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Diffstat (limited to 'klippy/extras/buttons.py')
| -rw-r--r-- | klippy/extras/buttons.py | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/klippy/extras/buttons.py b/klippy/extras/buttons.py index 1a6147d1..47274257 100644 --- a/klippy/extras/buttons.py +++ b/klippy/extras/buttons.py @@ -57,10 +57,9 @@ class MCU_buttons: def handle_buttons_state(self, params): # Expand the message ack_count from 8-bit ack_count = self.ack_count - ack_diff = (ack_count - params['ack_count']) & 0xff - if ack_diff & 0x80: - ack_diff -= 0x100 - msg_ack_count = ack_count - ack_diff + ack_diff = (params['ack_count'] - ack_count) & 0xff + ack_diff -= (ack_diff & 0x80) << 1 + msg_ack_count = ack_count + ack_diff # Determine new buttons buttons = bytearray(params['state']) new_count = msg_ack_count + len(buttons) - self.ack_count |