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query_adc: Add a new module to help query and debug analog pins

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-11-07 19:23:20 -05:00
parent 124ba12485
commit 0bfb655f66
5 changed files with 50 additions and 0 deletions
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4
klippy/mcu.py
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@ -392,6 +392,7 @@ class MCU_adc:
self._sample_time = self._report_time = 0.
self._sample_count = self._range_check_count = 0
self._report_clock = 0
self._last_state = (0., 0.)
self._oid = self._callback = None
self._mcu.register_config_callback(self._build_config)
self._inv_max_adc = 0.
@ -407,6 +408,8 @@ class MCU_adc:
def setup_adc_callback(self, report_time, callback):
self._report_time = report_time
self._callback = callback
def get_last_value(self):
return self._last_state
def _build_config(self):
if not self._sample_count:
return
@ -435,6 +438,7 @@ class MCU_adc:
next_clock = self._mcu.clock32_to_clock64(params['next_clock'])
last_read_clock = next_clock - self._report_clock
last_read_time = self._mcu.clock_to_print_time(last_read_clock)
self._last_state = (last_value, last_read_time)
if self._callback is not None:
self._callback(last_read_time, last_value)