mic_huhu said:
Hi,
when I need do it ? Modify RTL before synthesis or DFT after synthesis?
Johnny
no need to modify RTL before synthesis. do synthesis in your way.
while inserting DFT, we can direct the tool to insert scan_muxes at the reset input of the submodule, such that in scan mode submodule will be resetted by master reset, in functional mode, it uses internally generated reset.
the constraints are,
set_dft_configuration -autofix
set_autofix_configuration -async_fix fix_muxes
2nd constraint may not have exact options. please refer sold. but idea is correct.