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e26d1a3567
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>
15 lines
487 B
Markdown
15 lines
487 B
Markdown
This document covers recent software changes to the config file that
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are not backwards compatible. It is a good idea to review this
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document when upgrading the Klipper software.
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All dates in this document are approximate.
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# Changes
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20190107: The i2c_address parameter in the mcp4451 config section
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changed. This is a common setting on Smoothieboards. The new value is
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half the old value (88 should be changed to 44, and 90 should be
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changed to 45).
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20181220: Klipper v0.7.0 released
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