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KevinOConnor 2023-03-21 19:04:22 +00:00
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Config_Reference.html
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@ -7658,19 +7658,19 @@ SPI bus.</p>
<h3 id="common-i2c-settings">Common I2C settings<a class="headerlink" href="#common-i2c-settings" title="Permanent link">&para;</a></h3>
<p>The following parameters are generally available for devices using an
I2C bus.</p>
<p>Note that Klipper's current micro-controller support for i2c is
generally not tolerant to line noise. Unexpected errors on the i2c
<p>Note that Klipper's current micro-controller support for I2C is
generally not tolerant to line noise. Unexpected errors on the I2C
wires may result in Klipper raising a run-time error. Klipper's
support for error recovery varies between each micro-controller type.
It is generally recommended to only use i2c devices that are on the
It is generally recommended to only use I2C devices that are on the
same printed circuit board as the micro-controller.</p>
<p>Most Klipper micro-controller implementations only support an
<code>i2c_speed</code> of 100000. The Klipper "linux" micro-controller supports a
400000 speed, but it must be
<code>i2c_speed</code> of 100000 (<em>standard mode</em>, 100kbit/s). The Klipper "Linux"
micro-controller supports a 400000 speed (<em>fast mode</em>, 400kbit/s), but it must be
<a href="RPi_microcontroller.html#optional-enabling-i2c">set in the operating system</a>
and the <code>i2c_speed</code> parameter is otherwise ignored. The Klipper
"rp2040" micro-controller supports a rate of 400000 via the
<code>i2c_speed</code> parameter. All other Klipper micro-controllers use a
"RP2040" micro-controller and ATmega AVR family support a rate of 400000
via the <code>i2c_speed</code> parameter. All other Klipper micro-controllers use a
100000 rate and ignore the <code>i2c_speed</code> parameter.</p>
<div class="highlight"><pre><span></span><code>#i2c_address:
# The i2c address of the device. This must specified as a decimal
@ -7686,7 +7686,7 @@ and the <code>i2c_speed</code> parameter is otherwise ignored. The Klipper
# The I2C speed (in Hz) to use when communicating with the device.
# The Klipper implementation on most micro-controllers is hard-coded
# to 100000 and changing this value has no effect. The default is
# 100000.
# 100000. Linux, RP2040 and ATmega support 400000.
</code></pre></div>