PTTimer.cpp

Go to the documentation of this file.

/*
 Name:      esp32TIMER.ino
 Created:   9/4/2021 6:55:06 PM
 Author:    wes
*/
#ifdef USE_PTTIMER
 
 
/* Copyright (c) 2017 pcbreflux. All Rights Reserved.
 *  https://www.youtube.com/watch?v=LONGI_JcwEQ&ab_channel=pcbreflux
 *  https://github.com/pcbreflux/espressif/tree/master/esp32/arduino/sketchbook/ESP32_multitimer
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
 *
 */
 //#include "PTTimer.h"
#if 0 //build errors   ex Severity  Code    Description Project File    Line    Suppression State
//Error     33:1 : error : 'hw_timer_t' does not name a type        C : \Projects\NimBLE_repo\NimBLE_PetTutor_Server\PTTimer.cpp    33
 
#define PRESCALE0 80
#define PRESCALE1 80
#define COUNT_UP true
#define COUNT_DOWN false
#define EDGE_TRIGGERED true
#define LEVEL_TRIGGERED false
 
hw_timer_t* timer0 = NULL;
//hw_timer_t* timer1 = NULL;
portMUX_TYPE timerMux0 = portMUX_INITIALIZER_UNLOCKED;
//portMUX_TYPE timerMux1 = portMUX_INITIALIZER_UNLOCKED;
 
//volatile uint8_t led1stat = 0; 
//volatile uint8_t led2stat = 0; 
 
/* Global Countdown Timers */
unsigned int u16CountDown0 = 0; // use for the x second timer on startup to update the device#
unsigned int u16CountDown1 = 0; // use for timing the 5 seconds after a manual feed button press on the feeder to lower and then raise the power
unsigned int u16CountDown2 = 0; // this is used to alert the program when flash is being updated
unsigned int u16CountDown3 = 0;
unsigned int u16CountDown4 = 0;
 
void TickService0(void)
{
    if (u16CountDown0) u16CountDown0--;
    if (u16CountDown1) u16CountDown1--;
    if (u16CountDown2) u16CountDown2--;
    if (u16CountDown3) u16CountDown3--;
    if (u16CountDown4) u16CountDown4--;
}
 
void IRAM_ATTR onTimer0() {
    portENTER_CRITICAL_ISR(&timerMux0);
    TickService0();
    portEXIT_CRITICAL_ISR(&timerMux0);
}
 
 
void PTTimerSetup() {
    timer0 = timerBegin(0, PRESCALE0, COUNT_UP);  // timer 0, MWDT clock period = 12.5 ns * TIMGn_Tx_WDT_CLK_PRESCALE -> 12.5 ns * 80 -> 1000 ns = 1 us, countUp
    timerAttachInterrupt(timer0, &onTimer0, EDGE_TRIGGERED); // edge (not level) triggered 
    timerAlarmWrite(timer0, 1000, true); // 1000 * 1 us = 1 ms, autoreload true
 
    // at least enable the timer alarms
    timerAlarmEnable(timer0); // enable
    u16CountDown0 = 0;
    u16CountDown1 = 0;
    u16CountDown2 = 0;
    u16CountDown3 = 0;
    u16CountDown4 = 0;
}
 
void test() {
    // nope nothing here
    if (!u16CountDown2) {
//      SerialDebug.print(u16CountDown2);
//      SerialDebug.println(String("  ...onTimer0() ") + String(millis()));
        if (millis() > 10000) {
            u16CountDown2 = 1000;
        }
        else {
            u16CountDown2 = 200;
        }
 
    }
}
#endif //0
 
#endif //USE_PT_TIMER