Class: OrigenJTAGDev::NewStyle

Inherits:
Object
  • Object
show all
Includes:
Origen::TopLevel
Defined in:
lib/origen_jtag_dev/new_style.rb

Overview

This is a dummy DUT model which is used to instantiate and test the JTAG locally during development.

It is not included when this library is imported.

Direct Known Subclasses

Serial

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ NewStyle

Returns a new instance of NewStyle.


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# File 'lib/origen_jtag_dev/new_style.rb', line 12

def initialize(options = {})
  @jtag_config = {
    verbose:         true,
    tclk_format:     :rh,
    tclk_multiple:   1,
    tdo_strobe:      :tclk_high,
    tdo_store_cycle: 0,
    init_state:      :unknown
  }
  @jtag_config[:tclk_format] = options[:tclk_format] if options[:tclk_format]
  @jtag_config[:tclk_multiple] = options[:tclk_multiple] if options[:tclk_multiple]
  @jtag_config[:tdo_strobe] = options[:tdo_strobe] if options[:tdo_strobe]
  @jtag_config[:tdo_store_cycle] = options[:tdo_store_cycle] if options[:tdo_store_cycle]
  @jtag_config[:init_state] = options[:init_state] if options[:init_state]
  @jtag_config[:tclk_vals] = options[:tclk_vals] if options[:tclk_vals]
  @jtag_config[:cycle_callback] = options[:cycle_callback] if options[:cycle_callback]

  instantiate_registers(options)
  instantiate_pins(options)
  sub_block :jtag, { class_name: 'OrigenJTAG::Driver' }.merge(@jtag_config)
  if options[:extra_port]
    # Test supplying both pin IDs (recommended) and pin objects (legacy)
    sub_block :jtag2, { class_name: 'OrigenJTAG::Driver', tck_pin: :tck_2, tdi_pin: :tdi_2, tdo_pin: pin(:tdo_2), tms_pin: pin(:tms_2) }.merge(@jtag_config)
  end
end

Instance Attribute Details

#jtag_configObject (readonly)

Returns the value of attribute jtag_config


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# File 'lib/origen_jtag_dev/new_style.rb', line 10

def jtag_config
  @jtag_config
end

Instance Method Details

#init_stateObject

Getter for top-level init_state setting


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# File 'lib/origen_jtag_dev/new_style.rb', line 100

def init_state
  @jtag_config[:init_state]
end

#instantiate_pins(options = {}) ⇒ Object


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# File 'lib/origen_jtag_dev/new_style.rb', line 54

def instantiate_pins(options = {})
  add_pin :tclk
  unless options[:invalid_pins]
    add_pin :tdi
  end
  add_pin :tdo
  add_pin :tms

  if options[:extra_port]
    add_pin :tck_2
    add_pin :tdi_2
    add_pin :tdo_2
    add_pin :tms_2
  end
end

#instantiate_registers(options = {}) ⇒ Object


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# File 'lib/origen_jtag_dev/new_style.rb', line 38

def instantiate_registers(options = {})
  reg :test16, 0x0012, size: 16 do |reg|
    reg.bit 15..8, :bus
    reg.bit 0, :bit
  end

  reg :test32, 0x0014, size: 32 do |reg|
    reg.bit 31..16, :bus
    reg.bit 0, :bit
  end

  reg :full16, 0x0012, size: 16 do |reg|
    reg.bit 15..0, :data
  end
end

#startup(options = {}) ⇒ Object


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# File 'lib/origen_jtag_dev/new_style.rb', line 70

def startup(options = {})
  tester.set_timeset('nvmbist', 40)
end

#tclk_formatObject

Getter for top-level tclk_format setting


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# File 'lib/origen_jtag_dev/new_style.rb', line 75

def tclk_format
  @jtag_config[:tclk_format]
end

#tclk_multipleObject

Getter for top-level tclk_multiple setting


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# File 'lib/origen_jtag_dev/new_style.rb', line 80

def tclk_multiple
  @jtag_config[:tclk_multiple]
end

#tclk_valsObject

Getter for top-level tclk_vals setting


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# File 'lib/origen_jtag_dev/new_style.rb', line 85

def tclk_vals
  @jtag_config[:tclk_vals]
end

#tdo_store_cycleObject

Getter for top-level tdo_store_cycle setting


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# File 'lib/origen_jtag_dev/new_style.rb', line 95

def tdo_store_cycle
  @jtag_config[:tdo_store_cycle]
end

#tdo_strobeObject

Getter for top-level tdo_strobe setting


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# File 'lib/origen_jtag_dev/new_style.rb', line 90

def tdo_strobe
  @jtag_config[:tdo_strobe]
end

#update_jtag_config(cfg, val) ⇒ Object

Wouldn't want to do this in reality, but allows some flexibility during gem testing


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# File 'lib/origen_jtag_dev/new_style.rb', line 105

def update_jtag_config(cfg, val)
  if @jtag_config.key?(cfg)
    @jtag_config[cfg] = val
  else
    fail "#{cfg} not a part of @jtag_config"
  end
end