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 `mbed` core
2. Add astyle using `allman` style. Restyle the library

CONTRIBUTING.md

@@ -15,7 +15,8 @@ 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
-* Arduino `mbed` Core Version (e.g. Arduino `mbed` core v1.3.2 or Arduino `mbed_nano` core v2.7.2)
+* `nRF52840 mbed` Core Version (e.g. Arduino mbed_nano core v3.4.1, Seeeduino mbed core v2.7.2)
+* `nRF52840-based Nano_33_BLE` Board type (e.g. Nano_33_BLE, Nano_33_BLE_Sense, SEEED_XIAO_NRF52840 and SEEED_XIAO_NRF52840_SENSE, etc.)
 * 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:
@@ -27,12 +28,13 @@ Please ensure to specify the following:
 
 ```
 Arduino IDE version: 1.8.19
-Arduino mbed_nano` core v2.7.2
+Arduino mbed_nano core v3.4.1
+Nano_33_BLE board
 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. ...
@@ -41,13 +43,31 @@ Steps to reproduce:
 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_MBED_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_MBED_Slow_PWM_GitHub/
+xy@xy-Inspiron-3593:~/Arduino/xy/nRF52_MBED_Slow_PWM_GitHub$
+```
+
+2. Issue astyle command
+
+```
+xy@xy-Inspiron-3593:~/Arduino/xy/nRF52_MBED_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 +23,11 @@
 
 ## 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 `mbed` core
+2. Add astyle using `allman` style. Restyle the library
+
 ### 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

@@ -58,7 +58,7 @@ NRF52_MBED_Slow_PWM ISR_PWM;
 //////////////////////////////////////////////////////
 
 void TimerHandler()
-{ 
+{
   ISR_PWM.run();
 }
 
@@ -89,15 +89,15 @@ 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, 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
 };
 
 // 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
+  111111L,   100000L,    66667L,    50000L,    40000L,   33333L,     25000L,    20000L
 };
 
 // You can assign any interval for any timer here, in Hz
@@ -110,7 +110,7 @@ float PWM_Freq[] =
 // 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,
+  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
 };
 
@@ -186,18 +186,19 @@ void doingSomething15()
 
 irqCallback irqCallbackStartFunc[] =
 {
-  doingSomething0,  doingSomething1,  doingSomething2,  doingSomething3, 
-  doingSomething4,  doingSomething5,  doingSomething6,  doingSomething7, 
+  doingSomething0,  doingSomething1,  doingSomething2,  doingSomething3,
+  doingSomething4,  doingSomething5,  doingSomething6,  doingSomething7,
   doingSomething8,  doingSomething9,  doingSomething10, doingSomething11,
   doingSomething12, doingSomething13, doingSomething14, doingSomething15
 };
 
 ////////////////////////////////////////////////
 
 void setup()
-{ 
+{
   Serial.begin(115200);
-  while (!Serial);
+
+  while (!Serial && millis() < 5000);
 
   delay(2000);
 
@@ -208,7 +209,8 @@ void setup()
   if (ITimer.attachInterruptInterval(HW_TIMER_INTERVAL_US, TimerHandler))
   {
     startMicros = micros();
-    Serial.print(F("Starting ITimer OK, micros() = ")); Serial.println(startMicros);
+    Serial.print(F("Starting ITimer OK, micros() = "));
+    Serial.println(startMicros);
   }
   else
     Serial.println(F("Can't set ITimer. Select another freq. or timer"));
@@ -226,13 +228,13 @@ void setup()
     ISR_PWM.setPWM(PWM_Pin[i], PWM_Freq[i], PWM_DutyCycle[i], irqCallbackStartFunc[i]);
 
 #else
-  #if USING_MICROS_RESOLUTION
+#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
+#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
   }
 }