Workaround for (bug in?) Micropython import logic. Frequency a keyword not positional...

diff --git a/python/bitbangio/__init__.py b/python/bitbangio/__init__.py
index 3634f44bf250efd82d42ee42e09f78f1ae344c5c..31350bfb6905a754c4211c1b2255d67f16eb0dfd 100644 (file)
--- a/python/bitbangio/__init__.py
+++ b/python/bitbangio/__init__.py
@@ -1,13 +1,15 @@
-from machine import Pin, I2C as _I2C
+from machine import I2C as _I2C
+from machine import Pin

 
 class I2C:
     def __init__(self, scl, sda, frequency=400000):
 
 class I2C:
     def __init__(self, scl, sda, frequency=400000):

+        self._locked = False

         self.init(scl, sda, frequency)
 
     def init(self, scl, sda, frequency):
         self.deinit()
         id = -1 # force bitbanging implementation - in future introspect platform if SDA/SCL matches hardware I2C
         self.init(scl, sda, frequency)
 
     def init(self, scl, sda, frequency):
         self.deinit()
         id = -1 # force bitbanging implementation - in future introspect platform if SDA/SCL matches hardware I2C

-        self._i2c = _I2C(id, Pin(scl.id), Pin(sda.id), frequency)
+        self._i2c = _I2C(id, Pin(scl.id), Pin(sda.id), freq=frequency)

 
     def deinit(self):
         try:
 
     def deinit(self):
         try:


@@ -42,9 +44,10 @@ class I2C:
             if end is None:
                 end = len(buffer)
             buffer = memoryview(buffer)[start:end]
             if end is None:
                 end = len(buffer)
             buffer = memoryview(buffer)[start:end]

-        return self._i2c.readfrom_into(address, buffer, stop=False)
+        stop = True # remove for efficiency later
+        return self._i2c.readfrom_into(address, buffer, stop)

 
 

-    def writeto(self, address, buffer, start=0, end=None, stop=True):
+    def writeto(self, address, buffer, start=0, end=None, stop=True, *a, **k):

         if start is not 0 or end is not None:
             if end is None:
                 end = len(buffer)
         if start is not 0 or end is not None:
             if end is None:
                 end = len(buffer)