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<p><FONT class=normalfont><B><font color=blue>设置串口多用户卡</font></B></FONT><BR><FONT class=smallfont color=#ff9900>2004-04-23 15:18 pm</FONT><BR><FONT class=normalfont>作者:Paul Liang<br>来自:Linux知识宝库<br>联系方式:无名<br><br>操作系统:RedHat 6.1 <br>
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硬件:串口多用户卡 <br>
<br>
串口多用户卡一般都有跳线可供选择(阅读说明书)。 <br>
<br>
我对一个八口的多用户卡的跳线设置为: <br>
<br>
IRQ=3 <br>
<br>
I/O=0190,0198,01a0,01a8,01b0,01b8,01c0,01c8(十六进制)共八个 I/O端口 <br>
<br>
多用户卡的晶片类型:16550A /*不同的多用户卡的晶片类型可能不同*/ <br>
<br>
过程:由于涉及设置,以下的操作由root用户完成。 <br>
<br>
<br>
<br>
一.因为多用卡的中断是3,所以要删去ttyS1(COM1)和ttyS3(COM4) <br>
<br>
1. #cd /dev <br>
<br>
2. #./MAKEDEV -d ttyS1 <br>
<br>
3. #./MAKEDEV -d ttyS3 <br>
<br>
<br>
<br>
二.生成串口设备 <br>
<br>
1. #cd /dev <br>
<br>
2. #./MAKEDEV ttyS11 <br>
<br>
3. #./MAKEDEV ttyS12 <br>
<br>
4. #./MAKEDEV ttyS13 <br>
<br>
5. #./MAKEDEV ttyS14 <br>
<br>
6. #./MAKEDEV ttyS15 <br>
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7. #./MAKEDEV ttyS16 <br>
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8. #./MAKEDEV ttyS17 <br>
<br>
9. #./MAKEDEV ttyS18 /*选择这样的串口设备是我的喜好,您可以选择ttyS[0..63]范围的串口设备*/ <br>
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<br>
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三.设置串口设备对应多用户卡的串口 <br>
<br>
1. #/bin/setserial /dev/ttyS11 port 0x0190 irq 3 uart 16550A /*设置/dev/ttyS11i为对应多用户卡的 第一个串口,以下依此类推*/ /*如果没有setserial工具,就安装它.RH6.1的缺省安装就已有此工具了*/ <br>
<br>
2. #/bin/setserial /dev/ttyS12 port 0x0198 irq 3 uart 16550A <br>
<br>
3. #/bin/setserial /dev/ttyS13 port 0x01a0 irq 3 uart 16550A <br>
<br>
4. #/bin/setserial /dev/ttyS14 port 0x01a8 irq 3 uart 16550A <br>
<br>
5. #/bin/setserial /dev/ttyS15 port 0x01b0 irq 3 uart 16550A <br>
<br>
6. #/bin/setserial /dev/ttyS16 port 0x01b8 irq 3 uart 16550A <br>
<br>
7. #/bin/setserial /dev/ttyS17 port 0x01c0 irq 3 uart 16550A <br>
<br>
8. #/bin/setserial /dev/ttyS18 port 0x01c8 irq 3 uart 16550A <br>
<br>
<br>
<br>
四.编缉/etc/inittab文件 <br>
<br>
1. 在文件/etc/inittab增多以下几行: <br>
<br>
11:2345:respawn:/sbin/mingetty ttyS11 <br>
<br>
12:2345:respawn:/sbin/mingetty ttyS12 <br>
<br>
13:2345:respawn:/sbin/mingetty ttyS13 <br>
<br>
14:2345:respawn:/sbin/mingetty ttyS14 <br>
<br>
15:2345:respawn:/sbin/mingetty ttyS15 <br>
<br>
16:2345:respawn:/sbin/mingetty ttyS16 <br>
<br>
17:2345:respawn:/sbin/mingetty ttyS17 <br>
<br>
18:2345:respawn:/sbin/mingetty ttyS18 /*每行开头的号码(如11等)视您的机器设置而定*/ <br>
<br>
2. #init q /*使以上增加的几行生效*/ <br>
<br>
至此,已完成了串口多用户卡的设置。接上终端,就可见到盼望已久的login状态,爽吧! <br>
<br>
<br>
<br>
另外,如果想每次一开完机就能使用串口卡,可以将第三步编缉成shell文件,放在/etc/rc.d/init.d下,然后在/etc/rc.d/rc3.d造个软连接,步骤如下: <br>
<br>
1. #cd /etc/rc.d/init.d <br>
<br>
2. #vi ttyS //文件名随您选 <br>
<br>
增加第三步的几行: <br>
<br>
/bin/setserial /dev/ttyS11 port 0x0190 irq 3 uart 16550A <br>
<br>
/bin/setserial /dev/ttyS12 port 0x0198 irq 3 uart 16550A <br>
<br>
/bin/setserial /dev/ttyS13 port 0x01a0 irq 3 uart 16550A <br>
<br>
/bin/setserial /dev/ttyS14 port 0x01a8 irq 3 uart 16550A <br>
<br>
/bin/setserial /dev/ttyS15 port 0x01b0 irq 3 uart 16550A <br>
<br>
/bin/setserial /dev/ttyS16 port 0x01b8 irq 3 uart 16550A <br>
<br>
/bin/setserial /dev/ttyS17 port 0x01c0 irq 3 uart 16550A <br>
<br>
/bin/setserial /dev/ttyS18 port 0x01c8 irq 3 uart 16550A <br>
<br>
存盘退出 <br>
<br>
3. #chmod +x ttyS /*使ttyS可执行*/ <br>
<br>
4. #cd /etc/rc.d/rc3.d //这是进入字符状态多用户模式,如果一开机就进入 //XWindows模式,应选择路径/etc/rc.d/rc5.d <br>
<br>
5. #ln -s ../init.d/ttyS S99ttyS //您可以选另外一个连接文件名 // <br>
<br>
以上是我的做法,当然,很多人将上面几行setserial内容增加在/etc/rc.d/rc.local //的尾部,就更简单了。 <br>
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<br>
<br>
如果你想知道你所用的终端是哪一个串口设备,可编缉/etc/rc.d/rc.local,在它的一行中 增加(l): <br>
<br>
1. #vi /etc/rc.d/rc.local <br>
<br>
找到一行: echo "Kernel $(uname -r) on $a $SMP$(uname -m)" >> /etc/issue <br>
<br>
增加(l),上面一行变成: <br>
<br>
echo "Kernel $(uname -r) on $a $SMP$(uname -m) (l)" >> /etc/issue <br>
<br>
那么,你就能在终端上见到象这样的login状态: <br>
<br>
...................... <br>
<br>
.................... (ttyS11) <br>
<br>
............ login: <br>
<br>
最紧要的是你要知道串口多用户卡的晶片、中断和I/O。
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