When I send data to the COM port, the program sometimes thinks the COM port is occupied, but actually it isn't.
What method can I use to solve this problem
What method can I use to solve this problem
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中国DOS联盟论坛 » DOS学习入门 & 精彩文章 （教学室） » Clearing the COM Port
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Posted 2003-06-02 00:00 · 中国 江苏 苏州 联通
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Posted 2003-06-02 00:00 · 中国 江苏 苏州 联通
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Bumping this myself
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Posted 2003-06-02 00:00 · 美国 肯塔基州 费耶特县 列克星敦 Charter_Communications
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Is this under a DOS window in WIN, or under pure DOS?
Wengier - 新DOS时代
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欢迎大家来到我的“新DOS时代”网站，里面有各类DOS软件和资料，地址：
http://wendos.mycool.net/
E-Mail & MSN: wengierwu AT hotmail.com （最近比较忙，有事请联系DOSroot和雨露，谢谢！）
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Posted 2003-06-03 00:00 · 中国 江苏 苏州 联通
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It's in a DOS window under WIN
Thanks for your concern
What should I do
Thanks for your concern
What should I do
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Posted 2003-06-04 00:00 · 中国 上海 电信
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Old programs have poor compatibility.
1. First use the serial port with a Windows program, then after exiting try the DOS program again.
2. Check whether there are any special settings in the BIOS (especially on laptops).
3. Then the only choice is to exit the system and enter DOS mode
1. First use the serial port with a Windows program, then after exiting try the DOS program again.
2. Check whether there are any special settings in the BIOS (especially on laptops).
3. Then the only choice is to exit the system and enter DOS mode
玩DOS，还是我76年出生的人熟...
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Posted 2003-06-11 00:00 · 中国 江苏 苏州 联通
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Let me bump this again myself.
I hope that before sending data to the COM port, I can first forcibly clear the previous data, or make the program think the COM port is idle.
Many thanks to everyone for the help
I hope that before sending data to the COM port, I can first forcibly clear the previous data, or make the program think the COM port is idle.
Many thanks to everyone for the help
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