %s, dt_expected: %s' % (delta_time, ramp_time_expected) )
print('power: %s, power_expected: %s' % (pw, power) )
within_offset_dt = value_within_offset(delta_time, ramp_time_expected, 0.3)
within_offset_pw = value_within_offset(pw, power, 0.01)
assert within_offset_dt
assert within_offset_pw
m_dc.ramp_to_simple(0,100)
def balance():
gangle = 0.0
start = pyb.micros()
controlspeed = 0
fspeed = 0
while abs(gangle) < 45: # give up if inclination angle >=45 degrees
angle = imu.pitch()
rate = imu.get_gy()
gangle = compf(gangle, angle, rate, pyb.elapsed_micros(start),0.99)
start = pyb.micros()
# speed control
actualspeed = (motor1.get_speed()+motor2.get_speed())/2
fspeed = 0.95 * fspeed + 0.05 * actualspeed
cmd = radio.poll() # cmd[0] is turn speed, cmd[1] is fwd/rev speed
tangle = speedcontrol(800*cmd[1],fspeed)
# stability control
controlspeed += stability(tangle, gangle, rate)
controlspeed = constrain(controlspeed,-MAX_VEL,MAX_VEL)
# set motor speed
motor1.set_speed(-controlspeed-int(300*cmd[0]))
motor2.set_speed(-controlspeed+int(300*cmd[0]))
pyb.udelay(5000-pyb.elapsed_micros(start))
# stop and turn off motors
motor1.set_speed(0)
motor2.set_speed(0)
motor1.set_off()
motor2.set_off()
def ppt():
"""
Pyboard times:
Time to wait for not t
10
Time to wait for f
10
"""
f =False
t =True
print('Time to wait for not t')
u = pyb.micros()
while not t:
None
t = pyb.micros()-u
print (t)
print('Time to wait for f')
u = pyb.micros()
while f:
None
t = pyb.micros()-u
print (t)
def dist(self):
start = 0
end = 0
# Send a 10us pulse.
self.trigger.high()
pyb.udelay(10)
self.trigger.low()
# Wait 'till whe pulse starts.
start_tout = pyb.micros() + 1000
while self.echo.value() == 0:
start = pyb.micros()
if start > start_tout:
print("start_tout")
return -1
# Wait 'till the pulse is gone.
end_tout = pyb.micros() + 10000
while self.echo.value() == 1:
end = pyb.micros()
if end > end_tout:
print("end_tout")
return -1
# Calc the duration of the recieved pulse, divide the result by
# 2 (round-trip) and divide it by 29 (the speed of sound is
# 340 m/s and that is 29 us/cm).
dist_in_cm = end - start
return dist_in_cm
def process_acquisition(self):
"""Continue processing the acquisition. To be called periodically within the mainloop.
This is where the state machine keeps track on progress. """
if self._ms5837 and self._tsys01:
acquisition_duration = 0
if self._ms5837_awaiting_valid_measurements:
start_micro = pyb.micros()
read_success = self._ms5837.read()
if read_success:
self._ms5837_pressure = self._ms5837.pressure()
self._ms5837_temperature = self._ms5837.temperature()
self._ms5837_awaiting_valid_measurements = False
acquisition_duration += pyb.elapsed_micros(start_micro)
pyb.delay(10) # in ms
if self._tsys01_awaiting_valid_measurements:
start_micro = pyb.micros()
read_success = self._tsys01.read()
if read_success:
self._tsys01_temperature = self._tsys01.temperature()
self._tsys01_awaiting_valid_measurements = False
acquisition_duration += pyb.elapsed_micros(start_micro)
self._acquisition_duration = acquisition_duration
else:
raise Exception("Sensors are not initialized!")
def getcal(self, minutes=5):
rtc.calibration(0) # Clear existing cal
self.save_time() # Set DS3231 from RTC
self.await_transition(
) # Wait for DS3231 to change: on a 1 second boundary
tus = pyb.micros()
st = rtc.datetime()[7]
while rtc.datetime()[7] == st: # Wait for RTC to change
pass
t1 = pyb.elapsed_micros(
tus) # t1 is duration (uS) between DS and RTC change (start)
rtcstart = nownr() # RTC start time in mS
dsstart = utime.mktime(self.get_time()) # DS start time in secs
pyb.delay(minutes * 60000)
self.await_transition() # DS second boundary
tus = pyb.micros()
st = rtc.datetime()[7]
while rtc.datetime()[7] == st:
pass
t2 = pyb.elapsed_micros(
tus) # t2 is duration (uS) between DS and RTC change (end)
rtcend = nownr()
dsend = utime.mktime(self.get_time())
dsdelta = (
dsend - dsstart
) * 1000000 # Duration (uS) between DS edges as measured by DS3231
rtcdelta = (
rtcend - rtcstart
) * 1000 + t1 - t2 # Duration (uS) between DS edges as measured by RTC and corrected
ppm = (1000000 * (rtcdelta - dsdelta)) / dsdelta
return int(-ppm / 0.954)
def balance():
gangle = 0.0
start = pyb.micros()
controlspeed = 0
fspeed = 0
while abs(gangle) < 45: # give up if inclination angle >=45 degrees
angle = imu.pitch()
rate = imu.get_gy()
gangle = compf(gangle, angle, rate, pyb.elapsed_micros(start), 0.99)
start = pyb.micros()
# speed control
actualspeed = (motor1.get_speed() + motor2.get_speed()) / 2
fspeed = 0.95 * fspeed + 0.05 * actualspeed
cmd = radio.poll() # cmd[0] is turn speed, cmd[1] is fwd/rev speed
tangle = speedcontrol(800 * cmd[1], fspeed)
# stability control
controlspeed += stability(tangle, gangle, rate)
controlspeed = constrain(controlspeed, -MAX_VEL, MAX_VEL)
# set motor speed
motor1.set_speed(-controlspeed - int(300 * cmd[0]))
motor2.set_speed(-controlspeed + int(300 * cmd[0]))
pyb.udelay(5000 - pyb.elapsed_micros(start))
# stop and turn off motors
motor1.set_speed(0)
motor2.set_speed(0)
motor1.set_off()
motor2.set_off()
def update_nomag(self, accel, gyro): # 3-tuples (x, y, z) for accel, gyro
ax, ay, az = accel # Units G (but later normalised)
gx, gy, gz = (radians(x) for x in gyro) # Units deg/s
if self.start_time is None:
self.start_time = pyb.micros() # First run
q1, q2, q3, q4 = (self.q[x] for x in range(4)
) # short name local variable for readability
# Auxiliary variables to avoid repeated arithmetic
_2q1 = 2 * q1
_2q2 = 2 * q2
_2q3 = 2 * q3
_2q4 = 2 * q4
_4q1 = 4 * q1
_4q2 = 4 * q2
_4q3 = 4 * q3
_8q2 = 8 * q2
_8q3 = 8 * q3
q1q1 = q1 * q1
q2q2 = q2 * q2
q3q3 = q3 * q3
q4q4 = q4 * q4
# Normalise accelerometer measurement
norm = sqrt(ax * ax + ay * ay + az * az)
if (norm == 0):
return # handle NaN
norm = 1 / norm # use reciprocal for division
ax *= norm
ay *= norm
az *= norm
# Gradient decent algorithm corrective step
s1 = _4q1 * q3q3 + _2q3 * ax + _4q1 * q2q2 - _2q2 * ay
s2 = _4q2 * q4q4 - _2q4 * ax + 4 * q1q1 * q2 - _2q1 * ay - _4q2 + _8q2 * q2q2 + _8q2 * q3q3 + _4q2 * az
s3 = 4 * q1q1 * q3 + _2q1 * ax + _4q3 * q4q4 - _2q4 * ay - _4q3 + _8q3 * q2q2 + _8q3 * q3q3 + _4q3 * az
s4 = 4 * q2q2 * q4 - _2q2 * ax + 4 * q3q3 * q4 - _2q3 * ay
norm = 1 / sqrt(
s1 * s1 + s2 * s2 + s3 * s3 + s4 * s4) # normalise step magnitude
s1 *= norm
s2 *= norm
s3 *= norm
s4 *= norm
# Compute rate of change of quaternion
qDot1 = 0.5 * (-q2 * gx - q3 * gy - q4 * gz) - self.beta * s1
qDot2 = 0.5 * (q1 * gx + q3 * gz - q4 * gy) - self.beta * s2
qDot3 = 0.5 * (q1 * gy - q2 * gz + q4 * gx) - self.beta * s3
qDot4 = 0.5 * (q1 * gz + q2 * gy - q3 * gx) - self.beta * s4
# Integrate to yield quaternion
deltat = pyb.elapsed_micros(self.start_time) / 1000000
self.start_time = pyb.micros()
q1 += qDot1 * deltat
q2 += qDot2 * deltat
q3 += qDot3 * deltat
q4 += qDot4 * deltat
norm = 1 / sqrt(
q1 * q1 + q2 * q2 + q3 * q3 + q4 * q4) # normalise quaternion
self.q = q1 * norm, q2 * norm, q3 * norm, q4 * norm
def intCH4(line):
global ch_up,ch_up_set,fresh
if pin( ch_pin[3] ):
ch_up[3] = pyb.micros()
else:
ch_up[4] = pyb.micros()
for i in range(5):
ch_up_set[i] = ch_up[i]
fresh = True
def timing(): # Test removes overhead of pyb function calls
t = pyb.micros()
fir(data, coeffs, 100)
t1 = pyb.elapsed_micros(t)
t = pyb.micros()
fir(data, coeffs, 100)
fir(data, coeffs, 100)
t2 = pyb.elapsed_micros(t)
print(t2-t1,"uS")
def timing():
t = pyb.micros()
avg(data, 10)
t1 = pyb.elapsed_micros(t) # Time for one call with timing overheads
t = pyb.micros()
avg(data, 10)
avg(data, 10)
t2 = pyb.elapsed_micros(t) # Time for two calls with timing overheads
print(t2 - t1, "uS") # Time to execute the avg() call
def renderImageTest(self,
cached=True,
path='images',
cpath='cache'): # images/cache path
starttime = pyb.micros() // 1000
for image in os.listdir(path):
if image != cpath and image.endswith('bmp'):
self.renderBmp(image, cached=cached, bgcolor=BLACK)
return (pyb.micros() // 1000 - starttime) / 1000
def update_nomag(self, accel, gyro): # 3-tuples (x, y, z) for accel, gyro
ax, ay, az = accel # Units G (but later normalised)
gx, gy, gz = (radians(x) for x in gyro) # Units deg/s
if self.start_time is None:
self.start_time = pyb.micros() # First run
q1, q2, q3, q4 = (self.q[x] for x in range(4)) # short name local variable for readability
# Auxiliary variables to avoid repeated arithmetic
_2q1 = 2 * q1
_2q2 = 2 * q2
_2q3 = 2 * q3
_2q4 = 2 * q4
_4q1 = 4 * q1
_4q2 = 4 * q2
_4q3 = 4 * q3
_8q2 = 8 * q2
_8q3 = 8 * q3
q1q1 = q1 * q1
q2q2 = q2 * q2
q3q3 = q3 * q3
q4q4 = q4 * q4
# Normalise accelerometer measurement
norm = sqrt(ax * ax + ay * ay + az * az)
if (norm == 0):
return # handle NaN
norm = 1 / norm # use reciprocal for division
ax *= norm
ay *= norm
az *= norm
# Gradient decent algorithm corrective step
s1 = _4q1 * q3q3 + _2q3 * ax + _4q1 * q2q2 - _2q2 * ay
s2 = _4q2 * q4q4 - _2q4 * ax + 4 * q1q1 * q2 - _2q1 * ay - _4q2 + _8q2 * q2q2 + _8q2 * q3q3 + _4q2 * az
s3 = 4 * q1q1 * q3 + _2q1 * ax + _4q3 * q4q4 - _2q4 * ay - _4q3 + _8q3 * q2q2 + _8q3 * q3q3 + _4q3 * az
s4 = 4 * q2q2 * q4 - _2q2 * ax + 4 * q3q3 * q4 - _2q3 * ay
norm = 1 / sqrt(s1 * s1 + s2 * s2 + s3 * s3 + s4 * s4) # normalise step magnitude
s1 *= norm
s2 *= norm
s3 *= norm
s4 *= norm
# Compute rate of change of quaternion
qDot1 = 0.5 * (-q2 * gx - q3 * gy - q4 * gz) - self.beta * s1
qDot2 = 0.5 * (q1 * gx + q3 * gz - q4 * gy) - self.beta * s2
qDot3 = 0.5 * (q1 * gy - q2 * gz + q4 * gx) - self.beta * s3
qDot4 = 0.5 * (q1 * gz + q2 * gy - q3 * gx) - self.beta * s4
# Integrate to yield quaternion
deltat = pyb.elapsed_micros(self.start_time) / 1000000
self.start_time = pyb.micros()
q1 += qDot1 * deltat
q2 += qDot2 * deltat
q3 += qDot3 * deltat
q4 += qDot4 * deltat
norm = 1 / sqrt(q1 * q1 + q2 * q2 + q3 * q3 + q4 * q4) # normalise quaternion
self.q = q1 * norm, q2 * norm, q3 * norm, q4 * norm
def erase_chip():
cs.low()
spi.send(CMD_WRITE_ENABLE)
cs.high()
cs.low()
spi.send(CMD_ERASE_CHIP)
cs.high()
t = pyb.micros()
wait()
t = pyb.micros() - t
print ("erase chip",t)
def getTempHum(self, buzz=True):
id_bit = 0 # identificador del bit que estamos tratando
vbit = 0 # valor de la palabra de 40 bits que se lee, incluye checksum
self.oneWire.init(pyb.Pin.OUT_PP)
self.oneWire.high()
retardo=250
if buzz:
#suena buzzer
self.ch2.pulse_width(12000)
pyb.delay(80) #in msecs
self.ch2.pulse_width(0)
retardo=170
#pull the pin high and wait 250 milliseconds (ya esta en high, esperamos 250ms de todos modos)
pyb.delay(retardo)
#Host pulls low 1.5 ms
start = pyb.micros()
self.oneWire.low()
pyb.udelay(1500)
#Host pulls up 30us
self.oneWire.high()
pyb.udelay(30)
#Paso a INPUT
self.oneWire.init(pyb.Pin.IN)
#sensor pulls low 80us
while self.oneWire.value() != 0:
pass
#sensor pulls up 80us
while self.oneWire.value() != 1:
pass
#sensor pulls low 50us // start bit
while self.oneWire.value() != 0:
pass
while(True):
#bit starts
while self.oneWire.value() != 1:
pass
start = pyb.micros()
#bit ends
while self.oneWire.value() != 0:
pass
if (pyb.micros()-start) > 50:
vbit = (vbit << 1) | 0x1
else:
vbit = (vbit << 1)
id_bit = id_bit + 1
if id_bit >= 40:
check_rec = vbit & 0xff # checksum recibido
vbit = vbit >> 8 #aqui "vbit" contiene el valor medido (32 bits)
check_cal = (vbit & 0xff) + ((vbit >> 8) & 0xff) + ((vbit >> 16) & 0xff) + ((vbit >> 24) & 0xff) # checksum calculado
if check_cal != check_rec:
self.frt.setAlarmBit(2)
break
return vbit
def integrate_continuously(self, nap=10):
#print("integrating continuously, napping %d" % nap)
tscale = 1 / 1000000
then = pyb.micros()
#should_be_less_than = (nap + 30) * 1000
while True:
dt = pyb.elapsed_micros(then)
#if dt >= should_be_less_than:
# print("integration dt was", dt)
then = pyb.micros()
self.integrate(dt * tscale)
self.show_balls()
yield from sleep(nap)
def testfunc(a):
start = pyb.micros()
while not a.mag_ready:
pass
dt = pyb.elapsed_micros(start)
print("Wait time = {:5.2f}mS".format(dt / 1000))
start = pyb.micros()
xyz = a.mag.xyz
dt = pyb.elapsed_micros(start)
print("Time to get = {:5.2f}mS".format(dt / 1000))
print("x = {:5.3f} y = {:5.3f} z = {:5.3f}".format(xyz[0], xyz[1], xyz[2]))
print("Mag status should be not ready (False): ", a.mag_ready)
print("Correction factors: x = {:5.3f} y = {:5.3f} z = {:5.3f}".format(
a.mag_correction[0], a.mag_correction[1], a.mag_correction[2]))
def erase(cmd,addr):
cs.low()
spi.send(CMD_WRITE_ENABLE)
cs.high()
cs.low()
spi.send(cmds[cmd])
spi.send(addr>>16)
spi.send(addr>>8)
spi.send(addr)
cs.high()
t = pyb.micros()
wait()
t = pyb.micros() - t
print ("erase",cmd,t,'us')
def ramp_test(power, ramp_time):
t1 = pyb.micros()
#ramp_time = 1000
#power = 75
m_dc.ramp_to_simple(power, ramp_time)
t2 = pyb.micros()
delta_time = (t2-t1)/1000
pw = m_dc.get_power()
print('ramp')
print('dt: %s, dt_expected: %s' % (delta_time, ramp_time) )
print('power: %s, power_expected: %s' % (pw, power) )
within_percent_dt = value_within_percentage(delta_time, ramp_time, 5)
within_offset_pw = value_within_offset(pw, power, 0.01)
assert within_percent_dt
assert within_offset_pw
def renderImageTest(self,
cached=True,
path=imgdir,
cpath=cachedir,
delay=0,
bgcolor=BLACK): # images/cache path
starttime = pyb.micros() // 1000
cachelist = os.listdir(imgcachepath)
print(cachedir + 'd ' + imgdir + ':', cachelist)
for image in os.listdir(path):
if image != cpath and image.endswith('bmp'):
self.renderBmp(image, cached=cached, bgcolor=bgcolor)
if delay:
pyb.delay(delay)
return (pyb.micros() // 1000 - starttime) / 1000
def erase(self, cmd, addr):
self.cs.low()
self.spi.send(CMD_WRITE_ENABLE)
self.cs.high()
print("write enable")
self.cs.low()
self.spi.send(cmds[cmd])
self.spi.send(addr >> 16)
self.spi.send(addr >> 8)
self.spi.send(addr)
self.cs.high()
t = pyb.micros()
self.wait()
t = pyb.micros() - t
print("erase: ", cmd, addr, t, 'us')
def p(c='X8'):
"""
time get a pin value
13
"""
p = pyb.Pin(c,pyb.Pin.OUT_PP,pull=pyb.Pin.PULL_NONE)
p.low()
print(p.value())
print('time get a pin value')
u = pyb.micros()
p.value()
t = pyb.micros()-u
print (t)
def thr_instrument(objSch, lstResult):
yield # Don't measure initialisation phase (README.md)
while True:
start = pyb.micros() # More typically we'd measure our own code
yield # but here we're measuring yield delays
lstResult[0] = max(lstResult[0], pyb.elapsed_micros(start))
lstResult[1] += 1
def thr_instrument(objSch, lstResult):
yield # Don't measure initialisation phase (README.md)
while True:
start = pyb.micros() # More typically we'd measure our own code
yield # but here we're measuring yield delays
lstResult[0] = max(lstResult[0], pyb.elapsed_micros(start))
lstResult[1] += 1
def reset(self, debug=False):
"""Reset the module and read the boot message.
ToDo: Interpret the boot message and do something reasonable with
it, if possible."""
boot_log = []
if debug:
start = micros()
self._execute_command(CMDS_GENERIC['RESET'], debug=debug)
# wait for module to boot and messages appearing on self.uart
timeout = 300
while not self.uart.any() and timeout > 0:
delay(10)
timeout -= 1
if debug and timeout == 0:
print("%8i - RX timeout occured!" % (elapsed_micros(start)))
# wait for messages to finish
timeout = 300
while timeout > 0:
if self.uart.any():
boot_log.append(self.uart.readline())
if debug:
print("%8i - RX: %s" %
(elapsed_micros(start), str(boot_log[-1])))
delay(20)
timeout -= 1
if debug and timeout == 0:
print("%8i - RTimeout occured while waiting for module to boot!" %
(elapsed_micros(start)))
return boot_log[-1].rstrip() == b'ready'
def IRQ(self, pin):
if self.return_pin.value():
self.start_micros = micros()
elif self.start_micros is not None:
self.elapsed = elapsed_micros(self.start_micros)
else:
self.bogus = True
def read_status_packet(self):
"""Reads a status packet and returns it.
Rasises a bioloid.bus.BusError if an error occurs.
"""
pkt = packet.Packet()
while True:
start = pyb.micros()
byte = self.serial_port.read_byte()
if byte is None:
raise BusError(packet.ErrorCode.TIMEOUT)
err = pkt.process_byte(byte)
if err != packet.ErrorCode.NOT_DONE:
break
if err != packet.ErrorCode.NONE:
raise BusError(err)
if self.show & Bus.SHOW_COMMANDS:
log('Rcvd Status: {}'.format(packet.ErrorCode(err)))
if self.show & Bus.SHOW_PACKETS:
dump_mem(pkt.pkt_bytes, prefix=' R', show_ascii=True, log=log)
err = pkt.error_code()
if err != packet.ErrorCode.NONE:
raise BusError(err)
return pkt
def tx_rx(self, tx, nr_chars):
""" Send command to and receive respons from SA7S"""
''' rx = uart.readall() # Receive respons TAKES 1.0 sec ALWAYS (after uart.any) TimeOut!!!! '''
i = 0
rx = ''
# todo: do check if respons == same as sent: repeat otherwise
self.uart.write(tx) # Send to unit
# print("uart.write: i, tx: ", i, tx[:-1])
while True: # Typiskt 2–3 (search: 4) varv i loopen
i += 1
if self.uart.any(): # returns True if any characters wait
dbg.high()
strt = micros()
rx = b''
j = 0
while True: # Typically 10–20 (search: 12; M, R & W0144: 1) loops
j += 1
rxb = self.uart.read(nr_chars) # uart.readln och uart.readall ger båda timeout (1s default)
rx = rx + rxb
if (len(rx) >= nr_chars) or (rxb == b'\r'): # End of search returns \r
break
dbg.low()
##print("uart.read: i, j, tx, rx, ∆time ", i, j, tx[:-1], rx, len(rx), elapsed_micros(strt) / 1e6, 's')
delay(84)
break
else:
delay(10)
return rx
def ni():
print ('Native: how many instructions can we do in 100 us')
count = 0
u = pyb.micros()
while pyb.elapsed_micros(u) < 100:
count+=1
print(count)
def timing(): # Check magnetometer call timings
imu.mag_triggered = False # May have been left True by above code
start = pyb.micros()
imu.get_mag_irq()
t1 = pyb.elapsed_micros(start)
start = pyb.micros()
imu.get_mag_irq()
t2 = pyb.elapsed_micros(start)
pyb.delay(200)
start = pyb.micros()
imu.get_mag_irq()
t3 = pyb.elapsed_micros(start)
# 1st call initialises hardware
# 2nd call tests it (not ready)
# 3rd call tests ready (it will be after 200mS) and reads data
print(t1, t2, t3) # 1st call takes 265uS second takes 175uS. 3rd takes 509uS
def MakeCTRimproved(number):
"""
Een nummer (de counter) wordt omgezet in een vier op vier matrix.
:param number: Een getal tussen de 0 en de 2**128-1
:return matrix: 4x4-matrix
"""
start = pyb.micros()
def testfunc(a):
start = pyb.micros()
while not a.mag_ready:
pass
dt = pyb.elapsed_micros(start)
print("Wait time = {:5.2f}mS".format(dt / 1000))
start = pyb.micros()
xyz = a.mag.xyz
dt = pyb.elapsed_micros(start)
print("Time to get = {:5.2f}mS".format(dt / 1000))
print("x = {:5.3f} y = {:5.3f} z = {:5.3f}".format(xyz[0], xyz[1], xyz[2]))
print("Mag status should be not ready (False): ", a.mag_ready)
print(
"Correction factors: x = {:5.3f} y = {:5.3f} z = {:5.3f}".format(
a.mag_correction[0], a.mag_correction[1], a.mag_correction[2]
)
)
def timing(): # Check magnetometer call timings
imu.mag_triggered = False # May have been left True by above code
start = pyb.micros()
imu.get_mag_irq()
t1 = pyb.elapsed_micros(start)
start = pyb.micros()
imu.get_mag_irq()
t2 = pyb.elapsed_micros(start)
pyb.delay(200)
start = pyb.micros()
imu.get_mag_irq()
t3 = pyb.elapsed_micros(start)
# 1st call initialises hardware
# 2nd call tests it (not ready)
# 3rd call tests ready (it will be after 200mS) and reads data
print(t1, t2, t3) # 1st call takes 265uS second takes 175uS. 3rd takes 509uS
def timeItRunner():
global start,co,avg,sm,nb
sm=nb=0
start=pyb.micros()
co.value(1)
while True:
avg = 0 if not nb else sm/nb
print('avg:\t' + str(avg))
def evaluate(total, lcd):
lcd.light(False)
yield
starttime = pyb.micros()
yield
endtime = pyb.micros()
t = total[0]
lcd.light(True)
us = endtime - starttime
text = "c/s: %f " % (t/ 10)
lcd.text(text, 0, 10, 1)
lcd.show()
log.info("Total micros in 10 second runtime: %f", us / 1000000)
log.info("Total counts: %d counts /sec: %f ", t, t / 10)
yield asyncio.KillOs()
def timer():
start = pyb.micros()
#reform_list(([[1,2,3,4],[1,2,3,4],[1,2,3,4],[1,2,3,4]],15,[[1,2,3,4],[1,2,3,4],[1,2,3,4],[1,2,3,4]]))
#Encryptie.Vercijfering(12,[255,255,1,0,255,110,211,0,0,255,144,255,0,5,10,240])
#read(NB_READINGS)
encrypt(
[255, 255, 1, 0, 255, 110, 211, 0, 0, 255, 144, 255, 0, 5, 10, 240])
return pyb.elapsed_micros(start)
def writerCirc():
global handlerIndex,outData,tbInData,interruptCounter,period,start
if outData.nbElts:
tbInData.put(outData.get())
else:
handlerIndex ^=1
period[interruptCounter] = pyb.elapsed_micros(start)
interruptCounter+=1
start=pyb.micros()
def writer():
global handlerIndex,outData,interruptCounter,period,start
if outData.nbElts:
pdov(outData.get()%2)
else:
handlerIndex ^=1
period[interruptCounter] = pyb.elapsed_micros(start)
interruptCounter+=1
start=pyb.micros()
def test_render_time(self):
# Rendering takes the expected amount of time
n = 10
t0 = pyb.micros()
for i in range(n):
self.p.render()
dt = pyb.elapsed_micros(t0)
average_ms = dt / (n * 1000)
print("%d renders average %f ms" % (n, average_ms), end='')
self.assertTrue(average_ms < 15, "average render time %f ms" % (average_ms))
def tone1(freq):
t0 = micros()
dac = DAC(1)
while True:
theta = 2*math.pi*float(elapsed_micros(t0))*freq/1e6
fv = math.sin(theta)
v = int(126.0 * fv) + 127
#print("Theta %f, sin %f, scaled %d" % (theta, fv, v))
#delay(100)
dac.write(v)
def readerCirc():
global bitsExpected,inData,tbOutData,interruptCounter,period,start
if bitsExpected == inData.nbElts:
# we're done
stop()
else:
inData.put(tbOutData.get())
period[interruptCounter] = pyb.elapsed_micros(start)
interruptCounter+=1
start=pyb.micros()
def pulseIn(pin, value, timeout=100000, width=1000000):
try:
if value == LOW:
v0 = 1
v1 = 0
elif value == HIGH:
v0 = 0
v1 = 1
start = pyb.micros()
while pin.value() == v0:
if pyb.elapsed_micros(start) > timeout:
return
start = pyb.micros()
while pin.value() == v1:
if pyb.elapsed_micros(start) >= width:
break
return pyb.elapsed_micros(start)
except:
pass
def test_render_time(self):
# Rendering takes the expected amount of time
n = 10
t0 = pyb.micros()
for i in range(n):
self.p.render()
dt = pyb.elapsed_micros(t0)
average_ms = dt / (n * 1000)
print("%d renders average %f ms" % (n, average_ms), end='')
self.assertTrue(average_ms < 15,
"average render time %f ms" % (average_ms))
def nm3_callback(line):
# NB: You cannot do anything that allocates memory in this interrupt handler.
global _nm3_callback_flag
global _nm3_callback_seconds
global _nm3_callback_millis
global _nm3_callback_micros
# NM3 Callback function
_nm3_callback_micros = pyb.micros()
_nm3_callback_millis = pyb.millis()
_nm3_callback_seconds = utime.time()
_nm3_callback_flag = True
def read_sal_from_all(self, start):
'''
switches to and reads ADC for all, returns one tuple with the times
of reads in us and values between 0 and 4096
'''
times = [0]*8
values = [0]*8
for i in range(1, 9):
times[i-1] = pyb.micros() - start
values[i-1] = self.read_sal_from(i)
return times, values
def ct(c='X8'):
bits = 0
for i in range(5):
bits = (bits <<2) |2
#p = pyb.Pin(c,pyb.Pin.OUT_OD,pull=pyb.Pin.PULL_NONE)
u = pyb.micros()
while (bits):
pyb.udelay(50)
if(bits & 1):
p = pyb.Pin(c,pyb.Pin.IN,pull=pyb.Pin.PULL_UP)
else:
p = pyb.Pin(c,pyb.Pin.OUT_OD,pull=pyb.Pin.PULL_NONE)
p.low()
bits = bits >> 1
#pyb.udelay(10)
t= pyb.micros()-u
#p = pyb.Pin(c,pyb.Pin.IN,pull=pyb.Pin.PULL_UP)
#while not p.value():
# print('o')
print('elapsed time: ' +str(t))
def tn(c='X8'):
print ('NATIVE: how many pin values can we do in 100 us')
p = pyb.Pin(c,pyb.Pin.OUT_PP,pull=pyb.Pin.PULL_NONE)
bit = 1
p.value(bit)
count = 0
u = pyb.micros()
while pyb.elapsed_micros(u) < 100:
bit ^= 1
p.value(bit)
count+=1
print(count)
def align():
lcd.clear()
lcd.text("Acc",0,56,1)
lcd.text("CompF",64,56,1)
graphics.drawCircle(lcd,32,26,26,1)
graphics.drawCircle(lcd,96,26,26,1)
start = pyb.micros()
cangle = 90.0
while abs(cangle)>2.0:
angle = imu.pitch()
cangle = compf(cangle, angle, imu.get_gy(), pyb.elapsed_micros(start),0.91)
start = pyb.micros()
graphics.line(lcd,32,26,angle,24,1)
graphics.line(lcd,96,26,cangle,24,1)
lcd.display()
graphics.line(lcd,32,26,angle,24,0)
graphics.line(lcd,96,26,cangle,24,0)
lcd.clear()
lcd.text("Start balancing!.",0,24,1)
lcd.text('zero:{:5.2f}'.format(cangle),0,32,1)
lcd.display()
def pt(c='X8'):
p = pyb.Pin(c,pyb.Pin.OUT_PP,pull=pyb.Pin.PULL_NONE)
p.low()
print(p.value())
print('time for LOW output to get PULLED HIGH as input')
u = pyb.micros()
p.init(pyb.Pin.IN,pull=pyb.Pin.PULL_UP)
while not p.value():
pass
t = pyb.micros()-u
print (t)
print('time for a HIGH input to go to LOW output')
u = pyb.micros()
p = pyb.Pin(c,pyb.Pin.OUT_PP,pull=pyb.Pin.PULL_NONE)
p.low()
while p.value():
pass
t = pyb.micros()-u
print (t)
print('time for a LOW output to go to HIGH output')
u = pyb.micros()
p.value(1)
while not p.value():
pass
t = pyb.micros()-u
print (t)
def pppt():
"""
time to do absolutely nothing.
9
time to execute None.
8
time to execute 5x None.
9
"""
print('time to do absolutely nothing.')
u = pyb.micros()
t = pyb.micros()-u
print (t)
print('time to execute None.')
u = pyb.micros()
None
t = pyb.micros()-u
print (t)
print('time to execute 5x None.')
u = pyb.micros()
None
None
None
None
None
t = pyb.micros()-u
print (t)
def align():
lcd.clear()
lcd.text("Acc", 0, 56, 1)
lcd.text("CompF", 64, 56, 1)
graphics.drawCircle(lcd, 32, 26, 26, 1)
graphics.drawCircle(lcd, 96, 26, 26, 1)
start = pyb.micros()
cangle = 90.0
while abs(cangle) > 2.0:
angle = imu.pitch()
cangle = compf(cangle, angle, imu.get_gy(), pyb.elapsed_micros(start),
0.91)
start = pyb.micros()
graphics.line(lcd, 32, 26, angle, 24, 1)
graphics.line(lcd, 96, 26, cangle, 24, 1)
lcd.display()
graphics.line(lcd, 32, 26, angle, 24, 0)
graphics.line(lcd, 96, 26, cangle, 24, 0)
lcd.clear()
lcd.text("Start balancing!.", 0, 24, 1)
lcd.text('zero:{:5.2f}'.format(cangle), 0, 32, 1)
lcd.display()
def blink_micros():
start = pyb.micros()
led.on()
while pyb.elapsed_micros(start) < 100000:
pass
led.off()
while pyb.elapsed_micros(start) < 200000:
pass
led.on()
while pyb.elapsed_micros(start) < 300000:
pass
led.off()
while pyb.elapsed_micros(start) < 1000000:
pass
def t_4_callback(self, tim):
# Read ADC value and current time
value = self.adc.read()
t = pyb.micros() - self.t_start
# Add value and time to buffer
self.buf_0[self.buf_index][0] = t
self.buf_0[self.buf_index][1] = value
# Increment buffer index until buffer is filled,
# then disable interrupt and change status
self.buf_index += 1
if (self.buf_index >= len(self.buf_0)):
self.tim.callback(None)
self.status = 'Store'
def test(spi=3, cs='PB0'):
print("SPI flash")
cs = Pin(cs, Pin.OUT_PP)
spi = SPI(spi, SPI.MASTER, baudrate=42000000, polarity=0, phase=0)
flash = SPIFlash(spi, cs)
print("Getting chip ID...")
flash.wait()
id_ = flash.getid()
print("ID:", ubinascii.hexlify(id_))
print("Reading block (32b) from address 0...")
buf = bytearray(32)
flash.read_block(0, buf)
print(ubinascii.hexlify(buf))
addr = 12 * 600 + 8
print("Reading block (32b) from address {}...".format(addr))
flash.read_block(addr, buf)
print(ubinascii.hexlify(buf))
addr = 524288
print("Erasing 4k block at address {}...".format(addr))
t1 = micros()
flash.erase(addr, '4k')
# flash.erase(addr, '32k')
# flash.erase(addr, '64k')
# flash.erase_chip()
t = micros() - t1
print("erase {} us".format(t))
print("Writing blocks (256b) at address {}...".format(addr))
buf = bytearray(range(256))
t1 = micros()
flash.write_block(addr, buf)
t = micros() - t1
mbs = len(buf) * 8. / t
print("write({}) {} us, {} mbs".format(len(buf), t, mbs))
print("Verifying write...")
v = bytearray(256)
flash.read_block(addr, v)
if (v == buf):
print("write/read ok")
else:
print("write/read FAILed")
print("Timing 32k read from address 0...")
gc.collect()
buf = bytearray(32 * 1024)
t1 = micros()
flash.read_block(0, buf)
t = micros() - t1
mbs = len(buf) * 8. / t
print("read({}) {} us, {} mbs".format(len(buf), t, mbs))