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

Committer:
Yann
Date:
Wed Feb 09 13:57:49 2011 +0000
Revision:
0:f30e2135b0db
V0.0.0.1

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 #ifndef HTTP_STREAM_H
Yann 0:f30e2135b0db 25 #define HTTP_STREAM_H
Yann 0:f30e2135b0db 26
Yann 0:f30e2135b0db 27 #include "../HTTPData.h"
Yann 0:f30e2135b0db 28 #include "mbed.h"
Yann 0:f30e2135b0db 29
Yann 0:f30e2135b0db 30 /** \file
Yann 0:f30e2135b0db 31 HTTP Stream data source/sink header file
Yann 0:f30e2135b0db 32 */
Yann 0:f30e2135b0db 33
Yann 0:f30e2135b0db 34 typedef uint8_t byte;
Yann 0:f30e2135b0db 35
Yann 0:f30e2135b0db 36 ///HTTP Client Streaming tool
Yann 0:f30e2135b0db 37 /**
Yann 0:f30e2135b0db 38 This class allows you to stream data from the web using a persisting HTTP connection.
Yann 0:f30e2135b0db 39 To use it properly you must use a non-blocking HTTPClient method.
Yann 0:f30e2135b0db 40 */
Yann 0:f30e2135b0db 41 class HTTPStream : public HTTPData //Streaming buf
Yann 0:f30e2135b0db 42 {
Yann 0:f30e2135b0db 43 public:
Yann 0:f30e2135b0db 44 ///Instantiates the object
Yann 0:f30e2135b0db 45 HTTPStream();
Yann 0:f30e2135b0db 46 virtual ~HTTPStream();
Yann 0:f30e2135b0db 47
Yann 0:f30e2135b0db 48 ///Starts to read into buffer
Yann 0:f30e2135b0db 49 /**
Yann 0:f30e2135b0db 50 Passes a buffer of address @a buf and size @a size to the instance.
Yann 0:f30e2135b0db 51 When it receives data it will be stored in this buffer.
Yann 0:f30e2135b0db 52 When the buffer is full it throttles the client until this function is called again.
Yann 0:f30e2135b0db 53 */
Yann 0:f30e2135b0db 54 void readNext(byte* buf, int size);
Yann 0:f30e2135b0db 55
Yann 0:f30e2135b0db 56 ///Returns whether there is data available to read
Yann 0:f30e2135b0db 57 bool readable();
Yann 0:f30e2135b0db 58
Yann 0:f30e2135b0db 59 ///Returns the actual length of the payload written in the buffer
Yann 0:f30e2135b0db 60 int readLen();
Yann 0:f30e2135b0db 61
Yann 0:f30e2135b0db 62 virtual void clear();
Yann 0:f30e2135b0db 63
Yann 0:f30e2135b0db 64 protected:
Yann 0:f30e2135b0db 65 virtual int read(char* buf, int len);
Yann 0:f30e2135b0db 66 virtual int write(const char* buf, int len);
Yann 0:f30e2135b0db 67
Yann 0:f30e2135b0db 68 virtual string getDataType(); //Internet media type for Content-Type header
Yann 0:f30e2135b0db 69 virtual void setDataType(const string& type); //Internet media type from Content-Type header
Yann 0:f30e2135b0db 70
Yann 0:f30e2135b0db 71 virtual bool getIsChunked(); //For Transfer-Encoding header
Yann 0:f30e2135b0db 72 virtual void setIsChunked(bool chunked); //From Transfer-Encoding header
Yann 0:f30e2135b0db 73
Yann 0:f30e2135b0db 74 virtual int getDataLen(); //For Content-Length header
Yann 0:f30e2135b0db 75 virtual void setDataLen(int len); //From Content-Length header, or if the transfer is chunked, next chunk length
Yann 0:f30e2135b0db 76
Yann 0:f30e2135b0db 77 private:
Yann 0:f30e2135b0db 78 byte* m_buf;
Yann 0:f30e2135b0db 79 int m_size; //Capacity
Yann 0:f30e2135b0db 80 int m_len; //Length
Yann 0:f30e2135b0db 81 };
Yann 0:f30e2135b0db 82
Yann 0:f30e2135b0db 83 #endif