16550a.zip Toggle 16550 UART FIFOs on and off 16550doc.zip 16550 docs/utils. Do you need a 16550 UART? 16550s.zip Toggle the NS16550A FIFO buffer, w/TPas source 16550s13.zip Toggle the NS16550A FIFO buffer, w/TPas source 16550u.zip Scan for serial ports on system, enable 16550 1pr2a.zip Swaps LPT1 and LPT2 printer ports 34instal.zip Adds DOS support for COMM ports 3 and 4 addport.zip Adds COM3/COM4 ports to DOS equipment list async.zip Asynchronous communications routines async1.zip COMM driver [.ASM] async2.zip COMM driver [.ASM] async_ce.zip COMM port driver aux2.zip Makes the AUX driver talk to the COM2 port auxil15.zip Device driver redirects AUX output to CON breakbox.zip Software-based RS232 breakout box com3_4.zip Device driver adds COM3/4 that MS-DOS forgot! com_pkg1.zip COMM drivers (source only) com_pkg2.zip COMM drivers (source only) com_pkg3.zip COMM drivers (source only) comchk18.zip Commchk 1.8: Serial port protocol analyzer comfix12.zip Windows COM port 'bug' fix/DOS COM port setup comhelp.zip Comprehensive comm/tutor and UART tester comhex42.zip Serial communications display program comm.c COMM driver [.C] comm.doc Doc for COMM.C comprt25.zip Config COM/LPT ports: Show address, IRQ & UART comsnd14.zip Send arbitrary characters to COM port from DOS comst12.zip Comset v1.2: Modem/UART/serial port tester comtrap.zip TSR to trap unexpected COM port interrupts czcm11b.zip Driver allows various mixes of COM ports 1-4 db9_db25.zip Wiring info: DB9 to DB25 serial connector dcom20.zip Captures COM port input. Requires two ports dlm140.zip Data Line Monitor: Turn PC into a datascope fifo11.zip Report type of UART (8250, 16550, etc.) fx16550d.zip Corrects problem with AMI BIOS and 16550 UART ibmaux20.zip Dual I/O driver for the AUX: device iomon2.zip IO Monitor 386 control watches COM ports ioview.zip Diagnostic - view of PC's I/O ports in action ip122.zip Serial interrupt and port verification program kbfake10.zip Redirects serial input as if from keybd, w/src komm.asm Installable device drivers for COM1 and COM2 komm.inf Documentation for KOMM.ASM device driver lptfl10.zip Redirect par. port output to a file or device message.zip Send msgs thru COM port between PCs, TSR w/src new14h.zip DOS-extension add functions to comm routines ns16550.zip Checks to see if NS16550AN serial chip is used ns_16550.zip Test 16450/16550/16550a serial chips w/source ox.zip Redirect DOS AUX I/O to keyboard/mono display para13.zip Parallel port information & diagnostic util. pc_to_pc.zip Assist on PC-PC direct connection pf271.zip Port Finder: Display info/swap LPT & COM ports pipeln10.zip TSR connects COM1 and COM2 serial ports port11.zip I/O port debugging tool, with C source code portfind.zip Locate & install serial & par. ports, COM3&4 ports13.zip Permits reading and writing to hardware ports portst11.zip Diagnostic program for serial/parallel ports prlink20.zip File transfer prog. via printer/parallel port qic02a10.zip Wangtek QIC-02 tape driver & Unix TAR I/O rs204.zip Displays RS-232 serial port status rs232.zip Source for COMM drivers (.ASM) rs232101.zip RS232 v1.01: Debug most RS-232 problems rs232of2.zip Fix port conflicts, turns off all 4 COM ports rts12.zip Toggle RTS for COM1 to COM4 ports sansint2.zip Port utility - poll ports rather than use IRQs serial.aqm Serial/COMM port driver (squeezed) serial.doc Doc for SERIAL.AQM serint.aqm Interrupt-driven serial port driver slikmode.zip New MODE: Set baudrate to any rate w/C src superv22.zip Enhanced BIOS interrupt 14 comm support swapcom.zip Swap COM1 with COM2 swapport.zip Swap LPT1 with LPT2 tandy232.asm Replacement for Tandy 2000 RS232 I/O handler timio3_0.zip Timed record and playback COM port data toadmod1.zip Set COM 1-4 to 19200/38400/57600/115200 bps tsrcomm.zip TSR serial device driver uartbug.zip UART and COM port debuging tool, TSR uartty12.zip Displays type of UART chip for all comm ports whtprt40.zip Displays system serial ports & IRQ assignments xport21.zip Fast PC-to-PC RS232 serial line file transfer z404mpsc.zip Zenith COM3 port driver fix for gov't Z-248