Class: OrigenTesters::IGXLBasedTester::Base

Inherits:
Object
  • Object
show all
Includes:
VectorBasedTester
Defined in:
lib/origen_testers/igxl_based_tester/base.rb,
lib/origen_testers/igxl_based_tester/base/flow.rb,
lib/origen_testers/igxl_based_tester/base/patset.rb,
lib/origen_testers/igxl_based_tester/base/patsets.rb,
lib/origen_testers/igxl_based_tester/base/patsubr.rb,
lib/origen_testers/igxl_based_tester/base/patgroup.rb,
lib/origen_testers/igxl_based_tester/base/patsubrs.rb,
lib/origen_testers/igxl_based_tester/base/flow_line.rb,
lib/origen_testers/igxl_based_tester/base/generator.rb,
lib/origen_testers/igxl_based_tester/base/patgroups.rb,
lib/origen_testers/igxl_based_tester/base/test_instance.rb,
lib/origen_testers/igxl_based_tester/base/patset_pattern.rb,
lib/origen_testers/igxl_based_tester/base/test_instances.rb,
lib/origen_testers/igxl_based_tester/base/patsubr_pattern.rb,
lib/origen_testers/igxl_based_tester/base/test_instance_group.rb

Overview

This is the base class of all IGXL-based testers

Direct Known Subclasses

J750, UltraFLEX

Defined Under Namespace

Modules: Generator Classes: Flow, FlowLine, Patgroup, Patgroups, Patset, PatsetPattern, Patsets, Patsubr, PatsubrPattern, Patsubrs, TestInstance, TestInstanceGroup, TestInstances

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from VectorBasedTester

#register_tester

Constructor Details

#initializeBase

Returns a new IGXLBasedTester instance, normally there would only ever be one of these assigned to the global variable such as $tester by your target.



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 16

def initialize
  @unique_counter = 0
  @counter_lsb_bits = 0
  @counter_msb_bits = 0
  @max_repeat_loop = 65_535 # 16 bits
  @min_repeat_loop = 2
  @pat_extension = 'atp'
  @active_loads = true
  @pipeline_depth = 34
  @software_version = ''
  @compress = true
  @support_repeat_previous = true
  @match_entries = 10
  @name = ''
  @program_comment_char = ['logprint', "'"]
  @opcode_mode = :extended
  @flags = %w(cpuA cpuB cpuC cpuD)
  @microcode = {}
  @microcode[:enable] = 'enable'
  @microcode[:set_flag] = 'set_cpu'
  @microcode[:mask_vector] = 'ign ifc icc'

  @mask_vector = false   # sticky option to mask all subsequent vectors

  @min_pattern_vectors = 0  # no minimum

  @memory_test_en = false  # memory test enabled (for all patterns?)
end

Instance Attribute Details

#memory_test_enObject

Returns the value of attribute memory_test_en.



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 9

def memory_test_en
  @memory_test_en
end

#pattern_compiler_pinmapObject

Returns the value of attribute pattern_compiler_pinmap.



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 8

def pattern_compiler_pinmap
  @pattern_compiler_pinmap
end

#software_versionObject

Returns the value of attribute software_version.



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 7

def software_version
  @software_version
end

Instance Method Details

#assign_dc_instr_pins(dc_pins) ⇒ Object



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 45

def assign_dc_instr_pins(dc_pins)
  @dc_pins = dc_pins
end

#branch_to(label) ⇒ Object Also known as: branch

Branch execution to the given point.

This generates a new vector with a jump instruction to a given label. This method will generate an additional vector.

Examples

$tester.branch_to("something_significant")


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 406

def branch_to(label)
  cycle(microcode: "jump #{label}")
end

#call_matchObject

Call a match loop.

Normally you would put your match loop in a global subs pattern, then you can call it via this method. This method automatically syncs match loop naming with the match generation flow, no arguments required.

This is an IGXLBasedTester specific API.

Examples

$tester.cycle
$tester.call_match  # Calls the match loop, or the first entry point if you have multiple
$tester.cycle
$tester.call_match  # Calls the match loop, or the second entry point if you have multiple


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 365

def call_match
  @match_counter = @match_counter || 0
  call_subroutine("match_done_#{@match_counter}")
  @match_counter += 1 unless @match_counter == (@match_entries || 1) - 1
end

#call_subroutine(name, options = {}) ⇒ Object

Call a subroutine.

This method applies a call subroutine opcode to the previous vector, it does not generate a new vector.

Subroutines should always be called through this method as it ensures a running log of called subroutines is maintained and which then gets output in the pattern header to import the right dependencies.

An offset option is available to make the call on earlier vectors.

Examples

$tester.call_subroutine("mysub")
$tester.call_subroutine("my_other_sub", :offset => -1)


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 132

def call_subroutine(name, options = {})
  options = {
    offset: 0
  }.merge(options)
  called_subroutines << name.to_s.chomp unless called_subroutines.include?(name.to_s.chomp) || @inhibit_vectors
  update_vector microcode: "call #{name}", offset: options[:offset]
end

#called_subroutinesObject

Returns an array of subroutines called while generating the current pattern



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 548

def called_subroutines
  @called_subroutines ||= []
end

#cycle(options = {}) ⇒ Object



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 629

def cycle(options = {})
  if @mask_vector
    # tack on masking opcodes
    super(options.merge(microcode: "#{options[:microcode]} #{@microcode[:mask_vector]}"))
  else
    super(options)
  end
end

#enable_flag(options = {}) ⇒ Object



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 607

def enable_flag(options = {})
  options = { flagnum: 4,      # default flag to use
          }.merge(options)

  if options[:flagnum] > @flags.length
    abort "ERROR! Invalid flag value passed to 'enable_flag' method!\n"
  end
  flagname = @flags[options[:flagnum] - 1]
  update_vector(microcode: "#{@microcode[:enable]}(#{flagname})")
end

#end_subroutine(cond = false) ⇒ Object

End a subroutine.

Generates a return opcode on the last vector.

Examples

$tester.start_subroutine("wait_for_done")
< generate your subroutine vectors here >
$tester.end_subroutine

cond: whether return is conditional on a flag (to permit to mix subrs together)



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 163

def end_subroutine(cond = false)
  if cond
    update_vector microcode: 'if (flag) return'
  else
    update_vector microcode: 'return'
  end
end

#flowsObject



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 53

def flows
  parser.flows
end

#format_vector(vec) ⇒ Object

This is an internal method use by Origen which returns a fully formatted vector You can override this if you wish to change the output formatting at vector level



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 559

def format_vector(vec)
  timeset = vec.timeset ? "> #{vec.timeset.name}" : ''
  pin_vals = vec.pin_vals ? "#{vec.pin_vals} ;" : ''
  if vec.repeat > 1
    microcode = "repeat #{vec.repeat}"
  else
    microcode = vec.microcode ? vec.microcode : ''
  end
  if vec.pin_vals && ($_testers_enable_vector_comments || vector_comments)
    comment = " // #{vec.number}:#{vec.cycle} #{vec.inline_comment}"
  else
    comment = vec.inline_comment.empty? ? '' : " // #{vec.inline_comment}"
  end

  "#{microcode.ljust(65)}#{timeset.ljust(31)}#{pin_vals}#{comment}"
end

#freq_count(pin, options = {}) ⇒ Object

Do a frequency measure.

Write the necessary micro code to do a frequency measure on the given pin, optionally supply a read code to pass information to the tester.

Examples

$tester.freq_count($top.pin(:d_out))                 # Freq measure on pin "d_out"
$tester.freq_count($top.pin(:d_out):readcode => 10)


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 179

def freq_count(pin, options = {})
  options = { readcode: false
            }.merge(options)

  set_code(options[:readcode]) if options[:readcode]
  cycle(microcode: "#{@microcode[:set_flag]} (cpuA)")
  cycle(microcode: "#{@microcode[:set_flag]} (cpuA)")
  cycle(microcode: "#{@microcode[:set_flag]} (cpuB)")
  cycle(microcode: "#{@microcode[:set_flag]} (cpuC)")
  cycle(microcode: 'freq_loop_1:')
  cycle(microcode: 'if (cpuA) jump freq_loop_1')
  pin.drive_lo
  delay(2000)
  pin.dont_care
  cycle(microcode: "freq_loop_2: #{@microcode[:enable]} (#{@flags[1]})")
  cycle(microcode: 'if (flag) jump freq_loop_2')
  cycle(microcode: "#{@microcode[:enable]} (#{@flags[2]})")
  cycle(microcode: 'if (flag) jump freq_loop_1')
end

#get_dc_instr_pinsObject



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 49

def get_dc_instr_pins
  @dc_pins
end

#ignore_fails(*pins) ⇒ Object



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 601

def ignore_fails(*pins)
  pins.each(&:suspend)
  yield
  pins.each(&:resume)
end

#label(name, global = false) ⇒ Object

Apply a label to the pattern.

No additional vector is generated. Arguments:

  name : label name
global : (optional) whether to apply global label, default=false

Examples

$tester.label("something_significant")
$tester.label("something_significant",true) # apply global label


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 381

def label(name, global = false)
  global_opt = (global) ? 'global ' : ''
  microcode global_opt + name + ':'
end

#local_subroutinesObject

Returns an array of subroutines created by the current pattern



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 553

def local_subroutines # :nodoc:
  @local_subroutines ||= []
end

#loop_vectors(name, number_of_loops, global = false, label_first = false) ⇒ Object Also known as: loop_vector

Add loop to the pattern.

Pass in a name for the loop and the number of times to execute it, all vectors generated by the given block will be captured in the loop.

Optional arguments: global - whether to apply global label (default=false)

label_first - whether to apply loop label before loop vector or not

Examples

$tester.loop_vectors("pulse_loop", 3) do   # Do this 3 times...
    $tester.cycle
    some_other_method_to_generate_vectors
end


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 424

def loop_vectors(name, number_of_loops, global = false, label_first = false)
  if number_of_loops > 1
    @loop_counters ||= {}
    if @loop_counters[name]
      @loop_counters[name] += 1
    else
      @loop_counters[name] = 0
    end
    loop_name = @loop_counters[name] == 0 ? name : "#{name}_#{@loop_counters[name]}"
    if label_first
      global_opt = (global) ? 'global ' : ''
      microcode "#{global_opt}#{loop_name}: "
    end
    cycle(microcode: "loopA #{number_of_loops}")
    unless label_first
      global_opt = (global) ? 'global ' : ''
      cycle(microcode: "#{global_opt}#{loop_name}: ")
    end
    yield
    cycle(microcode: "end_loopA #{loop_name}")
  else
    yield
  end
end

#mask_fails(setclr) ⇒ Object



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 638

def mask_fails(setclr)
  @mask_vector = setclr
end

#match(pin, state, timeout, options = {}) ⇒ Object

Generates a match loop on up to two pins.

This method is not really intended to be called directly, rather you should call via Tester#wait e.g. $tester.wait(:match => true).

The timeout should be provided in cycles, however when called via the wait method the time-based helpers (time_in_us, etc) will be converted to cycles for you. The following options are available to tailor the match loop behavior, defaults in parenthesis:

  • :pin - The pin object to match on (required)

  • :state - The pin state to match on, :low or :high (required)

  • :pin2 (nil) - Optionally supply a second pin to match on

  • :state2 (nil) - State for the second pin (required if :pin2 is supplied)

  • :check_for_fails (false) - Flushes the pipeline and handshakes with the tester (passing readcode 100) prior to the match (to allow binout of fails encountered before the match)

  • :force_fail_on_timeout (true) - Force a vector mis-compare if the match loop times out

  • :on_timeout_goto (“”) - Optionally supply a label to branch to on timeout, by default will continue from the end of the match loop

  • :on_pin_match_goto (“”) - Optionally supply a label to branch to when pin 1 matches, by default will continue from the end of the match loop

  • :on_pin2_match_goto (“”) - Optionally supply a label to branch to when pin 2 matches, by default will continue from the end of the match loop

  • :multiple_entries (false) - Supply an integer to generate multiple entries into the match (each with a unique readcode), this can be useful when debugging patterns with multiple matches

  • :force_fail_on_timeout (true) - force pattern to fail if timeout occurs

  • :global_loops (false) - whether match loop loops should use global labels

  • :manual_stop (false) - whether to use extra cpuB flag to resolve IG-XL v.3.50.xx bug where VBT clears cpuA immediately

    at start of PatFlagFunc instead of at end.  Use will have to manually clear cpuB to resume this pattern.
    

Examples

$tester.wait(:match => true, :time_in_us => 5000, :pin => $top.pin(:done), :state => :high)


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 303

def match(pin, state, timeout, options = {})
  options = {
    check_for_fails:       false,
    on_timeout_goto:       false,
    pin2:                  false,
    state2:                false,
    on_pin_match_goto:     false,
    multiple_entries:      false,
    force_fail_on_timeout: true,
    global_loops:          false,
    manual_stop:           false,
    clr_fail_post_match:   false
  }.merge(options)

  match_block(timeout, options) do |match_conditions, fail_conditions|
    # Define match conditions
    match_conditions.add do
      state == :low ? pin.expect_lo : pin.expect_hi
      cc "Check if #{pin.name} is #{state == :low ? 'low' : 'high'}"
      cycle
      pin.dont_care
    end

    if options[:pin2]
      match_conditions.add do
        state == :low ? pin.expect_hi : pin.expect_lo
        options[:state2] == :low ? options[:pin2].expect_lo : options[:pin2].expect_hi
        cc "Check if #{options[:pin2].name} is #{options[:state2] == :low ? 'low' : 'high'}"
        cycle
        options[:pin2].dont_care
        pin.dont_care
      end
    end

    # Define fail conditions
    fail_conditions.add do
      state == :low ? pin.expect_lo : pin.expect_hi
      cc "Check if #{pin.name} is #{state == :low ? 'low' : 'high'}"
      if options[:pin2]
        options[:state2] == :low ? options[:pin2].expect_lo : options[:pin2].expect_hi
        cc "Check if #{options[:pin2].name} is #{options[:state2] == :low ? 'low' : 'high'}"
      end
      cycle
      pin.dont_care
      options[:pin2].dont_care if options[:pin2]
    end
  end
end

#memory_test(options = {}) ⇒ Object

  • J750 Specific *

Generates a single MTO opcode line for J750

Codes implemented: xa load_preset, xa inc, ya load_preset, ya inc, stv_m0, stv_m1, stv_c



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 204

def memory_test(options = {})
  options = {
    gen_vector:          true,                 # Default generate vector not just MTO opcode
    init_counter_x:      false,            # initialize counter X
    inc_counter_x:       false,             # increment counter X
    init_counter_y:      false,            # initialize counter X
    inc_counter_y:       false,             # increment counter X
    capture_vector:      false,            # capture vector to memory using all mem types
    capture_vector_mem0: false,       # capture vector to memory type 0, here for J750 will be stv_m0
    capture_vector_mem1: false,       # capture vector to memory type 1, here for J750 will be stv_m1
    capture_vector_mem2: false,       # capture vector to memory type 2, here for J750 will be stv_c
    pin:                 false,                       # pin on which to drive or expect data, pass pin object here!
    pin_data:            false,                  # pin data (:none, :drive, :expect)
  }.merge(options)

  mto_opcode = ''

  if options[:init_counter_x]
    mto_opcode += ' xa load_preset'
  end
  if options[:inc_counter_x]
    mto_opcode += ' xa inc'
  end
  if options[:init_counter_y]
    mto_opcode += ' ya load_preset'
  end
  if options[:inc_counter_y]
    mto_opcode += ' ya inc'
  end
  if options[:capture_vector]
    mto_opcode += ' stv_m0 stv_m1 stv_c'
  end
  if options[:capture_vector_mem0]
    mto_opcode += ' stv_m0'
  end
  if options[:capture_vector_mem1]
    mto_opcode += ' stv_m1'
  end
  if options[:capture_vector_mem2]
    mto_opcode += ' stv_c'
  end

  unless mto_opcode.eql?('')
    mto_opcode = '(mto:' + mto_opcode + ')'
  end

  if options[:gen_vector]
    if options[:pin]
      case options[:pin_data]
        when :drive
          # store current pin state
          cur_pin_state = options[:pin].state.to_sym
          options[:pin].drive_mem
        when :expect
          # store current pin state
          cur_pin_state = options[:pin].state.to_sym
          options[:pin].expect_mem
      end
    end
    cycle(microcode: "#{mto_opcode}")
    if options[:pin]
      # restore previous pin state
      case options[:pin_data]
        when :drive
          options[:pin].state = cur_pin_state
        when :expect
          options[:pin].state = cur_pin_state
      end
    end
  else
    microcode "#{mto_opcode}"
  end
end

#parser(prog_dir = Origen.config.test_program_output_directory) ⇒ Object

Main accessor to all content parsed from existing test program sheets found in the supplied directory or in Origen.config.test_program_output_directory



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 59

def parser(prog_dir = Origen.config.test_program_output_directory)
  unless prog_dir
    fail 'You must supply the directory containing the test program sheets, or define it via Origen.config.test_program_output_directory'
  end
  @parser ||= IGXLBasedTester::Parser.new
  @parsed_dir ||= false
  if @parsed_dir != prog_dir
    @parser.parse(prog_dir)
    @parsed_dir = prog_dir
  end
  @parser
end

An internal method called by Origen to generate the pattern footer



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 522

def pattern_footer(options = {})
  options = {
    subroutine_pat: false,
    end_in_ka:      false,
    end_with_halt:  false,
    end_module:     true
  }.merge(options)
  $tester.align_to_last
  # cycle(:microcode => "#{$dut.end_of_pattern_label}:") if $dut.end_of_pattern_label
  if options[:end_in_ka]
    $tester.cycle microcode: 'keep_alive'
  else
    if options[:end_with_halt]
      $tester.cycle microcode: 'halt'
    else
      if options[:end_module]
        $tester.cycle microcode: 'end_module' unless options[:subroutine_pat]
      else
        $tester.cycle
      end
    end
  end
  microcode '}'
end

#pattern_header(options = {}) {|pin_list| ... } ⇒ Object

An internal method called by Origen Pattern Create to create the pattern header

Yields:

  • (pin_list)


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 451

def pattern_header(options = {})
  options = {
    instruments:    {},            # Provide instruments here if desired as a hash (e.g. "mto" => "dgen_2bit")
    subroutine_pat: false,
    svm_only:       true,          # Whether 'svm_only' can be specified
    group:          false,            # If true the end pattern is intended to run within a pattern group
    high_voltage:   false,         # Supply a pin name here to declare it as an HV instrument (not yet defined)
    freq_counter:   false,     # Supply a pin name here to declare it as a frequency counter
    memory_test:    false,      # If true, define 2-bit MTO DGEN as instrument
  }.merge(options)

  if level_period?
    microcode "import tset #{min_period_timeset.name};"
  else
    called_timesets.each do |timeset|
      microcode "import tset #{timeset.name};"
    end
  end
  unless options[:group]    # Withhold imports for pattern groups, is this correct?
    called_subroutines.each do |sub_name|
      # Don't import any called subroutines that are declared in the current pattern
      microcode "import svm_subr #{sub_name};" unless local_subroutines.include?(sub_name)
    end
  end

  # If memory test, then add to instruments hash
  if options[:memory_test]
    options[:instruments].merge!('mto' => 'dgen_2bit')
  end

  if options[:svm_only]
    microcode "svm_only_file = #{options[:subroutine_pat] ? 'yes' : 'no'};"
  end

  microcode "opcode_mode = #{@opcode_mode};"
  microcode "digital_inst = #{options[:digital_inst]};" if options[:digital_inst]
  microcode 'compressed = yes;' # if $dut.gzip_patterns

  # Take care of any instruments
  if options[:instruments].length > 0
    microcode 'instruments = {'
    options[:instruments].each do |instrument, setting|
      if "#{setting}" == 'nil'
        microcode "               #{instrument};"
      else
        microcode "               #{instrument}:#{setting};"
      end
    end
    microcode '}'
  end

  options[:high_voltage] = @use_hv_pin
  microcode "pin_setup = {#{options[:high_voltage]} high_voltage;}" if options[:high_voltage]
  microcode "pin_setup = {#{options[:freq_counter]} freq_count;}" if options[:freq_counter]
  microcode ''

  pin_list = ordered_pins.map(&:name).join(', ')

  # here indicate pattern header specific stuff
  yield pin_list
  if ordered_pins.size > 0
    max_pin_name_length = ordered_pins.map(&:name).max { |a, b| a.length <=> b.length }.length
    pin_widths = ordered_pins.map { |p| p.size - 1 }

    max_pin_name_length.times do |i|
      cc((' ' * 93) + ordered_pins.map.with_index { |p, x| ((p.name[i] || ' ') + ' ' * pin_widths[x]).gsub('_', '-') }.join(' '))
    end
  end
end

#push_microcode(code) ⇒ Object Also known as: microcode

Override this to force the formatting to match the v1 J750 model (easier diffs)



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 577

def push_microcode(code) # :nodoc:
  stage.store(code.ljust(65) + ''.ljust(31))
end

#repeat_previousObject

All vectors generated with the supplied block will have all pins set to the repeat previous state. Any pins that are changed state within the block will still update to the supplied value.

Example

# All pins except invoke will be assigned the repeat previous code
# in the generated vector. On completion of the block they will
# return to their previous state, except for invoke which will
# retain the value assigned within the block.
$tester.repeat_previous do
    $top.pin(:invoke).drive(1)
    $tester.cycle
end


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 594

def repeat_previous
  pinmap = Origen.pin_bank.pins
  pinmap.each { |id, pin| pin.repeat_previous = true }
  yield
  pinmap.each { |id, pin| pin.repeat_previous = false }
end

#set_code(code) ⇒ Object

  • J750 Specific *

Set a readcode.

Use the set an explicit readcode for communicating with the tester. This method will generate an additional vector.

Examples

$tester.set_code(55)


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 395

def set_code(code)
  cycle(microcode: "set_code #{code}")
end

#set_flag(options = {}) ⇒ Object



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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 618

def set_flag(options = {})
  options = { flagnum: 4,      # default flag to use
          }.merge(options)

  if options[:flagnum] > @flags.length
    abort "ERROR! Invalid flag value passed to 'set_flag' method!\n"
  end
  flagname = @flags[options[:flagnum] - 1]
  update_vector(microcode: "#{@microcode[:set_flag]}(#{flagname})")
end

#start_subroutine(name) ⇒ Object

Start a subroutine.

Generates a global subroutine label. Global is used to adhere to the best practice of containing all subroutines in dedicated patterns, e.g. global_subs.atp

Examples

$tester.start_subroutine("wait_for_done")
< generate your subroutine vectors here >
$tester.end_subroutine


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 149

def start_subroutine(name)
  local_subroutines << name.to_s.chomp unless local_subroutines.include?(name.to_s.chomp) || @inhibit_vectors
  microcode "global subr #{name}:"
end

#store(*pins) ⇒ Object Also known as: to_hram, capture

Capture a vector to the tester HRAM.

This method applies a store vector (stv) opcode to the previous vector, note that is does not actually generate a new vector.

Sometimes when generating vectors within a loop you may want to apply a stv opcode retrospectively to a previous vector, passing in an offset option will allow you to do this.

On J750 the pins argument is ignored since the tester only supports whole vector capture.

Examples:

$tester.cycle                # This is the vector you want to capture
$tester.store                # This applies the STV opcode

$tester.cycle                # This one gets stored
$tester.cycle
$tester.cycle
$tester.store(:offset => -2) # Just realized I need to capture that earlier vector


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 91

def store(*pins)
  options = pins.last.is_a?(Hash) ? pins.pop : {}
  options = { offset: 0
            }.merge(options)
  update_vector microcode: 'stv', offset: options[:offset]
end

#store_next_cycle(*pins) ⇒ Object Also known as: store!

Capture the next vector generated to HRAM

This method applies a store vector (stv) opcode to the next vector to be generated, note that is does not actually generate a new vector.

On J750 the pins argument is ignored since the tester only supports whole vector capture.

Examples:

$tester.store_next_cycle
$tester.cycle                # This is the vector that will be captured


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# File 'lib/origen_testers/igxl_based_tester/base.rb', line 110

def store_next_cycle(*pins)
  options = pins.last.is_a?(Hash) ? pins.pop : {}
  options = {
  }.merge(options)
  preset_next_vector microcode: 'stv'
end