Rishin Amin / Mbed 2 deprecated simple-demo-76_revised_20171113_copy

investigating UART crash

Dependencies:   mbed LoRaWAN-lib_publishing_testing_UART_bug SingleFrequencyLora

Fork of simple-demo-76_revised_20171113 by Christopher De Bank

Diff: board/board.cpp

Revision:
9:ee9dcbb9708d
Parent:
1:352f608c3337
diff -r 8d6f486e1a7d -r ee9dcbb9708d board/board.cpp
--- a/board/board.cpp	Tue Apr 04 13:43:31 2017 +0000
+++ b/board/board.cpp	Mon Apr 24 13:38:31 2017 +0000
@@ -17,6 +17,28 @@
 
 SX1276MB1xAS Radio( NULL );
 
+/*!
+ * Nested interrupt counter.
+ *
+ * \remark Interrupt should only be fully disabled once the value is 0
+ */
+static uint8_t IrqNestLevel = 0;
+
+void BoardDisableIrq( void )
+{
+    __disable_irq( );
+    IrqNestLevel++;
+}
+
+void BoardEnableIrq( void )
+{
+    IrqNestLevel--;
+    if( IrqNestLevel == 0 )
+    {
+        __enable_irq( );
+    }
+}
+
 void BoardInit( void )
 {
     TimerTimeCounterInit( );