circuitpython/ports/mimxrt10xx/common-hal/rtc/RTC.c
RetiredWizard f66e865510 Use low power RTC on mimxrt10xx (Teensy41) boards
There are apparently two RTC interfaces in the mimxrt10xx dev
kit. The low power interface access the battery backed up hardware.

I've tested this on the Teensy41 and it seems to
fix issue #4574
2023-01-17 23:30:36 -05:00

88 lines
2.8 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Nick Moore for Adafruit Industries
* Copyright (c) 2019 Artur Pacholec
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdlib.h>
#include "py/obj.h"
#include "py/runtime.h"
#include "shared/timeutils/timeutils.h"
#include "shared-bindings/rtc/__init__.h"
#include "shared-bindings/rtc/RTC.h"
#include "common-hal/rtc/RTC.h"
#include "supervisor/shared/translate/translate.h"
#include "fsl_snvs_hp.h"
#include "fsl_snvs_lp.h"
void rtc_init(void) {
snvs_hp_rtc_config_t hpconfig;
SNVS_HP_RTC_GetDefaultConfig(&hpconfig);
SNVS_HP_RTC_Init(SNVS, &hpconfig);
snvs_lp_srtc_config_t lpconfig;
SNVS_LP_SRTC_GetDefaultConfig(&lpconfig);
SNVS_LP_SRTC_Init(SNVS, &lpconfig);
SNVS_LP_SRTC_StartTimer(SNVS);
SNVS_HP_RTC_StartTimer(SNVS);
}
void common_hal_rtc_get_time(timeutils_struct_time_t *tm) {
snvs_lp_srtc_datetime_t rtcDate;
SNVS_LP_SRTC_GetDatetime(SNVS, &rtcDate);
tm->tm_year = rtcDate.year;
tm->tm_mon = rtcDate.month;
tm->tm_mday = rtcDate.day;
tm->tm_hour = rtcDate.hour;
tm->tm_min = rtcDate.minute;
tm->tm_sec = rtcDate.second;
}
void common_hal_rtc_set_time(timeutils_struct_time_t *tm) {
snvs_lp_srtc_datetime_t rtcDate;
rtcDate.year = tm->tm_year;
rtcDate.month = tm->tm_mon;
rtcDate.day = tm->tm_mday;
rtcDate.hour = tm->tm_hour;
rtcDate.minute = tm->tm_min;
rtcDate.second = tm->tm_sec;
SNVS_LP_SRTC_SetDatetime(SNVS, &rtcDate);
}
int common_hal_rtc_get_calibration(void) {
return 0;
}
void common_hal_rtc_set_calibration(int calibration) {
// SNVS has HPCALB_VAL bits for calibration.
mp_raise_NotImplementedError_varg(translate("%q"), MP_QSTR_calibration);
}