User talk:G3vbv

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Welcome to Ghpsdr3 SDR project! We hope you will contribute much and well. You will probably want to read the help pages. Again, welcome and have fun! Ve9gj 20:41, 26 November 2011 (AST)

Installing on ODROID-X

The wiki lists a number of Ubuntu pre-req packages to be installed which are probably needed for other SDR software building apart from ghpsdr3-alex.

If you are building ghpsdr3-alex, the following configure options apply. "./configure CFLAGS='-O3 -pipe -mfpu=neon -fno-tree-vectorize -fopenmp' CXXFLAGS='-O3 -pipe -mfpu=neon -fno-tree-vectorize -fopenmp'"

  • Use a small fan above the CPU module. It gets hot and will power down on large builds especially with "make -j 4".

There is a HDMI image and a LCD image if you have the hardkernel LCD display.

  • After burning the image you can mount partition 3 and set up /etc/hosts, /etc/resolv.conf, /etc/network/interfaces as necessary - fixed addresses or dhcp.

I am using fixed addresses, 192.168.10.x for my main LAN and 192.168.2.x is a Gigabit Ethernet LAN for my HiQSDR.

Where a 1 appears below it's meant to be a hash - commenting out the line.

  1. cat /etc/network/interfaces

auto lo iface lo inet loopback

  1. The primary network interface

auto eth0

iface eth0 inet static







  1. Example to keep MAC address between reboots
  1. hwaddress ether DE:AD:BE:EF:CA:FE

auto eth1

iface eth1 inet static





  1. auto wlan0
  1. iface wlan0 inet dhcp

  • The image burns 4GB on to a SD card. I started with a 16GB card and used gparted on a x86_64 PC to extend the rootfs partition 3. I now have a 32GB card in use.

I attached a 160GB USB HD and mounted it on the ODROID-X so I could generate the 16GB image and also do local kernel and other software builds - it's a pleasure to build kernels without cross compiling or do it natively while I wait for springtime to arrive.

"dd if=/dev/mmcblk0 of=<160GB_MOUNT_POINT>/ODROID-X_16GB.img bs=1M" and copied it to the PC with the scp command.

  • Moving the card back to the PC where the card was detected as /dev/sdc

"dd if=/ODROID-X_16GB.img of=/dev/sdc bs=1M", use gparted to extend partition 3 to use the full 32GB.

Of course you could NFS mount the ODROID-X SD card to do some operations after the SD card setup and the ODROID-X is booted.

  • An enclosure - I made up a U-shaped aluminium enclosure with open sides and holes for the Ethernet and USB sockets at the back, a piece of L-shaped perspex screwed on top to hold the fan.

The P.S is a 5V 2A wall wart I diverted from a USB hub.