The Simtel.Net MS-DOS Collection

I/O Utilities

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Filename Size Description Date
16550a.zip 20K Toggle 16550 UART FIFOs on and off 21-Oct-88
16550doc.zip 23K 16550 docs/utils. Do you need a 16550 UART? 15-Apr-93
16550s.zip 5K Toggle the NS16550A FIFO buffer, w/TPas source 12-Apr-88
16550s13.zip 9K Toggle the NS16550A FIFO buffer, w/TPas source 28-Mar-91
16550u.zip 26K Scan for serial ports on system, enable 16550 10-Mar-93
1pr2a.zip 1K Swaps LPT1 and LPT2 printer ports 18-May-89
34instal.zip 3K Adds DOS support for COMM ports 3 and 4 02-Jan-90
addport.zip 7K Adds COM3/COM4 ports to DOS equipment list 01-Mar-89
async.zip 31K Asynchronous communications routines 22-Oct-86
async1.zip 12K COMM driver [.ASM] 20-Mar-86
async2.zip 15K COMM driver [.ASM] 23-Jul-88
async_ce.zip 20K COMM port driver 31-Aug-87
aux2.zip 3K Makes the AUX driver talk to the COM2 port 20-Mar-87
auxil15.zip 1K Device driver redirects AUX output to CON 08-Jan-92
breakbox.zip 5K Software-based RS232 breakout box 07-Nov-86
com3_4.zip 4K Device driver adds COM3/4 that MS-DOS forgot! 09-Dec-88
comchk18.zip 30K Commchk 1.8: Serial port protocol analyzer 18-Feb-93
comfix12.zip 15K Windows COM port 'bug' fix/DOS COM port setup 07-Jul-94
comhelp.zip 60K Comprehensive comm/tutor and UART tester 31-Oct-87
comhex42.zip 30K Serial communications display program 22-Apr-88
comm.c 4K COMM driver [.C] 06-Apr-84
comm.doc 1K Doc for COMM.C 06-Apr-84
comprt25.zip 29K Config COM/LPT ports: Show address, IRQ & UART 27-Sep-93
comsnd14.zip 24K Send arbitrary characters to COM port from DOS 05-Jan-89
comst13.zip 28K Comset v1.3: Modem/UART/serial port tester 29-May-97
comtrap.zip 2K TSR to trap unexpected COM port interrupts 09-Jan-92
czcm11b.zip 9K Driver allows various mixes of COM ports 1-4 11-Dec-90
db9-db25.zip 435 Wiring info: DB9 to DB25 serial connector 14-Feb-87
dcom20.zip 36K Captures COM port input. Requires two ports 24-Aug-91
dlm140.zip 25K Data Line Monitor: Turn PC into a datascope 23-Mar-94
fifo11.zip 7K Report type of UART (8250, 16550, etc.) 22-Apr-91
fx16550d.zip 3K Corrects problem with AMI BIOS and 16550 UART 29-Nov-93
ibmaux20.zip 3K Dual I/O driver for the AUX: device 24-Apr-86
iomon2.zip 32K IO Monitor 386 control watches COM ports 12-Apr-92
ioview.zip 5K Diagnostic - view of PC's I/O ports in action 24-Jun-90
ip122.zip 9K Serial interrupt and port verification program 17-Nov-91
kbfake10.zip 9K Redirects serial input as if from keybd, w/src 07-Apr-94
komm.asm 27K Installable device drivers for COM1 and COM2 07-Jul-85
komm.inf 1K Documentation for KOMM.ASM device driver 07-Jul-85
lptfl101.zip 11K Redirect parallel port out to DOS file/device 24-Nov-97
lpt_io_4.zip 12K Capture, view, playback, etc. digital data 21-Jul-99
message.zip 47K Send msgs thru COM port between PCs, TSR w/src 09-Nov-92
new14h.zip 5K DOS-extension add functions to comm routines 07-Aug-86
ns16550.zip 2K Checks to see if NS16550AN serial chip is used 15-Jun-89
ns_16550.zip 37K Test 16450/16550/16550a serial chips w/source 18-Jul-91
ox.zip 3K Redirect DOS AUX I/O to keyboard/mono display 07-Jul-87
para13.zip 71K Parallel port information & diagnostic util. 25-Dec-93
pc_to_pc.zip 1K Assist on PC-PC direct connection 27-Mar-88
pf271.zip 35K Port Finder: Display info/swap LPT & COM ports 21-Jun-92
pipeln10.zip 17K TSR connects COM1 and COM2 serial ports 13-Aug-90
port11.zip 26K I/O port debugging tool, with C source code 13-Mar-91
portfind.zip 5K Locate & install serial & par. ports, COM3&4 07-Sep-88
ports20.zip 34K PORTS: Tests functionality of system ports 21-Jan-99
portst11.zip 41K Diagnostic program for serial/parallel ports 10-Feb-91
prlink20.zip 26K File transfer prog. via printer/parallel port 02-Dec-94
qic02a10.zip 119K Wangtek QIC-02 tape driver & Unix TAR I/O 14-Feb-95
redev100.zip 8K Redirects AUX,COM1,etc to another char device 09-Sep-96
resq232s.zip 200K ResQ232: Makes DOS an RS232 line monitor 21-Dec-99
rs204.zip 15K Displays RS-232 serial port status 30-Sep-91
rs232.zip 3K Source for COMM drivers (.ASM) 22-Dec-86
rs232105.zip 48K RS-232 Bus Protocol Analyzer 03-Feb-98
rs232of2.zip 1K Fix port conflicts, turns off all 4 COM ports 09-Feb-89
rts12.zip 8K Toggle RTS for COM1 to COM4 ports 26-Apr-90
sansint2.zip 31K Port utility - poll ports rather than use IRQs 23-Nov-90
serial.aqm 3K Serial/COMM port driver (squeezed) 08-Dec-85
serial.doc 1K Doc for SERIAL.AQM 03-Dec-83
seril200.zip 16K Serial: Shows status of COM ports on screen 21-Jun-98
serint.aqm 3K Interrupt-driven serial port driver 08-Dec-85
slikmode.zip 8K New MODE: Set baudrate to any rate w/C src 25-Mar-91
superv22.zip 46K Enhanced BIOS interrupt 14 comm support 10-Feb-87
swapcom.zip 1K Swap COM1 with COM2 19-Mar-89
swapport.zip 1K Swap LPT1 with LPT2 18-Mar-89
tandy232.asm 8K Replacement for Tandy 2000 RS232 I/O handler 06-Oct-85
timio3_0.zip 71K Timed record and playback COM port data 01-Dec-91
toadmod1.zip 4K Set COM 1-4 to 19200/38400/57600/115200 bps 17-Apr-89
tsrcomm.zip 16K TSR serial device driver 09-Sep-87
uartbug.zip 10K UART and COM port debuging tool, TSR 09-Mar-87
uartty12.zip 8K Displays type of UART chip for all comm ports 29-May-92
whtprt40.zip 12K Displays system serial ports & IRQ assignments 10-Oct-91
xport21.zip 27K Fast PC-to-PC RS232 serial line file transfer 15-Jan-92
z404mpsc.zip 5K Zenith COM3 port driver fix for gov't Z-248 24-Jun-91

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