tomtor

/*
  Blink ULP Hartbeat and read DHT22 in ULP code

  Tom Vijlbrief oct 2017
*/

#include <time.h>
#include <sys/time.h>

#include "driver/rtc_io.h"

tomtor

/*******************************************************************************
   Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
             (c) 2017 Tom Vijlbrief

   Permission is hereby granted, free of charge, to anyone
   obtaining a copy of this document and accompanying files,
   to do whatever they want with them without any restriction,
   including, but not limited to, copying, modification and redistribution.
   NO WARRANTY OF ANY KIND IS PROVIDED.

tomtor

/*******************************************************************************
   Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
             (c) 2017 Tom Vijlbrief

   Permission is hereby granted, free of charge, to anyone
   obtaining a copy of this document and accompanying files,
   to do whatever they want with them without any restriction,
   including, but not limited to, copying, modification and redistribution.
   NO WARRANTY OF ANY KIND IS PROVIDED.

tomtor

/*
 * Demo of Stack and subroutine macros for ESP32 ULP
 *
 * R3 is the SP
 */

#include "soc/rtc_cntl_reg.h"
#include "soc/rtc_io_reg.h"
#include "soc/soc_ulp.h"

tomtor

#include <libmaple/pwr.h>
#include <libmaple/scb.h>

#include <RTClock.h>

// Define the Base address of the RTC registers (battery backed up CMOS Ram), so we can use them for config of touch screen or whatever.
// See http://stm32duino.com/viewtopic.php?f=15&t=132&hilit=rtc&start=40 for a more details about the RTC NVRam
// 10x 16 bit registers are available on the STM32F103CXXX more on the higher density device.
#define BKP_REG_BASE   ((uint32_t *)(0x40006C00 + 0x04))