switch to setup for Arduino Boards Manager

digistump-sam/libraries/RF24/librf24-rpi/librf24-bcm/examples/scanner.cpp

@@ -0,0 +1,146 @@
+/*
+ Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ version 2 as published by the Free Software Foundation.
+ 
+ 
+ 03/17/2013 : Charles-Henri Hallard (http://hallard.me)
+              Modified to use with Arduipi board http://hallard.me/arduipi
+						  Changed to use modified bcm2835 and RF24 library 
+
+ */
+
+/**
+ * Channel scanner
+ *
+ * Example to detect interference on the various channels available.
+ * This is a good diagnostic tool to check whether you're picking a
+ * good channel for your application.
+ *
+ * Inspired by cpixip.
+ * See http://arduino.cc/forum/index.php/topic,54795.0.html
+ */
+
+#include <cstdlib>
+#include <iostream>
+#include "./RF24.h"
+
+using namespace std;
+
+//
+// Hardware configuration
+//
+
+// CE Pin, CSN Pin, SPI Speed
+
+// Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
+//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ);
+
+// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
+//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ); 
+
+// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
+RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ);  
+
+
+//
+// Channel info
+//
+//const uint8_t num_channels = 128;
+const uint8_t num_channels = 120;
+uint8_t values[num_channels];
+
+
+const int num_reps = 100;
+int reset_array=0;
+
+
+int main(int argc, char** argv)
+{
+  //
+  // Print preamble
+  //
+
+  //Serial.begin(57600);
+  //printf_begin();
+  printf("RF24/examples/scanner/\n");
+
+  //
+  // Setup and configure rf radio
+  //
+  radio.begin();
+	
+  radio.setAutoAck(false);
+
+  // Get into standby mode
+  radio.startListening();
+  radio.stopListening();
+
+  radio.printDetails();
+
+  // Print out header, high then low digit
+  int i = 0;
+	
+  while ( i < num_channels )
+  {
+    printf("%x",i>>4);
+    ++i;
+  }
+  printf("\n");
+	
+  i = 0;
+  while ( i < num_channels )
+  {
+    printf("%x",i&0xf);
+    ++i;
+  }
+  printf("\n");       
+	
+	// forever loop
+  while(1)
+	{
+		if ( reset_array == 1 )
+		{	
+			// Clear measurement values
+			memset(values,0,sizeof(values));
+			printf("\n");
+		}
+
+		// Scan all channels num_reps times
+		int i = num_channels;
+		while (i--)
+		{
+			// Select this channel
+			radio.setChannel(i);
+
+			// Listen for a little
+			radio.startListening();
+			delayMicroseconds(128);
+			radio.stopListening();
+
+			// Did we get a carrier?
+			if ( radio.testCarrier() )
+					++values[i];
+			if ( values[i] == 0xf ) 
+			{
+				reset_array = 2;
+			}
+		}
+
+		// Print out channel measurements, clamped to a single hex digit
+		i = 0;
+		while ( i < num_channels )
+		{
+			printf("%x",min(0xf,(values[i]&0xf)));
+			++i;
+		}
+		
+		printf("\n");
+	}
+	
+  return 0;
+}
+
+// vim:ai:cin:sts=2 sw=2 ft=cpp