Salocin68 at 06:14, 11 April 2012

2012-04-11T06:14:55Z

← Older revision		Revision as of 08:14, 11 April 2012
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	* In this example, we assume that your serial port is ''/dev/ttyS0'' (first serial port). Change this to the appropriate value if necessary. For example if you use an ''USB <-> Serial'' converter then serial port would surely be named like that: ''/dev/ttyUSB0''		* In this example, we assume that your serial port is ''/dev/ttyS0'' (first serial port). Change this to the appropriate value if necessary. For example if you use an ''USB <-> Serial'' converter then serial port would surely be named like that: ''/dev/ttyUSB0'' or ''/dev/ttyACM0''
	* If your ''USB <-> Serial'' converter doesn't seem to work, run the ''dmesg'' command. You should read [http://ubuntuforums.org/archive/index.php/t-392791.html this thread] if you see some disconnection data like this :		* If your ''USB <-> Serial'' converter doesn't seem to work, run the ''dmesg'' command. You should read [http://ubuntuforums.org/archive/index.php/t-392791.html this thread] if you see some disconnection data like this :
	[ 2445.568000] usb 1-1.4: new full speed USB device using uhci_hcd and address 22		[ 2445.568000] usb 1-1.4: new full speed USB device using uhci_hcd and address 22

JulienB: Factorize doc

2009-05-15T15:54:23Z

Factorize doc

New page

* In this example, we assume that your serial port is ''/dev/ttyS0'' (first serial port). Change this to the appropriate value if necessary. For example if you use an ''USB <-> Serial'' converter then serial port would surely be named like that: ''/dev/ttyUSB0''
* If your ''USB <-> Serial'' converter doesn't seem to work, run the ''dmesg'' command. You should read [http://ubuntuforums.org/archive/index.php/t-392791.html this thread] if you see some disconnection data like this :
[ 2445.568000] usb 1-1.4: new full speed USB device using uhci_hcd and address 22
...
[ 2446.964000] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[ 2446.964000] ftdi_sio 1-1.4:1.0: device disconnected

* Check that you have read/write rights on ''/dev/ttyS0'' (ie your serial port): your user ID (here julien) should be part of the serial port access group (here dialout):
<pre class="host>
$ ls -al /dev/ttyS0
crw-rw---- 1 root dialout 4, 64 2009-05-15 14:56 /dev/ttyS0
$ id
uid=1000(julien) gid=1000(julien) groupes=4(adm),20(dialout),...
</pre>

Serial port selection generalities - Revision history

Salocin68 at 06:14, 11 April 2012

JulienB: Factorize doc