en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

Diff: common/SPI.cpp

Revision:
119:3921aeca8633
Parent:
0:9b334a45a8ff
--- a/common/SPI.cpp	Wed Apr 27 19:30:12 2016 +0100
+++ b/common/SPI.cpp	Fri Apr 29 01:15:11 2016 +0100
@@ -124,7 +124,12 @@
     if (_transaction_buffer.full()) {
         return -1; // the buffer is full
     } else {
+        __disable_irq();
         _transaction_buffer.push(transaction);
+        if (!spi_active(&_spi)) {
+            dequeue_transaction();
+        }
+        __enable_irq();
         return 0;
     }
 #else