Daily Archives: 2014-03-16

VoCore’s OpenWrt State

  PID USER       VSZ STAT COMMAND
    1 root      1344 S    /sbin/procd
    2 root         0 SW   [kthreadd]
    3 root         0 SW   [ksoftirqd/0]
    4 root         0 SW   [kworker/0:0]
    5 root         0 SW<  [kworker/0:0H]
    6 root         0 SW   [kworker/u2:0]
    7 root         0 SW<  [khelper]
    8 root         0 SW   [kworker/u2:1]
   63 root         0 SW<  [writeback]
   65 root         0 SW<  [bioset]
   67 root         0 SW<  [kblockd]
   90 root         0 SW   [kworker/0:1]
   96 root         0 SW   [kswapd0]
  141 root         0 SW   [fsnotify_mark]
  165 root         0 SW   [spi32766]
  205 root         0 SW<  [deferwq]
  256 root         0 SW   [khubd]
  331 root       884 S    /sbin/ubusd
  332 root      1496 S    /bin/ash --login
  413 root         0 SW<  [cfg80211]
  562 root      1312 S    /sbin/logd
  575 root      1512 S    /sbin/netifd
  616 root      1488 S    /usr/sbin/telnetd -F -l /bin/login.sh
  654 nobody     964 S    /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf -k
  734 root      1496 S    udhcpc -p /var/run/udhcpc-eth0.2.pid -s /lib/netifd/dhcp.script -f -t 0 -i eth0.2 -C
  760 root         0 SWN  [jffs2_gcd_mtd5]
  792 root      1160 S    /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22
  797 root      1496 S    /usr/sbin/ntpd -n -p 0.openwrt.pool.ntp.org 1.openwrt.pool.ntp.org 2.openwrt.pool.ntp.org 3.openwrt.pool.
Filesystem           1K-blocks      Used Available Use% Mounted on
rootfs                    5184       268      4916   5% /
/dev/root                 1792      1792         0 100% /rom
tmpfs                    14788        44     14744   0% /tmp
tmpfs                    14788         8     14780   0% /tmp/root
tmpfs                      512         0       512   0% /dev
/dev/mtdblock5            5184       268      4916   5% /overlay
overlayfs:/overlay        5184       268      4916   5% /

vocore.bin size 2883588(0x2c0004) => download here. In bootloader, use loadb command to transfer it from local to vocore memory. Then call cp.linux 2c0004 to copy it to flash. If there already exists old linux, call erase linux to delete old one.

The offical bootloader loadb command might not working. We have to change some code on its uboot. Details here: https://forum.openwrt.org/viewtopic.php?id=44472

VoCore v0.3 solid done

VoCore v0.3 solid is done 🙂 Here is the picture.

不再有飞线的和平世界 ^_^

IMG_20140316_225525

It is night, a little dark.

I am lucky, the first time I connect it to 3.3V, success into boot loader and linux system.

Bad news is wifi do not work at all.

Good news is I just find the problem in two minutes. There are two inductance on the antenna, one should be 2.2nH and another should be 2.7nH, but the real one I solid onto the board is 2.2uH and 2.7uH…Thousand times bigger than my schematic value. The careless seller send me the wrong inductance. I have to wait them send the right one and test wifi part later.

3.3V/0.3A = 1W: run linux with wifi on/ethernet on(two ports).

3.3V/0.25A = 0.825W: run linux with wifi on.

3.3V/0.15A = 0.495W: run linux with wifi off.