From: "Michal Vokáč" <michal.vokac@ysoft.com>
To: Jonathan Cameron <jic23@kernel.org>, Andreas Klinger <ak@it-klinger.de>
Cc: robh+dt@kernel.org, mark.rutland@arm.com, mripard@kernel.org,
shawnguo@kernel.org, heiko@sntech.de, icenowy@aosc.io,
laurent.pinchart@ideasonboard.com, knaack.h@gmx.de,
lars@metafoo.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org,
christophe.jaillet@wanadoo.fr, tglx@linutronix.de,
mchehab+samsung@kernel.org, davem@davemloft.net,
paulmck@linux.ibm.com, devicetree@vger.kernel.org,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] iio: ping: add parallax ping sensors
Date: Wed, 13 Nov 2019 12:09:43 +0100 [thread overview]
Message-ID: <196ba1f0-9d9f-9f46-c86e-2c41a7835c59@ysoft.com> (raw)
In-Reply-To: <20191110170650.00527b8b@archlinux>
On 10. 11. 19 18:06, Jonathan Cameron wrote:
> On Thu, 7 Nov 2019 14:00:47 +0100
> Andreas Klinger <ak@it-klinger.de> wrote:
[snip]
>> + *
>> + * +---+ +------------------------+
>> + * GPIO | | | |
>> + * ping: --+ +------------+ +----------------
>> + * ^ ^ ^ ^
>> + * |<->| interrupt interrupt
>> + * udelay(5) (ts_rising) (ts_falling)
>> + * |<---------------------->|
>> + * . pulse time measured
>> + * . --> one round trip of ultra sonic waves
>> + * . .
>> + * ultra +-+ +-+ +-+ .
>> + * sonic | | | | | | .
>> + * burst: ---------+ +-+ +-+ +-----------------------------------------
>> + * .
>> + * ultra +-+ +-+ +-+
>> + * sonic | | | | | |
>> + * echo: ----------------------------------+ +-+ +-+ +----------------
>
> Nice diagram ;)
Using the '+' characters at the edges and '-' characters for levels makes it
not easily readable in some cases. Especially for the short subsequent bursts.
What about this?
* GPIO ___ ________________________
* ping: __/ \____________/ \_________________
* ^ ^ ^ ^
* |<->| interrupt interrupt
* udelay(5) (ts_rising) (ts_falling)
* |<---------------------->|
* . pulse time measured
* . --> one round trip of ultra sonic waves
* . .
* ultra . .
* sonic _ _ _. .
* burst: ________/ \_/ \_/ \_________________________________________
* .
* ultra .
* sonic _ _ _.
* echo: _________________________________/ \_/ \_/ \_________________
*/
Michal
prev parent reply other threads:[~2019-11-13 11:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-07 13:00 Andreas Klinger
2019-11-10 17:06 ` Jonathan Cameron
2019-11-13 11:09 ` Michal Vokáč [this message]
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