61 lines
1.6 KiB
Ruby
61 lines
1.6 KiB
Ruby
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#!/usr/bin/env ruby
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## uncyacd.rb -- reconstituting PSoC boot files from their proprietary format
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# .cyacd file format:
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# [4-byte SiliconID][1-byte SiliconRev][checksum type]
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# The data records have the format:
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# [1-byte ArrayID][2-byte RowNumber][2-byte DataLength][N-byte Data][1byte Checksum]
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# The Checksum is computed by summing all bytes (excluding the checksum itself) and then taking the 2's complement.
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filename = ARGV.first || sprintf('%s/git/rouster/USB_Digital_Audio1500_bb.cyacd', ENV['HOME']) if filename.nil?
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filename = sprintf('%s/git/h4ck/revolabs-flx_uc_1000/test.cyacd', ENV['HOME'])
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unless File.file?(filename)
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puts sprintf('USAGE: %s <file.cyacd>', File.basename(__FILE__))
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exit 0
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end
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File.open(filename, 'rb') do |f|
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to_read = 1
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array_id = f.read(to_read)
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to_read = 2
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row_number = f.read(to_read)
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to_read = 2
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data_length = f.read(to_read)
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to_read = data_length
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data = f.read(to_read) # TODO not sure that this will actually be an integer
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to_read = 1
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checksum = f.read(to_read)
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p 'DBGZ' if nil?
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end
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# current_bucket = 0
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# bucket_size = 10
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#
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# File.open(filename, 'rb') do |f|
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# p 'DBGZ' if nil?
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# f.seek(current_bucket * bucket_size)
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# s = f.read(bucket_size)
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# current_bucket += 1
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# p 'DBGZ' if nil?
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# end
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contents = File.read(filename)
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contents.split("\n").each do |line|
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# this should show us how to actually do this: https://github.com/gv1/hex2cyacd/blob/master/ihex2cyacd.pl
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split = line.split(':')
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label = split.first.chomp
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split[1..split.size].each do |data|
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p 'DBGZ' if nil?
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end
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end
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