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Author: khoih-prog

examples/Argument_None/Argument_None.ino

@@ -5,7 +5,7 @@
  * 
  * Built by Khoi Hoang https://github.com/khoih-prog/ESP32TimerInterrupt
  * Licensed under MIT license
- * Version: v1.0.0
+ * Version: v1.0.1
  * 
  * Notes:
  * Special design is necessary to share data between interrupt code and the rest of your program.
@@ -24,12 +24,12 @@
 #include "ESP8266TimerInterrupt.h"
 
 #ifndef LED_BUILTIN
-#define LED_BUILTIN       2         // Pin D2 mapped to pin GPIO2/ADC12 of ESP32, control on-board LED
+#define LED_BUILTIN       2         // Pin D4 mapped to pin GPIO2/TXD1 of ESP8266, NodeMCU and WeMoS, control on-board LED
 #endif
 
 volatile uint32_t lastMillis = 0;
 
-void IRAM_ATTR TimerHandler(void)
+void ICACHE_RAM_ATTR TimerHandler(void)
 {
   static bool toggle = false;
   static bool started = false;

examples/ISR_RPM_Measure/ISR_RPM_Measure.ino

@@ -5,7 +5,7 @@
  * 
  * Built by Khoi Hoang https://github.com/khoih-prog/ESP8266TimerInterrupt
  * Licensed under MIT license
- * Version: v1.0.0
+ * Version: v1.0.1
  * 
  * Notes:
  * Special design is necessary to share data between interrupt code and the rest of your program.
@@ -55,12 +55,12 @@ volatile int debounceCounter;
 
 volatile bool activeState = false;
 
-void IRAM_ATTR detectRotation(void)
+void ICACHE_RAM_ATTR detectRotation(void)
 {
   activeState = true;
 }
 
-void IRAM_ATTR TimerHandler()
+void ICACHE_RAM_ATTR TimerHandler()
 {  
   static bool started = false;
 
@@ -111,7 +111,7 @@ void setup()
   pinMode(interruptPin, INPUT_PULLUP);  
 
   // Interval in microsecs
-  if (ITimer.attachInterruptInterval(TIMER_INTERVAL_MS, TimerHandler))
+  if (ITimer.attachInterruptInterval(TIMER_INTERVAL_MS * 1000, TimerHandler))
     Serial.println("Starting  ITimer OK, millis() = " + String(millis()));
   else
     Serial.println("Can't set ITimer. Select another freq. or interval");

examples/RPM_Measure/RPM_Measure.ino

@@ -5,7 +5,7 @@
  * 
  * Built by Khoi Hoang https://github.com/khoih-prog/ESP8266TimerInterrupt
  * Licensed under MIT license
- * Version: v1.0.0
+ * Version: v1.0.1
  * 
  * Notes:
  * Special design is necessary to share data between interrupt code and the rest of your program.
@@ -54,7 +54,7 @@ float avgRPM    = 0.00;
 
 volatile int debounceCounter;
 
-void IRAM_ATTR TimerHandler()
+void ICACHE_RAM_ATTR TimerHandler()
 {  
   static bool started = false;
 

examples/SwitchDebounce/SwitchDebounce.ino

@@ -5,7 +5,7 @@
  * 
  * Built by Khoi Hoang https://github.com/khoih-prog/ESP8266TimerInterrupt
  * Licensed under MIT license
- * Version: v1.0.0
+ * Version: v1.0.1
  * 
  * Notes:
  * Special design is necessary to share data between interrupt code and the rest of your program.
@@ -47,7 +47,7 @@ ESP8266Timer ITimer;
 volatile bool SWPressed     = false;
 volatile bool SWLongPressed = false;
 
-void IRAM_ATTR TimerHandler()
+void ICACHE_RAM_ATTR TimerHandler()
 {
   static unsigned int debounceCountSWPressed  = 0;
   static unsigned int debounceCountSWReleased = 0;

examples/TimerInterruptTest/TimerInterruptTest.ino

@@ -5,7 +5,7 @@
  * 
  * Built by Khoi Hoang https://github.com/khoih-prog/ESP8266TimerInterrupt
  * Licensed under MIT license
- * Version: v1.0.0
+ * Version: v1.0.1
  * 
  * Notes:
  * Special design is necessary to share data between interrupt code and the rest of your program.
@@ -25,7 +25,7 @@
 
 #include "ESP8266TimerInterrupt.h"
 
-#define BUILTIN_LED     2  //On board LED
+#define BUILTIN_LED     2       // Pin D4 mapped to pin GPIO2/TXD1 of ESP8266, NodeMCU and WeMoS, control on-board LED
 
 volatile bool statusLed = false;
 volatile uint32_t lastMillis = 0;

library.properties

@@ -1,5 +1,5 @@
 name=ESP8266TimerInterrupt
-version=1.0.0
+version=1.0.1
 author=Khoi Hoang
 maintainer=Khoi Hoang
 license=MIT

src/ESP8266TimerInterrupt.h

@@ -5,16 +5,17 @@
  * 
  * Built by Khoi Hoang https://github.com/khoih-prog/ESP32TimerInterrupt
  * Licensed under MIT license
- * Version: 1.0.0
- * The ESP32 has two timer groups, each one with two general purpose hardware timers. All the timers   
- * are based on 64 bits counters and 16 bit prescalers
- * The timer counters can be configured to count up or down and support automatic reload and software reload 
- * They can also generate alarms when they reach a specific value, defined by the software. 
- * The value of the counter can be read by the software program.
+ * Version: 1.0.1
+ *
+ * The ESP8266 timers are badly designed, using only 23-bit counter along with maximum 256 prescaler. They're only better than UNO / Mega.
+ * The ESP8266 has two hardware timers, but timer0 has been used for WiFi and it's not advisable to use. Only timer1 is available.
+ * The timer1's 23-bit counter terribly can count only up to 8,388,607. So the timer1 maximum interval is very short.
+ * Using 256 prescaler, maximum timer1 interval is only 26.843542 seconds !!!
  *
  * Version Modified By   Date      Comments
  * ------- -----------  ---------- -----------
  *  1.0.0   K Hoang      23/11/2019 Initial coding
+ *  1.0.1   K Hoang      25/11/2019 New release fixing compiler error
 ****************************************************************************************/
 
 #ifndef ESP8266TimerInterrupt_h