However, and possibly out of line, but should we consider submitting a patch to
remove the
pullups by default for exynos that Doug hinted at?
Cheers,
Karl P
On Wed, Oct 29, 2014 at 03:34:27PM +0100, NEO-Technologies / Julien CHAUVEAU
wrote:
> Hi everyone,
>
> Okay, I understand your
Hi everyone,
Okay, I understand your opinion. So let's drop my patch in this case.
Thank you for your comments.
Julien
Le 29/10/2014 15:02, Max Schwarz a écrit :
Hi,
I'll agree with Karl and Doug. If you (as a board vendor/maintainer/etc) want
to use I2C, it's *your* responsibility to
Hi,
I'll agree with Karl and Doug. If you (as a board vendor/maintainer/etc) want
to use I2C, it's *your* responsibility to provide the pullup resistors by
either including pullup resistors on the board or by enabling the internal
ones.
Either way, you should think a moment about the
I'd be more inclined to have pulls disabled by default, it's more standard with
what smaller
micros do, but I've no experience with these bigger cortex-a parts. It's also
the "least
surprise" path. If you want to try and use the onboard pullups, you can
specify that in your
board file, but
Hi Addy, Max, Wolfram,
after Doug's explanation of disfavour [0] and Julien's subsequent response I'm
not sure which direction to go. So if possible I'd like to collect some more
opinions of people knowing a lot more about i2c internals than myself :-) .
Thanks
Heiko
[0]
Hi Doug,
Le 29/10/2014 05:45, Doug Anderson a écrit :
Julien,
On Tue, Oct 28, 2014 at 3:36 AM, Julien CHAUVEAU
wrote:
According to the I2C bus specification, it is required to use pull-up resistors
on the clock and data lines. Probing the I2C busses with i2cdetect results in
bad results when
Hi Doug,
Le 29/10/2014 05:45, Doug Anderson a écrit :
Julien,
On Tue, Oct 28, 2014 at 3:36 AM, Julien CHAUVEAU
julien.chauv...@neo-technologies.fr wrote:
According to the I2C bus specification, it is required to use pull-up resistors
on the clock and data lines. Probing the I2C busses with
Hi Addy, Max, Wolfram,
after Doug's explanation of disfavour [0] and Julien's subsequent response I'm
not sure which direction to go. So if possible I'd like to collect some more
opinions of people knowing a lot more about i2c internals than myself :-) .
Thanks
Heiko
[0]
I'd be more inclined to have pulls disabled by default, it's more standard with
what smaller
micros do, but I've no experience with these bigger cortex-a parts. It's also
the least
surprise path. If you want to try and use the onboard pullups, you can
specify that in your
board file, but for
Hi,
I'll agree with Karl and Doug. If you (as a board vendor/maintainer/etc) want
to use I2C, it's *your* responsibility to provide the pullup resistors by
either including pullup resistors on the board or by enabling the internal
ones.
Either way, you should think a moment about the
Hi everyone,
Okay, I understand your opinion. So let's drop my patch in this case.
Thank you for your comments.
Julien
Le 29/10/2014 15:02, Max Schwarz a écrit :
Hi,
I'll agree with Karl and Doug. If you (as a board vendor/maintainer/etc) want
to use I2C, it's *your* responsibility to
However, and possibly out of line, but should we consider submitting a patch to
remove the
pullups by default for exynos that Doug hinted at?
Cheers,
Karl P
On Wed, Oct 29, 2014 at 03:34:27PM +0100, NEO-Technologies / Julien CHAUVEAU
wrote:
Hi everyone,
Okay, I understand your opinion.
Julien,
On Tue, Oct 28, 2014 at 3:36 AM, Julien CHAUVEAU
wrote:
> According to the I2C bus specification, it is required to use pull-up
> resistors
> on the clock and data lines. Probing the I2C busses with i2cdetect results in
> bad results when no devices are connected and no external
According to the I2C bus specification, it is required to use pull-up resistors
on the clock and data lines. Probing the I2C busses with i2cdetect results in
bad results when no devices are connected and no external resistors are used.
This patch configures the I2C busses to use the internal
According to the I2C bus specification, it is required to use pull-up resistors
on the clock and data lines. Probing the I2C busses with i2cdetect results in
bad results when no devices are connected and no external resistors are used.
This patch configures the I2C busses to use the internal
Julien,
On Tue, Oct 28, 2014 at 3:36 AM, Julien CHAUVEAU
julien.chauv...@neo-technologies.fr wrote:
According to the I2C bus specification, it is required to use pull-up
resistors
on the clock and data lines. Probing the I2C busses with i2cdetect results in
bad results when no devices are
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