NGDBUILD gives error:basnu:188 - The equation value ... is not valid. The problem is with Exemplar Leonardo Spectrum. It outputs Exclamation marks (!) as a NOT function. The correct symbol is ' ~ '.
解决方案
The latest version of Leonardo Spectrum should output the correct character for the NOT function in an equation.
Another workaround is to replace all ' ! ' characters with ' ~ ' characters in the EDIF netlist