Testing the module's internet connection (spoiler: it doesn't work) WARNING: this code has been written in a hurry during an hackathon. It's total crap.
Testing the module's internet connection (spoiler: it doesn't work) WARNING: this code has been written in a hurry during an hackathon. It's total crap.
modem.h@1:180ed9f09775, 2015-09-19 (annotated)
- Committer:
- gipmad
- Date:
- Sat Sep 19 14:47:39 2015 +0000
- Revision:
- 1:180ed9f09775
- Parent:
- 0:8f9b472ff818
-
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
gipmad | 0:8f9b472ff818 | 1 | /* |
gipmad | 0:8f9b472ff818 | 2 | modem.h |
gipmad | 0:8f9b472ff818 | 3 | 2014 Copyright (c) Seeed Technology Inc. All right reserved. |
gipmad | 0:8f9b472ff818 | 4 | |
gipmad | 0:8f9b472ff818 | 5 | Author:lawliet zou(lawliet.zou@gmail.com) |
gipmad | 0:8f9b472ff818 | 6 | 2014-2-24 |
gipmad | 0:8f9b472ff818 | 7 | |
gipmad | 0:8f9b472ff818 | 8 | This library is free software; you can redistribute it and/or |
gipmad | 0:8f9b472ff818 | 9 | modify it under the terms of the GNU Lesser General Public |
gipmad | 0:8f9b472ff818 | 10 | License as published by the Free Software Foundation; either |
gipmad | 0:8f9b472ff818 | 11 | version 2.1 of the License, or (at your option) any later version. |
gipmad | 0:8f9b472ff818 | 12 | |
gipmad | 0:8f9b472ff818 | 13 | This library is distributed in the hope that it will be useful, |
gipmad | 0:8f9b472ff818 | 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
gipmad | 0:8f9b472ff818 | 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
gipmad | 0:8f9b472ff818 | 16 | Lesser General Public License for more details. |
gipmad | 0:8f9b472ff818 | 17 | |
gipmad | 0:8f9b472ff818 | 18 | You should have received a copy of the GNU Lesser General Public |
gipmad | 0:8f9b472ff818 | 19 | License along with this library; if not, write to the Free Software |
gipmad | 0:8f9b472ff818 | 20 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
gipmad | 0:8f9b472ff818 | 21 | */ |
gipmad | 0:8f9b472ff818 | 22 | |
gipmad | 0:8f9b472ff818 | 23 | #ifndef __MODEM_H__ |
gipmad | 0:8f9b472ff818 | 24 | #define __MODEM_H__ |
gipmad | 0:8f9b472ff818 | 25 | |
gipmad | 0:8f9b472ff818 | 26 | #include "mbed.h" |
gipmad | 0:8f9b472ff818 | 27 | |
gipmad | 0:8f9b472ff818 | 28 | #define DEFAULT_TIMEOUT 5 |
gipmad | 0:8f9b472ff818 | 29 | |
gipmad | 0:8f9b472ff818 | 30 | |
gipmad | 0:8f9b472ff818 | 31 | extern Serial pc; |
gipmad | 0:8f9b472ff818 | 32 | |
gipmad | 0:8f9b472ff818 | 33 | |
gipmad | 0:8f9b472ff818 | 34 | enum DataType { |
gipmad | 0:8f9b472ff818 | 35 | CMD = 0, |
gipmad | 0:8f9b472ff818 | 36 | DATA = 1, |
gipmad | 0:8f9b472ff818 | 37 | }; |
gipmad | 0:8f9b472ff818 | 38 | |
gipmad | 0:8f9b472ff818 | 39 | /** Modem class. |
gipmad | 0:8f9b472ff818 | 40 | * Used for Modem communication. attention that Modem module communicate with MCU in serial protocol |
gipmad | 0:8f9b472ff818 | 41 | */ |
gipmad | 0:8f9b472ff818 | 42 | class Modem |
gipmad | 0:8f9b472ff818 | 43 | { |
gipmad | 0:8f9b472ff818 | 44 | |
gipmad | 0:8f9b472ff818 | 45 | public: |
gipmad | 0:8f9b472ff818 | 46 | /** Create Modem Instance |
gipmad | 0:8f9b472ff818 | 47 | * @param tx uart transmit pin to communicate with Modem |
gipmad | 0:8f9b472ff818 | 48 | * @param rx uart receive pin to communicate with Modem |
gipmad | 0:8f9b472ff818 | 49 | * @param baudRate baud rate of uart communication |
gipmad | 0:8f9b472ff818 | 50 | */ |
gipmad | 0:8f9b472ff818 | 51 | Modem(PinName tx, PinName rx, int baudRate) : serialModem(tx, rx) { |
gipmad | 0:8f9b472ff818 | 52 | serialModem.baud(baudRate); |
gipmad | 0:8f9b472ff818 | 53 | }; |
gipmad | 0:8f9b472ff818 | 54 | |
gipmad | 0:8f9b472ff818 | 55 | Serial serialModem; |
gipmad | 0:8f9b472ff818 | 56 | //protected: |
gipmad | 0:8f9b472ff818 | 57 | /** Power on Modem |
gipmad | 0:8f9b472ff818 | 58 | */ |
gipmad | 0:8f9b472ff818 | 59 | void preInit(void); |
gipmad | 0:8f9b472ff818 | 60 | |
gipmad | 0:8f9b472ff818 | 61 | /** check serialModem is readable or not |
gipmad | 0:8f9b472ff818 | 62 | * @returns |
gipmad | 0:8f9b472ff818 | 63 | * true on readable |
gipmad | 0:8f9b472ff818 | 64 | * false on not readable |
gipmad | 0:8f9b472ff818 | 65 | */ |
gipmad | 0:8f9b472ff818 | 66 | bool readable(); |
gipmad | 0:8f9b472ff818 | 67 | |
gipmad | 0:8f9b472ff818 | 68 | /** read one byte from serialModem |
gipmad | 0:8f9b472ff818 | 69 | * @returns |
gipmad | 0:8f9b472ff818 | 70 | * one byte read from serialModem |
gipmad | 0:8f9b472ff818 | 71 | */ |
gipmad | 0:8f9b472ff818 | 72 | char readByte(void); |
gipmad | 0:8f9b472ff818 | 73 | |
gipmad | 0:8f9b472ff818 | 74 | /** read from Modem module and save to buffer array |
gipmad | 0:8f9b472ff818 | 75 | * @param buffer buffer array to save what read from Modem module |
gipmad | 0:8f9b472ff818 | 76 | * @param count the maximal bytes number read from Modem module |
gipmad | 0:8f9b472ff818 | 77 | * @param timeOut time to wait for reading from Modem module |
gipmad | 0:8f9b472ff818 | 78 | * @returns |
gipmad | 0:8f9b472ff818 | 79 | * 0 on success |
gipmad | 0:8f9b472ff818 | 80 | * -1 on error |
gipmad | 0:8f9b472ff818 | 81 | */ |
gipmad | 0:8f9b472ff818 | 82 | int readBuffer(char* buffer,int count, unsigned int timeOut); |
gipmad | 0:8f9b472ff818 | 83 | |
gipmad | 0:8f9b472ff818 | 84 | |
gipmad | 0:8f9b472ff818 | 85 | /** clean Buffer |
gipmad | 0:8f9b472ff818 | 86 | * @param buffer buffer to clean |
gipmad | 0:8f9b472ff818 | 87 | * @param count number of bytes to clean |
gipmad | 0:8f9b472ff818 | 88 | */ |
gipmad | 0:8f9b472ff818 | 89 | void cleanBuffer(char* buffer, int count); |
gipmad | 0:8f9b472ff818 | 90 | |
gipmad | 0:8f9b472ff818 | 91 | /** send AT command to Modem module |
gipmad | 0:8f9b472ff818 | 92 | * @param cmd command array which will be send to GPRS module |
gipmad | 0:8f9b472ff818 | 93 | */ |
gipmad | 0:8f9b472ff818 | 94 | void sendCmd(const char* cmd); |
gipmad | 0:8f9b472ff818 | 95 | |
gipmad | 0:8f9b472ff818 | 96 | /**send "AT" to Modem module |
gipmad | 0:8f9b472ff818 | 97 | */ |
gipmad | 0:8f9b472ff818 | 98 | void sendATTest(void); |
gipmad | 0:8f9b472ff818 | 99 | |
gipmad | 0:8f9b472ff818 | 100 | /** compare the response from GPRS module with a string |
gipmad | 0:8f9b472ff818 | 101 | * @param resp buffer to be compared |
gipmad | 0:8f9b472ff818 | 102 | * @param len length that will be compared |
gipmad | 0:8f9b472ff818 | 103 | * @param timeout waiting seconds till timeout |
gipmad | 0:8f9b472ff818 | 104 | */ |
gipmad | 0:8f9b472ff818 | 105 | bool respCmp(const char *resp, unsigned int len, unsigned int timeout); |
gipmad | 0:8f9b472ff818 | 106 | |
gipmad | 0:8f9b472ff818 | 107 | /** check Modem module response before time out |
gipmad | 0:8f9b472ff818 | 108 | * @param *resp correct response which Modem module will return |
gipmad | 0:8f9b472ff818 | 109 | * @param *timeout waiting seconds till timeout |
gipmad | 0:8f9b472ff818 | 110 | * @returns |
gipmad | 0:8f9b472ff818 | 111 | * 0 on success |
gipmad | 0:8f9b472ff818 | 112 | * -1 on error |
gipmad | 0:8f9b472ff818 | 113 | */ |
gipmad | 0:8f9b472ff818 | 114 | int waitForResp(const char *resp, unsigned int timeout,DataType type); |
gipmad | 0:8f9b472ff818 | 115 | |
gipmad | 0:8f9b472ff818 | 116 | /** send AT command to GPRS module and wait for correct response |
gipmad | 0:8f9b472ff818 | 117 | * @param *cmd AT command which will be send to GPRS module |
gipmad | 0:8f9b472ff818 | 118 | * @param *resp correct response which GPRS module will return |
gipmad | 0:8f9b472ff818 | 119 | * @param *timeout waiting seconds till timeout |
gipmad | 0:8f9b472ff818 | 120 | * @returns |
gipmad | 0:8f9b472ff818 | 121 | * 0 on success |
gipmad | 0:8f9b472ff818 | 122 | * -1 on error |
gipmad | 0:8f9b472ff818 | 123 | */ |
gipmad | 0:8f9b472ff818 | 124 | int sendCmdAndWaitForResp(const char* data, const char *resp, unsigned timeout,DataType type); |
gipmad | 0:8f9b472ff818 | 125 | |
gipmad | 0:8f9b472ff818 | 126 | Timer timeCnt; |
gipmad | 0:8f9b472ff818 | 127 | |
gipmad | 0:8f9b472ff818 | 128 | private: |
gipmad | 0:8f9b472ff818 | 129 | |
gipmad | 0:8f9b472ff818 | 130 | }; |
gipmad | 0:8f9b472ff818 | 131 | |
gipmad | 0:8f9b472ff818 | 132 | #endif |