def get_platform_gpio(**keywords):
"""Attempt to return a GPIO instance for the platform which the code is being
executed on. Currently supports only the Raspberry Pi using the RPi.GPIO
library and Beaglebone Black using the Adafruit_BBIO library. Will throw an
exception if a GPIO instance can't be created for the current platform. The
returned GPIO object is an instance of BaseGPIO.
"""
print "GPIO.py get_platform_gpio()"
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPiGPIOAdapter(RPi.GPIO, **keywords)
#elif plat == Platform.BEAGLEBONE_BLACK:
#import Adafruit_BBIO.GPIO
#return AdafruitBBIOAdapter(Adafruit_BBIO.GPIO, **keywords)
#elif plat == Platform.MINNOWBOARD:
#import mraa
#return AdafruitMinnowAdapter(mraa, **keywords)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def __init__(self, dc, spi, rst=None, gpio=None, width=HX8357_TFTWIDTH,
height=HX8357_TFTHEIGHT):
"""Create an instance of the display using SPI communication. Must
provide the GPIO pin number for the D#C pin and the SPI driver. Can
optionally provide the GPIO pin number for the reset pin as the rst
parameter.
"""
self._dc = dc
self._rst = rst
self._spi = spi
self._gpio = gpio
self.width = width
self.height = height
if self._gpio is None:
self._gpio = GPIO.get_platform_gpio()
# Set DC as output.
self._gpio.setup(dc, GPIO.OUT)
# Setup reset as output (if provided).
if rst is not None:
self._gpio.setup(rst, GPIO.OUT)
# Set SPI to mode 0, MSB first.
spi.set_mode(0)
spi.set_bit_order(SPI.MSBFIRST)
#need to nerf the clock for Minnow
if(Platform.platform_detect() == 3):
spi.set_clock_hz(16000000)
print 'Rate: MAX'
else:
spi.set_clock_hz(64000000)
print 'Rate: 64hz'
# Create an image buffer.
self.buffer = Image.new('RGB', (width, height))
def get_platform_gpio(**keywords):
"""Attempt to return a GPIO instance for the platform which the code is being
executed on. Currently supports only the Orange Pi and the Raspberry Pi using
the RPi.GPIO library and Beaglebone Black using the Adafruit_BBIO library.
Will throw an exception if a GPIO instance can't be created for the current platform.
The returned GPIO object is an instance of BaseGPIO.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPiGPIOAdapter(RPi.GPIO, **keywords)
elif plat == Platform.ORANGE_PI:
import OPi.GPIO
return OPiGPIOAdapter(OPi.GPIO, **keywords)
elif plat == Platform.BEAGLEBONE_BLACK:
import Adafruit_BBIO.GPIO
return AdafruitBBIOAdapter(Adafruit_BBIO.GPIO, **keywords)
elif plat == Platform.MINNOWBOARD:
import mraa
return AdafruitMinnowAdapter(mraa, **keywords)
elif plat == Platform.JETSON_NANO:
import Jetson.GPIO
return RPiGPIOAdapter(Jetson.GPIO, **keywords)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def get_platform_pwm(**keywords):
"""Attempt to return a PWM instance for the platform which the code is being
executed on. Currently supports only the Raspberry Pi using the RPi.GPIO
library and Beaglebone Black using the Adafruit_BBIO library. Will throw an
exception if a PWM instance can't be created for the current platform. The
returned PWM object has the same interface as the RPi_PWM_Adapter and
BBIO_PWM_Adapter classes.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPi_PWM_Adapter(RPi.GPIO, **keywords)
elif plat == Platform.BEAGLEBONE_BLACK:
import Adafruit_BBIO.PWM
return BBIO_PWM_Adapter(Adafruit_BBIO.PWM, **keywords)
elif plat == Platform.CHIP:
if "pwmtype" in keywords.keys():
if keywords["pwmtype"] == "pwm":
import CHIP_IO.PWM
return CHIP_PWM_Adapter(CHIP_IO.PWM)
elif keywords["pwmtype"] == "softpwm":
import CHIP_IO.SOFTPWM
return CHIP_PWM_Adapter(CHIP_IO.SOFTPWM)
else:
raise ValueError(
'For CHIP, you need to specify pwmtype in argument with value pwm or softpwm: get_platform_pwm(pwmtype="pwm") or get_platform_type(pwmtype="softpwm")'
)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def get_default_bus():
"""Return the default bus number based on the device platform. For a
Raspberry Pi either bus 0 or 1 (based on the Pi revision) will be returned.
For a Beaglebone Black the first user accessible bus, 1, will be returned.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
if Platform.pi_revision() == 1:
# Revision 1 Pi uses I2C bus 0.
return 0
else:
# Revision 2 Pi uses I2C bus 1.
return 1
elif plat == Platform.BEAGLEBONE_BLACK:
# Beaglebone Black has multiple I2C buses, default to 1 (P9_19 and P9_20).
return 1
elif plat == Platform.CHIP:
# CHIP has 2 user accessible I2C busses, default to 2 (U1425 and U14_26)
# We want the CHIP to default to 2 as the PocketCHIP header breaks out
# this interface
# But, the CHIP Pro defaults to bus 1
import CHIP_IO.Utilities as UT
if UT.is_chip_pro():
return 1
else:
return 2
else:
raise RuntimeError('Could not determine default I2C bus for platform.')
def get_platform_pwm(**keywords):
"""Attempt to return a PWM instance for the platform which the code is being
executed on. Currently supports only the Raspberry Pi using the RPi.GPIO
library and Beaglebone Black using the Adafruit_BBIO library. Will throw an
exception if a PWM instance can't be created for the current platform. The
returned PWM object has the same interface as the RPi_PWM_Adapter and
BBIO_PWM_Adapter classes.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPi_PWM_Adapter(RPi.GPIO, **keywords)
elif plat == Platform.BEAGLEBONE_BLACK:
import Adafruit_BBIO.PWM
return BBIO_PWM_Adapter(Adafruit_BBIO.PWM, **keywords)
elif plat == Platform.CHIP:
if "pwmtype" in keywords.keys():
if keywords["pwmtype"] == "pwm":
import CHIP_IO.PWM
return CHIP_PWM_Adapter(CHIP_IO.PWM)
elif keywords["pwmtype"] == "softpwm":
import CHIP_IO.SOFTPWM
return CHIP_PWM_Adapter(CHIP_IO.SOFTPWM)
else:
raise ValueError('For CHIP, you need to specify pwmtype in argument with value pwm or softpwm: get_platform_pwm(pwmtype="pwm") or get_platform_type(pwmtype="softpwm")')
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def main():
print "RUNNING ACCELEROMETER TEST"
if (detect_device()):
return
set_full_res(1)
set_range(RANGE_8G)
set_rate(BW_50)
set_accelerometer_sensitivity()
device_start()
calibrate()
disable_interrupts()
set_interrupt_level(INT_ACT_LOW)
gpio = GPIO.get_platform_gpio()
#checking for the CHIP platform#
if (5 == Platform.platform_detect()):
print "CHIP platform running\n"
else:
print "Not running on CHIP device\n"
exit()
fifo_int_pin = "PWM1"
#set AP-EINT1n as the interrupt pin#
gpio.setup(fifo_int_pin, GPIO.IN)
print "#", gpio.input(fifo_int_pin)
#add a callback fn() for falling event on fifo_interrupt#
gpio.add_event_detect(fifo_int_pin, GPIO.FALLING)
gpio.add_event_callback(fifo_int_pin, fifo_overflow_handle)
set_interrupt(INT_ENABLE_WATERMARK, 1)
if (is_interrupt_enable(INT_ENABLE_WATERMARK)):
print "int enabled"
enable_fifo_mode(FIFO_STREAM, FIFO_SAMPLES)
while 1:
pass
def __init__(self, dc, spi, rst=None, gpio=None, width=ILI9341_TFTWIDTH,
height=ILI9341_TFTHEIGHT):
"""Create an instance of the display using SPI communication. Must
provide the GPIO pin number for the D/C pin and the SPI driver. Can
optionally provide the GPIO pin number for the reset pin as the rst
parameter.
"""
self._dc = dc
self._rst = rst
self._spi = spi
self._gpio = gpio
self.width = width
self.height = height
if self._gpio is None:
self._gpio = GPIO.get_platform_gpio()
# Set DC as output.
self._gpio.setup(dc, GPIO.OUT)
# Setup reset as output (if provided).
if rst is not None:
self._gpio.setup(rst, GPIO.OUT)
# Set SPI to mode 0, MSB first.
spi.set_mode(0)
spi.set_bit_order(SPI.MSBFIRST)
# Clock nerfed for the Minnowboard
if(Platform.platform_detect() == 3):
spi.set_clock_hz(1000000)
else:
spi.set_clock_hz(64000000)
# Create an image buffer.
self.buffer = Image.new('RGB', (width, height))
def get_platform_gpio(**keywords):
"""Attempt to return a GPIO instance for the platform which the code is being
executed on. Will throw an exception if a GPIO instance can't be created for the current platform.
The returned GPIO object is an instance of BaseGPIO.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPiGPIOAdapter(RPi.GPIO, **keywords)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def get_platform_gpio(**keywords):
"""Attempt to return a GPIO instance for the platform which the code is being
executed on. Currently supports only the Raspberry Pi using the RPi.GPIO
library and Beaglebone Black using the Adafruit_BBIO library. Will throw an
exception if a GPIO instance can't be created for the current platform. The
returned GPIO object is an instance of BaseGPIO.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPiGPIOAdapter(RPi.GPIO, **keywords)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def get_default_bus():
"""Return the default bus number based on the device platform. For a
Raspberry Pi either bus 0 or 1 (based on the Pi revision) will be returned.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
if Platform.pi_revision() == 1:
# Revision 1 Pi uses I2C bus 0.
return 0
else:
# Revision 2 Pi uses I2C bus 1.
return 1
else:
raise RuntimeError('Could not determine default I2C bus for platform.')
def require_repeated_start():
"""Enable repeated start conditions for I2C register reads. This is the
normal behavior for I2C, however on some platforms like the Raspberry Pi
there are bugs which disable repeated starts unless explicitly enabled with
this function. See this thread for more details:
http://www.raspberrypi.org/forums/viewtopic.php?f=44&t=15840
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI and os.path.exists('/sys/module/i2c_bcm2708/parameters/combined'):
# On the Raspberry Pi there is a bug where register reads don't send a
# repeated start condition like the kernel smbus I2C driver functions
# define. As a workaround this bit in the BCM2708 driver sysfs tree can
# be changed to enable I2C repeated starts.
subprocess.check_call('chmod 666 /sys/module/i2c_bcm2708/parameters/combined', shell=True)
subprocess.check_call('echo -n 1 > /sys/module/i2c_bcm2708/parameters/combined', shell=True)
def require_repeated_start():
"""Enable repeated start conditions for I2C register reads. This is the
normal behavior for I2C, however on some platforms like the Raspberry Pi
there are bugs which disable repeated starts unless explicitly enabled with
this function. See this thread for more details:
http://www.raspberrypi.org/forums/viewtopic.php?f=44&t=15840
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
# On the Raspberry Pi there is a bug where register reads don't send a
# repeated start condition like the kernel smbus I2C driver functions
# define. As a workaround this bit in the BCM2708 driver sysfs tree can
# be changed to enable I2C repeated starts.
subprocess.check_call('chmod 666 /sys/module/i2c_bcm2708/parameters/combined', shell=True)
subprocess.check_call('echo -n 1 > /sys/module/i2c_bcm2708/parameters/combined', shell=True)
def get_platform_pwm(**keywords):
"""Attempt to return a PWM instance for the platform which the code is being
executed on. Currently supports only the Raspberry Pi using the RPi.GPIO
library and Beaglebone Black using the Adafruit_BBIO library. Will throw an
exception if a PWM instance can't be created for the current platform. The
returned PWM object has the same interface as the RPi_PWM_Adapter and
BBIO_PWM_Adapter classes.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPi_PWM_Adapter(RPi.GPIO, **keywords)
elif plat == Platform.BEAGLEBONE_BLACK:
import Adafruit_BBIO.PWM
return BBIO_PWM_Adapter(Adafruit_BBIO.PWM, **keywords)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def get_platform_pwm(**keywords):
"""Attempt to return a PWM instance for the platform which the code is being
executed on. Currently supports only the Raspberry Pi using the RPi.GPIO
library and Beaglebone Black using the Adafruit_BBIO library. Will throw an
exception if a PWM instance can't be created for the current platform. The
returned PWM object has the same interface as the RPi_PWM_Adapter and
BBIO_PWM_Adapter classes.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
import RPi.GPIO
return RPi_PWM_Adapter(RPi.GPIO, **keywords)
elif plat == Platform.BEAGLEBONE_BLACK:
import Adafruit_BBIO.PWM
return BBIO_PWM_Adapter(Adafruit_BBIO.PWM, **keywords)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def get_default_bus():
"""Return the default bus number based on the device platform. For a
Raspberry Pi either bus 0 or 1 (based on the Pi revision) will be returned.
For a Beaglebone Black the first user accessible bus, 1, will be returned.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
if Platform.pi_revision() == 1:
# Revision 1 Pi uses I2C bus 0.
return 0
else:
# Revision 2 Pi uses I2C bus 1.
return 1
elif plat == Platform.BEAGLEBONE_BLACK:
# Beaglebone Black has multiple I2C buses, default to 1 (P9_19 and P9_20).
return 1
else:
raise RuntimeError('Could not determine default I2C bus for platform.')
def get_default_bus():
"""Return the default bus number based on the device platform. For a
Raspberry Pi either bus 0 or 1 (based on the Pi revision) will be returned.
For a Beaglebone Black the first user accessible bus, 1, will be returned.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
if Platform.pi_revision() == 1:
# Revision 1 Pi uses I2C bus 0.
return 0
else:
# Revision 2 Pi uses I2C bus 1.
return 1
elif plat == Platform.BEAGLEBONE_BLACK:
# Beaglebone Black has multiple I2C buses, default to 1 (P9_19 and P9_20).
return 1
else:
raise RuntimeError('Could not determine default I2C bus for platform.')
def get_platform_gpio(**keywords):
"""Attempt to return a GPIO instance for the platform which the code is being
executed on. Currently supports only the Raspberry Pi using the RPi.GPIO
library and Beaglebone Black using the Adafruit_BBIO library. Will throw an
exception if a GPIO instance can't be created for the current platform. The
returned GPIO object is an instance of BaseGPIO.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
try:
from sysfs.gpio import GPIOController
return LinuxSysFSAdapter(GPIOController(), **keywords)
except:
import RPi.GPIO
return RPiGPIOAdapter(RPi.GPIO, **keywords)
elif plat == Platform.BEAGLEBONE_BLACK:
import Adafruit_BBIO.GPIO
return AdafruitBBIOAdapter(Adafruit_BBIO.GPIO, **keywords)
elif plat == Platform.UNKNOWN:
raise RuntimeError('Could not determine platform.')
def get_default_bus():
"""Return the default bus number based on the device platform. For a
Raspberry Pi either bus 0 or 1 (based on the Pi revision) will be returned.
For a Beaglebone Black the first user accessible bus, 1, will be returned.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
if Platform.pi_revision() == 1:
# Revision 1 Pi uses I2C bus 0.
return 0
else:
# Revision 2 Pi uses I2C bus 1.
return 1
elif plat == Platform.BEAGLEBONE_BLACK:
# Beaglebone Black has multiple I2C buses, default to 1 (P9_19 and P9_20).
return 1
elif plat == Platform.CHIP:
# CHIP has 2 user accessible I2C busses, default to 2 (U1425 and U14_26)
# The 4.4 Kernel CHIPs remove i2c-1 for the ability to set with a dtb overlay
# and therefore isn't accessible without one
return 2
else:
raise RuntimeError("Could not determine default I2C bus for platform.")
def get_default_bus():
"""Return the default bus number based on the device platform. For a
Raspberry Pi either bus 0 or 1 (based on the Pi revision) will be returned.
For a Beaglebone Black the first user accessible bus, 1, will be returned.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
if Platform.pi_revision() == 1:
# Revision 1 Pi uses I2C bus 0.
return 0
else:
# Revision 2 Pi uses I2C bus 1.
return 1
elif plat == Platform.BEAGLEBONE_BLACK:
# Beaglebone Black has multiple I2C buses, default to 1 (P9_19 and P9_20).
return 1
elif plat == Platform.CHIP:
# CHIP has 2 user accessible I2C busses, default to 2 (U1425 and U14_26)
# The 4.4 Kernel CHIPs remove i2c-1 for the ability to set with a dtb overlay
# and therefore isn't accessible without one
return 2
else:
raise RuntimeError('Could not determine default I2C bus for platform.')
def get_default_bus():
"""Return the default bus number based on the device platform. For a
Raspberry Pi either bus 0 or 1 (based on the Pi revision) will be returned.
For a Beaglebone Black the first user accessible bus, 1, will be returned.
"""
plat = Platform.platform_detect()
if plat == Platform.RASPBERRY_PI:
if Platform.pi_revision() == 1:
# Revision 1 Pi uses I2C bus 0.
return 0
else:
# Revision 2 Pi uses I2C bus 1.
return 1
elif plat == Platform.BEAGLEBONE_BLACK:
# Beaglebone Black has multiple I2C buses, default to 1 (P9_19 and P9_20).
return 1
####################################################################################################
#our modifaction to allow this code to work with the jetson tx2 board bus 0
elif plat == Platform.JETSON_TX2:
# change the return value to the i2c bus you want to use.
return 1
#return 0 orginally at BUS 0 adjusting code for all sensors to be BUS 1
else:
raise RuntimeError('Could not determine default I2C bus for platform.')
def test_unknown(self):
result = Platform.platform_detect()
self.assertEquals(result, Platform.UNKNOWN)
def test_beaglebone_black(self):
result = Platform.platform_detect()
self.assertEquals(result, Platform.BEAGLEBONE_BLACK)
import sys
# We intentionally are patching into this namespace as module names so skip the name check.
# pylint: disable=invalid-name
platform = sys.platform
board_id = None
if platform is not None:
if platform == "esp8266": # TODO more conservative board-guessing
board_id = "feather_huzzah"
elif platform == "samd21":
board_id = "feather_m0_express"
elif platform == "pyboard":
platform = "stm32"
board_id = "pyboard"
elif platform == "linux":
from Adafruit_GPIO import Platform
if Platform.platform_detect() == Platform.RASPBERRY_PI:
if Platform.pi_version() == 1:
board_id = "raspi_1"
elif Platform.pi_version() == 2:
board_id = "raspi_2"
elif Platform.pi_version() == 3:
board_id = "raspi_3"
implementation = sys.implementation.name
if implementation == "micropython":
from utime import sleep
elif implementation == "circuitpython" or implementation == "cpython":
from time import sleep
import Adafruit_GPIO.Platform as Platform
platform = Platform.platform_detect()
print("Diagnostics:\n")
print("Platform is RPi:", platform == 1)
def test_unknown(self):
result = Platform.platform_detect()
self.assertEquals(result, Platform.UNKNOWN)
def test_beaglebone_black(self):
result = Platform.platform_detect()
self.assertEquals(result, Platform.BEAGLEBONE_BLACK)
platform = "stm32"
board_id = "pyboard"
elif platform == "linux":
import re
# we're going to redo the Platform detection, this is a terrible hack
# for now.
try:
# lets see if we're an armbian board
for line in open("/etc/armbian-release", 'r'):
#print(line)
m = re.search('BOARD=(.*)', line)
if m:
board_id = m.group(1)
except:
from Adafruit_GPIO import Platform
if Platform.platform_detect() == Platform.RASPBERRY_PI:
if Platform.pi_version() == 1:
board_id = "raspi_1"
elif Platform.pi_version() == 2:
board_id = "raspi_2"
elif Platform.pi_version() == 3:
board_id = "raspi_3"
elif Platform.platform_detect() == Platform.BEAGLEBONE_BLACK:
board_id = "beaglebone_black"
implementation = sys.implementation.name
if implementation == "micropython":
from utime import sleep
elif implementation == "circuitpython" or implementation == "cpython":
from time import sleep
def test_raspberry_pi(self):
result = Platform.platform_detect()
self.assertEquals(result, Platform.RASPBERRY_PI)
def test_raspberry_pi(self): result = Platform.platform_detect() self.assertEquals(result, Platform.RASPBERRY_PI)
