CH340IR.EXE USB_SER.PDF CH340PCB\IRDA\CH340IR.DDB ........\....\README.TXT ........\PRINT\CH340PRT.DDB ........\.....\README.TXT ........\SERIAL\CH340SER.DDB ........\......\README.TXT CH340DS1.PDF .....PCB\IRDA ........\PRINT ........\SERIAL CH340PCB