def meas_multi():
measurements = []
# unity gain test: Vplus=Vminus
# ls = [(x, x) for x in fullrange(config.pwm.start, config.pwm.end)]
measurements += meas(None, pwm_values=None, phase='unity_gain')
# return measurements
# determine good range for both input and ouput
# d2 = data.copy()
# d2['measurements'] = measurements
low, high = calculate_good_interval(config, measurements, limit=10)
# print low, high
Alow, Ahigh = low + 0.25 * (high - low), low + 0.75 * (high - low)
low, high = map(an2pwm, [Alow, Ahigh])
# input_swing test
# output is always in good range if input is allowed
avg = (low + high) / 2
ls = [(math.ceil(x + (avg - x) / (A + 1)), x)
for x in pwm_manager.range]
measurements += meas(None, pwm_values=ls, phase='input_range')
# output_swing test
# input is always in good range
loads = [(d.pin_load, d.Rload) for d in config.loads]
for nr, R in [(None, None)] + loads:
if nr is not None:
mcu.pin.get(nr).write_mode(OUTPUT)
mcu.pin.get(nr).write_digital_value(0)
# Vminus is fixed in upper range
Aplus = Circuit(A, Vminus=Ahigh, Vout=-20).Vplus
ls = [(x, high) for x in fullrange(an2pwm(Aplus), high)]
measurements += meas(R, pwm_values=ls, phase='output_swing')
# to increase resolution
for i in range(9):
ls = [(x, high - i) for x in fullrange(an2pwm(Aplus), high)]
measurements += meas(R, pwm_values=ls, phase='output_swing')
# Vminus is fixed in lower range
Aplus = Circuit(A, Vminus=Alow, Vout=1040).Vplus
ls = [(x, low) for x in fullrange(low, an2pwm(Aplus))]
# to increase resolution
for i in range(9):
ls = [(x, low + i) for x in fullrange(low, an2pwm(Aplus))]
measurements += meas(R, pwm_values=ls, phase='output_swing')
if nr is not None:
mcu.pin.get(nr).reset()
return measurements
def meas_multi():
measurements = []
# unity gain test: Vplus=Vminus
# ls = [(x, x) for x in fullrange(config.pwm.start, config.pwm.end)]
measurements += meas(None, pwm_values=None, phase='unity_gain')
# return measurements
# determine good range for both input and ouput
# d2 = data.copy()
# d2['measurements'] = measurements
low, high = calculate_good_interval(config, measurements, limit=10)
# print low, high
Alow, Ahigh = low + 0.25 * (high - low), low + 0.75 * (high - low)
low, high = map(an2pwm, [Alow, Ahigh])
# input_swing test
# output is always in good range if input is allowed
avg = (low + high) / 2
ls = [(
math.ceil(x + (avg - x) / (A + 1)), x) for x in pwm_manager.range]
measurements += meas(None, pwm_values=ls, phase='input_range')
# output_swing test
# input is always in good range
loads = [(d.pin_load, d.Rload) for d in config.loads]
for nr, R in [(None, None)] + loads:
if nr is not None:
mcu.pin.get(nr).write_mode(OUTPUT)
mcu.pin.get(nr).write_digital_value(0)
# Vminus is fixed in upper range
Aplus = Circuit(A, Vminus=Ahigh, Vout= -20).Vplus
ls = [(x, high) for x in fullrange(an2pwm(Aplus), high)]
measurements += meas(R, pwm_values=ls, phase='output_swing')
# to increase resolution
for i in range(9):
ls = [(x, high - i) for x in fullrange(an2pwm(Aplus), high)]
measurements += meas(R, pwm_values=ls, phase='output_swing')
# Vminus is fixed in lower range
Aplus = Circuit(A, Vminus=Alow, Vout=1040).Vplus
ls = [(x, low) for x in fullrange(low, an2pwm(Aplus))]
# to increase resolution
for i in range(9):
ls = [(x, low + i) for x in fullrange(low, an2pwm(Aplus))]
measurements += meas(R, pwm_values=ls, phase='output_swing')
if nr is not None:
mcu.pin.get(nr).reset()
return measurements
def __init__(self, config, pins):
self.config = config
self.pins = pins
for p in pins:
p.write_mode(OUTPUT)
p.pwm.write_divisor(config.divisor)
self.range = fullrange(self.config.start, self.config.end)
