docs/mimxrt: Change the examples which denote a Pin with a number.
This option was removed in PR #12211. Signed-off-by: robert-hh <robert@hammelrath.com>
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robert-hh
Damien George
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commit
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@ -92,9 +92,7 @@ Use the :ref:`machine.Pin <machine.Pin>` class::
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Available Pins follow the ranges and labelling of the respective board, like:
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- 0-33 for Teensy 4.0,
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- 0-21 for the MIMXRT10xx-EVK board, or 'D0-Dxx', or 'A0-Ann',
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- 0-14 for the Olimex RT1010Py board, or 'D0'-'Dxx' and 'A0'-'Ann'
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- 'D0-Dxx', or 'A0-Ann' for Teensy 4.0, MIMXRT10xx-EVK ns Olimex board,
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- 'J3_xx', 'J4_xx', 'J5_xx' for the Seeed ARCH MIX board,
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or the pin names of the Pin.board or Pin.cpu classes.
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@ -106,9 +104,9 @@ Notes:
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* At the MIMXRT1010_EVK, pins D4, D5 and D9 of the Arduino connector are by
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default not connected to the MCU. For details refer to the schematics.
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* At the MIMXRT1170_EVK board, the inner rows of the Arduino connectors are assigned as follows:
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- D16 - D23: J9, odd pin numbers; D17 is by default not connected.
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- D24 - D27: J26, odd pin numbers; J63-J66 have to be closed to enable these pins.
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- D29 - D36: J25, odd pin numbers; D29 and D30 are by default not connected.
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- 'D16' - 'D23': J9, odd pin numbers; 'D17' is by default not connected.
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- 'D24' - 'D27': J26, odd pin numbers; J63-J66 have to be closed to enable these pins.
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- 'D29' - 'D36': J25, odd pin numbers; 'D29' and 'D30' are by default not connected.
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There's a higher-level abstraction :ref:`machine.Signal <machine.Signal>`
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which can be used to invert a pin. Useful for illuminating active-low LEDs
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@ -146,22 +144,22 @@ handling signal groups. ::
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from machine import Pin, PWM
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# create PWM object from a pin and set the frequency and duty cycle
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pwm2 = PWM(Pin(2), freq=2000, duty_u16=32768)
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pwm2 = PWM(Pin('D2'), freq=2000, duty_u16=32768)
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pwm2.freq() # get the current frequency
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pwm2.freq(1000) # set/change the frequency
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pwm2.duty_u16() # get the current duty cycle, range 0-65535
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pwm2.duty_u16(200) # set the duty cycle, range 0-65535
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pwm2.deinit() # turn off PWM on the pin
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# create a complementary signal pair on Pin 2 and 3
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pwm2 = PWM((2, 3), freq=2000, duty_ns=20000)
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pwm2 = PWM(('D2', 'D3'), freq=2000, duty_ns=20000)
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# Create a group of four synchronized signals.
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# Start with Pin(4) at submodule 0, which creates the sync pulse.
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pwm4 = PWM(Pin(4), freq=1000, align=PWM.HEAD)
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# Pins 5, 6, and 9 are pins at the same module
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pwm5 = PWM(Pin(5), freq=1000, duty_u16=10000, align=PWM.HEAD, sync=True)
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pwm6 = PWM(Pin(6), freq=1000, duty_u16=20000, align=PWM.HEAD, sync=True)
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pwm9 = PWM(Pin(9), freq=1000, duty_u16=30000, align=PWM.HEAD, sync=True)
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# Start with Pin('D4') at submodule 0, which creates the sync pulse.
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pwm4 = PWM(Pin('D4'), freq=1000, align=PWM.HEAD)
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# Pins D5, D6, and D9 are pins at the same module
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pwm5 = PWM(Pin('D5'), freq=1000, duty_u16=10000, align=PWM.HEAD, sync=True)
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pwm6 = PWM(Pin('D6', freq=1000, duty_u16=20000, align=PWM.HEAD, sync=True)
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pwm9 = PWM(Pin('D9'), freq=1000, duty_u16=30000, align=PWM.HEAD, sync=True)
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pwm3 # show the PWM objects properties
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@ -256,7 +254,7 @@ Use the :ref:`machine.ADC <machine.ADC>` class::
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from machine import ADC
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adc = ADC(Pin(32)) # create ADC object on ADC pin
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adc = ADC(Pin('A2')) # create ADC object on ADC pin
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adc.read_u16() # read value, 0-65536 across voltage range 0.0v - 3.3v
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The resolution of the ADC is 12 bit with 10 to 11 bit accuracy, irrespective of the
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@ -274,7 +272,7 @@ Software SPI (using bit-banging) works on all pins, and is accessed via the
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# construct a SoftSPI bus on the given pins
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# polarity is the idle state of SCK
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# phase=0 means sample on the first edge of SCK, phase=1 means the second
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spi = SoftSPI(baudrate=100000, polarity=1, phase=0, sck=Pin(0), mosi=Pin(2), miso=Pin(4))
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spi = SoftSPI(baudrate=100000, polarity=1, phase=0, sck=Pin('D0'), mosi=Pin('D2'), miso=Pin('D4'))
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spi.init(baudrate=200000) # set the baudrate
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@ -303,7 +301,7 @@ rates (up to 30Mhz). Hardware SPI is accessed via the
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from machine import SPI, Pin
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spi = SPI(0, 10000000)
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cs_pin = Pin(6, Pin.OUT, value=1)
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cs_pin = Pin('D6', Pin.OUT, value=1)
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cs_pin(0)
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spi.write('Hello World')
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cs_pin(1)
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@ -331,7 +329,7 @@ accessed via the :ref:`machine.SoftI2C <machine.SoftI2C>` class::
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from machine import Pin, SoftI2C
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i2c = SoftI2C(scl=Pin(5), sda=Pin(4), freq=100000)
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i2c = SoftI2C(scl=Pin('D5'), sda=Pin('D4'), freq=100000)
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i2c.scan() # scan for devices
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@ -365,7 +363,7 @@ See :ref:`machine.I2S <machine.I2S>`. Example using a Teensy 4.1 board with a si
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external Codec like UDA1334.::
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from machine import I2S, Pin
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i2s = I2S(2, sck=Pin(26), ws=Pin(27), sd=Pin(7),
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i2s = I2S(2, sck=Pin('D26'), ws=Pin('D27'), sd=Pin('D7'),
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mode=I2S.TX, bts=16,format=I2S.STEREO,
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rate=44100,ibuf=40000)
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i2s.write(buf) # write buffer of audio samples to I2S device
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@ -397,7 +395,7 @@ Example using the Teensy audio shield::
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from machine import I2C, I2S, Pin
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from sgtl5000 import CODEC
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i2s = I2S(1, sck=Pin(21), ws=Pin(20), sd=Pin(7), mck=Pin(23),
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i2s = I2S(1, sck=Pin('D21'), ws=Pin('D20'), sd=Pin('D7'), mck=Pin('D23'),
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mode=I2S.TX, bits=16,rate=44100,format=I2S.STEREO,
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ibuf=40000,
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)
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@ -475,7 +473,7 @@ The OneWire driver is implemented in software and works on all pins::
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from machine import Pin
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import onewire
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ow = onewire.OneWire(Pin(12)) # create a OneWire bus on GPIO12
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ow = onewire.OneWire(Pin('D12')) # create a OneWire bus on GPIO12
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ow.scan() # return a list of devices on the bus
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ow.reset() # reset the bus
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ow.readbyte() # read a byte
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@ -505,12 +503,12 @@ The DHT driver is implemented in software and works on all pins::
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import dht
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import machine
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d = dht.DHT11(machine.Pin(4))
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d = dht.DHT11(machine.Pin('D4'))
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d.measure()
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d.temperature() # eg. 23 (°C)
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d.humidity() # eg. 41 (% RH)
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d = dht.DHT22(machine.Pin(4))
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d = dht.DHT22(machine.Pin('D4'))
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d.measure()
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d.temperature() # eg. 23.6 (°C)
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d.humidity() # eg. 41.3 (% RH)
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