47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Ha Thach (tinyusb.org) for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "esp32-hal-gpio.h"
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#include "pins_arduino.h"
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extern "C" {
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// Initialize variant/board, called before setup()
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void initVariant(void)
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{
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// This board has a power control pin, and we must set it to output and high
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// in order to enable the NeoPixels.
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pinMode(NEOPIXEL_POWER, OUTPUT);
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digitalWrite(NEOPIXEL_POWER, HIGH);
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// turn on the I2C power by setting pin to opposite of 'rest state'
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pinMode(PIN_I2C_POWER, INPUT);
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delay(1);
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bool polarity = digitalRead(PIN_I2C_POWER);
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pinMode(PIN_I2C_POWER, OUTPUT);
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digitalWrite(PIN_I2C_POWER, !polarity);
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}
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}
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