On 02/15/2015 09:19 PM, David Fleming via Elecraft wrote:
Let me try that again with fewer typos. Sometimes my typing outruns my brain.
It should be possible. I'm not sure how well a Qemu x86 VM would perform on a
mini ARM rig like a Raspberry Pi or Beaglebone. Qemu can only run on one core.
That is, it can emulate multiple CPUs, but it does this in a single thread,
IIRC. And I suspect getting it up and running would be a challenge. A better
option might be Exagear Desktop. It is like Qemu but much faster. Like 4x
faster. But it is not free ($30). Exagear Desktop on a Raspberry Pi 2 Model B
should run 32-bit Linux x86 applications nicely (like the Elecraft Utilities).
I figure Exagear is worth the money just for the performance advantage. It
could be an awesome little system for around $75 (if you already have a HDMI
monitor and a keyboard). I've been seriously considering ordering one just to
play with.
I just tried to boot 32bit intel fedora 21 live image under ARM qemu (on
banana pi). This is REALLY slow and even speeding up by a factor of 4 is
not going to help much. I did not have enough patience to get the whole
thing to boot up to the desktop, so I concluded that this will not work
in practice.
It shouldn't be that difficult to cross-compile the K3 utility for ARM
(unless they are using some strange development tools that don't support
this). Since everything else works now, I will go the ARM way with my
station. If I need to update the K3 firmware, I will visit someone with
a PC. Hopefully Linux/ARM will be supported in the future.
Jussi (AA6KJ)
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