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| author | Kevin O'Connor <kevin@koconnor.net> | 2018-12-27 19:11:46 -0500 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2019-01-07 20:00:44 -0500 |
| commit | e26d1a356708b3702c91a86ff37f3c5c615941c9 (patch) | |
| tree | 89cbc00e3af6fe731c863da4a30b487b56a8badd /config | |
| parent | f2f54290e84903679bdb9548924f933a6efe311d (diff) | |
| download | kutter-e26d1a356708b3702c91a86ff37f3c5c615941c9.tar.gz kutter-e26d1a356708b3702c91a86ff37f3c5c615941c9.tar.xz kutter-e26d1a356708b3702c91a86ff37f3c5c615941c9.zip | |
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>
Diffstat (limited to 'config')
| -rw-r--r-- | config/generic-smoothieboard.cfg | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/config/generic-smoothieboard.cfg b/config/generic-smoothieboard.cfg index 6d635352..742d5442 100644 --- a/config/generic-smoothieboard.cfg +++ b/config/generic-smoothieboard.cfg @@ -90,7 +90,7 @@ max_z_accel: 100 pins: P1.18, P1.19, P1.20, P1.21, P4.28 [mcp4451 stepper_digipot1] -i2c_address: 88 +i2c_address: 44 # Scale the config so that wiper values can be specified in amps. scale: 2.25 # wiper 0 is X (aka alpha), 1 is Y, 2 is Z, 3 is E0 @@ -100,7 +100,7 @@ wiper_2: 1.0 wiper_3: 1.0 [mcp4451 stepper_digipot2] -i2c_address: 90 +i2c_address: 45 scale: 2.25 # wiper 0 is E1 wiper_0: 1.0 |