X-Git-Url: https://git.ayoreis.com/Adafruit_Blinka-hackapet.git/blobdiff_plain/61d0fc3e10417302119c4ed479b31030dc17a064..84862c851a21caebff5194cbb7d94c9ff14ad132:/src/adafruit_blinka/microcontroller/nxp_lpc4330/spi.py

diff --git a/src/adafruit_blinka/microcontroller/nxp_lpc4330/spi.py b/src/adafruit_blinka/microcontroller/nxp_lpc4330/spi.py
index 55a439c..29f4734 100644
--- a/src/adafruit_blinka/microcontroller/nxp_lpc4330/spi.py
+++ b/src/adafruit_blinka/microcontroller/nxp_lpc4330/spi.py
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
 """SPI Class for NXP LPC4330"""
 from greatfet import GreatFET
 
@@ -11,6 +14,8 @@ class SPI:
         self._gf = GreatFET()
         self._frequency = None
         self.buffer_size = 255
+        self._mode = 0
+        self._spi = None
         self._presets = {
             204000: (100, 9),
             408000: (100, 4),
@@ -28,7 +33,7 @@ class SPI:
             102000000: (2, 0),
         }
 
-    # pylint: disable=too-many-arguments
+    # pylint: disable=too-many-arguments,unused-argument
     def init(
         self,
         baudrate=100000,
@@ -67,8 +72,7 @@ class SPI:
         to the found value
         """
         closest_preset = None
-        for frequency in self._presets:
-            preset = self._presets[frequency]
+        for frequency, preset in self._presets.items():
             if self._frequency is None or abs(frequency - target_frequency) < abs(
                 self._frequency - target_frequency
             ):
@@ -91,7 +95,7 @@ class SPI:
     def readinto(self, buf, start=0, end=None, write_value=0):
         """Read data from SPI and into the buffer"""
         end = end if end else len(buf)
-        result = self._transmit([], end - start)
+        result = self._transmit([write_value] * (end - start), end - start)
         for i, b in enumerate(result):
             buf[start + i] = b
 
@@ -108,8 +112,6 @@ class SPI:
         in_end = in_end if in_end else len(buffer_in)
 
         result = self._transmit(buffer_out[out_start:out_end], in_end - in_start)
-        for i, b in enumerate(result):
-            buf[start + i] = b
         for i, b in enumerate(result):
             buffer_in[in_start + i] = b