Ace_Env - Test Flow Package presenter name, Ace Verification

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Ace_Env - Test Flow Package presenter name,
Ace Verification
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Abstract

• Background
• Specman comes with a plethora of method hooks
  these include
• Pre-generate, generate, start, init, run,
  finalize, check, quit etc.
• Specman does not include hooks or infrastructure
  for during the run
• Ace_env
• A series of built-in method and tcm-hooks which
  enhance the existing environment
• Init_signals, Reset, Init_Dut, Scenario, Idle,
  Post_test_check etc.
• Recursive for all Ace_envs instantiated under it

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Ace_Env Testflow
Flow
Intuitive

• m_show_test_modes()
• t_init_signals()
• t_reset_dut()
• t_init_dut()
• t_start_flow()
• t_scenario()
• m_wait_until_idle()
• t_post_test_checks()
• t_finalize()
• t_stop_run()

Recursive
Designed
Easy
Hooks
Clear
Standard
Skeleton
Template
Elegant
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Main Features of the Package

• Standard way to sequence test flows
• Standard way incorporate sub-environments into a
  single environment
• Simulating Common flow behavior
• Allows hooks for all standard testing
• Allows tests and environments to be standard
• Standardized eRM compliant modeling

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Advantages

• Easier integration
• Codet_init_signal(), t_reset_dut(), and
  t_init_dut() and you can already see a live
  design
• Standard way to work
• All envs have the same 10 methods
• Built-in hooks based on multiple project
  experience

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Using AceEnv Functions

• All functions are easy to use
• Used in all the environment
• Used by tests as test hook (All tests have the
  same look)

• Test.e example
• extend My_top_env
• t_init_dut() _at_clk is also
• write_reg(start_rt, 0x1234)
• t_scenario() _at_clk is also
• sync _at_rt_done
• read_reg(rt_status)

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Ace Env Example
Sys
TXH3000
CPU Sub-System
Mac
PhyA
PhyB
PTX
PRX
Memory
Packet Driver
PBF
Network
Regular Units
Any Envs
Ace Envs
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Ace Env Example Cont.

• The top Ace Env runs the test flow
• Package automatically knows whos the top
• Package automatically knows who its sons are
• For each method the test flow executes the method
  and then executes the methods in each of its
  sons
• Package allows disabling of select childrens
  functions by constraints

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Availability

• Package is available for download at
• http//www.aceverification.com/reference.htm
• Under Component Sharing

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Summary

• A healthy test flow provides easier overall
  planning
• Structure for the environment
• Standard environments
• Block -gt Cluster -gt Full-Chip reuse
• Standard test interface
• Write your own, or use the Ace-Env shareware