fix examples

Author: P-R-O-C-H-Y

libraries/ESP32/examples/Timer/RepeatTimer/RepeatTimer.ino

@@ -11,7 +11,7 @@
 // Stop button is attached to PIN 0 (IO0)
 #define BTN_STOP_ALARM    0
 
-hw_timer_t * timer = NULL;
+hw_timer_t timer = NULL;
 volatile SemaphoreHandle_t timerSemaphore;
 portMUX_TYPE timerMux = portMUX_INITIALIZER_UNLOCKED;
 
@@ -38,20 +38,15 @@ void setup() {
   // Create semaphore to inform us when the timer has fired
   timerSemaphore = xSemaphoreCreateBinary();
 
-  // Use 1st timer of 4 (counted from zero).
-  // Set 80 divider for prescaler (see ESP32 Technical Reference Manual for more
-  // info).
-  timer = timerBegin(0, 80, true);
+  // Set timer frequency to 1Mhz
+  timer = timerBegin(1000000, true);
 
   // Attach onTimer function to our timer.
-  timerAttachInterrupt(timer, &onTimer, true);
+  timerAttachInterrupt(timer, &onTimer);
 
   // Set alarm to call onTimer function every second (value in microseconds).
-  // Repeat the alarm (third parameter)
-  timerAlarmWrite(timer, 1000000, true);
-
-  // Start an alarm
-  timerAlarmEnable(timer);
+  // Repeat the alarm (third parameter) with unlimited count = 0 (fourth parameter).
+  timerAlarmWrite(timer, 1000000, true, 0);
 }
 
 void loop() {

libraries/ESP32/examples/Timer/WatchdogTimer/WatchdogTimer.ino

@@ -3,7 +3,7 @@
 
 const int button = 0;         //gpio to use to trigger delay
 const int wdtTimeout = 3000;  //time in ms to trigger the watchdog
-hw_timer_t *timer = NULL;
+hw_timer_t timer = NULL;
 
 void ARDUINO_ISR_ATTR resetModule() {
   ets_printf("reboot\n");
@@ -15,11 +15,10 @@ void setup() {
   Serial.println();
   Serial.println("running setup");
 
-  pinMode(button, INPUT_PULLUP);                    //init control pin
-  timer = timerBegin(0, 80, true);                  //timer 0, div 80
-  timerAttachInterrupt(timer, &resetModule, true);  //attach callback
-  timerAlarmWrite(timer, wdtTimeout * 1000, false); //set time in us
-  timerAlarmEnable(timer);                          //enable interrupt
+  pinMode(button, INPUT_PULLUP);                       //init control pin
+  timer = timerBegin(1000000, true);                   //timer 1Mhz resolution
+  timerAttachInterrupt(timer, &resetModule);           //attach callback
+  timerAlarmWrite(timer, wdtTimeout * 1000, false, 0); //set time in us
 }
 
 void loop() {