Error Messages from Modelsim Starter Edition : # ** Error: ERROR: .\RTL_simulation\adapted\result.vcd(2440): illegal value

Hi,

Thanks for sharing the VCD file.

Looking at your .vcd file

line 14 $var real 1 aaaal VIO $end It seems like bit width is set to 1.

$var type bitwidth id name

Try to increase the bit width to fix the issue.

Thanks,

Arslan