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#apertus IRC Channel Logs

2016/05/10

Timezone: UTC


00:28
Napejts
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LurkUpTable
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02:06
jucar
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02:37
LurkUpTable
Hey, guys! Have you seen that Craft Camera? (http://www.craftcamera.com)
02:40
LurkUpTable
May be interesting to analyze their modular design to expand ideas for the Gamma?
02:53
LurkUpTable
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03:12
Spirit532
Aw, he quit before I could tell him the truth
03:51
Bertl_zZ
changed nick to: Bertl
03:51
Bertl
morning folks!
03:52
Bertl
well, it's not the first time somebody falls for it and it won't be the last time
04:19
Spirit532
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arpu
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arpu
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06:31
se6astian|away
changed nick to: se6astian
06:31
se6astian
good morning
07:18
kaiserlich
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Guillaume_Chooks
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09:15
RexOrCine
LurkUpTable is a good name.
09:17
se6astian
indeed :)
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fredy
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fredy
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10:30
Napejts
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10:32
Napejts
huhu
10:32
Napejts
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fredy
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fredy
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11:38
se6astian
please help us find interesting image sensors for the future and add them to this table: https://wiki.apertus.org/index.php/Image_Sensor_Table
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kaiserlich
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Dan1
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Dan1
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jucar
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Dan1
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14:08
Dan1
hello sebastian
14:08
se6astian
hello sebastian!
14:12
Bertl
hello se6astian! :)
14:13
se6astian
hello Bertl!
14:15
Bertl
hello Dan1!
14:17
Dan1
Hello Bertl
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Dan1
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14:38
Bertl
off for now ... bbl
14:38
Bertl
changed nick to: Bertl_oO
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jucar
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15:14
se6astian
gotta go
15:14
se6astian
changed nick to: se6astian|away
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Spirit532
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fredy
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fredy
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16:28
Guillaume_Chooks
off for holidays few days... 8h of road now ! Sebastian, send me an email when you receive 3d print parts, hope nothing will be broke !
16:30
techydude
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Guillaume_Chooks
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16:34
techydude
hey @Bertl_oO , VCCIO_34 & _35 on Zynq are 2.5V, but VCCIO on MachX02 is 3.3, right? Doesn't that mean the SPI bus (repurposed from the 2 LVDS pairs) between the two is mismatched? (SDI from Mach to Zynq is over-driving 3.3 into 2.5, and SDO, SCK & SPI_EN from Zynq to Mach is under-driving 2.5 into 3.3, where Vhi threshold for Mach is 2.0, so only 500mV margin)?
16:35
Napejts
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Napejts
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16:40
Bertl_oO
techydude: the communication between Zynq and MachXO2 is designed to run over LVDS
16:43
Bertl_oO
so yes, the current (software) solution is out of spec, unless you change the RF IO voltages to 2.5V
16:45
techydude
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se6astian|away
changed nick to: se6astian
17:07
Napejts
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techydude
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17:29
Bertl_oO
techydude: see irc log
17:30
sebix
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17:41
techydude
if by "software" you mean the SPI master in Zynq VHDL, and VHDL in the MachX02 to wire that SPI right across to the Sensor's SPI, then yes. So what voltage are you running SH_SE_VIO (aka RFE_V) at currently? Wiki (https://wiki.apertus.org/index.php/AXIOM_Beta_Software) suggest 3.3V......
17:43
Bertl_oO
yes, but as I said, the communication between Zynq and RFE is designed to be LVDS ... John_K had somebody work on that IIRC
17:43
Bertl_oO
and for LVDS, the IO voltage does not matter, as long as the pins are configured correctly
17:49
sebix
changed nick to: niemand
18:02
techydude
He's still working on it, once it's in a public-facing state you'll be the first to know :), but his modular appraoch is to first emulate the SPI i/f to Zynq, then later it can be replaced by LVDS.
18:03
techydude
so what V have you currently got SH_SE_VIO set to?
18:03
Bertl_oO
3.3V
18:41
techydude
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fredy
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fredy
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illwieckz
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illwieckz
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illwieckz
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20:59
se6astian
I am off to bed
21:21
niemand
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se6astian
changed nick to: se6astian|away