Re: [Discuss-gnuradio] Questions about E100

[Philip Balister]

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:
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> Hi,
>
> 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
> gnuradio?

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:

http://ettus-apps.sourcerepo.com/redmine/ettus/projects/usrpe1xx/wiki/Install_OpenEmbedded

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.

Philip

> - --
>   (o_   Stefan Gofferje            | SCLT, MCP, CCSA
>   //\   Reg'd Linux User #247167   | VCP #2263
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