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Add Stop Mode to register write. #13

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Merged
merged 1 commit into from
Nov 4, 2018
Merged

Add Stop Mode to register write. #13

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8 changes: 8 additions & 0 deletions adafruit_mpr121.py
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Original file line number Diff line number Diff line change
Expand Up @@ -120,8 +120,16 @@ def touched_pins(self):

def _write_register_byte(self, register, value):
# Write a byte value to the specifier register address.
# MPR121 must be put in Stop Mode to write to most registers
stop_required = True
if register == MPR121_ECR or 0x73 <= register <= 0x7A:
stop_required = False
with self._i2c:
if stop_required:
self._i2c.write(bytes([MPR121_ECR, 0x00]))
self._i2c.write(bytes([register, value]))
if stop_required:
self._i2c.write(bytes([MPR121_ECR, 0x8F]))

def _read_register_bytes(self, register, result, length=None):
# Read the specified register address and fill the specified result byte
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