Class: OrigenNexus::DUT

Inherits:
Object
  • Object
show all
Includes:
Origen::Callbacks, Origen::Pins, Origen::Registers, OrigenNexus
Defined in:
lib/origen_nexus/dut.rb

Overview

This is a dummy DUT model that provides an example of how the Nexus module should be included

Constant Summary

NEXUS_CONFIG = 
{
  tclk_format:   :rh,
  tclk_multiple: 1
}

Instance Method Summary (collapse)

Methods included from OrigenNexus

#nexus

Constructor Details

- (DUT) initialize(options = {})

Returns a new instance of DUT



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# File 'lib/origen_nexus/dut.rb', line 17

def initialize(options = {})
  NEXUS_CONFIG[:tclk_format] = options[:tclk_format] if options[:tclk_format]
  NEXUS_CONFIG[:tclk_multiple] = options[:tclk_multiple] if options[:tclk_multiple]

  # Any DUT that uses Nexus must declare these pins
  # (or an alias)

  # OnCE Debug Port pins
  add_pin :tclk
  add_pin :tms
  add_pin :tdi
  add_pin :tdo

  # Define dummy register to use to test Nexus
  # driver for test purposes
  reg :testme32, 0x007a, size: 32 do
    bit 31..16, :portB
    bit 15..8,  :portA
    bit 0,      :enable
  end

  reg :status32, 0x007b, size: 32 do
    bit 31..16,  :fail_vals, writable: false
    bit 0,       :error_bit, writable: false
  end

  reg :testme16, 0x007c, size: 16 do
    bit 15..8, :portD
    bit 7..0,  :portC
  end
end

Instance Method Details

- (Object) read_register(reg, options = {}) 



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# File 'lib/origen_nexus/dut.rb', line 53

def read_register(reg, options = {})
  # $tester.dont_compress = true
  nexus.read_register(reg, options)
  # $tester.dont_compress = false
end

- (Object) startup(_options) 



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# File 'lib/origen_nexus/dut.rb', line 49

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

- (Object) tclk_format 



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# File 'lib/origen_nexus/dut.rb', line 65

def tclk_format
  NEXUS_CONFIG[:tclk_format]
end

- (Object) tclk_multiple 



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# File 'lib/origen_nexus/dut.rb', line 69

def tclk_multiple
  NEXUS_CONFIG[:tclk_multiple]
end

- (Object) write_register(reg, options = {}) 



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# File 'lib/origen_nexus/dut.rb', line 59

def write_register(reg, options = {})
  # $tester.dont_compress = true
  nexus.write_register(reg, options)
  # $tester.dont_compress = false
end