From 5db84779c63b4eb6f6e0816f6c62bee51117fa85 Mon Sep 17 00:00:00 2001 From: Kevin O'Connor Date: Sat, 20 Jan 2018 00:14:52 -0500 Subject: ad5206: Move the ad5206 code from chipmisc.py to extras directory Signed-off-by: Kevin O'Connor --- klippy/extras/ad5206.py | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 klippy/extras/ad5206.py (limited to 'klippy/extras/ad5206.py') diff --git a/klippy/extras/ad5206.py b/klippy/extras/ad5206.py new file mode 100644 index 00000000..f71655df --- /dev/null +++ b/klippy/extras/ad5206.py @@ -0,0 +1,30 @@ +# AD5206 digipot code +# +# Copyright (C) 2017,2018 Kevin O'Connor +# +# This file may be distributed under the terms of the GNU GPLv3 license. +import pins + +class ad5206: + def __init__(self, config): + printer = config.get_printer() + enable_pin_params = pins.get_printer_pins(printer).lookup_pin( + 'digital_out', config.get('enable_pin')) + self.mcu = enable_pin_params['chip'] + self.pin = enable_pin_params['pin'] + self.mcu.add_config_object(self) + scale = config.getfloat('scale', 1., above=0.) + self.channels = [None] * 6 + for i in range(len(self.channels)): + val = config.getfloat('channel_%d' % (i+1,), None, + minval=0., maxval=scale) + if val is not None: + self.channels[i] = int(val * 256. / scale + .5) + def build_config(self): + for i, val in enumerate(self.channels): + if val is not None: + self.mcu.add_config_cmd( + "send_spi_message pin=%s msg=%02x%02x" % (self.pin, i, val)) + +def load_config(config): + return ad5206(config) -- cgit v1.2.3-70-g09d2