147 lines
3.6 KiB
Python
147 lines
3.6 KiB
Python
# SPDX-FileCopyrightText: 2018 Shawn Hymel for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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print("pins test")
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"""
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`adafruit_boardtest.boardtest_gpio`
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====================================================
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Toggles all available GPIO on a board. Verify their operation with an LED,
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multimeter, another microcontroller, etc.
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Run this script as its own main.py to individually run the test, or compile
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with mpy-cross and call from separate test script.
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* Author(s): Shawn Hymel for Adafruit Industries
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Implementation Notes
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--------------------
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**Software and Dependencies:**
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* Adafruit CircuitPython firmware for the supported boards:
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https://github.com/adafruit/circuitpython/releases
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"""
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import time
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import board
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import digitalio
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import supervisor
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__version__ = "0.0.0-auto.0"
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__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_BoardTest.git"
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# Constants
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LED_ON_DELAY_TIME = 0.2 # Seconds
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LED_OFF_DELAY_TIME = 0.2 # Seconds
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LED_PIN_NAMES = ["L", "LED", "RED_LED", "GREEN_LED", "BLUE_LED"]
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# Test result strings
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PASS = "PASS"
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FAIL = "FAIL"
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NA = "N/A"
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# Determine if given value is a number
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def _is_number(val):
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try:
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float(val)
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return True
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except ValueError:
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return False
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# Release pins
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def _deinit_pins(gpios):
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for g in gpios:
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g.deinit()
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# Toggle IO pins while waiting for answer
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def _toggle_wait(pin_gpios):
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timestamp = time.monotonic()
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led_state = False
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failed = []
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for pg in pin_gpios:
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(pin, gpio) = pg
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print("Is pin %s toggling? [y/n]" % pin)
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done = False
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while not done:
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if led_state:
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if time.monotonic() > timestamp + LED_ON_DELAY_TIME:
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led_state = False
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timestamp = time.monotonic()
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else:
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if time.monotonic() > timestamp + LED_OFF_DELAY_TIME:
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led_state = True
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timestamp = time.monotonic()
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gpio.value = led_state
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if supervisor.runtime.serial_bytes_available:
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answer = input()
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if bool(answer == "y"):
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done = True
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elif bool(answer == "n"):
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failed += pin
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done = True
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return failed
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def buildPin(pin):
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gpio = digitalio.DigitalInOut(pin)
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return gpio
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def run_test(pins):
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"""
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Toggles all available GPIO on and off repeatedly.
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:param list[str] pins: list of pins to run the test on
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:return: tuple(str, list[str]): test result followed by list of pins tested
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"""
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# Create a list of analog GPIO pins
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analog_pins = [p for p in pins if p[0] == "A" and _is_number(p[1])]
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# Create a list of digital GPIO
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digital_pins = [p for p in pins if p[0] == "D" and _is_number(p[1])]
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# Toggle LEDs if we find any
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gpio_pins = analog_pins + digital_pins
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if gpio_pins:
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# Print out the LEDs found
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print("GPIO pins found:", end=" ")
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for pin in gpio_pins:
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print(pin, end=" ")
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print("\n")
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# Create a list of IO objects for us to toggle
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gpios = [buildPin(getattr(board, p)) for p in gpio_pins]
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print("built GPIOs")
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# Set all IO to output
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for gpio in gpios:
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gpio.direction = digitalio.Direction.OUTPUT
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# Toggle pins while waiting for user to verify LEDs blinking
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result = _toggle_wait(zip(gpio_pins, gpios))
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# Release pins
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_deinit_pins(gpios)
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if result:
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return FAIL, gpio_pins
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return PASS, gpio_pins
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# Else (no pins found)
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print("No GPIO pins found")
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return NA, []
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run_test([p for p in dir(board)])
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