Yann Garcia / Mbed 2 deprecated DS130x_I2CApp

This short program illustrates how to use the DS130x_I2C library. My objective is to share the same RTC with Microchip 18F MCU.

Dependencies:   mbed DebugLibrary

NetServices/services/http/util/base64.cpp@1:995212d326ca, 2011-02-11 (annotated)

Committer:
Yann
Date:
Fri Feb 11 10:17:20 2011 +0000
Revision:
1:995212d326ca
Parent:
0:f30e2135b0db 
V0.0.0.2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Yann 0:f30e2135b0db 1
Yann 0:f30e2135b0db 2 /*
Yann 0:f30e2135b0db 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
Yann 0:f30e2135b0db 4
Yann 0:f30e2135b0db 5 Permission is hereby granted, free of charge, to any person obtaining a copy
Yann 0:f30e2135b0db 6 of this software and associated documentation files (the "Software"), to deal
Yann 0:f30e2135b0db 7 in the Software without restriction, including without limitation the rights
Yann 0:f30e2135b0db 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Yann 0:f30e2135b0db 9 copies of the Software, and to permit persons to whom the Software is
Yann 0:f30e2135b0db 10 furnished to do so, subject to the following conditions:
Yann 0:f30e2135b0db 11
Yann 0:f30e2135b0db 12 The above copyright notice and this permission notice shall be included in
Yann 0:f30e2135b0db 13 all copies or substantial portions of the Software.
Yann 0:f30e2135b0db 14
Yann 0:f30e2135b0db 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Yann 0:f30e2135b0db 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Yann 0:f30e2135b0db 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Yann 0:f30e2135b0db 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Yann 0:f30e2135b0db 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Yann 0:f30e2135b0db 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Yann 0:f30e2135b0db 21 THE SOFTWARE.
Yann 0:f30e2135b0db 22 */
Yann 0:f30e2135b0db 23
Yann 0:f30e2135b0db 24 #include "base64.h"
Yann 0:f30e2135b0db 25 //Originaly from Rolf's iputil.c
Yann 0:f30e2135b0db 26
Yann 0:f30e2135b0db 27 #ifdef __cplusplus
Yann 0:f30e2135b0db 28 extern "C" {
Yann 0:f30e2135b0db 29 #endif
Yann 0:f30e2135b0db 30
Yann 0:f30e2135b0db 31 #include <string.h>
Yann 0:f30e2135b0db 32
Yann 0:f30e2135b0db 33 unsigned int base64enc_len(const char *str) {
Yann 0:f30e2135b0db 34 return (((strlen(str)-1)/3)+1)<<2;
Yann 0:f30e2135b0db 35 }
Yann 0:f30e2135b0db 36
Yann 0:f30e2135b0db 37 void base64enc(const char *input, unsigned int length, char *output) {
Yann 0:f30e2135b0db 38 static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
Yann 0:f30e2135b0db 39 unsigned int c, c1, c2, c3;
Yann 0:f30e2135b0db 40 for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {
Yann 0:f30e2135b0db 41 c1 = ((((unsigned char)*((unsigned char *)&input[i]))));
Yann 0:f30e2135b0db 42 c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;
Yann 0:f30e2135b0db 43 c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;
Yann 0:f30e2135b0db 44
Yann 0:f30e2135b0db 45 c = ((c1 & 0xFC) >> 2);
Yann 0:f30e2135b0db 46 output[j+0] = base64[c];
Yann 0:f30e2135b0db 47 c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);
Yann 0:f30e2135b0db 48 output[j+1] = base64[c];
Yann 0:f30e2135b0db 49 c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);
Yann 0:f30e2135b0db 50 output[j+2] = (length>i+1)?base64[c]:'=';
Yann 0:f30e2135b0db 51 c = (c3 & 0x3F);
Yann 0:f30e2135b0db 52 output[j+3] = (length>i+2)?base64[c]:'=';
Yann 0:f30e2135b0db 53 }
Yann 0:f30e2135b0db 54 output[(((length-1)/3)+1)<<2] = '\0';
Yann 0:f30e2135b0db 55 }
Yann 0:f30e2135b0db 56
Yann 0:f30e2135b0db 57 #ifdef __cplusplus
Yann 0:f30e2135b0db 58 }
Yann 0:f30e2135b0db 59 #endif
Yann 0:f30e2135b0db 60