Fahad Mirza / Mbed 2 deprecated Nucleo_HXC900

A demo application for HXC900 LoRaWAN module using Nucleo-L053R8.

Dependencies:   mbed

Utilities/utilities.c@39:cb0e5a76ab15, 2019-01-24 (annotated)

Committer:
fahadmirza
Date:
Thu Jan 24 23:45:12 2019 +0000
Revision:
39:cb0e5a76ab15
Parent:
32:2d0678039a09 
Doxygen style header

Who changed what in which revision?

UserRevisionLine numberNew contents of line
fahadmirza 0:a0c5877bd360 1 /*
fahadmirza 0:a0c5877bd360 2 / _____) _ | |
fahadmirza 0:a0c5877bd360 3 ( (____ _____ ____ _| |_ _____ ____| |__
fahadmirza 0:a0c5877bd360 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
fahadmirza 0:a0c5877bd360 5 _____) ) ____| | | || |_| ____( (___| | | |
fahadmirza 0:a0c5877bd360 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
fahadmirza 0:a0c5877bd360 7 (C)2013 Semtech
fahadmirza 0:a0c5877bd360 8
fahadmirza 0:a0c5877bd360 9 _ _ _____ _______
fahadmirza 0:a0c5877bd360 10 | | | | |_ _| |__ __|
fahadmirza 0:a0c5877bd360 11 | |__| | __ ___ __ | | ___ | |
fahadmirza 0:a0c5877bd360 12 | __ |/ _` \ \/ / | | / _ \| |
fahadmirza 0:a0c5877bd360 13 | | | | (_| |> < _| || (_) | |
fahadmirza 0:a0c5877bd360 14 |_| |_|\__,_/_/\_\_____\___/|_|
fahadmirza 0:a0c5877bd360 15 (C)2017 HaxIoT
fahadmirza 0:a0c5877bd360 16
fahadmirza 0:a0c5877bd360 17 Description: Helper functions implementation
fahadmirza 0:a0c5877bd360 18
fahadmirza 0:a0c5877bd360 19 License: Revised BSD License, see LICENSE.TXT file include in the project
fahadmirza 0:a0c5877bd360 20
fahadmirza 0:a0c5877bd360 21 Maintainer: Miguel Luis and Gregory Cristian
fahadmirza 0:a0c5877bd360 22 Fahad Mirza (Haxiot)
fahadmirza 0:a0c5877bd360 23 */
fahadmirza 0:a0c5877bd360 24 #include <stdlib.h>
fahadmirza 0:a0c5877bd360 25 #include <stdio.h>
fahadmirza 0:a0c5877bd360 26 #include <stdint.h>
fahadmirza 0:a0c5877bd360 27 #include "tiny_sscanf.h"
fahadmirza 0:a0c5877bd360 28 #include "utilities.h"
fahadmirza 0:a0c5877bd360 29
fahadmirza 0:a0c5877bd360 30 /*!
fahadmirza 0:a0c5877bd360 31 * Redefinition of rand() and srand() standard C functions.
fahadmirza 0:a0c5877bd360 32 * These functions are redefined in order to get the same behavior across
fahadmirza 0:a0c5877bd360 33 * different compiler toolchains implementations.
fahadmirza 0:a0c5877bd360 34 */
fahadmirza 0:a0c5877bd360 35 // Standard random functions redefinition start
fahadmirza 0:a0c5877bd360 36 #define RAND_LOCAL_MAX 2147483647L
fahadmirza 0:a0c5877bd360 37
fahadmirza 0:a0c5877bd360 38 static uint32_t next = 1;
fahadmirza 0:a0c5877bd360 39
fahadmirza 0:a0c5877bd360 40 int32_t rand1( void )
fahadmirza 0:a0c5877bd360 41 {
fahadmirza 0:a0c5877bd360 42 return ( ( next = next * 1103515245L + 12345L ) % RAND_LOCAL_MAX );
fahadmirza 0:a0c5877bd360 43 }
fahadmirza 0:a0c5877bd360 44
fahadmirza 0:a0c5877bd360 45 void srand1( uint32_t seed )
fahadmirza 0:a0c5877bd360 46 {
fahadmirza 0:a0c5877bd360 47 next = seed;
fahadmirza 0:a0c5877bd360 48 }
fahadmirza 0:a0c5877bd360 49 // Standard random functions redefinition end
fahadmirza 0:a0c5877bd360 50
fahadmirza 0:a0c5877bd360 51 int32_t randr( int32_t min, int32_t max )
fahadmirza 0:a0c5877bd360 52 {
fahadmirza 0:a0c5877bd360 53 return ( int32_t )rand1( ) % ( max - min + 1 ) + min;
fahadmirza 0:a0c5877bd360 54 }
fahadmirza 0:a0c5877bd360 55
fahadmirza 0:a0c5877bd360 56 void memcpy1( uint8_t *dst, const uint8_t *src, uint16_t size )
fahadmirza 0:a0c5877bd360 57 {
fahadmirza 0:a0c5877bd360 58 while( size-- )
fahadmirza 0:a0c5877bd360 59 {
fahadmirza 0:a0c5877bd360 60 *dst++ = *src++;
fahadmirza 0:a0c5877bd360 61 }
fahadmirza 0:a0c5877bd360 62 }
fahadmirza 0:a0c5877bd360 63
fahadmirza 0:a0c5877bd360 64 void memcpyr( uint8_t *dst, const uint8_t *src, uint16_t size )
fahadmirza 0:a0c5877bd360 65 {
fahadmirza 0:a0c5877bd360 66 dst = dst + ( size - 1 );
fahadmirza 0:a0c5877bd360 67 while( size-- )
fahadmirza 0:a0c5877bd360 68 {
fahadmirza 0:a0c5877bd360 69 *dst-- = *src++;
fahadmirza 0:a0c5877bd360 70 }
fahadmirza 0:a0c5877bd360 71 }
fahadmirza 0:a0c5877bd360 72
fahadmirza 0:a0c5877bd360 73 void memset1( uint8_t *dst, uint8_t value, uint16_t size )
fahadmirza 0:a0c5877bd360 74 {
fahadmirza 0:a0c5877bd360 75 while( size-- )
fahadmirza 0:a0c5877bd360 76 {
fahadmirza 0:a0c5877bd360 77 *dst++ = value;
fahadmirza 0:a0c5877bd360 78 }
fahadmirza 0:a0c5877bd360 79 }
fahadmirza 0:a0c5877bd360 80
fahadmirza 0:a0c5877bd360 81 int8_t Nibble2HexChar( uint8_t a )
fahadmirza 0:a0c5877bd360 82 {
fahadmirza 0:a0c5877bd360 83 if( a < 10 )
fahadmirza 0:a0c5877bd360 84 {
fahadmirza 0:a0c5877bd360 85 return '0' + a;
fahadmirza 0:a0c5877bd360 86 }
fahadmirza 0:a0c5877bd360 87 else if( a < 16 )
fahadmirza 0:a0c5877bd360 88 {
fahadmirza 0:a0c5877bd360 89 return 'A' + ( a - 10 );
fahadmirza 0:a0c5877bd360 90 }
fahadmirza 0:a0c5877bd360 91 else
fahadmirza 0:a0c5877bd360 92 {
fahadmirza 0:a0c5877bd360 93 return '?';
fahadmirza 0:a0c5877bd360 94 }
fahadmirza 0:a0c5877bd360 95 }
fahadmirza 0:a0c5877bd360 96
fahadmirza 32:2d0678039a09 97 uint8_t stringHexToByteArray(const char *hexString, uint8_t *buffer, uint8_t bufSize)
fahadmirza 0:a0c5877bd360 98 {
fahadmirza 0:a0c5877bd360 99 uint8_t count = 0;
fahadmirza 0:a0c5877bd360 100 char hex[3];
fahadmirza 0:a0c5877bd360 101 hex[2] = '\0';
fahadmirza 0:a0c5877bd360 102
fahadmirza 0:a0c5877bd360 103 while( (*hexString != '\0') && (*(hexString + 1) != '\0') )
fahadmirza 0:a0c5877bd360 104 {
fahadmirza 0:a0c5877bd360 105 // Separate two digits(i.e 1 HexByte) from the hex string
fahadmirza 0:a0c5877bd360 106 hex[0] = *hexString;
fahadmirza 0:a0c5877bd360 107 hex[1] = *(hexString + 1);
fahadmirza 0:a0c5877bd360 108
fahadmirza 0:a0c5877bd360 109 if((tiny_sscanf(hex, "%hhx",&buffer[count]) != 1))
fahadmirza 0:a0c5877bd360 110 {
fahadmirza 0:a0c5877bd360 111 // hex doesn't have valid numbers
fahadmirza 0:a0c5877bd360 112 break;
fahadmirza 0:a0c5877bd360 113 }
fahadmirza 0:a0c5877bd360 114 count++;
fahadmirza 32:2d0678039a09 115 if (count == (bufSize - 1))
fahadmirza 0:a0c5877bd360 116 {
fahadmirza 0:a0c5877bd360 117 // We are out of space
fahadmirza 0:a0c5877bd360 118 break;
fahadmirza 0:a0c5877bd360 119 }
fahadmirza 0:a0c5877bd360 120 // Advance string hex pointer by two
fahadmirza 0:a0c5877bd360 121 hexString += 2;
fahadmirza 0:a0c5877bd360 122 }
fahadmirza 6:1d09b7960d57 123
fahadmirza 32:2d0678039a09 124 buffer[count] = '\0';
fahadmirza 6:1d09b7960d57 125
fahadmirza 0:a0c5877bd360 126 return count;
fahadmirza 0:a0c5877bd360 127 }
fahadmirza 0:a0c5877bd360 128