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.

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]

  instantiate_registers(options)
  instantiate_pins(options)
  sub_block :jtag, { class_name: 'OrigenJTAG::Driver' }.merge(@jtag_config)
  if options[:extra_port]
    sub_block :jtag2, { class_name: 'OrigenJTAG::Driver', tck_pin: pin(:tck_2), tdi_pin: pin(:tdi_2), tdo_pin: pin(:tdo_2), tms_pin: pin(:tms_2) }.merge(@jtag_config)
  end
end

Instance Attribute Details

#jtag_config ⇒ Object (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_state ⇒ Object

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 52

def instantiate_pins(options = {})
  if options[:invalid_pins]
    add_pin :tck
  else
    add_pin :tclk
  end
  add_pin :tdi
  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 36

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_format ⇒ Object

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_multiple ⇒ Object

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_vals ⇒ Object

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_cycle ⇒ Object

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_strobe ⇒ Object

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 duing 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