maskIRQ: Fixed function to clear interrupt bits first.

02424869 · Abdullah Baig · 95926b2c · 02424869
Commit 02424869 authored Feb 05, 2016 by Abdullah Baig
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RF24.cpp RF24.cpp +6 -1

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--- a/RF24.cpp
+++ b/RF24.cpp
@@ -1016,7 +1016,12 @@ bool RF24::txStandBy(uint32_t timeout, bool startTx){

 void RF24::maskIRQ(bool tx, bool fail, bool rx){

-	write_register(CONFIG, ( read_register(CONFIG) ) | fail << MASK_MAX_RT | tx << MASK_TX_DS | rx << MASK_RX_DR  );
+	uint8_t config = read_register(CONFIG);
+	/* clear the interrupt flags */
+	config &= ~(1 << MASK_MAX_RT | 1 << MASK_TX_DS | 1 << MASK_RX_DR);
+	/* set the specified interrupt flags */
+	config |= fail << MASK_MAX_RT | tx << MASK_TX_DS | rx << MASK_RX_DR;
+	write_register(CONFIG, config);
 }

 /****************************************************************************/