Hello Dennis, That is a very relevant reaction! Thanks a lot! Now I have to find out what port is connected with UART 2 (and others I need....). I found ttyO0 and ttyO3 working, i.e. no errors reported. But also no idea to what UART they are connected. Definitely not UART2, I am using. Apart from the fact that I cannot believe that someone deliberately messed up with the serial ports..... Compatibility with earlier scripts is completely gone! Can anyone supply me with the altest UART mapping? Or better yet: re-install the old mapping? Cheers! Harke
On 29 January 2017 at 17:04, Dennis Lee Bieber <wlfr...@ix.netcom.com> wrote: > On Sun, 29 Jan 2017 03:17:51 -0800 (PST), Harke Smits > <yrra...@gmail.com> declaimed the following: > > > >pyserial, if necessary. Now my old script does not work anymore. It leaves > >me with error; Errno 2: could not open port /dev/ttyO2. No such file or > >directory. Do I miss something here? What else do I need to do? > > Well, first thing: do you HAVE a ttyO2 in /dev? I don't -- using a > "Wheezy" image from last summer, I'll dig up the SD card with "Jessie" in a > moment... (apologies for the bad wrapping) > > debian@beaglebone:~$ uname -a > Linux beaglebone 3.8.13-bone80 #1 SMP Wed Jun 15 17:03:55 UTC 2016 armv7l > GNU/Linux > debian@beaglebone:~$ ls /dev/tty* > /dev/tty /dev/tty16 /dev/tty24 /dev/tty32 /dev/tty40 /dev/tty49 > /dev/tty57 /dev/tty8 > /dev/tty0 /dev/tty17 /dev/tty25 /dev/tty33 /dev/tty41 /dev/tty5 > /dev/tty58 /dev/tty9 > /dev/tty1 /dev/tty18 /dev/tty26 /dev/tty34 /dev/tty42 /dev/tty50 > /dev/tty59 /dev/ttyGS0 > /dev/tty10 /dev/tty19 /dev/tty27 /dev/tty35 /dev/tty43 /dev/tty51 > /dev/tty6 /dev/ttyO0 > /dev/tty11 /dev/tty2 /dev/tty28 /dev/tty36 /dev/tty44 /dev/tty52 > /dev/tty60 /dev/ttyS0 > /dev/tty12 /dev/tty20 /dev/tty29 /dev/tty37 /dev/tty45 /dev/tty53 > /dev/tty61 /dev/ttyS1 > /dev/tty13 /dev/tty21 /dev/tty3 /dev/tty38 /dev/tty46 /dev/tty54 > /dev/tty62 /dev/ttyS2 > /dev/tty14 /dev/tty22 /dev/tty30 /dev/tty39 /dev/tty47 /dev/tty55 > /dev/tty63 /dev/ttyS3 > /dev/tty15 /dev/tty23 /dev/tty31 /dev/tty4 /dev/tty48 /dev/tty56 > /dev/tty7 > debian@beaglebone:~$ > > I show ttyS0 .. ttyS3 > > debian@beaglebone:~$ uname -a > Linux beaglebone 4.4.30-ti-r64 #1 SMP Fri Nov 4 21:23:33 UTC 2016 armv7l > GNU/Linux > debian@beaglebone:~$ ls /dev/tty* > /dev/tty /dev/tty17 /dev/tty26 /dev/tty35 /dev/tty44 /dev/tty53 > /dev/tty62 /dev/ttyS0 > /dev/tty0 /dev/tty18 /dev/tty27 /dev/tty36 /dev/tty45 /dev/tty54 > /dev/tty63 /dev/ttyS1 > /dev/tty1 /dev/tty19 /dev/tty28 /dev/tty37 /dev/tty46 /dev/tty55 > /dev/tty7 /dev/ttyS2 > /dev/tty10 /dev/tty2 /dev/tty29 /dev/tty38 /dev/tty47 /dev/tty56 > /dev/tty8 /dev/ttyS3 > /dev/tty11 /dev/tty20 /dev/tty3 /dev/tty39 /dev/tty48 /dev/tty57 > /dev/tty9 /dev/ttyS4 > /dev/tty12 /dev/tty21 /dev/tty30 /dev/tty4 /dev/tty49 /dev/tty58 > /dev/ttyGS0 /dev/ttyS5 > /dev/tty13 /dev/tty22 /dev/tty31 /dev/tty40 /dev/tty5 /dev/tty59 > /dev/ttyO0 > /dev/tty14 /dev/tty23 /dev/tty32 /dev/tty41 /dev/tty50 /dev/tty6 > /dev/ttyO1 > /dev/tty15 /dev/tty24 /dev/tty33 /dev/tty42 /dev/tty51 /dev/tty60 > /dev/ttyO2 > /dev/tty16 /dev/tty25 /dev/tty34 /dev/tty43 /dev/tty52 /dev/tty61 > /dev/ttyO4 > debian@beaglebone:~$ > > > Interesting -- Jessie (from last fall) shows both ttyO0/1/2/4 AND > ttyS0/1/2/3/4/5 > > debian@beaglebone:~$ ls -l /dev/ttyO* > lrwxrwxrwx 1 root root 5 Dec 10 12:31 /dev/ttyO0 -> ttyS0 > lrwxrwxrwx 1 root root 5 Jan 29 10:57 /dev/ttyO1 -> ttyS1 > lrwxrwxrwx 1 root root 5 Jan 29 10:57 /dev/ttyO2 -> ttyS2 > lrwxrwxrwx 1 root root 5 Jan 29 10:57 /dev/ttyO4 -> ttyS4 > debian@beaglebone:~$ ls -l /dev/ttyS* > crw--w---- 1 root tty 4, 64 Dec 10 12:32 /dev/ttyS0 > crw-rw---- 1 root dialout 4, 65 Jan 29 10:57 /dev/ttyS1 > crw-rw---- 1 root dialout 4, 66 Jan 29 10:57 /dev/ttyS2 > crw-rw---- 1 root dialout 4, 67 Dec 10 12:32 /dev/ttyS3 > crw-rw---- 1 root dialout 4, 68 Jan 29 10:57 /dev/ttyS4 > crw-rw---- 1 root dialout 4, 69 Dec 10 12:32 /dev/ttyS5 > > Though the ttyO* are just links to the ttyS* > > Maybe in a month or so I'll have time to flash the eMMC up to > Jessie, > and set the SD cards to newer releases. (I prefer to keep the eMMC on an > older working config) > > -- > Wulfraed Dennis Lee Bieber AF6VN > wlfr...@ix.netcom.com HTTP://wlfraed.home.netcom.com/ > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/beagleboard/b4CG9YdoZK4/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > beagleboard+unsubscr...@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/beagleboard/g23s8cd87pfgojfaho0f8mb68ssu7cnls1%404ax.com. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAHmciabODo_rz1NUxYyFv_M-0eVYuoBFyms1OLr0C%3DffKukUbw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
