B3M38SPD seminar project - beehive monitor with LoRa reporting
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/*
/ _____) _ | |
( (____ _____ ____ _| |_ _____ ____| |__
\____ \| ___ | (_ _) ___ |/ ___) _ \
_____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
(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 <stdint.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 '?';
}
}