Hello Robert, Thanks for your reaction. I understand /dev/ttyOx has been replaced by /dev/ttySx (x from 0-5). However the rest is far beyond my level of skill. I do not know what dt overlay I load. I just flashed the latest Debian version. And then updated all (sudo apt-get update). I do not understand C, just a bit of Python. I need to use the UARTs 2 and 4. and of course a number of I/O bits. I hope that is still the same? I can and are prepared to move to the latest versions, just need to know what to do.... Regards, Harke
On 29 January 2017 at 20:03, Robert Nelson <[email protected]> wrote: > On Sun, Jan 29, 2017 at 12:50 PM, Harke Smits <[email protected]> wrote: > > 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? > > Well, userspace changed from: /dev/ttyOx -> /dev/ttySx, by default we > have a udev rule setup to allow you to use /dev/ttyOx > > However if you are loading a device tree overlay from the 3.8.13 era, > you need to update the device tree node name. > > for example usart 2: (today) > > https://github.com/beagleboard/bb.org-overlays/ > blob/master/src/arm/BB-UART2-00A0.dts#L47 > > usart2 (yesterday with 3.8.13) > > https://github.com/beagleboard/linux/blob/3.8/ > firmware/capes/BB-UART2-00A0.dts#L41 > > As you might have other issues causing the blockage, please add the output > off > > dmesg | grep bone > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAHmciabhdh92RjbOCgcq-wiyuN7fOf%3D%3DVy-MoXf_Td_7vYYTLw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
