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Dave Jones
2016-01-31 14:31:55 +00:00
parent 80f0597345
commit d5226d1fee
2 changed files with 10 additions and 8 deletions
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14
gpiozero/input_devices.py
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@@ -738,9 +738,10 @@ class MCP3xxx(AnalogInputDevice):
# Rx xxxxxxxx x0RRRRRR RRRRRRxx for the 3204/08
#
# The transmit bits start with 3 preamble bits "000" (to warm up), a
# start bit "1" followed by the mode bit(M) which is 1 for single-ended
# read, and 0 for differential read, followed by 3-bits for the channel
# (C). The remainder of the transmission are "don't care" bits (x).
# start bit "1" followed by the single/differential bit (M) which is 1
# for single-ended read, and 0 for differential read, followed by
# 3-bits for the channel (C). The remainder of the transmission are
# "don't care" bits (x).
#
# The first byte received and the top 1 bit of the second byte are
# don't care bits (x). These are followed by a null bit (0), and then
@@ -771,9 +772,10 @@ class MCP33xx(MCP3xxx):
# Rx xxxxxxxx x0SRRRRR RRRRRRRx
#
# The transmit bits start with 3 preamble bits "000" (to warm up), a
# start bit "1" followed by the mode bit(M) which is 1 for single-ended
# read, and 0 for differential read, followed by 3-bits for the channel
# (C). The remainder of the transmission are "don't care" bits (x).
# start bit "1" followed by the single/differential bit (M) which is 1
# for single-ended read, and 0 for differential read, followed by
# 3-bits for the channel (C). The remainder of the transmission are
# "don't care" bits (x).
#
# The first byte received and the top 1 bit of the second byte are
# don't care bits (x). These are followed by a null bit (0), then the

4
gpiozero/output_devices.py
View File

@@ -389,13 +389,13 @@ class PWMOutputDevice(OutputDevice):
if fade_in_time > 0.0:
sequence += [
(i * (1 / fps) / fade_in_time, 1 / fps)
for i in range(int(50 * fade_in_time))
for i in range(int(fps * fade_in_time))
]
sequence.append((1.0, on_time))
if fade_out_time > 0.0:
sequence += [
(1 - (i * (1 / fps) / fade_out_time), 1 / fps)
for i in range(int(50 * fade_out_time))
for i in range(int(fps * fade_out_time))
]
sequence.append((0.0, off_time))
if not self.active_high: