1. Com ports & environment space
- Posted by John Kinne <JDKINNE at MIAMIU.BITNET> Oct 25, 1996
- 1891 views
Hello All, I am trying to use Euphoria to write to a COM port, and I would like to determine how much DOS environment space is present on a computer. Environment space: I could have the program look in the CONFIG.SYS for a SHELL statement with an /e specification. Is there a more elegant way? My INSTALL program has had problems on some user's machines when the environment space is exhausted. Many users have no idea what com port their modem is on. I would like my installer to be able to look for a modem (issue an ati command and see if there is a response). The E. doc for open says I can open COM1 (I presume I can open COM 2 3 & 4). I am looking for any hints on how to get started. Can I just puts and gets to & from a COM port, or do I have to worry about single spacing the characters. Can I work with the IRQs? Thanks John Kinne
2. Re: Com ports & environment space
- Posted by David Gay <moggie at INTERLOG.COM> Oct 26, 1996
- 1901 views
> Many users have no idea what com port their modem is on. I would > like my installer to be able to look for a modem (issue an ati > command and see if there is a response). The E. doc for open > says I can open COM1 (I presume I can open COM 2 3 & 4). > I am looking for any hints on how to get started. Can I just > puts and gets to & from a COM port, or do I have to worry about > single spacing the characters. Can I work with the IRQs? Hi John Yes, you can open COM2-COM4 as well. You can determine what COMx ports are open by simply issuing an open() first and seeing if you get a -1 returned for a failed open. To see what COMx port the modem is set, simply issuing an ATZ to any of the COMx ports that return a positive file handle number and reading back an OK string will work. I recommend you open the com port as a binary file, using both a combination of strings and single character output. Hope this helps. David
3. Re: Com ports & environment space
- Posted by Chuck Heinze <Chuckhein at AOL.COM> Oct 28, 1996
- 1934 views
- Last edited Oct 29, 1996
How can I get off this list? Chuck Heinze chuckhein at aol.com
4. Re: Com ports & environment space
- Posted by Robert Craig <72614.1667 at COMPUSERVE.COM> Oct 29, 1996
- 1947 views
Chuck Heinze asks... > How can I get off this list? Send an e-mail message to: LISTSERV at MIAMIU.ACS.MUOHIO.EDU with the body text: SIGNOFF EUPHORIA (The subject of your message is ignored.) If you want to get back on later, send a message to the same address, but say: SUBSCRIBE EUPHORIA Chuck Heinze If you want to receive at most one e-mail message per day from the list, I believe you can say: SET EUPHORIA DIGESTS This will combine all messages for each day into a single, somewhat condensed, message. -- Rob Craig Rapid Deployment Software