Sha256: bfff95df9668253d9225c698e9b0e99225c7236fb557ad04b82594e34b47239a
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Size: 1.58 KB
Versions: 7
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Stored size: 1.58 KB
Contents
module Denko
class Board
def spi_bb_header(clock, input, output, write, read, mode, bit_order)
# Validate clock and data pins
raise ArgumentError, "no clock pin given" unless clock
raise ArgumentError, "no input or output pin given. Require either or both" unless(input || output)
# Set the other to disabled if only one given.
input ||= 255
ouptut ||= 255
# Get the generic part of the SPI header.
header = spi_header_generic(write, read, mode, bit_order)
# Generic header + packed pins + empty byte = bit bang SPI bheader.
header = header + pack(:uint8, [clock, input, output, 0])
end
# CMD = 21
def spi_bb_transfer(select_pin, clock: nil, output: nil, input: nil, write: [], read: 0, frequency: nil, mode: nil, bit_order: nil)
raise ArgumentError, "no bytes given to read or write" if (read == 0) && (write.empty?)
header = spi_bb_header(clock, input, output, write, read, mode, bit_order)
self.write Message.encode command: 21,
pin: select_pin,
aux_message: header + pack(:uint8, write)
end
# CMD = 22
def spi_bb_listen(select_pin, clock: nil, input: nil, read: 0, frequency: nil, mode: nil, bit_order: nil)
raise ArgumentError, 'no bytes to read. Give read: argument > 0' unless (read > 0)
header = spi_bb_header(clock, input, nil, [], read, mode, bit_order)
self.write Message.encode command: 22,
pin: select_pin,
aux_message: header
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems