56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft 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 "supervisor/board.h"
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#include "nrf.h"
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#include "nrf_rtc.h"
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void board_init(void) {
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// Initializations below from Arduino variant.cpp.
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// // turn power LED on
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// pinMode(LED_PWR, OUTPUT);
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// digitalWrite(LED_PWR, HIGH);
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// Errata Nano33BLE - I2C pullup is on SWO line, need to disable TRACE
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// was being enabled by nrfx_clock_anomaly_132
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CoreDebug->DEMCR = 0;
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NRF_CLOCK->TRACECONFIG = 0;
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// FIXME: bootloader enables interrupt on COMPARE[0], which we don't handle
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// Disable it here to avoid getting stuck when OVERFLOW irq is triggered
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nrf_rtc_event_disable(NRF_RTC1, NRF_RTC_INT_COMPARE0_MASK);
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nrf_rtc_int_disable(NRF_RTC1, NRF_RTC_INT_COMPARE0_MASK);
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// // FIXME: always enable I2C pullup and power @startup
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// // Change for maximum powersave
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// pinMode(PIN_ENABLE_SENSORS_3V3, OUTPUT);
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// pinMode(PIN_ENABLE_I2C_PULLUP, OUTPUT);
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// digitalWrite(PIN_ENABLE_SENSORS_3V3, HIGH);
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// digitalWrite(PIN_ENABLE_I2C_PULLUP, HIGH);
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}
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