Class: Origen::Tester::J750
- Inherits:
-
Object
- Object
- Origen::Tester::J750
- Includes:
- Origen::Tester, Files, Parser
- Defined in:
- lib/origen/tester/j750/j750.rb,
lib/origen/tester/j750/files.rb,
lib/origen/tester/j750/parser.rb,
lib/origen/tester/j750/generator.rb,
lib/origen/tester/j750/parser/flow.rb,
lib/origen/tester/j750/parser/flows.rb,
lib/origen/tester/j750/generator/flow.rb,
lib/origen/tester/j750/parser/dc_spec.rb,
lib/origen/tester/j750/parser/ac_spec.rb,
lib/origen/tester/j750/parser/timeset.rb,
lib/origen/tester/j750/parser/dc_specs.rb,
lib/origen/tester/j750/generator/patset.rb,
lib/origen/tester/j750/parser/flow_line.rb,
lib/origen/tester/j750/generator/patsets.rb,
lib/origen/tester/j750/generator/patgroup.rb,
lib/origen/tester/j750/parser/pattern_set.rb,
lib/origen/tester/j750/parser/pattern_sets.rb,
lib/origen/tester/j750/generator/flow_line.rb,
lib/origen/tester/j750/parser/descriptions.rb,
lib/origen/tester/j750/generator/patgroups.rb,
lib/origen/tester/j750/parser/test_instance.rb,
lib/origen/tester/j750/parser/test_instances.rb,
lib/origen/tester/j750/generator/test_instance.rb,
lib/origen/tester/j750/generator/test_instances.rb,
lib/origen/tester/j750/generator/test_instance_group.rb
Overview
Tester model to generate .atp patterns for the Teradyne J750
Basic Usage
$tester = Origen::Tester::J750.new
$tester.cycle # Generate a vector
Many more methods exist to generate J750 specific micro-code, see below for details.
Also note that this class inherits from the base Tester class and so all methods described there are also available.
Direct Known Subclasses
Defined Under Namespace
Modules: Files, Generator Classes: Parser
Instance Attribute Summary (collapse)
-
- (Object) software_version
Returns the value of attribute software_version.
-
- (Object) use_hv_pin
Returns the value of attribute use_hv_pin.
Attributes included from API
#comment_level, #generating, #includes, #inhibit_comments, #inhibit_vectors
Class Method Summary (collapse)
Instance Method Summary (collapse)
-
- (Object) branch_to(label)
(also: #branch)
Branch execution to the given point.
-
- (Object) call_match
Call a match loop.
-
- (Object) call_subroutine(name, options = {})
Call a subroutine.
-
- (Object) called_subroutines
Returns an array of subroutines called while generating the current pattern.
-
- (Object) enable_flag(options = {})
-
J750 Specific *.
-
-
- (Object) end_subroutine(cond = false)
End a subroutine.
- - (Object) flows
-
- (Object) format_vector(vec)
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.
-
- (Object) freq_count(pin, options = {})
Do a frequency measure.
-
- (Object) handshake(options = {})
Handshake with the tester.
- - (Object) ignore_fails(*pins)
-
- (J750) initialize
constructor
Returns a new J750 instance, normally there would only ever be one of these assigned to the global variable such as $tester by your target: $tester = J750.new.
- - (Boolean) j750?
-
- (Object) label(name, global = false)
Apply a label to the pattern.
-
- (Object) local_subroutines
Returns an array of subroutines created by the current pattern.
-
- (Object) loop_vectors(name, number_of_loops, global = false, label_first = false)
(also: #loop_vector)
Add loop to the pattern.
-
- (Object) match(pin, state, timeout, options = {})
Generates a match loop on up to two pins.
-
- (Object) match_block(timeout, options = {})
Generates a match loop based on vector condition passed in via block.
-
- (Object) memory_test(options = {})
-
J750 Specific *.
-
-
- (Object) parser(prog_dir = Origen.config.test_program_output_directory)
Main accessor to all content parsed from existing test program sheets found in the supplied directory or in Origen.config.test_program_output_directory.
-
- (Object) pattern_footer(options = {})
An internal method called by Origen to generate the pattern footer.
-
- (Object) pattern_header(options = {})
An internal method called by Origen to create the pattern header.
-
- (Object) push_microcode(code)
(also: #microcode)
Override this to force the formatting to match the v1 J750 model (easier diffs).
-
- (Object) repeat_previous
All vectors generated with the supplied block will have all pins set to the repeat previous state.
-
- (Object) set_code(code)
-
J750 Specific *.
-
-
- (Object) set_flag(options = {})
-
J750 Specific *.
-
-
- (Object) start_subroutine(name)
Start a subroutine.
-
- (Object) store(*pins)
(also: #to_hram, #capture)
Capture a vector to the tester HRAM.
-
- (Object) store_next_cycle(*pins)
Capture the next vector generated to HRAM.
Methods included from Files
Methods included from Parser
Methods included from Origen::Tester
Methods included from API
#annotate, #any_clocks_running?, #c1, #c2, #clocks_running, #comment_char, #cycle, #doc?, #generate?, #generating_pattern?, #generating_program?, #import_test_time, #inhibit_vectors_and_comments, #is_command_based?, #is_vector_based?, #j750_hpt?, #name, #pat_extension, #pattern_section, #pins_need_toggling, #pop_running_clock, #program_comment_char, #push_running_clock, #slice_repeats, #snip, #ss, #step_comment_prefix, #ultraflex?, #update_running_clocks, #v93k?
Methods included from Timing
#before_timeset_change, #called_timesets, #count, #current_period_in_ns, #current_timeset, #cycles_to_ms, #cycles_to_time, #cycles_to_ts, #cycles_to_us, #delay, #max_repeat_loop, #ms_to_cycles, #ns_to_cycles, #s_to_cycles, #set_timeset, #timeset_changed, #us_to_cycles, #wait
Methods included from VectorGenerator
#_render, #add_microcode_to_last_or_cycle, #before_write_pattern_line, #compressable_vector?, #current_pin_vals, #cycle_count, #dec_vec_count, #dont_compress, #dont_compress=, #expand_vector, #format, #format_pin_state, #get_pingroup, #inc_cycle_count, #inc_vec_count, #inhibit_pin, #inhibited_pins, #last_object, #last_vector, #multi_mode_optimize, #optimize, #ordered_pins, #ordered_pins_cache, #pingroup_map, #pipeline, #preset_next_vector, #push_comment, #push_vector, #render, #render_body, #render_footer, #render_header, #render_template, #reset_cycle_count, #stage, #track_and_format_vector, #update_pin_from_formatted_state, #update_vector, #update_vector_pin_val, #vec_count, #vector_group_size, #vector_group_size=, #with_vector_group_size
Constructor Details
- (J750) initialize
Returns a new J750 instance, normally there would only ever be one of these assigned to the global variable such as $tester by your target:
$tester = J750.new
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# File 'lib/origen/tester/j750/j750.rb', line 43 def initialize @unique_counter = 0 @max_repeat_loop = 65_535 @min_repeat_loop = 2 @pat_extension = 'atp' @active_loads = true @pipeline_depth = 34 # for extended mode is vectors, for normal mode is vector pairs (54 for J750Ex) @use_hv_pin = false # allows to use high voltage for a pin for all patterns @software_version = '3.50.40' @compress = true @support_repeat_previous = true @match_entries = 10 @name = 'j750' @program_comment_char = ['logprint', "'"] @@hpt_mode = false end |
Instance Attribute Details
- (Object) software_version
Returns the value of attribute software_version
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# File 'lib/origen/tester/j750/j750.rb', line 31 def software_version @software_version end |
- (Object) use_hv_pin
Returns the value of attribute use_hv_pin
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# File 'lib/origen/tester/j750/j750.rb', line 30 def use_hv_pin @use_hv_pin end |
Class Method Details
+ (Object) hpt_mode
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# File 'lib/origen/tester/j750/j750.rb', line 33 def self.hpt_mode @@hpt_mode end |
+ (Boolean) hpt_mode?
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# File 'lib/origen/tester/j750/j750.rb', line 36 def self.hpt_mode? @@hpt_mode end |
Instance Method Details
- (Object) branch_to(label) 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/tester/j750/j750.rb', line 669 def branch_to(label) cycle(microcode: "jump #{label}") end |
- (Object) call_match
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 a J750 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/tester/j750/j750.rb', line 628 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 |
- (Object) call_subroutine(name, options = {})
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/tester/j750/j750.rb', line 138 def call_subroutine(name, = {}) = { offset: 0 }.merge() called_subroutines << name.to_s.chomp unless called_subroutines.include?(name.to_s.chomp) || @inhibit_vectors update_vector microcode: "call #{name}", offset: [:offset] end |
- (Object) called_subroutines
Returns an array of subroutines called while generating the current pattern
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# File 'lib/origen/tester/j750/j750.rb', line 782 def called_subroutines @called_subroutines ||= [] end |
- (Object) enable_flag(options = {})
-
J750 Specific *
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# File 'lib/origen/tester/j750/j750.rb', line 163 def enable_flag( = {}) = { flagnum: 4, # which flag to enable for later checking }.merge() case [:flagnum] when 1 flagname = 'cpuA' when 2 flagname = 'cpuB' when 3 flagname = 'cpuC' when 4 flagname = 'cpuD' else abort "ERROR! Invalid flag name passed to 'enable_flag' method!\n" end update_vector(microcode: "enable(#{flagname})") end |
- (Object) end_subroutine(cond = false)
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/tester/j750/j750.rb', line 213 def end_subroutine(cond = false) if cond update_vector microcode: 'if (flag) return' else update_vector microcode: 'return' end end |
- (Object) flows
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# File 'lib/origen/tester/j750/j750.rb', line 60 def flows parser.flows end |
- (Object) format_vector(vec)
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/tester/j750/j750.rb', line 793 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 && vec.number && vec.cycle_number # comment = " // Vector #{@pattern_vectors}, Cycle #{@pattern_cycles}" # else comment = '' # end "#{microcode.ljust(65)}#{timeset.ljust(31)}#{pin_vals}#{comment}" end |
- (Object) freq_count(pin, options = {})
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/tester/j750/j750.rb', line 257 def freq_count(pin, = {}) = { readcode: false }.merge() cycle(microcode: "set_code #{[:readcode]}") if [:readcode] cycle(microcode: 'set_cpu (cpuA)') cycle(microcode: 'set_cpu (cpuA)') cycle(microcode: 'set_cpu (cpuB)') cycle(microcode: 'set_cpu (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: enable (cpuB)') cycle(microcode: 'if (flag) jump freq_loop_2') cycle(microcode: 'enable (cpuC)') cycle(microcode: 'if (flag) jump freq_loop_1') end |
- (Object) handshake(options = {})
Handshake with the tester.
Will set a cpu flag (A) and wait for it to be cleared by the tester, optionally pass in a read code to pass information to the tester.
Examples
$tester.handshake # Pass control to the tester for a measurement
$tester.handshake(:readcode => 10) # Trigger a specific action by the tester
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# File 'lib/origen/tester/j750/j750.rb', line 229 def handshake( = {}) = { readcode: false, manual_stop: false, # set a 2nd CPU flag in case 1st flag is automatically cleared }.merge() if [:readcode] cycle(microcode: "set_code #{[:readcode]}") end if [:manual_stop] cycle(microcode: 'enable (cpuB)') cycle(microcode: 'set_cpu (cpuA cpuB)') cycle(microcode: "loop_here_#{@unique_counter}: if (flag) jump loop_here_#{@unique_counter}") else cycle(microcode: 'set_cpu (cpuA)') cycle(microcode: "loop_here_#{@unique_counter}: if (cpuA) jump loop_here_#{@unique_counter}") end @unique_counter += 1 # Increment so a different label will be applied if another # handshake is called in the same pattern end |
- (Object) ignore_fails(*pins)
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# File 'lib/origen/tester/j750/j750.rb', line 834 def ignore_fails(*pins) pins.each(&:suspend) yield pins.each(&:resume) end |
- (Boolean) j750?
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# File 'lib/origen/tester/j750/j750.rb', line 840 def j750? true end |
- (Object) label(name, global = false)
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/tester/j750/j750.rb', line 644 def label(name, global = false) global_opt = (global) ? 'global ' : '' microcode global_opt + name + ':' end |
- (Object) local_subroutines
Returns an array of subroutines created by the current pattern
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# File 'lib/origen/tester/j750/j750.rb', line 787 def local_subroutines # :nodoc: @local_subroutines ||= [] end |
- (Object) loop_vectors(name, number_of_loops, global = false, label_first = false) 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/tester/j750/j750.rb', line 687 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 |
- (Object) match(pin, state, timeout, options = {})
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/tester/j750/j750.rb', line 381 def match(pin, state, timeout, = {}) = { check_for_fails: false, on_timeout_goto: false, pin2: false, state2: false, on_pin_match_goto: false, on_pin2_match_goto: false, multiple_entries: false, force_fail_on_timeout: true, global_loops: false, manual_stop: false, clr_fail_post_match: false }.merge() # Flush the pipeline first and then pass control to the program to bin out any failures # prior to entering the match loop if [:check_for_fails] if [:multiple_entries] @match_entries.times do |i| microcode "global subr match_done_#{i}:" cycle(microcode: "set_code #{i + 100}") cycle(microcode: 'jump call_tester') unless i == @match_entries - 1 end microcode 'call_tester:' else cycle(microcode: 'set_code 100') end cc 'Wait for any prior failures to propagate through the pipeline' cycle(microcode: 'pipe_minus 1') cc 'Now handshake with the tester to bin out and parts that have failed before they got here' handshake(manual_stop: [:manual_stop]) end # Now do the main match loop cc 'Start the match loop' # Calculate the loop counts for the 2 loops to appropriately hit the timeout requested inner_loop_vectors = (@pipeline_depth - 1) + 4 # num vectors in inner loop if timeout.to_f < @max_repeat_loop * inner_loop_vectors * @min_repeat_loop # Handle case for smaller timeouts (that would force small outer loop count) inner_loop_count = (timeout.to_f / (inner_loop_vectors * @min_repeat_loop)).ceil outer_loop_count = @min_repeat_loop else # Handle longer delays inner_loop_count = @max_repeat_loop outer_loop_count = (timeout.to_f / (@max_repeat_loop * inner_loop_vectors)).ceil # Will do a minimum of 1 * max_repeat_loop * (pipeline_depth-1) end global_opt = ([:global_loops]) ? 'global ' : '' microcode "#{global_opt}match_outer_loop_#{@unique_counter}:" cycle(microcode: "loopB #{outer_loop_count} ign ifc icc") microcode "#{global_opt}match_inner_loop_#{@unique_counter}:" state == :low ? pin.expect_lo : pin.expect_hi cc "Check if #{pin.name} is #{state == :low ? 'low' : 'high'} yet" cycle(microcode: "loopA #{inner_loop_count} ign ifc icc") pin.dont_care cc ' Wait for the result to propagate through the pipeline' cycle(microcode: 'pipe_minus 1 ign ifc icc') cc "Branch if #{pin.name} was #{state == :low ? 'low' : 'high'}" cycle(microcode: "if (pass) jump #{pin.name}_matched_#{@unique_counter} icc ifc") cycle(microcode: 'clr_flag (fail) icc') if [:pin2] cc "Check if #{[:pin2].name} is #{[:state2] == :low ? 'low' : 'high'} yet" [:state2] == :low ? [:pin2].expect_lo : [:pin2].expect_hi state == :low ? pin.expect_hi : pin.expect_lo # Give priority to pin 1, don't match pin 2 on this cycle # if it is really a pin 1 match cycle # Read for pin 2 and !pin 1 [:pin2].dont_care pin.dont_care cc 'Again wait for the result to propagate through the pipeline' cycle(microcode: 'pipe_minus 1 ign ifc icc') cc "Branch if #{[:pin2].name} was #{[:state2] == :low ? 'low' : 'high'}" cycle(microcode: "if (pass) jump #{[:pin2].name}_matched_#{@unique_counter} icc ifc") cycle(microcode: 'clr_flag (fail) icc') end cc 'Loop back around if time remaining' cycle(microcode: "end_loopA match_inner_loop_#{@unique_counter} icc") cycle(microcode: "end_loopB match_outer_loop_#{@unique_counter} icc") if [:force_fail_on_timeout] cc 'To get here something has gone wrong, strobe again to force a pattern failure' state == :low ? pin.expect_lo : pin.expect_hi [:state2] == :low ? [:pin2].expect_lo : [:pin2].expect_hi if [:pin2] cycle pin.dont_care [:pin2].dont_care if [:pin2] end if [:on_timeout_goto] cycle(microcode: "jump #{[:on_timeout_goto]} icc") else cycle(microcode: "jump match_loop_end_#{@unique_counter} icc") # cycle(:microcode => 'halt') end microcode "#{pin.name}_matched_#{@unique_counter}:" cycle(microcode: 'pop_loop icc') unless [:clr_fail_post_match] cycle(microcode: 'clr_fail') end if [:on_pin_match_goto] cycle(microcode: "jump #{[:on_pin_match_goto]}") end if [:pin2] microcode "#{[:pin2].name}_matched_#{@unique_counter}:" cycle(microcode: 'pop_loop icc') cycle(microcode: 'clr_fail') if [:on_pin2_match_goto] cycle(microcode: "jump #{[:on_pin2_match_goto]}") end end microcode "match_loop_end_#{@unique_counter}:" if [:clr_fail_post_match] cycle(microcode: 'clr_fail') end @unique_counter += 1 # Increment so a different label will be applied if another # handshake is called in the same pattern end |
- (Object) match_block(timeout, options = {})
Generates a match loop based on vector condition passed in via block
This method is not really intended to be called directly, rather you should call via Tester#wait:
e.g. $tester.wait(:match => true) do
reg(:status_reg).bit(:done).read(1)! # vector condition that you want to match
end
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:
-
: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_block_match_goto (“”) - Optionally supply a label to branch to when block condition is met, 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/tester/j750/j750.rb', line 523 def match_block(timeout, = {}) = { check_for_fails: false, on_timeout_goto: false, on_block_match_goto: false, multiple_entries: false, force_fail_on_timeout: true, global_loops: false, manual_stop: false, clr_fail_post_match: false }.merge() unless block_given? fail 'ERROR: block not passed to match_block!' end # Flush the pipeline first and then pass control to the program to bin out any failures # prior to entering the match loop if [:check_for_fails] if [:multiple_entries] @match_entries.times do |i| microcode "global subr match_done_#{i}:" cycle(microcode: "set_code #{i + 100}") cycle(microcode: 'jump call_tester') unless i == @match_entries - 1 end microcode 'call_tester:' else cycle(microcode: 'set_code 100') end cc 'Wait for any prior failures to propagate through the pipeline' cycle(microcode: 'pipe_minus 1') cc 'Now handshake with the tester to bin out and parts that have failed before they got here' handshake(manual_stop: [:manual_stop]) end # Now do the main match loop cc 'Start the match loop' # Calculate the loop counts for the 2 loops to appropriately hit the timeout requested inner_loop_vectors = (@pipeline_depth - 1) + 4 # num vectors in inner loop if timeout.to_f < @max_repeat_loop * inner_loop_vectors * @min_repeat_loop # Handle case for smaller timeouts (that would force small outer loop count) inner_loop_count = (timeout.to_f / (inner_loop_vectors * @min_repeat_loop)).ceil outer_loop_count = @min_repeat_loop else # Handle longer delays inner_loop_count = @max_repeat_loop outer_loop_count = (timeout.to_f / (@max_repeat_loop * inner_loop_vectors)).ceil # Will do a minimum of 1 * max_repeat_loop * (pipeline_depth-1) end global_opt = ([:global_loops]) ? 'global ' : '' microcode "#{global_opt}match_outer_loop_#{@unique_counter}:" cycle(microcode: "loopB #{outer_loop_count} ign ifc icc") microcode "#{global_opt}match_inner_loop_#{@unique_counter}:" cycle(microcode: "loopA #{inner_loop_count} ign ifc icc") cc 'Check if block condition met' yield cc ' Wait for the result to propagate through the pipeline' cycle(microcode: 'pipe_minus 1 ign ifc icc') cc 'Branch if block condition met' cycle(microcode: "if (pass) jump block_matched_#{@unique_counter} icc ifc") cycle(microcode: 'clr_flag (fail) icc') cc 'Loop back around if time remaining' cycle(microcode: "end_loopA match_inner_loop_#{@unique_counter} icc") cycle(microcode: "end_loopB match_outer_loop_#{@unique_counter} icc") if [:force_fail_on_timeout] cc 'To get here something has gone wrong, check block again to force a pattern failure' yield end if [:on_timeout_goto] cycle(microcode: "jump #{[:on_timeout_goto]} icc") else cycle(microcode: "jump match_loop_end_#{@unique_counter} icc") # cycle(:microcode => 'halt') end microcode "block_matched_#{@unique_counter}:" cycle(microcode: 'pop_loop icc') unless [:clr_fail_post_match] cycle(microcode: 'clr_fail') end if [:on_block_match_goto] cycle(microcode: "jump #{[:on_block_match_goto]}") end microcode "match_loop_end_#{@unique_counter}:" if [:clr_fail_post_match] cycle(microcode: 'clr_fail') end @unique_counter += 1 # Increment so a different label will be applied if another # handshake is called in the same pattern end |
- (Object) memory_test(options = {})
-
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/tester/j750/j750.rb', line 282 def memory_test( = {}) = { 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() mto_opcode = '' if [:init_counter_x] mto_opcode += ' xa load_preset' end if [:inc_counter_x] mto_opcode += ' xa inc' end if [:init_counter_y] mto_opcode += ' ya load_preset' end if [:inc_counter_y] mto_opcode += ' ya inc' end if [:capture_vector] mto_opcode += ' stv_m0 stv_m1 stv_c' end if [:capture_vector_mem0] mto_opcode += ' stv_m0' end if [:capture_vector_mem1] mto_opcode += ' stv_m1' end if [:capture_vector_mem2] mto_opcode += ' stv_c' end unless mto_opcode.eql?('') mto_opcode = '(mto:' + mto_opcode + ')' end if [:gen_vector] if [:pin] case [:pin_data] when :drive # store current pin state cur_pin_state = [:pin].state.to_sym [:pin].drive_mem when :expect # store current pin state cur_pin_state = [:pin].state.to_sym [:pin].expect_mem end end cycle(microcode: "#{mto_opcode}") if [:pin] # restore previous pin state case [:pin_data] when :drive [:pin].state = cur_pin_state when :expect [:pin].state = cur_pin_state end end else microcode "#{mto_opcode}" end end |
- (Object) parser(prog_dir = Origen.config.test_program_output_directory)
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/tester/j750/j750.rb', line 66 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 ||= J750::Parser.new @parsed_dir ||= false if @parsed_dir != prog_dir @parser.parse(prog_dir) @parsed_dir = prog_dir end @parser end |
- (Object) pattern_footer(options = {})
An internal method called by Origen to generate the pattern footer
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# File 'lib/origen/tester/j750/j750.rb', line 762 def ( = {}) = { subroutine_pat: false, end_in_ka: false, end_with_halt: false }.merge() # cycle(:microcode => "#{$soc.end_of_pattern_label}:") if $soc.end_of_pattern_label if [:end_in_ka] $tester.cycle microcode: 'keep_alive' else if [:end_with_halt] $tester.cycle microcode: 'halt' else $tester.cycle microcode: 'end_module' unless [:subroutine_pat] end end microcode '}' end |
- (Object) pattern_header(options = {})
An internal method called by Origen to create the pattern header
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# File 'lib/origen/tester/j750/j750.rb', line 714 def pattern_header( = {}) = { subroutine_pat: false, 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 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() called_timesets.each do |timeset| microcode "import tset #{timeset.name};" end unless [: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 # Should implement this more like @instruments.each... if [:memory_test] microcode 'instruments = {' microcode ' mto:dgen_2bit;' microcode '}' end microcode "svm_only_file = #{[:subroutine_pat] ? 'yes' : 'no'};" microcode 'opcode_mode = extended;' microcode 'compressed = yes;' # if $soc.gzip_patterns [:high_voltage] = @use_hv_pin microcode "pin_setup = {#{[:high_voltage]} high_voltage;}" if [:high_voltage] microcode "pin_setup = {#{[:freq_counter]} freq_count;}" if [:freq_counter] microcode '' pin_list = ordered_pins.map do |p| if Origen.app.pin_pattern_order.include?(p.id) p.id # specified name overrides pin name else p.name end end.join(', ') microcode "vector ($tset, #{pin_list})" microcode '{' unless [:subroutine_pat] microcode 'start_label pattern_st:' end end |
- (Object) push_microcode(code) 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/tester/j750/j750.rb', line 810 def push_microcode(code) # :nodoc: stage.store(code.ljust(65) + ''.ljust(31)) end |
- (Object) repeat_previous
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/tester/j750/j750.rb', line 827 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 |
- (Object) set_code(code)
-
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/tester/j750/j750.rb', line 658 def set_code(code) cycle(microcode: "set_code #{code}") end |
- (Object) set_flag(options = {})
-
J750 Specific *
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# File 'lib/origen/tester/j750/j750.rb', line 185 def set_flag( = {}) = { flagnum: 4, # which flag to set }.merge() case [:flagnum] when 1 flagname = 'cpuA' when 2 flagname = 'cpuB' when 3 flagname = 'cpuC' when 4 flagname = 'cpuD' else abort "ERROR! Invalid flag name passed to 'set_flag' method!\n" end update_vector(microcode: "set_cpu(#{flagname})") end |
- (Object) start_subroutine(name)
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/tester/j750/j750.rb', line 155 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 |
- (Object) store(*pins) Also known as: to_hram, capture
Capture a vector to the tester HRAM.
This method applys 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.
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# File 'lib/origen/tester/j750/j750.rb', line 98 def store(*pins) = pins.last.is_a?(Hash) ? pins.pop : {} = { offset: 0 }.merge() update_vector microcode: 'stv', offset: [:offset] end |
- (Object) store_next_cycle(*pins)
Capture the next vector generated to HRAM
This method applys 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.
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# File 'lib/origen/tester/j750/j750.rb', line 117 def store_next_cycle(*pins) = pins.last.is_a?(Hash) ? pins.pop : {} = { }.merge() preset_next_vector microcode: 'stv' end |