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中国DOS联盟论坛 » DOS开发编程 & 发展交流 （开发室） » How to program to control the RS232 serial port under MS-DOS, detailed information and source code
DigestI
View 14,726 Replies 19
DigestI
View 14,726 Replies 19
Original Poster
Posted 2007-09-12 15:56 · 中国 四川 德阳 电信
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Floor 2
Posted 2007-09-29 21:39 · 中国 江苏 南京 电信
Recently I'm working on RS232 stuff. Got it, thanks.
Floor 3
Posted 2008-01-20 20:20 · 中国 陕西 西安 电信
Floor 4
Posted 2008-08-28 23:15 · 中国 湖南 长沙 联通
Thanks, thank you so much. I'm a newbie, he he
Floor 5
Posted 2008-09-22 18:18 · 中国 陕西 西安 电信
Not bad, not bad. Take it home and study it.
Floor 6
Posted 2008-09-24 13:20 · 中国 广东 深圳 电信
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Good!
[ Last edited by windowsvesta on 2008-9-24 at 01:22 PM ]
[ Last edited by windowsvesta on 2008-9-24 at 01:22 PM ]
Floor 7
Posted 2008-12-10 08:42 · 中国 黑龙江 哈尔滨 联通
Great, very practical, thank you.
Floor 8
Posted 2008-12-28 13:12 · 中国 陕西 西安 电信
Expert, learned something from this.
Floor 9
Posted 2008-12-28 19:27 · 中国 福建 厦门 电信
The difficulty in designing the communication between PC and single-chip microcomputer lies not in the PC side but in the single-chip microcomputer side. The current loop method is not very good in practice (especially when the PC is designed to work in interrupt mode instead of polling mode). But if the traditional 232 interface is used, the power supply requirement of ±12 volts is obviously difficult to meet, so it is usually appropriate to use a 232 IC with a boost module (such as MAX232) for the interface.
***PS: Nowadays, as serial ports are facing elimination, developing towards USB is a trend***
[ Last edited by netwinxp on 2008-12-28 at 19:29 ]
***PS: Nowadays, as serial ports are facing elimination, developing towards USB is a trend***
[ Last edited by netwinxp on 2008-12-28 at 19:29 ]
Floor 10
Posted 2008-12-29 19:50 · 中国 广东 江门 电信
I once did something about a single - chip microcomputer connected to a PC via USB, but unfortunately, the data is no longer reliable when it exceeds 5 meters. While for RS232, I once tried about 180 meters, and the communication was still okay.
Floor 11
Posted 2009-01-15 23:50 · 中国 香港 电讯盈科有限公司
Floor 12
Posted 2009-01-23 00:49 · 中国 江西 南昌 电信
Nice
Those who do not study the past are condemned to repeat it
Floor 13
Posted 2009-02-10 14:50 · IANA 局域网IP(Private-Use)
It's very practical. No wonder there was no response when communicating with devices under DOS. It turns out that without using the interrupt mode, it can only reach 9200.
Floor 14
Posted 2009-04-17 01:45 · 中国 山东 泰安 联通
Good stuff, make a mark, check later
Floor 15
Posted 2009-07-08 02:05 · 中国 广东 广州 海珠区 电信
Thanks, thank you so much, I'm a newbie
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