v1.4.2 to add support to Seeeduino nRF52

### Releases v1.4.2

1. Add support to Seeeduino nRF52840-based boards such as **Seeed_XIAO_NRF52840 and Seeed_XIAO_NRF52840_SENSE**, etc. using Seeeduino `nRF52` core
2. Add astyle using `allman` style. Restyle the library
3. Update all examples

CONTRIBUTING.md

@@ -15,7 +15,7 @@ If you don't find anything, please [open a new issue](https://github.com/khoih-p
 Please ensure to specify the following:
 
 * Arduino IDE version (e.g. 1.8.19) or Platform.io version
-* `NRF52` Core Version (e.g. Adafruit NRF52 core v1.3.0)
+* `NRF52` Core Version (e.g. Adafruit NRF52 core v1.3.0, Seeed nRF52 core v1.0.0)
 * Contextual information (e.g. what you were trying to achieve)
 * Simplest possible steps to reproduce
 * Anything that might be relevant in your opinion, such as:
@@ -27,26 +27,46 @@ Please ensure to specify the following:
 
 ```
 Arduino IDE version: 1.8.19
-Arduino NRF52 Core Version 1.3.0
+Adafruit NRF52 Core Version 1.3.0
+NRF52840_ITSYBITSY
 OS: Ubuntu 20.04 LTS
-Linux xy-Inspiron-3593 5.4.0-100-generic #113-Ubuntu SMP Thu Feb 3 18:43:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
+Linux xy-Inspiron-3593 5.15.0-52-generic #58~20.04.1-Ubuntu SMP Thu Oct 13 13:09:46 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
 
 Context:
-I encountered a crash while trying to use the Timer Interrupt.
+I encountered a crash while using this library
 
 Steps to reproduce:
 1. ...
 2. ...
 3. ...
 4. ...
 ```
+
+---
+
 ### Sending Feature Requests
 
 Feel free to post feature requests. It's helpful if you can explain exactly why the feature would be useful.
 
 There are usually some outstanding feature requests in the [existing issues list](https://github.com/khoih-prog/NRF52_TimerInterrupt/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement), feel free to add comments to them.
 
+---
+
 ### Sending Pull Requests
 
 Pull Requests with changes and fixes are also welcome!
 
+Please use the `astyle` to reformat the updated library code as follows (demo for Ubuntu Linux)
+
+1. Change directory to the library GitHub
+
+```
+xy@xy-Inspiron-3593:~$ cd Arduino/xy/NRF52_TimerInterrupt_GitHub/
+xy@xy-Inspiron-3593:~/Arduino/xy/NRF52_TimerInterrupt_GitHub$
+```
+
+2. Issue astyle command
+
+```
+xy@xy-Inspiron-3593:~/Arduino/xy/NRF52_TimerInterrupt_GitHub$ bash utils/restyle.sh
+```

changelog.md

@@ -12,6 +12,7 @@
 ## Table of Contents
 
 * [Changelog](#changelog)
+  * [Releases v1.4.2](#releases-v142)
   * [Releases v1.4.1](#releases-v141)
   * [Releases v1.4.0](#releases-v140)
   * [Releases v1.3.0](#releases-v130)
@@ -26,6 +27,12 @@
 
 ## Changelog
 
+### Releases v1.4.2
+
+1. Add support to Seeeduino nRF52840-based boards such as **Seeed_XIAO_NRF52840 and Seeed_XIAO_NRF52840_SENSE**, etc. using Seeeduino `nRF52` core
+2. Add astyle using `allman` style. Restyle the library
+3. Update all examples
+
 ### Releases v1.4.1
 
 1. Add support to `Sparkfun Pro nRF52840 Mini`

examples/Argument_None/Argument_None.ino

@@ -25,13 +25,6 @@
    or the entire sequence of your code which accesses the data.
 */
 
-#if !(defined(NRF52840_FEATHER) || defined(NRF52832_FEATHER) || defined(NRF52_SERIES) || defined(ARDUINO_NRF52_ADAFRUIT) || \
-      defined(NRF52840_FEATHER_SENSE) || defined(NRF52840_ITSYBITSY) || defined(NRF52840_CIRCUITPLAY) || \
-      defined(NRF52840_CLUE) || defined(NRF52840_METRO) || defined(NRF52840_PCA10056) || defined(PARTICLE_XENON) || \
-      defined(NRF52840_LED_GLASSES) || defined(MDBT50Q_RX) || defined(NINA_B302_ublox) || defined(NINA_B112_ublox) )
-  #error This code is designed to run on Adafruit nRF52 platform! Please check your Tools->Board setting.
-#endif
-
 // These define's must be placed at the beginning before #include "NRF52TimerInterrupt.h"
 // _TIMERINTERRUPT_LOGLEVEL_ from 0 to 4
 // Don't define _TIMERINTERRUPT_LOGLEVEL_ > 0. Only for special ISR debugging only. Can hang the system.
@@ -47,11 +40,19 @@
 //#endif
 
 #ifndef LED_BLUE_PIN
-  #define LED_BLUE_PIN          7
+  #if defined(LED_BLUE)
+    #define LED_BLUE_PIN          LED_BLUE
+  #else
+    #define LED_BLUE_PIN          7
+  #endif
 #endif
 
-#ifndef LED_RED
-  #define LED_RED               8
+#ifndef LED_GREEN_PIN
+  #if defined(LED_GREEN)
+    #define LED_GREEN_PIN           LED_GREEN
+  #else
+    #define LED_GREEN_PIN           8
+  #endif
 #endif
 
 #define TIMER0_INTERVAL_MS        1000   //1000
@@ -74,9 +75,12 @@ volatile uint32_t Timer1Count = 0;
 
 void printResult(uint32_t currTime)
 {
-  Serial.print(F("Time = ")); Serial.print(currTime);
-  Serial.print(F(", Timer0Count = ")); Serial.print(Timer0Count);
-  Serial.print(F(", Timer1Count = ")); Serial.println(Timer1Count);
+  Serial.print(F("Time = "));
+  Serial.print(currTime);
+  Serial.print(F(", Timer0Count = "));
+  Serial.print(Timer0Count);
+  Serial.print(F(", Timer1Count = "));
+  Serial.println(Timer1Count);
 }
 
 void TimerHandler0()
@@ -97,7 +101,7 @@ void TimerHandler1()
 
   // Flag for checking to be sure ISR is working as Serial.print is not OK here in ISR
   Timer1Count++;
-  
+
   //timer interrupt toggles outputPin
   digitalWrite(LED_BLUE_PIN, toggle1);
   toggle1 = !toggle1;
@@ -107,28 +111,34 @@ void setup()
 {
   pinMode(LED_BUILTIN, OUTPUT);
   pinMode(LED_BLUE_PIN, OUTPUT);
-  
+
   Serial.begin(115200);
-  while (!Serial);
+
+  while (!Serial && millis() < 5000);
 
   delay(100);
-
-  Serial.print(F("\nStarting Argument_None on ")); Serial.println(BOARD_NAME);
+
+  Serial.print(F("\nStarting Argument_None on "));
+  Serial.println(BOARD_NAME);
   Serial.println(NRF52_TIMER_INTERRUPT_VERSION);
-  Serial.print(F("CPU Frequency = ")); Serial.print(F_CPU / 1000000); Serial.println(F(" MHz"));
+  Serial.print(F("CPU Frequency = "));
+  Serial.print(F_CPU / 1000000);
+  Serial.println(F(" MHz"));
 
   // Interval in microsecs
   if (ITimer0.attachInterruptInterval(TIMER0_INTERVAL_MS * 1000, TimerHandler0))
   {
-    Serial.print(F("Starting ITimer0 OK, millis() = ")); Serial.println(millis());
+    Serial.print(F("Starting ITimer0 OK, millis() = "));
+    Serial.println(millis());
   }
   else
     Serial.println(F("Can't set ITimer0. Select another freq. or timer"));
 
   // Interval in microsecs
   if (ITimer1.attachInterruptInterval(TIMER1_INTERVAL_MS * 1000, TimerHandler1))
   {
-    Serial.print(F("Starting ITimer1 OK, millis() = ")); Serial.println(millis());
+    Serial.print(F("Starting ITimer1 OK, millis() = "));
+    Serial.println(millis());
   }
   else
     Serial.println(F("Can't set ITimer1. Select another freq. or timer"));

examples/Change_Interval/Change_Interval.ino

@@ -25,13 +25,6 @@
    or the entire sequence of your code which accesses the data.
 */
 
-#if !(defined(NRF52840_FEATHER) || defined(NRF52832_FEATHER) || defined(NRF52_SERIES) || defined(ARDUINO_NRF52_ADAFRUIT) || \
-      defined(NRF52840_FEATHER_SENSE) || defined(NRF52840_ITSYBITSY) || defined(NRF52840_CIRCUITPLAY) || \
-      defined(NRF52840_CLUE) || defined(NRF52840_METRO) || defined(NRF52840_PCA10056) || defined(PARTICLE_XENON) || \
-      defined(NRF52840_LED_GLASSES) || defined(MDBT50Q_RX) || defined(NINA_B302_ublox) || defined(NINA_B112_ublox) )
-  #error This code is designed to run on Adafruit nRF52 platform! Please check your Tools->Board setting.
-#endif
-
 // These define's must be placed at the beginning before #include "NRF52TimerInterrupt.h"
 // _TIMERINTERRUPT_LOGLEVEL_ from 0 to 4
 // Don't define _TIMERINTERRUPT_LOGLEVEL_ > 0. Only for special ISR debugging only. Can hang the system.
@@ -47,11 +40,19 @@
 //#endif
 
 #ifndef LED_BLUE_PIN
-  #define LED_BLUE_PIN          7
+  #if defined(LED_BLUE)
+    #define LED_BLUE_PIN          LED_BLUE
+  #else
+    #define LED_BLUE_PIN          7
+  #endif
 #endif
 
-#ifndef LED_RED
-  #define LED_RED               8
+#ifndef LED_GREEN_PIN
+  #if defined(LED_GREEN)
+    #define LED_GREEN_PIN           LED_GREEN
+  #else
+    #define LED_GREEN_PIN           8
+  #endif
 #endif
 
 #define TIMER0_INTERVAL_MS        500   //1000
@@ -71,9 +72,12 @@ NRF52Timer ITimer1(NRF_TIMER_3);
 
 void printResult(uint32_t currTime)
 {
-  Serial.print(F("Time = ")); Serial.print(currTime); 
-  Serial.print(F(", Timer0Count = ")); Serial.print(Timer0Count);
-  Serial.print(F(", Timer1Count = ")); Serial.println(Timer1Count);
+  Serial.print(F("Time = "));
+  Serial.print(currTime);
+  Serial.print(F(", Timer0Count = "));
+  Serial.print(Timer0Count);
+  Serial.print(F(", Timer1Count = "));
+  Serial.println(Timer1Count);
 }
 
 void TimerHandler0()
@@ -94,7 +98,7 @@ void TimerHandler1()
 
   // Flag for checking to be sure ISR is working as Serial.print is not OK here in ISR
   Timer1Count++;
-  
+
   //timer interrupt toggles outputPin
   digitalWrite(LED_BLUE_PIN, toggle1);
   toggle1 = !toggle1;
@@ -104,28 +108,34 @@ void setup()
 {
   pinMode(LED_BUILTIN, OUTPUT);
   pinMode(LED_BLUE_PIN, OUTPUT);
-  
+
   Serial.begin(115200);
-  while (!Serial);
+
+  while (!Serial && millis() < 5000);
 
   delay(100);
-
-  Serial.print(F("\nStarting Change_Interval on ")); Serial.println(BOARD_NAME);
+
+  Serial.print(F("\nStarting Change_Interval on "));
+  Serial.println(BOARD_NAME);
   Serial.println(NRF52_TIMER_INTERRUPT_VERSION);
-  Serial.print(F("CPU Frequency = ")); Serial.print(F_CPU / 1000000); Serial.println(F(" MHz"));
-
+  Serial.print(F("CPU Frequency = "));
+  Serial.print(F_CPU / 1000000);
+  Serial.println(F(" MHz"));
+
   // Interval in microsecs
   if (ITimer0.attachInterruptInterval(TIMER0_INTERVAL_MS * 1000, TimerHandler0))
   {
-    Serial.print(F("Starting ITimer0 OK, millis() = ")); Serial.println(millis());
+    Serial.print(F("Starting ITimer0 OK, millis() = "));
+    Serial.println(millis());
   }
   else
     Serial.println(F("Can't set ITimer0. Select another freq. or timer"));
 
   // Interval in microsecs
   if (ITimer1.attachInterruptInterval(TIMER1_INTERVAL_MS * 1000, TimerHandler1))
   {
-    Serial.print(F("Starting ITimer1 OK, millis() = ")); Serial.println(millis());
+    Serial.print(F("Starting ITimer1 OK, millis() = "));
+    Serial.println(millis());
   }
   else
     Serial.println(F("Can't set ITimer1. Select another freq. or timer"));
@@ -152,12 +162,14 @@ void loop()
     {
       //setInterval(unsigned long interval, timerCallback callback)
       multFactor = (multFactor + 1) % 2;
-      
+
       ITimer0.setInterval(TIMER0_INTERVAL_MS * 1000 * (multFactor + 1), TimerHandler0);
       ITimer1.setInterval(TIMER1_INTERVAL_MS * 1000 * (multFactor + 1), TimerHandler1);
 
-      Serial.print(F("Changing Interval, Timer0 = ")); Serial.print(TIMER0_INTERVAL_MS * (multFactor + 1));
-      Serial.print(F(",  Timer1 = ")); Serial.println(TIMER1_INTERVAL_MS * (multFactor + 1)); 
+      Serial.print(F("Changing Interval, Timer0 = "));
+      Serial.print(TIMER0_INTERVAL_MS * (multFactor + 1));
+      Serial.print(F(",  Timer1 = "));
+      Serial.println(TIMER1_INTERVAL_MS * (multFactor + 1));
 
       lastChangeTime = currTime;
     }