A very easy to understand LoRaWAN-node code.
Dependencies: LoRaWAN-lib SX1272Lib X_NUCLEO_IKS01A1 mbed
Important parameters:
• In comissioning.h: DevEUI, AppEUI, AppKEY, DevADR, NwksKEY, AppsKEY, OTAA and public network. Frequency and channel block to use, confirmed or unconfirmed messages, app port, app data size and OTAA and Tx duty cycles.
• In LoRaMac.h: Maximum payload and MAC commands length, receive delays, max FCNT, adr ack limit, timeout and delay, max ack retries, rssi threshold and sync words.
• In LoRaMac.cpp: Maximum payload, MAC commands and FRMpayload length.
• In LoRaMac-board.h: Tx power, data rates and band settings.
NOTE: Please refer to LoRaWAN regional parameters (page 12 for US band) to know which parameters you can modify.
Diff: system/utilities.cpp
- Revision:
- 0:60ff878b27b8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/system/utilities.cpp Tue Apr 03 17:09:34 2018 +0000 @@ -0,0 +1,85 @@ +/* + / _____) _ | | +( (____ _____ ____ _| |_ _____ ____| |__ + \____ \| ___ | (_ _) ___ |/ ___) _ \ + _____) ) ____| | | || |_| ____( (___| | | | +(______/|_____)_|_|_| \__)_____)\____)_| |_| + (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 +*/ +#include <stdlib.h> +#include <stdio.h> +#include "board.h" +#include "utilities.h" + +/*! + * Redefinition of rand() and srand() standard C functions. + * These functions are redefined in order to get the same behavior across + * different compiler toolchains implementations. + */ +// Standard random functions redefinition start +#define RAND_LOCAL_MAX 2147483647L + +static uint32_t next = 1; + +int32_t rand1( void ) +{ + return ( ( next = next * 1103515245L + 12345L ) % RAND_LOCAL_MAX ); +} + +void srand1( uint32_t seed ) +{ + next = seed; +} +// Standard random functions redefinition end + +int32_t randr( int32_t min, int32_t max ) +{ + return ( int32_t )rand1( ) % ( max - min + 1 ) + min; +} + +void memcpy1( uint8_t *dst, const uint8_t *src, uint16_t size ) +{ + while( size-- ) + { + *dst++ = *src++; + } +} + +void memcpyr( uint8_t *dst, const uint8_t *src, uint16_t size ) +{ + dst = dst + ( size - 1 ); + while( size-- ) + { + *dst-- = *src++; + } +} + +void memset1( uint8_t *dst, uint8_t value, uint16_t size ) +{ + while( size-- ) + { + *dst++ = value; + } +} + +int8_t Nibble2HexChar( uint8_t a ) +{ + if( a < 10 ) + { + return '0' + a; + } + else if( a < 16 ) + { + return 'A' + ( a - 10 ); + } + else + { + return '?'; + } +}