sb0 changed the topic of #m-labs to: ARTIQ, Migen, MiSoC, Mixxeo & other M-Labs projects :: fka #milkymist :: Logs http://irclog.whitequark.org/m-labs
[florian1 is now known as [florian]
[florian] has quit [Changing host]
[florian] has joined #m-labs
mumptai_ has joined #m-labs
sb0 has joined #m-labs
mumptai has quit [Ping timeout: 255 seconds]
rohitksingh_work has joined #m-labs
rohitksingh_work has quit [Ping timeout: 240 seconds]
key2 has quit [K-Lined]
gric has quit [K-Lined]
kristianpaul has quit [K-Lined]
kyak has quit [K-Lined]
zumbi has quit [K-Lined]
jaeckel has quit [K-Lined]
ysionnea1 has quit [K-Lined]
stekern has quit [K-Lined]
kaalia has quit [K-Lined]
[florian] has quit [K-Lined]
siruf has quit [K-Lined]
ohama has quit [K-Lined]
folkert has quit [K-Lined]
early has quit [K-Lined]
shenki_ has quit [K-Lined]
sandeepkr has quit [K-Lined]
cedric has quit [K-Lined]
ohsix has quit [K-Lined]
bb-m-labs has quit [K-Lined]
Ultrasauce has quit [K-Lined]
rjo has quit [K-Lined]
kuldeep has quit [K-Lined]
attie has quit [K-Lined]
acathla has quit [K-Lined]
wolfspraul has quit [K-Lined]
cr1901_modern has quit [K-Lined]
balrog has quit [K-Lined]
felix_ has quit [K-Lined]
larsc has quit [K-Lined]
bb-m-labs has joined #m-labs
folkert has joined #m-labs
mumptai_ has quit [K-Lined]
sb0 has quit [K-Lined]
ohsix has joined #m-labs
early has joined #m-labs
kaalia has joined #m-labs
cr1901_modern has joined #m-labs
Ultrasauce has joined #m-labs
cedric has joined #m-labs
jaeckel has joined #m-labs
cedric has quit [Changing host]
cedric has joined #m-labs
balrog has joined #m-labs
acathla has joined #m-labs
kuldeep has joined #m-labs
rjo has joined #m-labs
rjo has quit [Signing in (rjo)]
rjo has joined #m-labs
sandeepkr has joined #m-labs
rohitksingh_work has joined #m-labs
larsc has joined #m-labs
attie has joined #m-labs
kyak has joined #m-labs
kyak has joined #m-labs
<_florent_>
sb0: I haven't made progress on the DAC clocking yet. I'll work on that but that would be good to synchronize with greg/joe since on my side I'm not able to observe the quality of the generated clock.
<_florent_>
sb0: for the inconsitency on DDR input/out, that's probably due to copy/paste between projects and would have need a code review as you are actually doing
<_florent_>
sb0: on the RGMII phy, the DCM is used for a 90°phase shift of the rx clk
sb0 has joined #m-labs
<sb0>
_florent_, yes, but why is it needed? this looks like an ad-hoc fix for your board.
<sb0>
_florent_, the clock is so bad that I think you should be able to observe the problem easily, no?
<sb0>
_florent_, we can certainly capture the hmc830 output here
felix_ has joined #m-labs
wolfspraul has joined #m-labs
<_florent_>
sb0: for RGMII, if phy/board is configured/designed to present a 90°phase shift clock to the FPGA, yes that's not needed. That was probably not the case for the board I tested and you are probably right, this should be an option.
<sb0>
it should actually be moved out completely of the core and put in the platform file
<_florent_>
sb0: thanks if you can capture the hmc830 output
<_florent_>
sb0: yes probably
<sb0>
e.g. patch the pins object to shift the clock
<sb0>
aren't most synchronous systems designed so that you can, in most cases assuming reasonable pcb/chip characteristics, put a FF directly on the provided clock sampling the provided data?
<_florent_>
sb0: is it on a spartan6 or an artix7 you want to have rgmii?
<sb0>
kintex ultrascale
<sb0>
it's for the sayma board
<sb0>
i've already rewritten the phy to use DDRInput/DROutput and removed the clock chip