TK pipeline insertion

wangm123

TK这工具用什么命令可以在channel input/ouput和edt之间插入pipeline stage
我在insert edt 这个step用下面命令
set_edt_pins input 1     dsp_channels_in1 -pipeline_stages 1
set_edt_pins output 1    dsp_channels_out1 -pipeline_stages 1
但是最后生成的netlist里面是没有pipeline stage的，log里面说只有在atpg step有效
//  Warning: The defined channel pipeline stages are not included in the generated RTL. They are only used for DRC and pattern generation in the Pattern Generation Phase.

各位高手，急求答案啊，先在此谢谢。