Commit Graph

5 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 a726c58671 mcp4451: Minor update - remove unnecessary mcu import
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-11-24 00:36:49 -05:00
Kevin O'Connor 147d805231 mcp4451: Use bus.py helper code for i2c
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-11-24 00:33:22 -05:00
Kevin O'Connor f3c4deb1ab lpc176x: Convert i2c code to use standard i2ccmds.c
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-11-14 10:23:56 -05:00
Kevin O'Connor d725160706 mcp4451: Add initial support for programming the mcp4451 on lpc176x
Add support for programming smoothieboard current.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2018-06-29 21:20:12 -04:00