Re: Camera I/F's

From	Don Y <blockedofcourse@foo.invalid>
Newsgroups	comp.arch.embedded
Subject	Re: Camera I/F's
Date	2017-07-09 09:21 -0700
Organization	A noiseless patient Spider
Message-ID	<ojtkvr$o76$1@dont-email.me> (permalink)
References	<ojr6lv$188$1@dont-email.me> <ojr85a$64m$1@dont-email.me> <ojrfqb$t70$1@dont-email.me> <ojrnif$n60$1@dont-email.me>

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>> [Still 40+C every day.  18 consecutive days with a high temperature
>> above 40C.  Those huge icicles sure would be nice right about now!  :> ]
> 
> We had 2-3 hot days (up to 38C) and then a cold wave came, now we are
> below 30. Pretty good during the day but the nights get below 20C,
> pretty unusual for July here. All that with the very long winter we had,
> average annual temperatures will likely be way below the norm.

Our *nights* just barely fall below 30C.  Average 24 hour temperature
is often 30C+.  Rains will start (hopefully) soon to moderate these
temperatures a bit (maybe 5-7C) -- at the expense of humidity.

>> On 7/8/2017 11:30 AM, Dimiter_Popoff wrote:
>>> On 08.7.2017 г. 21:05, Don Y wrote:

>>>> Relying on CSI seems like it will restrict my choice of processor(s)
>>>> going forward (I'd like to standardize on *a* host platform and not
>>>> have to support a variety) -- though that's where the volume lies
>>>> (think camera in cell phones).  OTOH, it may make getting components
>>>> difficult (small fish, etc.)
>>>>
>>>> IP seems to have more costs than USB with little/no gain.
>>>>
>>>> Anyone been down this road who can share experiences?  Probably
>>>> only looking at 10K/yr...
>>>
>>> The obvious choice would be the MIPI cameras - like in every phone.
>>
>> Yes, MIPI being the backers of the CSI approach.  Its great appeal
>> is so few conductors to the camera and megapixel support!
>>
>>> A few years ago I looked into that; I found out they (MIPI) had some
>>> special (politburo) membership fee if you were a "small enterprise",
>>> "small" meant if you had < $100M annual revenue IIRC...
>>
>> I'd be more worried about actually getting *parts* than "specs"
>> (which is what the "membership fee" provides).  There's a point
>> (sales volume) below which folks addressing markets with HUGE
>> customers simply don't want to be bothered.
>>
>> Or, you worry about the part being "on allocation", etc.
> 
> I don't see how I can get to these worries. The CSI specification is
> "members only".

Yes.  But paying for membership can be a one-time thing (to access
specs).  Or, accessed by "other means"...  :>

> Then this market is so huge there will always be some stock unless
> you are after the latest versions. Or if you want to go into the
> volumes of say Samsung but in this case you'd have allocation
> issues whatever type you go for, probably worse than with mipi.

It's often an issue of finding someone willing to *talk* to you
for orders that are considered "tiny".  You'd be dealing
direct with the manufacturer so wouldn't really have any leverage
with a local disti (you might be a "big customer" to a local disti
but small-fry to the manufacturer).

Dunno.  It's always a crap shoot trying to guess where the *practical*
market is headed so you don't design in the "right" device for the
application only to discover its the *wrong* device for the "product".

Thread

Camera I/F's Don Y <blockedofcourse@foo.invalid> - 2017-07-08 11:05 -0700
  Re: Camera I/F's Dimiter_Popoff <dp@tgi-sci.com> - 2017-07-08 21:30 +0300
    Re: Camera I/F's Don Y <blockedofcourse@foo.invalid> - 2017-07-08 13:41 -0700
      Re: Camera I/F's Dimiter_Popoff <dp@tgi-sci.com> - 2017-07-09 01:53 +0300
        Re: Camera I/F's Don Y <blockedofcourse@foo.invalid> - 2017-07-09 09:21 -0700
  Re: Camera I/F's Joe Chisolm <jchisolm6@earthlink.net> - 2017-07-08 17:06 -0500
    Re: Camera I/F's Don Y <blockedofcourse@foo.invalid> - 2017-07-09 09:46 -0700
  Re: Camera I/F's Paul <paul@pcserviceselectronics.co.uk> - 2017-07-09 11:58 +0100
    Re: Camera I/F's Don Y <blockedofcourse@foo.invalid> - 2017-07-09 09:55 -0700
      Re: Camera I/F's Theo Markettos <theom+news@chiark.greenend.org.uk> - 2017-07-10 10:09 +0100
        Re: Camera I/F's Paul <paul@pcserviceselectronics.co.uk> - 2017-07-10 12:27 +0100
          Re: Camera I/F's Theo Markettos <theom+news@chiark.greenend.org.uk> - 2017-07-10 19:36 +0100
        Re: Camera I/F's Don Y <blockedofcourse@foo.invalid> - 2017-07-10 12:56 -0700

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