kumi/MicroPython_PN532
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George Waters 2020-09-10 15:42:03 -04:00
parent e9dbe2d4fb
commit 7d7e3ce45f
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4 changed files with 6 additions and 6 deletions
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4
adafruit_pn532/adafruit_pn532.py
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@ -343,12 +343,12 @@ class PN532:
hard power down is performed, if not, a soft power down is performed hard power down is performed, if not, a soft power down is performed
instead. Returns True if the PN532 was powered down successfully or instead. Returns True if the PN532 was powered down successfully or
False if not.""" False if not."""
if self._reset_pin: # Hard Power Down if the reset pin is connected if self._reset_pin: # Hard Power Down if the reset pin is connected
self._reset_pin.value = False self._reset_pin.value = False
self.low_power = True self.low_power = True
else: else:
# Soft Power Down otherwise. Enable wakeup on I2C, SPI, UART # Soft Power Down otherwise. Enable wakeup on I2C, SPI, UART
response = self.call_function(_COMMAND_POWERDOWN, params=[0xb0, 0x00]) response = self.call_function(_COMMAND_POWERDOWN, params=[0xB0, 0x00])
self.low_power = response[0] == 0x00 self.low_power = response[0] == 0x00
time.sleep(0.005) time.sleep(0.005)
return self.low_power return self.low_power

2
adafruit_pn532/i2c.py
View file

@ -71,7 +71,7 @@ class PN532_I2C(PN532):
self._req.value = True self._req.value = True
time.sleep(0.01) time.sleep(0.01)
self.low_power = False self.low_power = False
self.SAM_configuration() # Put the PN532 back in normal mode self.SAM_configuration() # Put the PN532 back in normal mode
def _wait_ready(self, timeout=1): def _wait_ready(self, timeout=1):
"""Poll PN532 if status byte is ready, up to `timeout` seconds""" """Poll PN532 if status byte is ready, up to `timeout` seconds"""

2
adafruit_pn532/spi.py
View file

@ -79,7 +79,7 @@ class PN532_SPI(PN532):
spi.write(bytearray([0x00])) # pylint: disable=no-member spi.write(bytearray([0x00])) # pylint: disable=no-member
time.sleep(0.01) time.sleep(0.01)
self.low_power = False self.low_power = False
self.SAM_configuration() # Put the PN532 back in normal mode self.SAM_configuration() # Put the PN532 back in normal mode
def _wait_ready(self, timeout=1): def _wait_ready(self, timeout=1):
"""Poll PN532 if status byte is ready, up to `timeout` seconds""" """Poll PN532 if status byte is ready, up to `timeout` seconds"""

4
adafruit_pn532/uart.py
View file

@ -61,7 +61,7 @@ class PN532_UART(PN532):
self.low_power = False self.low_power = False
self._uart.write( self._uart.write(
b"\x55\x55\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" b"\x55\x55\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
) # wake up! ) # wake up!
self.SAM_configuration() self.SAM_configuration()
def _wait_ready(self, timeout=1): def _wait_ready(self, timeout=1):
@ -69,7 +69,7 @@ class PN532_UART(PN532):
timestamp = time.monotonic() timestamp = time.monotonic()
while (time.monotonic() - timestamp) < timeout: while (time.monotonic() - timestamp) < timeout:
if self._uart.in_waiting > 0: if self._uart.in_waiting > 0:
return True # No Longer Busy return True # No Longer Busy
time.sleep(0.01) # lets ask again soon! time.sleep(0.01) # lets ask again soon!
# Timed out! # Timed out!
return False return False