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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