2 Commits

Author	SHA1	Message	Date
Kevin O'Connor	e26d1a3567	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>	2019-01-07 20:00:44 -05:00
Kevin O'Connor	f2f54290e8	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>	2019-01-07 20:00:44 -05:00