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| author | Dr. Matthew Swabey <matthew@swabey.org> | 2023-03-21 15:02:58 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-03-21 15:02:58 -0400 |
| commit | 2466b7a2c6544fb585acb47871c75f2816629a2b (patch) | |
| tree | 911cc498f71e26e891373161aaca2e6b2d003293 /docs | |
| parent | e2d7c59812ef192c1d495b6702cb5f56271118a8 (diff) | |
| download | kutter-2466b7a2c6544fb585acb47871c75f2816629a2b.tar.gz kutter-2466b7a2c6544fb585acb47871c75f2816629a2b.tar.xz kutter-2466b7a2c6544fb585acb47871c75f2816629a2b.zip | |
avr: Allow I2C bus speed to be set by Klipper (#6111)
Allow I2C bus speed to be set by appropriate Klipper commands.
Signed-off-by: Matthew Swabey <matthew@swabey.org>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/Config_Reference.md | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/docs/Config_Reference.md b/docs/Config_Reference.md index 494a4733..4e648847 100644 --- a/docs/Config_Reference.md +++ b/docs/Config_Reference.md @@ -4508,20 +4508,20 @@ SPI bus. The following parameters are generally available for devices using an I2C bus. -Note that Klipper's current micro-controller support for i2c is -generally not tolerant to line noise. Unexpected errors on the i2c +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. Most Klipper micro-controller implementations only support an -`i2c_speed` of 100000. The Klipper "linux" micro-controller supports a -400000 speed, but it must be +`i2c_speed` of 100000 (*standard mode*, 100kbit/s). The Klipper "Linux" +micro-controller supports a 400000 speed (*fast mode*, 400kbit/s), but it must be [set in the operating system](RPi_microcontroller.md#optional-enabling-i2c) and the `i2c_speed` parameter is otherwise ignored. The Klipper -"rp2040" micro-controller supports a rate of 400000 via the -`i2c_speed` parameter. All other Klipper micro-controllers use a +"RP2040" micro-controller and ATmega AVR family support a rate of 400000 +via the `i2c_speed` parameter. All other Klipper micro-controllers use a 100000 rate and ignore the `i2c_speed` parameter. ``` @@ -4539,5 +4539,5 @@ and the `i2c_speed` 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. ``` |