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Ace_Env - Test Flow Package presenter name, Ace Verification

Ace_Env - Test Flow Package presenter name, Ace Verification. 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

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Ace_Env - Test Flow Package presenter name, Ace Verification

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  1. Ace_Env - Test Flow Packagepresenter name, Ace Verification

  2. 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_env’s instantiated under it

  3. Ace_Env Testflow Intuitive Flow 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

  4. 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

  5. Advantages • Easier integration • Code:t_init_signal(), t_reset_dut(), and t_init_dut() and you can already see a live design • Standard way to work • All env’s have the same 10 methods • Built-in hooks based on multiple project experience

  6. 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() @clk is also { write_reg(start_rt, 0x1234); }; t_scenario() @clk is also { sync @rt_done; read_reg(rt_status); }; };

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

  8. Ace Env Example Cont. • The top Ace Env runs the test flow • Package automatically knows who’s 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 children’s functions by constraints

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

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

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