Uttam Bhat / LoRaWAN-NAMote72-Application-Demo-Test

Test Fork

Dependencies:   LoRaWAN-lib SX1272Lib lib_gps lib_mma8451q lib_mpl3115a2 mbed

Fork of LoRaWAN-NAMote72-Application-Demo by Semtech

system/utilities.cpp@12:504203733f11, 2016-08-05 (annotated)

Committer:
ubhat
Date:
Fri Aug 05 20:45:12 2016 +0000
Revision:
12:504203733f11
Parent:
0:69f2e28d12c1 
Revert to Revision 9

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ubhat 0:69f2e28d12c1 1 /*
ubhat 0:69f2e28d12c1 2 / _____) _ | |
ubhat 0:69f2e28d12c1 3 ( (____ _____ ____ _| |_ _____ ____| |__
ubhat 0:69f2e28d12c1 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
ubhat 0:69f2e28d12c1 5 _____) ) ____| | | || |_| ____( (___| | | |
ubhat 0:69f2e28d12c1 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
ubhat 0:69f2e28d12c1 7 (C)2013 Semtech
ubhat 0:69f2e28d12c1 8
ubhat 0:69f2e28d12c1 9 Description: Helper functions implementation
ubhat 0:69f2e28d12c1 10
ubhat 0:69f2e28d12c1 11 License: Revised BSD License, see LICENSE.TXT file include in the project
ubhat 0:69f2e28d12c1 12
ubhat 0:69f2e28d12c1 13 Maintainer: Miguel Luis and Gregory Cristian
ubhat 0:69f2e28d12c1 14 */
ubhat 0:69f2e28d12c1 15 #include <stdlib.h>
ubhat 0:69f2e28d12c1 16 #include <stdio.h>
ubhat 0:69f2e28d12c1 17 #include "board.h"
ubhat 0:69f2e28d12c1 18 #include "utilities.h"
ubhat 0:69f2e28d12c1 19
ubhat 0:69f2e28d12c1 20 /*!
ubhat 0:69f2e28d12c1 21 * Redefinition of rand() and srand() standard C functions.
ubhat 0:69f2e28d12c1 22 * These functions are redefined in order to get the same behavior across
ubhat 0:69f2e28d12c1 23 * different compiler toolchains implementations.
ubhat 0:69f2e28d12c1 24 */
ubhat 0:69f2e28d12c1 25 // Standard random functions redefinition start
ubhat 0:69f2e28d12c1 26 #define RAND_LOCAL_MAX 2147483647L
ubhat 0:69f2e28d12c1 27
ubhat 0:69f2e28d12c1 28 static uint32_t next = 1;
ubhat 0:69f2e28d12c1 29
ubhat 0:69f2e28d12c1 30 int32_t rand1( void )
ubhat 0:69f2e28d12c1 31 {
ubhat 0:69f2e28d12c1 32 return ( ( next = next * 1103515245L + 12345L ) % RAND_LOCAL_MAX );
ubhat 0:69f2e28d12c1 33 }
ubhat 0:69f2e28d12c1 34
ubhat 0:69f2e28d12c1 35 void srand1( uint32_t seed )
ubhat 0:69f2e28d12c1 36 {
ubhat 0:69f2e28d12c1 37 next = seed;
ubhat 0:69f2e28d12c1 38 }
ubhat 0:69f2e28d12c1 39 // Standard random functions redefinition end
ubhat 0:69f2e28d12c1 40
ubhat 0:69f2e28d12c1 41 int32_t randr( int32_t min, int32_t max )
ubhat 0:69f2e28d12c1 42 {
ubhat 0:69f2e28d12c1 43 return ( int32_t )rand1( ) % ( max - min + 1 ) + min;
ubhat 0:69f2e28d12c1 44 }
ubhat 0:69f2e28d12c1 45
ubhat 0:69f2e28d12c1 46 void memcpy1( uint8_t *dst, const uint8_t *src, uint16_t size )
ubhat 0:69f2e28d12c1 47 {
ubhat 0:69f2e28d12c1 48 while( size-- )
ubhat 0:69f2e28d12c1 49 {
ubhat 0:69f2e28d12c1 50 *dst++ = *src++;
ubhat 0:69f2e28d12c1 51 }
ubhat 0:69f2e28d12c1 52 }
ubhat 0:69f2e28d12c1 53
ubhat 0:69f2e28d12c1 54 void memcpyr( uint8_t *dst, const uint8_t *src, uint16_t size )
ubhat 0:69f2e28d12c1 55 {
ubhat 0:69f2e28d12c1 56 dst = dst + ( size - 1 );
ubhat 0:69f2e28d12c1 57 while( size-- )
ubhat 0:69f2e28d12c1 58 {
ubhat 0:69f2e28d12c1 59 *dst-- = *src++;
ubhat 0:69f2e28d12c1 60 }
ubhat 0:69f2e28d12c1 61 }
ubhat 0:69f2e28d12c1 62
ubhat 0:69f2e28d12c1 63 void memset1( uint8_t *dst, uint8_t value, uint16_t size )
ubhat 0:69f2e28d12c1 64 {
ubhat 0:69f2e28d12c1 65 while( size-- )
ubhat 0:69f2e28d12c1 66 {
ubhat 0:69f2e28d12c1 67 *dst++ = value;
ubhat 0:69f2e28d12c1 68 }
ubhat 0:69f2e28d12c1 69 }
ubhat 0:69f2e28d12c1 70
ubhat 0:69f2e28d12c1 71 int8_t Nibble2HexChar( uint8_t a )
ubhat 0:69f2e28d12c1 72 {
ubhat 0:69f2e28d12c1 73 if( a < 10 )
ubhat 0:69f2e28d12c1 74 {
ubhat 0:69f2e28d12c1 75 return '0' + a;
ubhat 0:69f2e28d12c1 76 }
ubhat 0:69f2e28d12c1 77 else if( a < 16 )
ubhat 0:69f2e28d12c1 78 {
ubhat 0:69f2e28d12c1 79 return 'A' + ( a - 10 );
ubhat 0:69f2e28d12c1 80 }
ubhat 0:69f2e28d12c1 81 else
ubhat 0:69f2e28d12c1 82 {
ubhat 0:69f2e28d12c1 83 return '?';
ubhat 0:69f2e28d12c1 84 }
ubhat 0:69f2e28d12c1 85 }