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Re: [Discuss-gnuradio] Questions about E100

From: Philip Balister
Subject: Re: [Discuss-gnuradio] Questions about E100
Date: Thu, 28 Apr 2011 15:27:50 -0400
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There have been a lot of good answers already. Thanks guys!

If you are having trouble figuring out what a USRP-E100 is, look at the gumstix website. The E100 is basically a Gumstix Overo expansion board with an FPGA and codec to interface to a USRP daughterboard.

On 04/28/2011 02:26 PM, Stefan Gofferje wrote:
Hash: SHA1


as far as I understand, the E100 is a complete standalone system. I'm
just a bit irritated by the descriptions "Console (USB)" and USB
on-the-go. I assume, console USB is a serial console via some getty to
ttyUSBx? How am I supposed to use it? Adaptor USB->Mini-USB and a
USB-Serial adaptor?
What is USB on-the-go?

These terms come from the Gumstix/mobile computing world. The USB console is a usb to serial convertor. Rather than have you provide the usb to serial dongle, the convertor is in the E100 so you can connect directly to the E100 with a USB 1 to mini B cable.

How about the software? Is the box x86 compatible or do I have to wait
for Ettus to create some kind of software image if there is an update of

The processor is a TI OMAP3, which is basically an ARM Cortex A8 machine (armv7a+NEON instruction set). Yes, lots of confusing numbers and names in the ARM processor space.

And finally - how about the performance? Does the box run X? Is it
powerful enough to run grc-created WX-stuff?

It runs gnuradio-companion and qt. It is not a desktop class machine, but it is a gateway to small standalone SDR system and mobile SDR solutions.

I've started a document on doing your own image builds based on the OE release branch here:


The kernels from Gumstix won't work (no driver) and their u-boot has a clash with the gpmc config. (I'm working on resolving this) Their MLO is fine.

Long term, we should be able to draw on the work of the larger Yoctoproject to make embedded development easier.


- --
  (o_   Stefan Gofferje            | SCLT, MCP, CCSA
  //\   Reg'd Linux User #247167   | VCP #2263
  V_/_  Heckler&  Koch - the original point and click interface
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