lekernel changed the topic of #milkymist to: Mixxeo, Migen, MiSoC & other Milkymist projects :: Logs: http://en.qi-hardware.com/mmlogs
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<larsc>
hm, does somebody know if there is a possibility to tell par to be a bit more conservative with placement regarding to timing
<larsc>
I often have the problem that the post routing timing check fails with a couple of picoseconds off. And it is more or less random when this happens and where this happens
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<ysionneau>
anyone has any idea about my issue with PSW.dtlbe being cleared somehow?
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<ysionneau>
it seems that running a bit of code leads to PSW.dtlbe being cleared
<ysionneau>
I thought it was caused by some exception code, but I don't see where since dtlb miss only reads PSW and never writes to it
<ysionneau>
so exception followed by eret should do the usual edtlbe <= dtlbe; dtlbe <= 0; and upon eret : dtlbe <= edtlbe;
<larsc>
yeay, just got my mixxeo board
<larsc>
it's smaller than it looks in the brochures though ;)
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<ysionneau>
ah!
<ysionneau>
larsc: ask for a refund! :p
<ysionneau>
you've been lied to
<ysionneau>
I think since lekernel started to play with MEMS things he likes to do small things ;)
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<larsc>
but it is right on time, friday is the last day of work before a month vacation
<ysionneau>
ah :) enjoy vacation !
<ysionneau>
going somewhere? or just enjoying sitting idly in front of some screen @home?
<larsc>
first week will be my week off with nothing to do at all
<larsc>
and then the usual christmas roundtrip
<larsc>
visiting family, friends, etc
<larsc>
bought my four day 30c3 ticket yesterday, so I also have no excuse no to go there
<ysionneau>
héhé :)
<ysionneau>
it's cool that now you can buy tickets normally without destroying your mouse by overclicking
<larsc>
yep
<wpwrak>
because of larger space ?
<ysionneau>
yes
<ysionneau>
soon it's going to be the same for EHSM :)
* ysionneau
is ordering a new mouse
<ysionneau>
wpwrak: you should come by !
<wpwrak>
EHSM ? yeah, would be tempting
<ysionneau>
:)
<ysionneau>
come on, to visit the particule accelerator
<ysionneau>
or show us in real life some anelok prototypes!
<ysionneau>
you could probably even do a presentation at ehsm about it
<wpwrak>
phew. if i'm still at the prototype level in june, then i'm already well past declaring defeat :)
<ysionneau>
eheh sure
<ysionneau>
anyway, you could present your work, (investigation, how you chosed components, the criteria etc)
<ysionneau>
pcb process, case process
<ysionneau>
I'm sure it would be as interesting as those TLDR (as Too Long Do Read) emails of yours :)
<larsc>
hm, just wondered what WSH3 is...
<ysionneau>
dunno, what is it?
<larsc>
but turns out I was just holding the card upside down
* ysionneau
has a big EHSM poster in his appartment
<ysionneau>
very nice on a white wall
<ysionneau>
with a bullet passing through a graphic card's PCB :)
<wpwrak>
ysionneau: (tl;dr) bah. and i try to lighten them up with pictures. maybe i should get a kitten. then the internet will be all over the project :)
<ysionneau>
ahahah
<ysionneau>
your mails are very good!
<wpwrak>
"can i haz anelok ?"
<ysionneau>
the pictures are a very good idea
<larsc>
only if the kitten solders the board
<ysionneau>
I wouldn't be against 1 or 2 lolcat though :D
<ysionneau>
if you incist ;)
<lekernel>
ysionneau, you should get a 2014 poster, with a custom-made X-ray photograph of a hand soldering a board :)
<ysionneau>
oh, I just noticed it's a 2014 edition picture
<ysionneau>
picture looks really good :)
<wpwrak>
larsc: hmm, maybe a baby dragon then. they should be pretty good at soldering :)
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<larsc>
do I understand this correctly? when I have a OSERDES should fCLK = DATA_WIDTH x fCLKDIV
<larsc>
?
<lekernel>
yes
<lekernel>
and you have to use PLL + BUFPLL to generate those, and deal with a bunch of bugs, restrictions and various annoyances
<wpwrak>
the curse of success: eventually, people will want to run your stuff under windows ...
<ysionneau>
:D
<lekernel>
the behaviour of those is very confusing at times. for example, the BUFPLL will never lock unless its *output* clock is properly connected to a ISERDES/OSERDES ...
<larsc>
hm, ok thanks
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<larsc>
hm, I get the feeling that my laptop is not able to provide enough power on the usbport for the mixxeo board
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<rjo>
larsc: some usb hubs do in fact enforce the negotiated current limits. apple keyboard for example. others don't
<davidc__>
Some enforce at 500ma; and some just have anti-short protection (usually a PTC)
<davidc__>
.... and then the really cheap ones are limited by the maximum output of their power supply
<larsc>
the board just keeps reseting itself during the boot sequence
<lekernel>
larsc, try reflashing the ftdi-chip with the maximum current limit
<lekernel>
and good luck with the libftdi shitware... I'd recommend trying the windows tool
<lekernel>
boards were flashed with "MaxPower 0mA". doesn't cause problems on any of my computers.
<davidc__>
yeah, don't touch libftdi with a million foot pole
<davidc__>
Last time I had to do MFG-time serialization and programming of FTDI parts, I ended up rewriting libftdi in python since it wouldn't reliably program the EEPROM
<davidc__>
(nor did it even use the right format!)
<davidc__>
I might be able to dredge up + open-source that code if there's demand for it
<lekernel>
yeah, the quantity of bugs per line of code is mindboggling. I'd even bet it's higher than ISE's.
<larsc>
it worked when I booted the board for the first time, I got a bios promt and everything
<larsc>
but then at somepoint it started resetting itself
<larsc>
now after some cooldown time it is working again
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<mumptai>
i can only recommand those 7-port hubs with 4A PSUs
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<rjo>
anyone: any pointers to "the best USB hub"? 8-ports, supporting both self-powered and upstream-powered operation, stable, cascadable to the USB spec max, etc