00001 /* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved. 00002 * 00003 * The information contained herein is confidential property of Nordic 00004 * Semiconductor ASA.Terms and conditions of usage are described in detail 00005 * in NORDIC SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. 00006 * 00007 * Licensees are granted free, non-transferable use of the information. NO 00008 * WARRENTY of ANY KIND is provided. This heading must NOT be removed from 00009 * the file. 00010 * 00011 * $LastChangedRevision: 133 $ 00012 */ 00013 00018 #include <stdint.h> 00019 #include <stdbool.h> 00020 #include "nrf24lu1p.h" 00021 00022 void lib_crypt_generate_ls5b(uint8_t * dest_buf) 00023 { 00024 uint8_t i; 00025 bool wrap = true; 00026 static xdata uint8_t ls5b[5] = {0, 0, 0, 0, 0}; 00027 00028 //Increment LS5B, and write back the new LS5B. 00029 for(i=0;i<5;i++) 00030 { 00031 if(wrap) //Check if we need to increment position i. 00032 { 00033 ls5b[i]++; 00034 if(ls5b[i] != 0x00) wrap = false; 00035 } 00036 00037 //Write out LS5B 00038 dest_buf[i] = ls5b[i]; 00039 } 00040 }
1.7.2