v1.2.2 to add support to Seeeduino nRF52

### Releases v1.2.2

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
4. Update `Packages' Patches` to add Seeeduino `nRF52` core

Author: khoih-prog

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:
@@ -27,25 +27,47 @@ 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_Slow_PWM/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_Slow_PWM_GitHub/
+xy@xy-Inspiron-3593:~/Arduino/xy/nRF52_Slow_PWM_GitHub$
+```
+
+2. Issue astyle command
+
+```
+xy@xy-Inspiron-3593:~/Arduino/xy/nRF52_Slow_PWM_GitHub$ bash utils/restyle.sh
+```
+

changelog.md

@@ -12,6 +12,7 @@
 ## Table of Contents
 
 * [Changelog](#changelog)
+  * [Releases v1.2.2](#releases-v122)
   * [Releases v1.2.1](#releases-v121)
   * [Releases v1.2.0](#releases-v120)
   * [Releases v1.1.0](#releases-v110)
@@ -22,6 +23,13 @@
 
 ## Changelog
 
+### Releases v1.2.2
+
+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
+4. Update `Packages' Patches` to add Seeeduino `nRF52` core
+
 ### Releases v1.2.1
 
 1. Fix `DutyCycle` bug. Check [float precisison of DutyCycle only sometimes working #3](https://github.com/khoih-prog/SAMD_Slow_PWM/issues/3)

examples/ISR_16_PWMs_Array/ISR_16_PWMs_Array.ino

@@ -13,13 +13,6 @@
   This important feature is absolutely necessary for mission-critical tasks.
 *****************************************************************************************************************************/
 
-#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(MDBT50Q_RX) || defined(NINA_B302_ublox) || defined(NINA_B112_ublox) )
-  #error This code is designed to run on nRF52 platform! Please check your Tools->Board setting.
-#endif
-
 // These define's must be placed at the beginning before #include "ESP32_PWM.h"
 // _PWM_LOGLEVEL_ from 0 to 4
 // Don't define _PWM_LOGLEVEL_ > 0. Only for special ISR debugging only. Can hang the system.
@@ -34,15 +27,23 @@
 #define LED_ON              LOW
 
 #ifndef LED_BUILTIN
-  #define LED_BUILTIN       25
+	#define LED_BUILTIN       25
 #endif
 
-#ifndef LED_BLUE
-  #define LED_BLUE          10
+#ifndef LED_BLUE_PIN
+  #if defined(LED_BLUE)
+    #define LED_BLUE_PIN          LED_BLUE
+  #else
+    #define LED_BLUE_PIN          7
+  #endif
 #endif
 
-#ifndef LED_RED
-  #define LED_RED           11
+#ifndef LED_GREEN_PIN
+  #if defined(LED_GREEN)
+    #define LED_GREEN_PIN           LED_GREEN
+  #else
+    #define LED_GREEN_PIN           8
+  #endif
 #endif
 
 #define HW_TIMER_INTERVAL_US      20L
@@ -61,8 +62,8 @@ NRF52_Slow_PWM ISR_PWM;
 //////////////////////////////////////////////////////
 
 void TimerHandler()
-{ 
-  ISR_PWM.run();
+{
+	ISR_PWM.run();
 }
 
 //////////////////////////////////////////////////////
@@ -92,29 +93,29 @@ void TimerHandler()
 // You can assign pins here. Be carefull to select good pin to use or crash, e.g pin 6-11
 uint32_t PWM_Pin[] =
 {
-   LED_BUILTIN, LED_BLUE, LED_RED, PIN_D0, PIN_D1,  PIN_D2,  PIN_D3,  PIN_D4,
-        PIN_D5,   PIN_D6,  PIN_D7, PIN_D8, PIN_D9, PIN_D10, PIN_D11, PIN_D12
+	LED_BUILTIN, LED_BLUE_PIN, LED_GREEN_PIN, PIN_D0, PIN_D1,  PIN_D2,  PIN_D3,  PIN_D4,
+	PIN_D5,   PIN_D6,  PIN_D7, PIN_D8, PIN_D9, PIN_D10, PIN_D11, PIN_D12
 };
 
 // You can assign any interval for any timer here, in microseconds
 uint32_t PWM_Period[] =
 {
-  1000000L,   500000L,   333333L,   250000L,   200000L,   166667L,   142857L,   125000L,
-   111111L,   100000L,    66667L,    50000L,    40000L,   33333L,     25000L,    20000L
+	1000000L,   500000L,   333333L,   250000L,   200000L,   166667L,   142857L,   125000L,
+	111111L,   100000L,    66667L,    50000L,    40000L,   33333L,     25000L,    20000L
 };
 
 // You can assign any interval for any timer here, in Hz
 float PWM_Freq[] =
 {
-  1.0f,  2.0f,  3.0f,  4.0f,  5.0f,  6.0f,  7.0f,  8.0f,
-  9.0f, 10.0f, 15.0f, 20.0f, 25.0f, 30.0f, 40.0f, 50.0f
+	1.0f,  2.0f,  3.0f,  4.0f,  5.0f,  6.0f,  7.0f,  8.0f,
+	9.0f, 10.0f, 15.0f, 20.0f, 25.0f, 30.0f, 40.0f, 50.0f
 };
 
 // You can assign any interval for any timer here, in milliseconds
 float PWM_DutyCycle[] =
 {
-   5.0, 10.0, 20.0, 30.0, 40.0, 45.0, 50.0, 55.0,
-  60.0, 65.0, 70.0, 75.0, 80.0, 85.0, 90.0, 95.0
+	5.0, 10.0, 20.0, 30.0, 40.0, 45.0, 50.0, 55.0,
+	60.0, 65.0, 70.0, 75.0, 80.0, 85.0, 90.0, 95.0
 };
 
 typedef void (*irqCallback)  ();
@@ -189,57 +190,61 @@ void doingSomething15()
 
 irqCallback irqCallbackStartFunc[] =
 {
-  doingSomething0,  doingSomething1,  doingSomething2,  doingSomething3, 
-  doingSomething4,  doingSomething5,  doingSomething6,  doingSomething7, 
-  doingSomething8,  doingSomething9,  doingSomething10, doingSomething11,
-  doingSomething12, doingSomething13, doingSomething14, doingSomething15
+	doingSomething0,  doingSomething1,  doingSomething2,  doingSomething3,
+	doingSomething4,  doingSomething5,  doingSomething6,  doingSomething7,
+	doingSomething8,  doingSomething9,  doingSomething10, doingSomething11,
+	doingSomething12, doingSomething13, doingSomething14, doingSomething15
 };
 
 ////////////////////////////////////////////////
 
 void setup()
-{ 
-  Serial.begin(115200);
-  while (!Serial);
+{
+	Serial.begin(115200);
 
-  delay(2000);
+	while (!Serial && millis() < 5000);
 
-  Serial.print(F("\nStarting ISR_16_PWMs_Array on ")); Serial.println(BOARD_NAME);
-  Serial.println(NRF52_SLOW_PWM_VERSION);
+	delay(2000);
 
-  // Interval in microsecs
-  if (ITimer.attachInterruptInterval(HW_TIMER_INTERVAL_US, TimerHandler))
-  {
-    startMicros = micros();
-    Serial.print(F("Starting ITimer OK, micros() = ")); Serial.println(startMicros);
-  }
-  else
-    Serial.println(F("Can't set ITimer. Select another freq. or timer"));
+	Serial.print(F("\nStarting ISR_16_PWMs_Array on ")); Serial.println(BOARD_NAME);
+	Serial.println(NRF52_SLOW_PWM_VERSION);
+
+	// Interval in microsecs
+	if (ITimer.attachInterruptInterval(HW_TIMER_INTERVAL_US, TimerHandler))
+	{
+		startMicros = micros();
+		Serial.print(F("Starting ITimer OK, micros() = "));
+		Serial.println(startMicros);
+	}
+	else
+		Serial.println(F("Can't set ITimer. Select another freq. or timer"));
 
 #if 1
-  // Just to demonstrate, don't use too many ISR Timers if not absolutely necessary
-  // You can use up to 16 timer for each ISR_PWM
-  for (uint16_t i = 0; i < NUMBER_ISR_PWMS; i++)
-  {
-    //void setPWM(uint32_t pin, float frequency, float dutycycle
-    // , timer_callback_p StartCallback = nullptr, timer_callback_p StopCallback = nullptr)
+
+	// Just to demonstrate, don't use too many ISR Timers if not absolutely necessary
+	// You can use up to 16 timer for each ISR_PWM
+	for (uint16_t i = 0; i < NUMBER_ISR_PWMS; i++)
+	{
+		//void setPWM(uint32_t pin, float frequency, float dutycycle
+		// , timer_callback_p StartCallback = nullptr, timer_callback_p StopCallback = nullptr)
 
 #if USING_PWM_FREQUENCY
 
-    // You can use this with PWM_Freq in Hz
-    ISR_PWM.setPWM(PWM_Pin[i], PWM_Freq[i], PWM_DutyCycle[i], irqCallbackStartFunc[i]);
+		// You can use this with PWM_Freq in Hz
+		ISR_PWM.setPWM(PWM_Pin[i], PWM_Freq[i], PWM_DutyCycle[i], irqCallbackStartFunc[i]);
 
 #else
-  #if USING_MICROS_RESOLUTION
-    // Or using period in microsecs resolution
-    ISR_PWM.setPWM_Period(PWM_Pin[i], PWM_Period[i], PWM_DutyCycle[i], irqCallbackStartFunc[i]);
-  #else
-    // Or using period in millisecs resolution
-    ISR_PWM.setPWM_Period(PWM_Pin[i], PWM_Period[i] / 1000, PWM_DutyCycle[i], irqCallbackStartFunc[i]);
-  #endif
+#if USING_MICROS_RESOLUTION
+		// Or using period in microsecs resolution
+		ISR_PWM.setPWM_Period(PWM_Pin[i], PWM_Period[i], PWM_DutyCycle[i], irqCallbackStartFunc[i]);
+#else
+		// Or using period in millisecs resolution
+		ISR_PWM.setPWM_Period(PWM_Pin[i], PWM_Period[i] / 1000, PWM_DutyCycle[i], irqCallbackStartFunc[i]);
+#endif
+#endif
+	}
+
 #endif
-  }
-#endif  
 }
 
 void loop()