Ch341par.exe -

1. What is ch341par.exe? ch341par.exe is a command-line utility for Windows (often included with CH341 series drivers ) that allows direct read/write access to the parallel port pins of a CH341-based USB-to-parallel adapter .

C:\Program Files (x86)\CH341\CH341PAR\ch341par.exe ch341par.exe

ch341par.exe -s 0x0C ; 0x0C = 00001100 → INIT=1, others high Then pulse strobe low and back: 0x0C = 00001100 → INIT=1