Full Due support, maskIRQ function

- Tested and now fully functional on Arduino Due
- Added support for the extended SPI functions: brings Due performance
up to par with Due managing the CSN   pin and settings
- Corrected issues with printDetails() on Due
- Changed added variables to staticly defined types: ie: uint16_t
instead of unsigned int
- I think this will work on all ARM based boards that use the Arduino
libs
- Added maskIRQ function - to be used in RF24Network sleep mode
- Changed csn(int mode) to csn(bool mode)
- Updated GettingStarted_CallResponse.ino example: Capture start time
AFTER printing to serial so measurement is more accurate

README.md

@@ -2,7 +2,7 @@
   
 Design Goals: This library is designed to be...  
   
-* More complianct with the manufacturer specified operation of the chip  
+* More compliant with the manufacturer specified operation of the chip  
 * More reliable and feature rich  
 * Easy for beginners to use  
 * Consumed with a public interface that's similiar to other Arduino standard libraries  
@@ -14,6 +14,7 @@ April 2014: Optimization nearing completion
 * Changes to read() functionality have increased reliability and response  
 * Extended timeout periods have been added to aid in noisy or otherwise unreliable environments  
 * Delays have been removed where possible to ensure maximum efficiency  
+* Arduino Due fully supported with extended SPI functions
 * More! See the links below and class documentation for more info.  
   
 Please refer to:  

RF24.h

@@ -54,7 +54,6 @@ private:
   bool dynamic_payloads_enabled; /**< Whether dynamic payloads are enabled. */
   uint8_t ack_payload_length; /**< Dynamic size of pending ack payload. */
   uint64_t pipe0_reading_address; /**< Last address set on pipe 0 for reading. */
-  bool avail;
 
 public:
 
@@ -360,7 +359,7 @@ public:
    * @return True if transmission is successful
    *
    */
-   bool txStandBy(unsigned long timeout);
+   bool txStandBy(uint32_t timeout);
 
   /**
    * Write an ack payload for the specified pipe
@@ -699,7 +698,7 @@ private:
    *
    * @param mode HIGH to take this unit off the SPI bus, LOW to put it on
    */
-  void csn(int mode);
+  void csn(bool mode);
 
   /**
    * Set chip enable
@@ -707,7 +706,7 @@ private:
    * @param level HIGH to actively begin transmission or LOW to put in standby.  Please see data sheet
    * for a much more detailed description of this pin.
    */
-  void ce(int level);
+  void ce(bool level);
 
   /**
    * Read a chunk of data in from a register

RF24_config.h

@@ -24,9 +24,9 @@
   //#define MINIMAL
 
   // Define _BV for non-Arduino platforms and for Arduino DUE
-  #if ! defined(ARDUINO) || (defined(ARDUINO) && defined(__arm__))
-	#define _BV(x) (1<<(x))
-  #endif
+
+
+
 
   #undef SERIAL_DEBUG
   #ifdef SERIAL_DEBUG
@@ -35,27 +35,29 @@
 	#define IF_SERIAL_DEBUG(x)
   #endif
 
-  // Avoid spurious warnings
-  #if 1
-	#if ! defined( NATIVE ) && defined( ARDUINO ) && ! defined(__arm__)
-		#undef PROGMEM
-		#define PROGMEM __attribute__(( section(".progmem.data") ))
-		#undef PSTR
-		#define PSTR(s) (__extension__({static const char __c[] PROGMEM = (s); &__c[0];}))
-	#endif
-  #endif
-
-  // Progmem is Arduino-specific
-  #if defined(ARDUINO) && ! defined(__arm__)
-	#include <avr/pgmspace.h>
-	#define PRIPSTR "%S"
-  #else
+// Avoid spurious warnings
+// Arduino DUE is arm and uses traditional PROGMEM constructs
+#if 1
+#if ! defined( NATIVE ) && defined( ARDUINO ) && ! defined(__arm__)
+#undef PROGMEM
+#define PROGMEM __attribute__(( section(".progmem.data") ))
+#undef PSTR
+#define PSTR(s) (__extension__({static const char __c[] PROGMEM = (s); &__c[0];}))
+#endif
+#endif
+
+// Progmem is Arduino-specific
+// Arduino DUE is arm and does not include avr/pgmspace
+#if defined(ARDUINO) && ! defined(__arm__)
+#include <avr/pgmspace.h>
+#define PRIPSTR "%S"
+#else
+#if ! defined(ARDUINO) // This doesn't work on Arduino DUE
+typedef char const char;
+#else // Fill in pgm_read_byte that is used, but missing from DUE
+#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
+#endif
 
-  	#if ! defined(ARDUINO)
-	  typedef char const char;
-      else // Fill in pgm_read_byte that is used, but missing from DUE
-	  #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
-	#endif
 	typedef uint16_t prog_uint16_t;
 	#define PSTR(x) (x)
 	#define printf_P printf
@@ -66,14 +68,18 @@
   #endif
 
 
-
+// Define _BV for non-Arduino platforms and for Arduino DUE
+#if ! defined(ARDUINO) || (defined(ARDUINO) && defined(__arm__))
+#define _BV(x) (1<<(x))
+#endif
   // Stuff that is normally provided by Arduino
-  #if !defined ARDUINO
+  #if !defined (ARDUINO)
 
 	#include <stdint.h>
 	#include <stdio.h>
 	#include <string.h>
 	extern HardwareSPI SPI;
+	#define _BV(x) (1<<(x))
   #else
 
     #if !defined( __AVR_ATtiny85__ ) || defined( __AVR_ATtiny84__)

examples/GettingStarted_CallResponse/GettingStarted_CallResponse.ino

@@ -61,10 +61,10 @@ void loop(void) {
   if (role == role_ping_out){                               // Radio is in ping mode
 
     byte gotByte;                                           // Initialize a variable for the incoming response
-    unsigned long time = micros();                          // Record the current microsecond count   
     
     radio.stopListening();                                  // First, stop listening so we can talk.      
     printf("Now sending %d as payload. ",counter);          // Use a simple byte counter as payload
+    unsigned long time = micros();                          // Record the current microsecond count   
                                                             
     if ( radio.write(&counter,1) ){                         // Send the counter variable to the other radio 
         if(!radio.available()){                             // If nothing in the buffer, we got an ack but it is blank