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中国DOS联盟论坛 The time now is 2026-08-12 14:46 |
47,811 topics / 349,897 posts / today 0 new / 48,256 members |
| DOS学习入门 & 精彩文章 （教学室） » Clearing the COM Port |
| Printable Version 1,342 / 5 |
| Floor1 wojue | Posted 2003-06-02 00:00 |
| 初级用户 Posts 6 Credits 124 | |
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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 |
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| Floor2 wojue | Posted 2003-06-02 00:00 |
| 初级用户 Posts 6 Credits 124 | |
 Bumping this myself |
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| Floor3 Wengier | Posted 2003-06-02 00:00 |
| 系统支持 Posts 10,521 Credits 27,736 | |
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Is this under a DOS window in WIN, or under pure DOS?
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| Floor4 wojue | Posted 2003-06-03 00:00 |
| 初级用户 Posts 6 Credits 124 | |
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It's in a DOS window under WIN
Thanks for your concern What should I do |
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| Floor5 人类 | Posted 2003-06-04 00:00 |
| 中级用户 Posts 81 Credits 306 | |
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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 |
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| Floor6 wojue | Posted 2003-06-11 00:00 |
| 初级用户 Posts 6 Credits 124 | |
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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 |
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