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| author | Kevin O'Connor <kevin@koconnor.net> | 2017-10-11 23:18:33 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2017-10-12 11:59:27 -0400 |
| commit | 3c4d14bfa956ee586e9e61cbae34b0450aa5d760 (patch) | |
| tree | cd20de0b868284c62c5be35c16b25dd6c0eed580 /klippy/chipmisc.py | |
| parent | db97f3663168a138461d5b693aa285b67a0193d5 (diff) | |
| download | kutter-3c4d14bfa956ee586e9e61cbae34b0450aa5d760.tar.gz kutter-3c4d14bfa956ee586e9e61cbae34b0450aa5d760.tar.xz kutter-3c4d14bfa956ee586e9e61cbae34b0450aa5d760.zip | |
pca9685: Support default values
Allow the pwm pin to have a non-zero default value.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'klippy/chipmisc.py')
| -rw-r--r-- | klippy/chipmisc.py | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/klippy/chipmisc.py b/klippy/chipmisc.py index 454754ff..8ca90eca 100644 --- a/klippy/chipmisc.py +++ b/klippy/chipmisc.py @@ -123,6 +123,7 @@ class pca9685_pwm: self._max_duration = 2. self._oid = None self._invert = pin_params['invert'] + self._shutdown_value = float(self._invert) self._last_clock = 0 self._pwm_max = 0. self._cmd_queue = self._mcu.alloc_command_queue() @@ -141,6 +142,12 @@ class pca9685_pwm: if self._invert: value = 1. - value self._static_value = max(0., min(1., value)) + def setup_shutdown_value(self, value): + if self._invert: + value = 1. - value + self._shutdown_value = max(0., min(1., value)) + if self._shutdown_value: + self._replicape.note_enable_on_shutdown() def build_config(self): self._pwm_max = self._mcu.get_constant_float("PCA9685_MAX") cycle_ticks = self._mcu.seconds_to_clock(self._cycle_time) @@ -154,10 +161,12 @@ class pca9685_pwm: return self._oid = self._mcu.create_oid() self._mcu.add_config_cmd( - "config_pca9685 oid=%d bus=%d addr=%d channel=%d" - " cycle_ticks=%d max_duration=%d" % ( - self._oid, self._bus, self._address, self._channel, - cycle_ticks, self._mcu.seconds_to_clock(self._max_duration))) + "config_pca9685 oid=%d bus=%d addr=%d channel=%d cycle_ticks=%d" + " value=%d default_value=%d max_duration=%d" % ( + self._oid, self._bus, self._address, self._channel, cycle_ticks, + self._invert * self._pwm_max, + self._shutdown_value * self._pwm_max, + self._mcu.seconds_to_clock(self._max_duration))) self._set_cmd = self._mcu.lookup_command( "schedule_pca9685_out oid=%c clock=%u value=%hu") def set_pwm(self, print_time, value): @@ -249,6 +258,8 @@ class Replicape: self.host_mcu.add_config_cmd("send_spi bus=%d dev=%d msg=%s" % ( REPLICAPE_SHIFT_REGISTER_BUS, REPLICAPE_SHIFT_REGISTER_DEVICE, "".join(["%02x" % (x,) for x in shift_registers]))) + def note_enable_on_shutdown(self): + self.mcu_enable.setup_shutdown_value(1) def note_enable(self, print_time, channel, is_enable): if is_enable: is_off = not self.enabled_channels |