On Fri, Sep 30, 2011 at 1:58 PM, Lucas Gerads <lucas.ger...@googlemail.com> wrote: > I use GNU screen in Ubuntu Linux to connect over a RS232 serial port > to an embedded device (which runs Angstrom Linux) When I reboot my > embedded device I can see all the messages properly with screen, but I > cannot input anything on the target device. > > I run the commands > > $ screen /dev/ttyS1 115200 > > this connects me to the target device. The target is already booted up. > Now, if I input on the target via screen > > $ reboot > > I can see all the shutdown and booting messages, but I cannot input > anything via my keyboard. Eventually I arrive on the login screen of > my target device, but of course I cannot login. If I kill the screen > and then relaunch it with > > $ screen /dev/ttyS1 115200 > > everything is fine again. I have to access the bootloader shell on my > target device, so I need to be able to input things during the > bootprocess. Any ideas what is going on? > > Thanks in advance > > Lucas >
I am still experiencing the same problems. I am trying to explain my problems again, maybe that makes my problem a little clearer. I am doing embedded development. I used to use minicom but experienced problems, that seem to be common. In a lot of places "screen" is recommended to use to connect over the serial port to the target device. Maybe the following steps outline my problem better: I connect to my target device with the command "$ screen /dev/ttyS1 115200". If I boot it up manually, I am able to read all the booting messages, but seem not to be able to input anything (I want to open the bootloader). At the end of the boot process, I can of course also not login (I run angstrom linux on my target). This is only possible when I issue the command "ctrl-a :quit". It takes awfully long until screen finally quits. If I then reconnect with the command "$ screen /dev/ttyS1 115200", everything seems to be fine and I can login into linux on my target device. I do not experience this with hyperterminal under windows or minicom on linux, but both have other shortcomings, why I would like to switch to screen. Any ideas? -- Lucas _______________________________________________ screen-users mailing list screen-users@gnu.org https://lists.gnu.org/mailman/listinfo/screen-users
