Espotel
/
LoRaWAN_ELMO_TxRx_Template
Example Tx Rx LoRa code for Multitech Conduit. Based on Semtech stack for ELMO - ver. 4.1.0.
utils/utilities.cpp@0:c58229885f95, 2015-12-16 (annotated)
- Committer:
- mleksio
- Date:
- Wed Dec 16 14:25:16 2015 +0000
- Revision:
- 0:c58229885f95
- Child:
- 1:2be292bd43f9
first commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mleksio | 0:c58229885f95 | 1 | /* |
mleksio | 0:c58229885f95 | 2 | / _____) _ | | |
mleksio | 0:c58229885f95 | 3 | ( (____ _____ ____ _| |_ _____ ____| |__ |
mleksio | 0:c58229885f95 | 4 | \____ \| ___ | (_ _) ___ |/ ___) _ \ |
mleksio | 0:c58229885f95 | 5 | _____) ) ____| | | || |_| ____( (___| | | | |
mleksio | 0:c58229885f95 | 6 | (______/|_____)_|_|_| \__)_____)\____)_| |_| |
mleksio | 0:c58229885f95 | 7 | (C)2013 Semtech |
mleksio | 0:c58229885f95 | 8 | Description: Helper functions implementation |
mleksio | 0:c58229885f95 | 9 | License: Revised BSD License, see LICENSE.TXT file include in the project |
mleksio | 0:c58229885f95 | 10 | Maintainer: Miguel Luis and Gregory Cristian |
mleksio | 0:c58229885f95 | 11 | */ |
mleksio | 0:c58229885f95 | 12 | #include <stdlib.h> |
mleksio | 0:c58229885f95 | 13 | #include <stdio.h> |
mleksio | 0:c58229885f95 | 14 | //#include "board.h" |
mleksio | 0:c58229885f95 | 15 | #include "mbed.h" |
mleksio | 0:c58229885f95 | 16 | #include "utilities.h" |
mleksio | 0:c58229885f95 | 17 | |
mleksio | 0:c58229885f95 | 18 | /*! |
mleksio | 0:c58229885f95 | 19 | * Redefinition of rand() and srand() standard C functions. |
mleksio | 0:c58229885f95 | 20 | * These functions are redefined in order to get the same behavior across |
mleksio | 0:c58229885f95 | 21 | * different compiler toolchains implementations. |
mleksio | 0:c58229885f95 | 22 | */ |
mleksio | 0:c58229885f95 | 23 | // Standard random functions redefinition start |
mleksio | 0:c58229885f95 | 24 | #define RAND_LOCAL_MAX 2147483647L |
mleksio | 0:c58229885f95 | 25 | |
mleksio | 0:c58229885f95 | 26 | static uint32_t next = 1; |
mleksio | 0:c58229885f95 | 27 | |
mleksio | 0:c58229885f95 | 28 | int32_t rand1( void ) |
mleksio | 0:c58229885f95 | 29 | { |
mleksio | 0:c58229885f95 | 30 | return ( ( next = next * 1103515245L + 12345L ) % RAND_LOCAL_MAX ); |
mleksio | 0:c58229885f95 | 31 | } |
mleksio | 0:c58229885f95 | 32 | |
mleksio | 0:c58229885f95 | 33 | void srand1( uint32_t seed ) |
mleksio | 0:c58229885f95 | 34 | { |
mleksio | 0:c58229885f95 | 35 | next = seed; |
mleksio | 0:c58229885f95 | 36 | } |
mleksio | 0:c58229885f95 | 37 | // Standard random functions redefinition end |
mleksio | 0:c58229885f95 | 38 | |
mleksio | 0:c58229885f95 | 39 | int32_t randr( int32_t min, int32_t max ) |
mleksio | 0:c58229885f95 | 40 | { |
mleksio | 0:c58229885f95 | 41 | return ( int32_t )rand1( ) % ( max - min + 1 ) + min; |
mleksio | 0:c58229885f95 | 42 | } |
mleksio | 0:c58229885f95 | 43 | |
mleksio | 0:c58229885f95 | 44 | void memcpy1( uint8_t *dst, const uint8_t *src, uint16_t size ) |
mleksio | 0:c58229885f95 | 45 | { |
mleksio | 0:c58229885f95 | 46 | while( size-- ) |
mleksio | 0:c58229885f95 | 47 | { |
mleksio | 0:c58229885f95 | 48 | *dst++ = *src++; |
mleksio | 0:c58229885f95 | 49 | } |
mleksio | 0:c58229885f95 | 50 | } |
mleksio | 0:c58229885f95 | 51 | |
mleksio | 0:c58229885f95 | 52 | void memset1( uint8_t *dst, uint8_t value, uint16_t size ) |
mleksio | 0:c58229885f95 | 53 | { |
mleksio | 0:c58229885f95 | 54 | while( size-- ) |
mleksio | 0:c58229885f95 | 55 | { |
mleksio | 0:c58229885f95 | 56 | *dst++ = value; |
mleksio | 0:c58229885f95 | 57 | } |
mleksio | 0:c58229885f95 | 58 | } |
mleksio | 0:c58229885f95 | 59 | |
mleksio | 0:c58229885f95 | 60 | int8_t Nibble2HexChar( uint8_t a ) |
mleksio | 0:c58229885f95 | 61 | { |
mleksio | 0:c58229885f95 | 62 | if( a < 10 ) |
mleksio | 0:c58229885f95 | 63 | { |
mleksio | 0:c58229885f95 | 64 | return '0' + a; |
mleksio | 0:c58229885f95 | 65 | } |
mleksio | 0:c58229885f95 | 66 | else if( a < 16 ) |
mleksio | 0:c58229885f95 | 67 | { |
mleksio | 0:c58229885f95 | 68 | return 'A' + ( a - 10 ); |
mleksio | 0:c58229885f95 | 69 | } |
mleksio | 0:c58229885f95 | 70 | else |
mleksio | 0:c58229885f95 | 71 | { |
mleksio | 0:c58229885f95 | 72 | return '?'; |
mleksio | 0:c58229885f95 | 73 | } |
mleksio | 0:c58229885f95 | 74 | } |