Class: OrigenTesters::Test::DUT

Inherits:
Object
  • Object
show all
Includes:
Origen::TopLevel, OrigenARMDebug, OrigenJTAG
Defined in:
lib/origen_testers/test/dut.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ DUT

Returns a new instance of DUT.



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# File 'lib/origen_testers/test/dut.rb', line 14

def initialize(options = {})
  add_pin :tclk
  add_pin :tdi
  add_pin :tdo
  add_pin :tms

  add_reg32 :testme32, 0x007a do
    bits 31..16, :portB
    bits 15..8,  :portA
    bits 1,      :done
    bits 0,      :enable
  end
  @hv_supply_pin = 'VDDHV'
  @lv_supply_pin = 'VDDLV'
  @blocks = [Block.new(0, self), Block.new(1, self), Block.new(2, self)]
end

Instance Attribute Details

#blocks ⇒ Object

Simple DUT using Nexus interface



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# File 'lib/origen_testers/test/dut.rb', line 6

def blocks
  @blocks
end

#hv_supply_pin ⇒ Object

Returns the value of attribute hv_supply_pin.



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# File 'lib/origen_testers/test/dut.rb', line 7

def hv_supply_pin
  @hv_supply_pin
end

#lv_supply_pin ⇒ Object

Returns the value of attribute lv_supply_pin.



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# File 'lib/origen_testers/test/dut.rb', line 8

def lv_supply_pin
  @lv_supply_pin
end

Instance Method Details

#execute(options = {}) ⇒ Object 



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# File 'lib/origen_testers/test/dut.rb', line 43

def execute(options = {})
  options = { define: false,          # whether to define subr or call it
              name:   'executefunc1'
          }.merge(options)

  if options[:define]
    # define subroutine
    $tester.start_subroutine(options[:name])
    $tester.cycle
    $tester.end_subroutine
    $tester.cycle
  else
    # call subroutine
    $tester.cycle
    $tester.call_subroutine(options[:name])
    $tester.cycle
  end
end

#find_block_by_id(id) ⇒ Object 



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# File 'lib/origen_testers/test/dut.rb', line 179

def find_block_by_id(id)
  @blocks.find { |block| block.id == id }
end

#handshake(options = {}) ⇒ Object 



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# File 'lib/origen_testers/test/dut.rb', line 139

def handshake(options = {})
  options = {
    define: false,          # whether to define subr or call it
  }.merge(options)

  if options[:define]
    $tester.start_subroutine('handshake')
    $tester.handshake(readcode: 100)
    $tester.cycle
    $tester.cycle
    $tester.cycle
    $tester.end_subroutine
  else
    $tester.cycle
    $tester.call_subroutine('handshake')
  end
end

#has_margin0_bug? ⇒ Boolean

dummy flag to check for a particular design bug for this DUT

Returns:

  • (Boolean) 


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# File 'lib/origen_testers/test/dut.rb', line 175

def has_margin0_bug?
  false
end

#match(options = {}) ⇒ Object

Match loop functionality



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# File 'lib/origen_testers/test/dut.rb', line 63

def match(options = {})
  options = { type:        :match_pin,    # whether to match DONE bit in register or match pin
              # :match_done
              # :match_2pins
              delay_in_us: 5,           # match loop delay
              define:      false,       # whether to define subr or call it
              subr_name:   false,       # default use match type as subr name
          }.merge(options)

  subr_name = options[:subr_name] ? options[:subr_name] : options[:type].to_s

  if options[:define]
    $tester.start_subroutine(subr_name)
    $tester.cycle
    if options[:type] == :match_done

      # Match DONE bit in register
      $tester.wait(match:                 true,
                   time_in_us:            options[:delay_in_us],
                   global_loops:          true,
                   check_for_fails:       true,
                   force_fail_on_timeout: true,
                   clr_fail_post_match:   true,
                   manual_stop:           true) do
        # Match on reading done bit
        reg(:testme32).bits(:done).write(1)
        reg(:testme32).bits(:done).read!
      end
    elsif options[:type] == :match_pin
      # Match on TDO pin state
      $tester.wait(match:                 true,
                   pin:                   pin(:tdo),
                   state:                 :high,
                   time_in_us:            options[:delay_in_us],
                   global_loops:          true,
                   check_for_fails:       true,
                   force_fail_on_timeout: true,
                   clr_fail_post_match:   true,
                   manual_stop:           true)
    elsif options[:type] == :match_2pins
      # Match on TDO pin state
      $tester.wait(match:                 true,
                   pin:                   pin(:tdo),
                   state:                 :high,
                   pin2:                  pin(:tms),
                   state2:                :high,
                   time_in_us:            options[:delay_in_us],
                   global_loops:          true,
                   check_for_fails:       true,
                   force_fail_on_timeout: true,
                   clr_fail_post_match:   true,
                   manual_stop:           true)
    elsif options[:type] == :multiple_entries
      # Match on TDO pin state, with multiple subr entry points
      $tester.wait(match:                 true,
                   pin:                   pin(:tdo),
                   state:                 :high,
                   time_in_us:            options[:delay_in_us],
                   global_loops:          true,
                   multiple_entries:      true,
                   check_for_fails:       true,
                   force_fail_on_timeout: true,
                   clr_fail_post_match:   true,
                   manual_stop:           true)
    end
    $tester.cycle
    $tester.end_subroutine
    $tester.cycle
  else
    # call subroutine
    $tester.cycle
    $tester.call_subroutine(subr_name)
    $tester.cycle
  end
end

#memory_test(options = {}) ⇒ Object 



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# File 'lib/origen_testers/test/dut.rb', line 157

def memory_test(options = {})
  options = {
  }.merge(options)

  $tester.memory_test(inc_counter_x: true, gen_vector: true)

  $tester.memory_test(inc_counter_y: true, gen_vector: true)

  $tester.memory_test(init_counter_x: true)

  $tester.memory_test(inc_counter_x: true, init_counter_y: true)

  $tester.memory_test(inc_counter_y: true, capture_vector: true)

  $tester.memory_test(pin: pin(:tdo), pin_data: :expect)
end

#read_register(reg, options = {}) ⇒ Object 



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# File 'lib/origen_testers/test/dut.rb', line 39

def read_register(reg, options = {})
  arm_debug.write_register(reg, options)
end

#startup(options) ⇒ Object 



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# File 'lib/origen_testers/test/dut.rb', line 31

def startup(options)
  $tester.set_timeset('tp0', 60)
end

#write_register(reg, options = {}) ⇒ Object 



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# File 'lib/origen_testers/test/dut.rb', line 35

def write_register(reg, options = {})
  arm_debug.write_register(reg, options)
end