Read NTP time from Ethernet and drive six 7-segment LEDs using a MAX7221 to show time, date, month, week, year etc....

Dependencies:   NTPClient_NetServices mbed

Committer:
cheungderek
Date:
Wed Jun 22 01:31:47 2011 +0000
Revision:
0:e083abcfe7a8
First release.
Just some testing but working code to read NTP time and drive 6 LEDs to display time, date, month, year etc...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cheungderek 0:e083abcfe7a8 1
cheungderek 0:e083abcfe7a8 2 /*
cheungderek 0:e083abcfe7a8 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
cheungderek 0:e083abcfe7a8 4
cheungderek 0:e083abcfe7a8 5 Permission is hereby granted, free of charge, to any person obtaining a copy
cheungderek 0:e083abcfe7a8 6 of this software and associated documentation files (the "Software"), to deal
cheungderek 0:e083abcfe7a8 7 in the Software without restriction, including without limitation the rights
cheungderek 0:e083abcfe7a8 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
cheungderek 0:e083abcfe7a8 9 copies of the Software, and to permit persons to whom the Software is
cheungderek 0:e083abcfe7a8 10 furnished to do so, subject to the following conditions:
cheungderek 0:e083abcfe7a8 11
cheungderek 0:e083abcfe7a8 12 The above copyright notice and this permission notice shall be included in
cheungderek 0:e083abcfe7a8 13 all copies or substantial portions of the Software.
cheungderek 0:e083abcfe7a8 14
cheungderek 0:e083abcfe7a8 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
cheungderek 0:e083abcfe7a8 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
cheungderek 0:e083abcfe7a8 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
cheungderek 0:e083abcfe7a8 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
cheungderek 0:e083abcfe7a8 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
cheungderek 0:e083abcfe7a8 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
cheungderek 0:e083abcfe7a8 21 THE SOFTWARE.
cheungderek 0:e083abcfe7a8 22 */
cheungderek 0:e083abcfe7a8 23
cheungderek 0:e083abcfe7a8 24 /** \file
cheungderek 0:e083abcfe7a8 25 UDP Socket header file
cheungderek 0:e083abcfe7a8 26 */
cheungderek 0:e083abcfe7a8 27
cheungderek 0:e083abcfe7a8 28 #ifndef UDPSOCKET_H
cheungderek 0:e083abcfe7a8 29 #define UDPSOCKET_H
cheungderek 0:e083abcfe7a8 30
cheungderek 0:e083abcfe7a8 31 #include "core/net.h"
cheungderek 0:e083abcfe7a8 32 #include "core/host.h"
cheungderek 0:e083abcfe7a8 33 //Essentially it is a safe interface to NetUdpSocket
cheungderek 0:e083abcfe7a8 34
cheungderek 0:e083abcfe7a8 35 ///UDP Socket error codes
cheungderek 0:e083abcfe7a8 36 enum UDPSocketErr
cheungderek 0:e083abcfe7a8 37 {
cheungderek 0:e083abcfe7a8 38 __UDPSOCKET_MIN = -0xFFFF,
cheungderek 0:e083abcfe7a8 39 UDPSOCKET_SETUP, ///<UDPSocket not properly configured
cheungderek 0:e083abcfe7a8 40 UDPSOCKET_IF, ///<Interface has problems, does not exist or is not initialized
cheungderek 0:e083abcfe7a8 41 UDPSOCKET_MEM, ///<Not enough mem
cheungderek 0:e083abcfe7a8 42 UDPSOCKET_INUSE, ///<Interface / Port is in use
cheungderek 0:e083abcfe7a8 43 //...
cheungderek 0:e083abcfe7a8 44 UDPSOCKET_OK = 0 ///<Success
cheungderek 0:e083abcfe7a8 45 };
cheungderek 0:e083abcfe7a8 46
cheungderek 0:e083abcfe7a8 47 ///UDP Socket Event(s)
cheungderek 0:e083abcfe7a8 48 enum UDPSocketEvent //Only one event here for now, but keeps that model in case we need to implement some others
cheungderek 0:e083abcfe7a8 49 {
cheungderek 0:e083abcfe7a8 50 UDPSOCKET_READABLE, ///<Data in buf
cheungderek 0:e083abcfe7a8 51 };
cheungderek 0:e083abcfe7a8 52
cheungderek 0:e083abcfe7a8 53 class NetUdpSocket;
cheungderek 0:e083abcfe7a8 54 enum NetUdpSocketEvent;
cheungderek 0:e083abcfe7a8 55
cheungderek 0:e083abcfe7a8 56 ///This is a simple UDP Socket class
cheungderek 0:e083abcfe7a8 57 /**
cheungderek 0:e083abcfe7a8 58 This class exposes an API to deal with UDP Sockets
cheungderek 0:e083abcfe7a8 59 */
cheungderek 0:e083abcfe7a8 60 class UDPSocket
cheungderek 0:e083abcfe7a8 61 {
cheungderek 0:e083abcfe7a8 62 public:
cheungderek 0:e083abcfe7a8 63 ///Creates a new socket
cheungderek 0:e083abcfe7a8 64 UDPSocket();
cheungderek 0:e083abcfe7a8 65
cheungderek 0:e083abcfe7a8 66 ///Closes and destroys socket
cheungderek 0:e083abcfe7a8 67 ~UDPSocket(); //close()
cheungderek 0:e083abcfe7a8 68
cheungderek 0:e083abcfe7a8 69 ///Binds the socket to local host or a multicast address
cheungderek 0:e083abcfe7a8 70 UDPSocketErr bind(const Host& me);
cheungderek 0:e083abcfe7a8 71
cheungderek 0:e083abcfe7a8 72 ///Sends data
cheungderek 0:e083abcfe7a8 73 /*
cheungderek 0:e083abcfe7a8 74 @param pHost : host to send data to
cheungderek 0:e083abcfe7a8 75 @return a negative error code or the number of bytes transmitted
cheungderek 0:e083abcfe7a8 76 */
cheungderek 0:e083abcfe7a8 77 int /*if < 0 : UDPSocketErr*/ sendto(const char* buf, int len, Host* pHost);
cheungderek 0:e083abcfe7a8 78
cheungderek 0:e083abcfe7a8 79 ///Receives data
cheungderek 0:e083abcfe7a8 80 /*
cheungderek 0:e083abcfe7a8 81 @param pHost : host from which this piece of data comes from
cheungderek 0:e083abcfe7a8 82 @return a negative error code or the number of bytes received
cheungderek 0:e083abcfe7a8 83 */
cheungderek 0:e083abcfe7a8 84 int /*if < 0 : UDPSocketErr*/ recvfrom(char* buf, int len, Host* pHost);
cheungderek 0:e083abcfe7a8 85
cheungderek 0:e083abcfe7a8 86 /* TODO NTH : printf / scanf helpers that call send/recv */
cheungderek 0:e083abcfe7a8 87
cheungderek 0:e083abcfe7a8 88 ///Closes socket
cheungderek 0:e083abcfe7a8 89 UDPSocketErr close();
cheungderek 0:e083abcfe7a8 90
cheungderek 0:e083abcfe7a8 91 //Callbacks
cheungderek 0:e083abcfe7a8 92 ///Setups callback
cheungderek 0:e083abcfe7a8 93 /**
cheungderek 0:e083abcfe7a8 94 @param pMethod : callback function
cheungderek 0:e083abcfe7a8 95 */
cheungderek 0:e083abcfe7a8 96 void setOnEvent( void (*pMethod)(UDPSocketEvent) );
cheungderek 0:e083abcfe7a8 97
cheungderek 0:e083abcfe7a8 98 class CDummy;
cheungderek 0:e083abcfe7a8 99 ///Setups callback
cheungderek 0:e083abcfe7a8 100 /**
cheungderek 0:e083abcfe7a8 101 @param pItem : instance of class on which to execute the callback method
cheungderek 0:e083abcfe7a8 102 @param pMethod : callback method
cheungderek 0:e083abcfe7a8 103 */
cheungderek 0:e083abcfe7a8 104 template<class T>
cheungderek 0:e083abcfe7a8 105 void setOnEvent( T* pItem, void (T::*pMethod)(UDPSocketEvent) )
cheungderek 0:e083abcfe7a8 106 {
cheungderek 0:e083abcfe7a8 107 m_pCbItem = (CDummy*) pItem;
cheungderek 0:e083abcfe7a8 108 m_pCbMeth = (void (CDummy::*)(UDPSocketEvent)) pMethod;
cheungderek 0:e083abcfe7a8 109 }
cheungderek 0:e083abcfe7a8 110
cheungderek 0:e083abcfe7a8 111 ///Disables callback
cheungderek 0:e083abcfe7a8 112 void resetOnEvent();
cheungderek 0:e083abcfe7a8 113
cheungderek 0:e083abcfe7a8 114 protected:
cheungderek 0:e083abcfe7a8 115 void onNetUdpSocketEvent(NetUdpSocketEvent e);
cheungderek 0:e083abcfe7a8 116 UDPSocketErr checkInst();
cheungderek 0:e083abcfe7a8 117
cheungderek 0:e083abcfe7a8 118 private:
cheungderek 0:e083abcfe7a8 119 NetUdpSocket* m_pNetUdpSocket;
cheungderek 0:e083abcfe7a8 120
cheungderek 0:e083abcfe7a8 121 CDummy* m_pCbItem;
cheungderek 0:e083abcfe7a8 122 void (CDummy::*m_pCbMeth)(UDPSocketEvent);
cheungderek 0:e083abcfe7a8 123
cheungderek 0:e083abcfe7a8 124 void (*m_pCb)(UDPSocketEvent);
cheungderek 0:e083abcfe7a8 125
cheungderek 0:e083abcfe7a8 126 };
cheungderek 0:e083abcfe7a8 127
cheungderek 0:e083abcfe7a8 128 #endif