Command Reference 3. Attributes and Variabplreosj_export_timing_constraint _N_A_M_E proj_export_timing_constraint SYNTAX _S_t_r_i_n_g proj_export_timing_constraint = "_y_e_s" _o_r "_n_o" DESCRIPTION This variable controls the export of timing constraints when a project is updated using the update_project(2) command. If the variable is set to `yes', then timing constraints will be written when the chip is exported. This variable only exists when a project is opened or created. To determine the current value of this variable, use fe_shell > printvar proj_export_timing_constraint. SEE ALSO update_project(2) v3.0 Synopsys Inc. 1988-1998. All rights reserved. 3-1