Class: WOoo::Electronics::IntelHexFile

Inherits:
Object
  • Object
show all
Defined in:
lib/wo_oo/electronics/intel_hex_file.rb

Class Method Summary collapse

Class Method Details

.checksum(data) ⇒ Object 



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# File 'lib/wo_oo/electronics/intel_hex_file.rb', line 56

def self.checksum(data)
  checksum = 0

  data.scan(/../).each do |value|
    checksum += WOoo::Util::HexUtil.to_i(value)
  end

  checksum = ((checksum & 255) ^ 255) + 1

  checksum
end

.read(path) ⇒ Object 



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# File 'lib/wo_oo/electronics/intel_hex_file.rb', line 8

def self.read(path)
  file_content = File.read(path)
  
  parser = WOoo::Electronics::IntelHexParser.new
  result = parser.parse(file_content)
  
  unless result.nil?
    hex_data = result.eval
    
    WOoo::Util::HexUtil.to_i(hex_data.scan(/../))
  else
    # TO FIX
    puts "PARSING ERROR!"
    puts parser.terminal_failures.join("\n")
    puts "----"
  end
end

.write(path, data, start_address = 0) ⇒ Object 



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# File 'lib/wo_oo/electronics/intel_hex_file.rb', line 28

def self.write(path, data, start_address = 0)
  next_address = start_address

  File.open(path, "w") do |file|
    while (line_data = data.slice!(0..15)).size > 0
      line_size = line_data.size
      
      file.print ":"
      
      line = WOoo::Util::HexUtil.to_hex8(line_size)
      line += WOoo::Util::HexUtil.to_hex16(next_address)
      line += "00"
      line += WOoo::Util::HexUtil.to_hex8(line_data).join("")
                  
      file.print line
      file.print WOoo::Util::HexUtil.to_hex8(checksum(line))
      
      file.print "\n"

      next_address += line_size
    end
    
    file.print ":00000001FF"
  end
end