你好,我设置的就是3X3的,而且取值就是那个delay和power中的input slew里,选取的首位和中间三个值。但是还是会报错。
- ERROR (LIB-52): The constraint search failed to find a solution within the search range for arc of cell:'DFM1RA_st', r_pin:'CK', r_pin dir:'r', pin:'D', pin dir:'r', type:'hold_rising rise_constraint', vector:'RRxx'. This cell will be marked as failed and the constraint data will be set to: 1.0 (see constraint_failed_value). To debug, review the saved simulation results for deck: hold_5. Possible causes include: 'constraint_delay_degrade' too large; 'constraint_delay_degrade_abstol' too large; 'constraint_check_final_state_threshold' too large; estimated search range too small (see constraint_search_bound). Modify the constraint parameters and rerun.
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- WARNING (LIB-70): One or more receiver cap values (-4.19986e-05) for cell: 'DFM1RA_st', pin: 'CK', r_pin: '', when: '', type: 'CCS', table: 'receiver_capacitance1_rise' are negative. Save and review the simulation output (see extsim_save_passed, extsim_save_failed, extsim_deck_dir). Make the required corrections to the Tcl and rerun.
复制代码 这是显示的错误和警告信息,对了我是考虑低电压下生成的,我在想是不是他的那三个值有什么限制要求,单元库的参数里有一项Minimum Pulse Width ,不知道是不是这个有影响的原因?
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