Philip Holifield / microbit-dal

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Dependencies:   BLE_API mbed-dev-bin nRF51822

Dependents:   microbit

Fork of microbit-dal by Lancaster University

Files at this revision

API Documentation at this revision

Revision 70:ce33cdf741b5, committed 2016-07-13

Comitter:
LancasterUniversity
Date:
Wed Jul 13 12:18:50 2016 +0100
Parent:
69:b62f231e51ce
Child:
71:2f5caf7dd454
Commit message:
Synchronized with git rev 4fd5b0b6
Author: Charles Hemming
Protection from ISR added to queueDepth counter (#175 )

Changed in this revision

source/drivers/MicroBitRadio.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/source/drivers/MicroBitRadio.cpp	Wed Jul 13 12:18:49 2016 +0100
+++ b/source/drivers/MicroBitRadio.cpp	Wed Jul 13 12:18:50 2016 +0100
@@ -452,8 +452,14 @@
 
     if (p)
     {
+         // Protect shared resource from ISR activity
+        NVIC_DisableIRQ(RADIO_IRQn); 
+
         rxQueue = rxQueue->next;
         queueDepth--;
+
+        // Allow ISR access to shared resource
+        NVIC_EnableIRQ(RADIO_IRQn);
     }
 
     return p;