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- *************************************************************************
- * *
- * NULLTest by Per-Olof Yliniemi *
- * *
- * Copyright © 1993 - All Rights Reserved *
- * *
- *************************************************************************
- * *
- * DISCLAIMER: No responsibility can be taken on the part of the author *
- * for any consequences that may occur as a result of using this *
- * program. Every part of the program has been thoroughly tested to *
- * to its specified limits and any known specific limitations of the *
- * the program are stated within this documentation. *
- * *
- *************************************************************************
- * *
- * COPYRIGHT: This program is PUBLIC DOMAIN. No kind of contributions *
- * are required from anyone who uses this program. *
- * *
- * This program may not be sold for any profit (a nominal fee for *
- * copying is accepted). The program may be freely distributed as long *
- * as all files are distributed and unmodified. *
- * *
- * This program may not be used as a part of any commercial packages *
- * without my permission. The source code for this program may not be *
- * reproduced by disassembling or reversing the development process in *
- * any way. *
- * *
- *************************************************************************
-
- About this program:
- ---------------------
- This program gives you a simple way to test your NULL modem cable.
-
- Installation/Requirements:
- ----------------------------
- Connect two computers with the NULL modem cable. Start this program on
- both computers. The program will open a window with some gadgets and two
- rectangles. The rectangles are used to show you the status of the CTS
- and DSR signals. Blue (wb2.0 std colors) color of the rectangle means
- ON (1), white means OFF (0).
-
- Gadgets:
- ----------
- All gadgets control the output signals from the machine that the program
- was started on.
-
- Set DTR: Sets the DTR signal (DSR should be blue on the other end)
- Set RTS: Sets the RTS signal (CTS should be blue on the other end)
- Clear DTR: Clear the DTR signal (DSR should be white on the other end)
- Clear RTS: Clear the RTS signal (CTS should be white on the other end)
- DTR <-> RTS: DSR has the opposite status of CTS. Toggles with a half
- seconds delay.
- Toggle DTR: Toggle the DTR signal with a half seconds delay. The DSR on
- the other end should change status every half second.
- Toggle RTS: Toggle the RTS signal with a half seconds delay. The CTS on
- the other end should change status every half second.
-
- Press the left mouse button to stop the DTR <-> RTS and the Toggle tests.
-
- Press the close gadget to quit the program.
-
- ---------------------------------------------------------------------------
-
- All kinds of freely distributable programs (new software...) are accepted
- as a contribution for this program. If you are a programmer, send me some
- of your own code.
-
- Contributions and bug reports for this program should be sent to:
-
-
- Per-Olof Yliniemi
- Muoniovaara
- S-980 64 Muodoslompolo
- SWEDEN
-
- ---------------------------------------------------------------------------