Hi,
I've worked with TS-7200's quite a bit, but I've never touched a 7300, although
it appears to be interesting for a project I've got coming up, mainly because of
the extra comm ports, and the second ethernet port. I've read that this all
happens because of the FPGA "default bitstream", but that is all new to me,
and so naturally I tend to be a little skeptical of what I don't understand.
So, if you will indulge me for a moment, here are my questions, directed to
someone who has experience with the TS-7300.
1) Has anyone tried to use 6 comm ports at the same time? I have a system which
really needs 6 serial ports, all at a modest 9600 baud. I was hoping to have
6 independant processes talking to the 6 serial ports, and then I would have
another process get info from those other processes. I don't want to mess
with interrupts or thread locking... I just want to open the ports and use
them (actually I plan to use ser2net to do the dirty work). If there are
latencies of a few milliseconds while the system scans the various ports, I
can live with that, as long as it's no more than that.
2) I expect the com1 and com2 are /dev/AM0 and /dev/AM1, but does it continue
from there with /dev/AM2 - /dev/AM5? or is different? Do I have to
read/write to mmap'ed addresses?
3) Is the second ethernet port simply available as "ifconfig eth1", like any
other network interface? If it's only accessable via writing to an mmap'ed
address, then I don't think I want to go that route.
4) Is the VGA port really useful in X? I can envision plugging in a monitor,
along with a USB keyboard and mouse to give me a development/debugging area.
I'm not trying to do GUI development, but if I can have three xterms going,
one for editing, the other for compiling/debugging, another for monitoring,
and alt-tab between them while debugging, that would be pretty sweet.
5) What is the difference between using the built in TS-VIDCORE and the optional
"TS-7KV Multi-function Video for ARM" board? I get the idea that it's
basically the same, except by adding the card, it moves the load from the
TS7300's onboard FPGA processor to this additional FPGA.
6) Has anyone developed any Java Swing applications to run on the VGA? Nothing
fancy, but if I can have a typical screen with a bunch of labels for
displaying analog values it would save the cost/space/hassle of another PC
for that purpose (a low grade human machine interface).
7) For that matter has anyone developed any java applications which run on a
TS-7000, even without a GUI? What VM do you use?
Thank you in advance,
Joe Bouchard
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