klipper update

klippy/extras/ad5206.py

@@ -0,0 +1,22 @@
+# AD5206 digipot code
+#
+# Copyright (C) 2017,2018  Kevin O'Connor <kevin@koconnor.net>
+#
+# This file may be distributed under the terms of the GNU GPLv3 license.
+from . import bus
+
+class ad5206:
+    def __init__(self, config):
+        self.spi = bus.MCU_SPI_from_config(
+            config, 0, pin_option="enable_pin", default_speed=25000000)
+        scale = config.getfloat('scale', 1., above=0.)
+        for i in range(6):
+            val = config.getfloat('channel_%d' % (i+1,), None,
+                                  minval=0., maxval=scale)
+            if val is not None:
+                self.set_register(i, int(val * 256. / scale + .5))
+    def set_register(self, reg, value):
+        self.spi.spi_send([reg, value])
+
+def load_config_prefix(config):
+    return ad5206(config)