| 08:27 | topi`> | Ke: if you manage to create a successful embedded controller to implement physical poweroff, please share the schematics with us :) |
| 08:27 | topi`> | i've wanted this, for many years |
| 08:27 | Ke> | you can do this at ATX level, though you would need to figure out, hot to power the controller itself |
| 08:27 | topi`> | my first attempt was with ATmega but I couldn't get a working TCP/IP stack running ont op of it |
| 08:28 | topi`> | problem is, I need to initiate the reset via tcp/ip |
| 08:28 | Ke> | some SBC, like rpi zero or something? |
| 08:29 | topi`> | yeah |
| 08:29 | Ke> | way hardest part is powering the board itself |
| 08:29 | topi`> | I'm familiar with the Allwinner boot procedure and linux hacks, so I tend to prefer OrangePI zero ;) |
| 08:29 | Ke> | sure |
| 08:30 | topi`> | also, OrangePIs replace the finicky microUSB power connection with a real barrel jack |
| 08:40 | Ke> | next on my list is rk3399-gru-kevin |
| 08:40 | Ke> | I'll need to get a working kernel |
| 08:41 | topi`> | if the cortex-a72 cores in rk3399 are as fast as in the 8040, that would make a very nice chip |
| 08:41 | topi`> | it does have 1 MB of L2 cache, so theoretically it could go somewhere |
| 08:42 | Ke> | they should "Paul" metioned that Gnome was actually useable there with sw acceleration |
| 08:42 | Ke> | IIRC |
| 08:42 | topi`> | wow, then there's no bigger ram bandwidth bottleneck |
| 08:42 | topi`> | like what we see on the i.MX6, making sw acceleration quite unusable |
| 08:43 | Ke> | obviously some people are more patient than others |
| 08:43 | topi`> | nobody expects it to be lightning fast :) |
| 08:44 | Ke> | I use xmonad anyway, so even old rk3288 is fast enough for me |
| 08:44 | Ke> | but rk3399 might have working virtualization and 64-bit system |
| 08:44 | topi`> | xmonad rocks :D we seem to have same taste when it comes to window managing |
| 08:44 | Ke> | also there is a cover for the SD card slot so your rootfs does not get unmounted every now and then |
| 08:52 | topi`> | I don't want a rootfs on SD card |
| 08:52 | topi`> | emmc is the minimum |
| 08:52 | topi`> | sub-optimal, but somewhat reliable |
| 08:53 | topi`> | Ke: what kind of machine is your gru-kevin? It sounds like a chromebook... |
| 08:53 | topi`> | I got myself a Lenovo N23 yoga, but it's based on the Mediatek 8173 |
| 08:54 | topi`> | unfortunately |
| 09:41 | Ke> | topi`: Samsung chromebook plus |
| 09:41 | Ke> | I prefer SD to eMMC, as SD is user replaceable |
| 10:00 | topi`> | emmc has hardware protection for boot area :) |
| 10:00 | topi`> | as long as UBOOT loads, everything is up for grabs |
| 10:01 | topi`> | if you need an alternate kernel loading facility, use altbootcmd |
| 10:01 | Ke> | perhaps, if you don't have the local access |
| 10:01 | topi`> | or you can boot from a M.2 disk, they can also be swapped/replaced |
| 10:02 | topi`> | do you have a Clearfog? they can nicely boot from M.2 |
| 10:03 | Ke> | no I don't |
| 10:04 | jnettlet[m]> | The HB2 boards can also boot from m.2 |
| 11:35 | vpeter> | Is there any nice documentation about using gpio on clearfog pro? |
| 12:02 | jnettlet[m]> | vpeter: we haven't implemented wiringX support for the Clearfogs yet. We are trying to get a universal standard mapping for the mikrobus, however that has stalled for the moment. |
| 12:03 | jnettlet[m]> | do you just need to know the number mappings? |
| 12:10 | vpeter> | I don't ned any lib. Just need to use one gpio on/off. Nothing special. So mapping is needed. |
| 12:11 | vpeter> | Like at the end https://wiki.solid-run.com/doku.php?id=products:a38x:clearfog |
| 12:25 | jnettlet[m]> | vpeter: they use the same mpp number that is in the device-tree file. the int gpio is 22 and the reset gpio is 29 |
| 12:29 | vpeter> | Ok, I think I got it. Will try to turn one led when back home. |
| 17:01 | vpeter> | topi`: Did you ask about clearfog pro networking? Look this https://forum.armbian.com/topic/6502-clearfog-pro-41414-network-manager-fails/?tab=comments#comment-49564 |
| 18:56 | vpeter> | jnettlet[m]: gpio on clearfog is 3.3V or 5V ? |
| 18:57 | jnettlet[m]> | 3.3 |
| 19:01 | vpeter> | Then I was right. But asked just in case :-) |
| 19:15 | vpeter> | echo 1 > value # LED is on |
| 19:15 | vpeter> | echo 0 > value # LED is off |
| 19:15 | vpeter> | Phase one completed. Moving to phase 2: making a switch with transistor to turn HDD on/off. Ordering transistor :) |