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Groups > comp.os.linux.embedded > #920 > unrolled thread

Addressing on I2C

Started byZOT <pasmoi@pasici.us>
First post2021-03-19 09:33 +0100
Last post2021-03-19 10:29 +0100
Articles 5 — 3 participants

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  Addressing on I2C ZOT <pasmoi@pasici.us> - 2021-03-19 09:33 +0100
    Re: Addressing on I2C David Brown <david.brown@hesbynett.no> - 2021-03-19 10:07 +0100
      Re: Addressing on I2C Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2021-03-19 10:37 +0100
        Re: Addressing on I2C David Brown <david.brown@hesbynett.no> - 2021-03-19 11:28 +0100
    Re: Addressing on I2C Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2021-03-19 10:29 +0100

#920 — Addressing on I2C

FromZOT <pasmoi@pasici.us>
Date2021-03-19 09:33 +0100
SubjectAddressing on I2C
Message-ID<s31nl6$1vf2$1@gioia.aioe.org>
Are they some 'reserved' 'well known' addresses on i2c?
-- 
Les politiciens sont imprévoyants, les électeurs sans mémoire.

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#921

FromDavid Brown <david.brown@hesbynett.no>
Date2021-03-19 10:07 +0100
Message-ID<s31pk2$9pb$1@dont-email.me>
In reply to#920
On 19/03/2021 09:33, ZOT wrote:
> Are they some 'reserved' 'well known' addresses on i2c?

No.  You only have 7 bits for the address - that is too small a range to
be able to reserve addresses for particular purposes.

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#923

FromStef <stef33d@yahooI-N-V-A-L-I-D.com.invalid>
Date2021-03-19 10:37 +0100
Message-ID<nnd$7558435a$1bff445a@67921790045d0e94>
In reply to#921
On 2021-03-19 David Brown wrote in comp.arch.embedded:
> On 19/03/2021 09:33, ZOT wrote:
>> Are they some 'reserved' 'well known' addresses on i2c?
>
> No.  You only have 7 bits for the address - that is too small a range to
> be able to reserve addresses for particular purposes.

And even in that small range, there are reserved and allocated addresses,
see other post.

-- 
Stef    (remove caps, dashes and .invalid from e-mail address to reply by mail)

knowledge, n.:
	Things you believe.

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#924

FromDavid Brown <david.brown@hesbynett.no>
Date2021-03-19 11:28 +0100
Message-ID<s31ubn$ad2$1@dont-email.me>
In reply to#923
On 19/03/2021 10:37, Stef wrote:
> On 2021-03-19 David Brown wrote in comp.arch.embedded:
>> On 19/03/2021 09:33, ZOT wrote:
>>> Are they some 'reserved' 'well known' addresses on i2c?
>>
>> No.  You only have 7 bits for the address - that is too small a range to
>> be able to reserve addresses for particular purposes.
> 
> And even in that small range, there are reserved and allocated addresses,
> see other post.
> 

I stand corrected.  Thank you.

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#922

FromStef <stef33d@yahooI-N-V-A-L-I-D.com.invalid>
Date2021-03-19 10:29 +0100
Message-ID<nnd$1f72a84f$138befc1@1df8eaa44948f027>
In reply to#920
On 2021-03-19 ZOT wrote in comp.arch.embedded:
> Are they some 'reserved' 'well known' addresses on i2c?

A little search shuld get you started. ;-)
https://www.csd.uoc.gr/~hy428/reading/i2c_spec.pdf
https://i2c.info/i2c-bus-specification
https://en.wikipedia.org/wiki/I%C2%B2C

-- 
Stef    (remove caps, dashes and .invalid from e-mail address to reply by mail)

If you didn't have to work so hard, you'd have more time to be depressed.

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