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 #ifndef LWIPNETDNSREQUEST_H
cheungderek 0:e083abcfe7a8 25 #define LWIPNETDNSREQUEST_H
cheungderek 0:e083abcfe7a8 26
cheungderek 0:e083abcfe7a8 27 #define NET_LWIP_STACK 1
cheungderek 0:e083abcfe7a8 28 #include "if/net/netdnsrequest.h"
cheungderek 0:e083abcfe7a8 29
cheungderek 0:e083abcfe7a8 30 //struct ip_addr_t;
cheungderek 0:e083abcfe7a8 31 #include "lwip/ip_addr.h"
cheungderek 0:e083abcfe7a8 32
cheungderek 0:e083abcfe7a8 33 class LwipNetDnsRequest : public NetDnsRequest
cheungderek 0:e083abcfe7a8 34 {
cheungderek 0:e083abcfe7a8 35 public:
cheungderek 0:e083abcfe7a8 36 LwipNetDnsRequest(const char* hostname);
cheungderek 0:e083abcfe7a8 37 LwipNetDnsRequest(Host* pHost);
cheungderek 0:e083abcfe7a8 38 virtual ~LwipNetDnsRequest();
cheungderek 0:e083abcfe7a8 39
cheungderek 0:e083abcfe7a8 40 //Execute request & return OK if found, NOTFOUND or ERROR on error, or PROCESSING if the request has not completed yet
cheungderek 0:e083abcfe7a8 41 virtual void poll();
cheungderek 0:e083abcfe7a8 42
cheungderek 0:e083abcfe7a8 43 virtual void close();
cheungderek 0:e083abcfe7a8 44
cheungderek 0:e083abcfe7a8 45 protected:
cheungderek 0:e083abcfe7a8 46 void foundCb(const char *name, ip_addr_t *ipaddr);
cheungderek 0:e083abcfe7a8 47
cheungderek 0:e083abcfe7a8 48 private:
cheungderek 0:e083abcfe7a8 49 enum LwipNetDnsState
cheungderek 0:e083abcfe7a8 50 {
cheungderek 0:e083abcfe7a8 51 LWIPNETDNS_START,
cheungderek 0:e083abcfe7a8 52 LWIPNETDNS_PROCESSING, //Req has not completed
cheungderek 0:e083abcfe7a8 53 LWIPNETDNS_NOTFOUND,
cheungderek 0:e083abcfe7a8 54 LWIPNETDNS_ERROR,
cheungderek 0:e083abcfe7a8 55 LWIPNETDNS_OK
cheungderek 0:e083abcfe7a8 56 };
cheungderek 0:e083abcfe7a8 57
cheungderek 0:e083abcfe7a8 58 LwipNetDnsState m_state;
cheungderek 0:e083abcfe7a8 59 bool m_cbFired;
cheungderek 0:e083abcfe7a8 60
cheungderek 0:e083abcfe7a8 61 //Static callbacks : Transforms into a C++ callback
cheungderek 0:e083abcfe7a8 62 static void sFoundCb(const char *name, ip_addr_t *ipaddr, void *arg);
cheungderek 0:e083abcfe7a8 63
cheungderek 0:e083abcfe7a8 64 bool m_closing;
cheungderek 0:e083abcfe7a8 65 };
cheungderek 0:e083abcfe7a8 66
cheungderek 0:e083abcfe7a8 67 #endif