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klipper-dgus/docs/Config_Changes.md

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docs: Add a new Config_Changes.md document Add a document to track non-backwards compatible changes to the printer config file. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-12-28 00:57:17 +01:00
This document covers recent software changes to the config file that
are not backwards compatible. It is a good idea to review this
document when upgrading the Klipper software.
All dates in this document are approximate.
# Changes
i2ccmds: Pass the i2c address as a 7-bit number (0-127) The sam3 i2c code and the linux code use a 7-bit i2c address, while the avr, lpc176x, and samd21 i2c code uses an 8-bit address with the least significant bit always zero. A similar issue occurred in the host code (sx1509.py and replicape.py use 7-bit addresses while uc1701.py and mcp4451.py use 8-bit addresses). Consistently use 7-bit addresses in all the code. This breaks compatibility between host and mcu software, so make a change to the config_i2c command to force users to synchronize software updates. This also breaks common Smoothieboard configs, so update the mcp4451 code to validate the i2c_address. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-12-28 01:11:46 +01:00
20190107: The i2c_address parameter in the mcp4451 config section
changed. This is a common setting on Smoothieboards. The new value is
half the old value (88 should be changed to 44, and 90 should be
changed to 45).
docs: Add a new Config_Changes.md document Add a document to track non-backwards compatible changes to the printer config file. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-12-28 00:57:17 +01:00
20181220: Klipper v0.7.0 released