Semtech / LoRaWAN-lib

LoRaWAN MAC layer implementation

Dependents:   LoRaWAN-demo-72_tjm LoRaWAN-demo-72_jlc LoRaWAN-demo-elmo frdm_LoRa_Connect_Woodstream_Demo_tjm ... more

LoRAWAN-lib is a port of the GitHub LoRaMac-node LoRaWAN MAC layer implementation.

This library depends on the SX1276Lib or SX1272Lib radio drivers depending on the used mbed component shield.

This library depends also on some cryptographic helper functions as well as helper functions for the timers management. These can be found on the example projects under the system directory.

The example projects are:

  1. LoRaWAN-demo-72
  2. LoRaWAN-demo-76
  3. LoRaWAN-demo-NAMote72

The LoRaWAN specification specifies different ISM bands operating parameters. These are all implemented under the LoRaMac-board.h file.

In order to select which band to use, please change line 24 of board.h file provided on the examples projects as follows:


EU868

board.h

#define USE_BAND_868


US915

board.h

#define USE_BAND_915


US915 - Hybrid

board.h

#define USE_BAND_915_HYBRID


CN780

board.h

#define USE_BAND_780


EU433

board.h

#define USE_BAND_433

Diff: system/utilities.h

Revision:
0:91d1a7783bb9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/system/utilities.h	Tue Oct 20 13:21:26 2015 +0000
@@ -0,0 +1,83 @@
+/*
+ / _____)             _              | |
+( (____  _____ ____ _| |_ _____  ____| |__
+ \____ \| ___ |    (_   _) ___ |/ ___)  _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+    (C)2013 Semtech
+
+Description: Helper functions implementation
+
+License: Revised BSD License, see LICENSE.TXT file include in the project
+
+Maintainer: Miguel Luis and Gregory Cristian
+*/
+#ifndef __UTILITIES_H__
+#define __UTILITIES_H__
+
+/*!
+ * \brief Returns the minimum value betwen a and b
+ *
+ * \param [IN] a 1st value
+ * \param [IN] b 2nd value
+ * \retval minValue Minimum value
+ */
+#define MIN( a, b ) ( ( ( a ) < ( b ) ) ? ( a ) : ( b ) )
+
+/*!
+ * \brief Returns the maximum value betwen a and b
+ *
+ * \param [IN] a 1st value
+ * \param [IN] b 2nd value
+ * \retval maxValue Maximum value
+ */
+#define MAX( a, b ) ( ( ( a ) > ( b ) ) ? ( a ) : ( b ) )
+
+/*!
+ * \brief Returns 2 raised to the power of n
+ *
+ * \param [IN] n power value
+ * \retval result of raising 2 to the power n
+ */
+#define POW2( n ) ( 1 << n )
+
+/*!
+ * \brief Computes a random number between min and max
+ *
+ * \param [IN] min range minimum value
+ * \param [IN] max range maximum value
+ * \retval random random value in range min..max
+ */
+int32_t randr( int32_t min, int32_t max );
+
+/*!
+ * \brief Copies size elements of src array to dst array
+ * 
+ * \remark STM32 Standard memcpy function only works on pointers that are aligned
+ *
+ * \param [OUT] dst  Destination array
+ * \param [IN]  src  Source array
+ * \param [IN]  size Number of bytes to be copied
+ */
+void memcpy1( uint8_t *dst, const uint8_t *src, uint16_t size );
+
+/*!
+ * \brief Set size elements of dst array with value 
+ * 
+ * \remark STM32 Standard memset function only works on pointers that are aligned
+ *
+ * \param [OUT] dst   Destination array
+ * \param [IN]  value Default value
+ * \param [IN]  size  Number of bytes to be copied
+ */
+void memset1( uint8_t *dst, uint8_t value, uint16_t size );
+
+/*!
+ * \brief Converts a nibble to an hexadecimal character
+ * 
+ * \param [IN] a   Nibble to be converted
+ * \retval hexChar Converted hexadecimal character
+ */
+int8_t Nibble2HexChar( uint8_t a );
+
+#endif // __UTILITIES_H__