Add ISR.ino

Реализованы прерывания по таймеру

IntervalometerForCamera/ISR.ino

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+/*  Intervalometer / Timer for interval shooting.
+    Copyright © 2022 Timur Khabibulin.
+    All rights reserved.
+
+    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, either version 3 of the License, or
+    (at your option) any later version.
+
+    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 <https://www.gnu.org/licenses/>.
+*/
+
+ISR(TIMER1_COMPA_vect) {
+  hwTimer1.count++; // Период 1 с
+
+  static uint32_t intervalTime;
+  static bool sleepState = false;
+
+  if (camSettings.longExpNR) intervalTime = camSettings.interval + camSettings.shutter_speed / 1000;
+  else intervalTime = camSettings.interval;
+
+  if (camSettings.hibernationSt) hibernation(intervalTime, sleepState);
+
+  if (hwTimer1.count >= intervalTime) {
+    if (camSettings.frame_rate > 0) {
+      if (camSettings.AFControl) digitalWrite(FOCUS_PIN, HIGH);
+      digitalWrite(SHUTTER_PIN, HIGH);
+    }
+    hw_Timer_1_Stop();
+    hw_Timer_2_Start();
+  }
+
+}
+
+ISR(TIMER2_COMPA_vect) {
+  hwTimer2.count += 2; // Период 2 мс
+
+  if (hwTimer2.count >= camSettings.shutter_speed) {
+    if (camSettings.frame_rate > 0) {
+      if (camSettings.AFControl) digitalWrite(FOCUS_PIN, LOW);
+      digitalWrite(SHUTTER_PIN, LOW);
+      camSettings.frame_rate--;
+    }
+    hw_Timer_2_Stop();
+    hw_Timer_1_Start();
+  }
+
+}