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 SERIALBUF_H
Yann 0:f30e2135b0db 25 #define SERIALBUF_H
Yann 0:f30e2135b0db 26
Yann 0:f30e2135b0db 27 #include "mbed.h"
Yann 0:f30e2135b0db 28 #include "netCfg.h"
Yann 0:f30e2135b0db 29 #if NET_USB_SERIAL
Yann 0:f30e2135b0db 30 #include "drv/serial/usb/UsbSerial.h"
Yann 0:f30e2135b0db 31 #endif
Yann 0:f30e2135b0db 32
Yann 0:f30e2135b0db 33 class SerialCircularBuf
Yann 0:f30e2135b0db 34 {
Yann 0:f30e2135b0db 35 public:
Yann 0:f30e2135b0db 36 SerialCircularBuf(int len);
Yann 0:f30e2135b0db 37 ~SerialCircularBuf();
Yann 0:f30e2135b0db 38
Yann 0:f30e2135b0db 39 int room();
Yann 0:f30e2135b0db 40 int len();
Yann 0:f30e2135b0db 41
Yann 0:f30e2135b0db 42 void write(char c);
Yann 0:f30e2135b0db 43 char read();
Yann 0:f30e2135b0db 44
Yann 0:f30e2135b0db 45 void setReadMode(bool readMode); //If true, keeps chars in buf when read, false by default
Yann 0:f30e2135b0db 46 void flushRead(); //Delete chars that have been read & return chars len (only useful with readMode = true)
Yann 0:f30e2135b0db 47 void resetRead(); //Go back to initial read position & return chars len (only useful with readMode = true)
Yann 0:f30e2135b0db 48
Yann 0:f30e2135b0db 49 private:
Yann 0:f30e2135b0db 50 char* m_buf;
Yann 0:f30e2135b0db 51 int m_len;
Yann 0:f30e2135b0db 52
Yann 0:f30e2135b0db 53 volatile char* m_pReadStart;
Yann 0:f30e2135b0db 54 volatile char* m_pRead;
Yann 0:f30e2135b0db 55 volatile char* m_pWrite;
Yann 0:f30e2135b0db 56 volatile bool m_readMode;
Yann 0:f30e2135b0db 57 };
Yann 0:f30e2135b0db 58
Yann 0:f30e2135b0db 59 class SerialBuf
Yann 0:f30e2135b0db 60 {
Yann 0:f30e2135b0db 61 public:
Yann 0:f30e2135b0db 62 SerialBuf(int len); //Buffer length
Yann 0:f30e2135b0db 63 virtual ~SerialBuf();
Yann 0:f30e2135b0db 64
Yann 0:f30e2135b0db 65 void attach(Serial* pSerial);
Yann 0:f30e2135b0db 66 void detach();
Yann 0:f30e2135b0db 67
Yann 0:f30e2135b0db 68 #if NET_USB_SERIAL
Yann 0:f30e2135b0db 69 void attach(UsbSerial* pUsbSerial);
Yann 0:f30e2135b0db 70 #endif
Yann 0:f30e2135b0db 71
Yann 0:f30e2135b0db 72 //Really useful for debugging
Yann 0:f30e2135b0db 73 char getc();
Yann 0:f30e2135b0db 74 void putc(char c);
Yann 0:f30e2135b0db 75 bool readable();
Yann 0:f30e2135b0db 76 bool writeable();
Yann 0:f30e2135b0db 77 /*protected:*/
Yann 0:f30e2135b0db 78 void setReadMode(bool readMode); //If true, keeps chars in buf when read, false by default
Yann 0:f30e2135b0db 79 void flushRead(); //Delete chars that have been read & return chars len (only useful with readMode = true)
Yann 0:f30e2135b0db 80 void resetRead(); //Go back to initial read position & return chars len (only useful with readMode = true)
Yann 0:f30e2135b0db 81
Yann 0:f30e2135b0db 82 private:
Yann 0:f30e2135b0db 83 void onRxInterrupt(); //Callback from m_pSerial
Yann 0:f30e2135b0db 84 void onTxInterrupt(); //Callback from m_pSerial
Yann 0:f30e2135b0db 85
Yann 0:f30e2135b0db 86 SerialCircularBuf m_rxBuf;
Yann 0:f30e2135b0db 87 SerialCircularBuf m_txBuf;
Yann 0:f30e2135b0db 88
Yann 0:f30e2135b0db 89 Serial* m_pSerial; //Not owned
Yann 0:f30e2135b0db 90
Yann 0:f30e2135b0db 91 #if NET_USB_SERIAL
Yann 0:f30e2135b0db 92 //USB Serial Impl
Yann 0:f30e2135b0db 93 UsbSerial* m_pUsbSerial; //Not owned
Yann 0:f30e2135b0db 94 //Ticker m_usbTick;
Yann 0:f30e2135b0db 95 #endif
Yann 0:f30e2135b0db 96 };
Yann 0:f30e2135b0db 97
Yann 0:f30e2135b0db 98
Yann 0:f30e2135b0db 99 #endif