IRC log of #cubox of Wed 07 Oct 2015. All times are in CEST < Back to index

10:05 topi`_ has anyone successfully used more than 1 UART on HB?
10:20 Humpelstilzchen topi`: doesn't it only have 1 uart on the io headers?
11:12 topi` Humpelstilzchen: indeed, but since the i.MX6 has several UARTs and they're muxable on those same output pins, I'd bet there is a way...
11:13 topi` perhaps I have to wait for jnettlet to reappear :)
11:16 vpeter topi`: Isn't this just a matter of defining new uart in device tree and set correct pins for it?
11:20 topi` I'd guess so
11:20 topi` but i'm not an expert on device trees
11:21 vpeter let me show it.
11:26 Humpelstilzchen topi`: I havn't found any and I checked all muxes
11:26 Humpelstilzchen topi`: there is always usb..
11:26 vpeter topi`: this is for udoo - http://pastebin.com/e2XJwwjy
11:27 vpeter You need to check if correct pins are available on some gpio pins.
11:34 Humpelstilzchen the hb2 might have uarts
11:35 Humpelstilzchen oh the solid-run homepage doesn't work
13:12 Gluino what's the latest version of the kernel for the HB ? and where can i find it ?
13:28 Artox Gluino: 3.14.53 is the latest that SR provides
13:29 Artox other than that, mainline works too
13:29 Artox https://github.com/SolidRun/linux-fslc
13:29 Artox your favorite distro should ofc also have it
13:29 Gluino so what's the difference between SR kernel and others ?
13:29 Artox "others"
13:29 Artox I can only talk about SR, and mainline
13:30 Artox cause thats all I know
13:30 Artox SR developers made sure that all hardware features work properly, and that the system runs stable.
13:30 Gluino when i tried mainline, there were no device tree
13:30 Artox and they made sure that all advertised features work, such as VPU, GPU
13:31 Artox when I tried mainline, it worked
13:31 Artox and there were
13:41 Gluino ok, i'll try
14:45 topi` Ignition fails, "couldn't resolve download.solid-run.com" in the debug dialog
14:46 vpeter topi`: DNS problem on your computer?
14:46 topi` oddly enough, "curl http://download.solid-run.com/" works on my macbook (connected to the same wifi)
14:55 topi` I've had nothing but problems with Ignition, maybe I just need to flash a readymage image
14:55 topi` readymade
16:30 topi` I managed to install Debian/WHeezy from Ignition's offerings, but now I have a black HDMI screen after "successfully installing"
16:30 topi` the U-Boot screen does appear normally
16:31 topi` hm, the monitor is blinking, so there's no HDMI signal at all
16:32 Artox topi`, did you install XFCE or CLI
16:32 Artox if XFCE, jsut give it some time
16:32 Artox first boot is slow
16:37 topi` what?? CPU1: failed to boot: -38
16:37 topi` that's what I got on the serial wire
16:37 topi` Artox: the CLI variant, but it started up now. for reasons pretty much unknown
16:38 Artox good
16:38 Artox so its an i1?
16:38 Artox as far as I know (and I dont know much) its trying to boot all CPUs, until it fails, and then settles that all have been found
16:39 topi` OK :)
16:40 topi` darn the debian/wheezy is SLOW to boot compared to jessie
16:40 topi` I've been spoiled by jessie :)
16:40 topi` or bsically any modern Linux that has dropped ancient sysv init
16:49 topi` what do I have to remember to take off in order to use the ttymxc0 from my application?
16:50 topi` I need to talk to another module over UART. So I don't want interference from gettys etc
16:50 topi` I took serial console off of /etc/inittab, but how do I disable kernel from writing to UART?
16:58 Artox topi` check uEnv.txt
16:58 Artox console=ttymxc0,115200
16:58 Artox you want to get rid of that piece
16:59 Artox or so I think
16:59 Artox make sure that a console=tty stays
17:01 topi` right
17:02 topi` the only good thing about the SD card is that you can just put it in your macbook and fix the damn uEnv.txt after screwing it up ;)
17:07 vpeter topi`: Or you can use USB Mass Storage directly from u-boot :)
17:13 topi` oh?
17:13 topi` that'd be useful with the upcoming HB Edge when booting from its eMMC
17:14 vpeter check if you have command named ums in u-boot.
17:52 topi` it seems there are two UARTs identified by this kernel. ttymxc0 and ttymxc3
17:52 topi` I wonder where the latter is going...
17:53 Artox 3 is going to Bluetooth, topi`
18:41 Humpelstilzchen topi`: bluetooth