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  • 介绍计算机上实现gsm modem短消息收发的模式

    介绍计算机上实现gsm modem短消息收发的模式,描述gsm modem PDU 模式,包括PDU 模式下的gsm modem模块UCS2 编码、解码原理,以及gsm modem发送与接收PDU 串的编制方式, VB 中的MSCOMM 控件,实现gsm modem短消息收发的核心内容。-briefed on computer modem gsm SMS transceiver model, described GSM modem PDU models, including the PDU mode GSM modem module UCS2 encoding, decoding principle, and GSM modems send and Receive PDU Series presentation, the VB MSCOMM Control and achieve short GSM modem news transceiver core content

    标签: modem gsm 计算机 收发

    上传时间: 2017-03-10

    上传用户:cxl274287265

  • nRF24E1编程下载板是我们自行开发的简易无线通信模块nRF24E1的在线下载板

    nRF24E1编程下载板是我们自行开发的简易无线通信模块nRF24E1的在线下载板,使用方便。 nRF24E1编程下载板源程序包括上位机程序、单片机固件程序和nRF24E1内51核控制程序, 分别存放在“上位机程序”、“AT89S52”和“nRF24E1”三个文件夹内。 “上位机程序”内有应用软件download.exe。 “AT89S52”内有单片机固件源程序download.c,可以直接编译连接生成下载文件,下载到目标单片机AT89S52中。 “nRF24E1”内有控制nRF24E1工作的源程序,分别是: 24E1.c:典型控制应用; putchar.c:nRF24E1串行通信源程序; transmit.c:nRF24E1无线发送源程序; Receive.c:nRF24E1无线接收源程序; “Temperature”:nRF24E1控制DS18B20温度采集并无线发送源程序。

    标签: nRF 24E 24 E1

    上传时间: 2014-01-08

    上传用户:ommshaggar

  • This paper will discuss the design of an asynchronous FIFO,Asynchronous FIFOs are widely used in the

    This paper will discuss the design of an asynchronous FIFO,Asynchronous FIFOs are widely used in the computer networking industry to Receive data at a particular frequency and transmit them at another frequency. An asynchronous FIFO has two different clocks: one for read and one for write.

    标签: Asynchronous asynchronous the discuss

    上传时间: 2013-12-09

    上传用户:Thuan

  • The SMS Example demonstrates how to: · Create a Short Message Service (SMS) message. ·

    The SMS Example demonstrates how to: · Create a Short Message Service (SMS) message. · Send the SMS message that was created. · Receive an SMS message. · Read a Received SMS message.

    标签: demonstrates SMS Example Message

    上传时间: 2017-07-30

    上传用户:JIUSHICHEN

  • toeplitz hash算法实现

    toeplitz hash算法实现,支持微软Receive-Side Scaling机制

    标签: toeplitz hash 算法

    上传时间: 2014-01-17

    上传用户:奇奇奔奔

  • Solving Problem inheritance by Prolog The parents of Mark are Linda and Peter. The parents of Fio

    Solving Problem inheritance by Prolog The parents of Mark are Linda and Peter. The parents of Fiona are Linda and Peter. The parents of Andrea are Fiona and Andrew. The parents of John are Fiona and Andrew. The parents of Eileen are Andrea and Alan. The parents of Jane are Andrea and Alan. Total Inheritance Everyone in my family, who holds a PhD should Receive $100,000. Everyone in my family, Receives $3,000 for every aunt they have who holds a PhD. Everyone in my family, Receives $2,000 for every uncle they have who holds a PhD. Everyone in my family, Receives $100 for every sibling holding a University degree. Peter, Mark, and Fiona hold a PhD. Mark, Linda, and Andrea all hold a MSc. Andrew, John, Alan, Eileen hold a BSc. Jane holds a Tafe certificate.

    标签: parents inheritance The Solving

    上传时间: 2014-01-08

    上传用户:15071087253

  • net_tcp.h

    /* ********************************************************************************************************* *                                             uC/TCP-IP V2 *                                      The Embedded TCP/IP Suite * *                          (c) Copyright 2003-2010; Micrium, Inc.; Weston, FL * *               All rights reserved.  Protected by international copyright laws. * *               uC/TCP-IP is provided in source form to registered licensees ONLY.  It is  *               illegal to distribute this source code to any third party unless you Receive  *               written permission by an authorized Micrium representative.  Knowledge of  *               the source code may NOT be used to develop a similar product. * *               Please help us continue to provide the Embedded community with the finest  *               software available.  Your honesty is greatly appreciated. * *               You can contact us at www.micrium.com. ********************************************************************************************************* */ /* ********************************************************************************************************* * *                                          NETWORK TCP LAYER *                                   (TRANSMISSION CONTROL PROTOCOL) * * Filename      : net_tcp.h * Version       : V2.10 * Programmer(s) : ITJ ********************************************************************************************************* * Note(s)       : (1) Supports Transmission Control Protocol as described in RFC #793 with the following *                     restrictions/constraints : * *                     (a) TCP Security & Precedence NOT supported               RFC # 793, Section 3.6 * *                     (b) TCP Urgent Data           NOT supported               RFC # 793, Section 3.7 *                                                                                'The Communication of *                                                                                  Urgent Information' * *                     (c) The following TCP options NOT supported :              * *                         (1) Window Scale                                      RFC #1072, Section 2 *                                                                               RFC #1323, Section 2 *                         (2) Selective Acknowledgement (SACK)                  RFC #1072, Section 3 *                                                                               RFC #2018 *                                                                               RFC #2883 *                         (3) TCP Echo                                          RFC #1072, Section 4 *                         (4) Timestamp                                         RFC #1323, Section 3.2 *                         (5) Protection Against Wrapped Sequences (PAWS)       RFC #1323, Section 4 * *                     (d) #### IP-Options-to-TCP-Connection                     RFC #1122, Section 4.2.3.8 *                                Handling NOT           supported * *                     (e) #### ICMP-Error-Message-to-TCP-Connection             RFC #1122, Section 4.2.3.9 *                                Handling NOT currently supported * *                 (2) TCP Layer assumes/requires Network Socket Layer (see 'net_sock.h  MODULE  Note #1a2'). ********************************************************************************************************* */ /*$PAGE*/ /* ********************************************************************************************************* *                                               MODULE * * Note(s) : (1) TCP Layer module is NOT required for UDP-to-Application API configuration. * *               See also 'net_cfg.h  TRANSPORT LAYER CONFIGURATION' *                      & 'net_cfg.h  USER DATAGRAM PROTOCOL LAYER CONFIGURATION'. * *               See also 'net_tcp.h  Note #2'. * *           (2) The following TCP-module-present configuration value MUST be pre-#define'd in  *               'net_cfg_net.h' PRIOR to all other network modules that require TCP Layer *               configuration (see 'net_cfg_net.h  TCP LAYER CONFIGURATION  Note #2b') : * *                   NET_TCP_MODULE_PRESENT ********************************************************************************************************* */ #ifdef   NET_TCP_MODULE_PRESENT                                 /* See Note #2.                                         */ /* ********************************************************************************************************* *                                               EXTERNS ********************************************************************************************************* */ #if ((defined(NET_TCP_MODULE)) && \      (defined(NET_GLOBALS_EXT))) #define  NET_TCP_EXT #else #define  NET_TCP_EXT  extern #endif /*$PAGE*/ /* ********************************************************************************************************* *                                               DEFINES ********************************************************************************************************* */ /* ********************************************************************************************************* *                                         TCP HEADER DEFINES * * Note(s) : (1) The following TCP value MUST be pre-#define'd in 'net_def.h' PRIOR to 'net_buf.h' so that *               the Network Buffer Module can configure maximum buffer header size (see 'net_def.h  TCP *               LAYER DEFINES' & 'net_buf.h  NETWORK BUFFER INDEX & SIZE DEFINES  Note #1') : * *               (a) NET_TCP_HDR_SIZE_MAX                  60        (NET_TCP_HDR_LEN_MAX *                                                                  * NET_TCP_HDR_LEN_WORD_SIZE) * *           (2) Urgent pointer & data NOT supported (see 'net_tcp.h  Note #1b'). ********************************************************************************************************* */ #define  NET_TCP_HDR_LEN_MASK                         0xF000u #define  NET_TCP_HDR_LEN_SHIFT                            12u #define  NET_TCP_HDR_LEN_NONE                              0u #define  NET_TCP_HDR_LEN_MIN                               5u #define  NET_TCP_HDR_LEN_MAX                              15u #define  NET_TCP_HDR_LEN_WORD_SIZE                       CPU_WORD_SIZE_32 #define  NET_TCP_HDR_SIZE_MIN                           (NET_TCP_HDR_LEN_MIN * NET_TCP_HDR_LEN_WORD_SIZE) #if 0                                                           /* See Note #1a.                                        */ #define  NET_TCP_HDR_SIZE_MAX                           (NET_TCP_HDR_LEN_MAX * NET_TCP_HDR_LEN_WORD_SIZE) #endif #define  NET_TCP_HDR_SIZE_TOT_MIN                       (NET_IP_HDR_SIZE_TOT_MIN + NET_TCP_HDR_SIZE_MIN) #define  NET_TCP_HDR_SIZE_TOT_MAX                       (NET_IP_HDR_SIZE_TOT_MAX + NET_TCP_HDR_SIZE_MAX) #define  NET_TCP_PSEUDO_HDR_SIZE                          12u   /*  = sizeof(NET_TCP_PSEUDO_HDR)                        */ #define  NET_TCP_PORT_NBR_RESERVED                       NET_PORT_NBR_RESERVED #define  NET_TCP_PORT_NBR_NONE                           NET_TCP_PORT_NBR_RESERVED #define  NET_TCP_HDR_URG_PTR_NONE                     0x0000u   /* See Note #2.                                         */ /*$PAGE*/ /* ********************************************************************************************************* *                                       TCP HEADER FLAG DEFINES * * Note(s) : (1) See 'TCP HEADER  Note #2' for flag fields. * *           (2) Urgent pointer & data NOT supported (see 'net_tcp.h  Note #1b'). ********************************************************************************************************* */ #define  NET_TCP_HDR_FLAG_MASK                        0x0FFFu #define  NET_TCP_HDR_FLAG_NONE                    DEF_BIT_NONE #define  NET_TCP_HDR_FLAG_RESERVED                    0x0FE0u   /* MUST be '0'.                                         */ #define  NET_TCP_HDR_FLAG_URGENT                  DEF_BIT_05    /* See Note #2.                                         */ #define  NET_TCP_HDR_FLAG_ACK                     DEF_BIT_04 #define  NET_TCP_HDR_FLAG_PUSH                    DEF_BIT_03 #define  NET_TCP_HDR_FLAG_RESET                   DEF_BIT_02 #define  NET_TCP_HDR_FLAG_SYNC                    DEF_BIT_01 #define  NET_TCP_HDR_FLAG_FIN                     DEF_BIT_00 #define  NET_TCP_HDR_FLAG_CLOSE                   NET_TCP_HDR_FLAG_FIN /* ********************************************************************************************************* *                                          TCP FLAG DEFINES ********************************************************************************************************* */                                                                 /* ------------------ NET TCP FLAGS ------------------- */ #define  NET_TCP_FLAG_NONE                        DEF_BIT_NONE #define  NET_TCP_FLAG_USED                        DEF_BIT_00    /* TCP conn cur used; i.e. NOT in free TCP conn pool.   */                                                                 /* ------------------ TCP TX  FLAGS ------------------- */                                                                 /* TCP tx flags copied from TCP hdr flags.              */ #define  NET_TCP_FLAG_TX_FIN                      NET_TCP_HDR_FLAG_FIN #define  NET_TCP_FLAG_TX_CLOSE                    NET_TCP_FLAG_TX_FIN #define  NET_TCP_FLAG_TX_SYNC                     NET_TCP_HDR_FLAG_SYNC #define  NET_TCP_FLAG_TX_RESET                    NET_TCP_HDR_FLAG_RESET #define  NET_TCP_FLAG_TX_PUSH                     NET_TCP_HDR_FLAG_PUSH #define  NET_TCP_FLAG_TX_ACK                      NET_TCP_HDR_FLAG_ACK #define  NET_TCP_FLAG_TX_URGENT                   NET_TCP_HDR_FLAG_URGENT #define  NET_TCP_FLAG_TX_BLOCK                    DEF_BIT_07                                                                 /* ------------------ TCP RX  FLAGS ------------------- */ #define  NET_TCP_FLAG_RX_DATA_PEEK                DEF_BIT_08 #define  NET_TCP_FLAG_RX_BLOCK                    DEF_BIT_15 /*$PAGE*/ /* ********************************************************************************************************* *                                          TCP TYPE DEFINES * * Note(s) : (1) NET_TCP_TYPE_&&& #define values specifically chosen as ASCII representations of the TCP *               types.  Memory displays of TCP types will display with their chosen ASCII names. ********************************************************************************************************* */                                                                 /* ------------------ NET TCP TYPES ------------------- */ #if     (CPU_CFG_ENDIAN_TYPE == CPU_ENDIAN_TYPE_BIG) #define  NET_TCP_TYPE_NONE                        0x4E4F4E45u   /* "NONE" in ASCII.                                     */ #define  NET_TCP_TYPE_CONN                        0x54435020u   /* "TCP " in ASCII.                                     */ #else #if     (CPU_CFG_DATA_SIZE   == CPU_WORD_SIZE_32) #define  NET_TCP_TYPE_NONE                        0x454E4F4Eu   /* "NONE" in ASCII.                                     */ #define  NET_TCP_TYPE_CONN                        0x20504354u   /* "TCP " in ASCII.                                     */ #elif   (CPU_CFG_DATA_SIZE   == CPU_WORD_SIZE_16) #define  NET_TCP_TYPE_NONE                        0x4F4E454Eu   /* "NONE" in ASCII.                                     */ #define  NET_TCP_TYPE_CONN                        0x43542050u   /* "TCP " in ASCII.                                     */ #else                                                           /* Dflt CPU_WORD_SIZE_08.                               */ #define  NET_TCP_TYPE_NONE                        0x4E4F4E45u   /* "NONE" in ASCII.                                     */ #define  NET_TCP_TYPE_CONN                        0x54435020u   /* "TCP " in ASCII.                                     */ #endif #endif /* ********************************************************************************************************* *                                     TCP SEQUENCE NUMBER DEFINES * * Note(s) : (1) TCP initial transmit sequence number is incremented by a fixed value, preferably a large *               prime value or a large value with multiple unique factors. * *               (a) One reasonable TCP initial transmit sequence number increment value example : * *                       65527  =  37 * 23 * 11 * 7 * * *               #### NET_TCP_TX_SEQ_NBR_CTR_INC could be developer-configured in 'net_cfg.h'. * *               See also 'NET_TCP_TX_GET_SEQ_NBR()  Notes #1b2 & #1c2'. ********************************************************************************************************* */ #define  NET_TCP_SEQ_NBR_NONE                              0u #define  NET_TCP_ACK_NBR_NONE                            NET_TCP_SEQ_NBR_NONE #define  NET_TCP_TX_SEQ_NBR_CTR_INC                    65527u   /* See Note #1.                                         */ #define  NET_TCP_ACK_NBR_DUP_WIN_SIZE_SCALE                4 /*$PAGE*/ /* ********************************************************************************************************* *                                    TCP DATA/TOTAL LENGTH DEFINES * * Note(s) : (1) (a) TCP total length #define's (NET_TCP_TOT_LEN)  relate to the total size of a complete *                   TCP packet, including the packet's TCP header.  Note that a complete TCP packet MAY *                   be fragmented in multiple Internet Protocol packets. * *               (b) TCP data  length #define's (NET_TCP_DATA_LEN) relate to the data  size of a complete *                   TCP packet, equal to the total TCP packet length minus its TCP header size.  Note  *                   that a complete TCP packet MAY be fragmented in multiple Internet Protocol packets. ********************************************************************************************************* */                                                                                 /* See Notes #1a & #1b.                 */ #define  NET_TCP_DATA_LEN_MIN                              0u #define  NET_TCP_TOT_LEN_MIN                            (NET_TCP_HDR_SIZE_MIN + NET_TCP_DATA_LEN_MIN) #define  NET_TCP_TOT_LEN_MAX                            (NET_IP_TOT_LEN_MAX   - NET_IP_HDR_SIZE_MIN ) #define  NET_TCP_DATA_LEN_MAX                           (NET_TCP_TOT_LEN_MAX  - NET_TCP_HDR_SIZE_MIN) /*$PAGE*/ /* ********************************************************************************************************* *                                      TCP SEGMENT SIZE DEFINES * * Note(s) : (1) (a) RFC # 879, Section 3 states that the TCP Maximum Segment Size "counts only *                   data octets in the segment, ... not the TCP header or the IP header". * *               (b) RFC #1122, Section 4.2.2.6 requires that : * *                   (1) "The MSS value to be sent in an MSS option must be less than or equal to * *                        (A) MMS_R - 20 * *                        where MMS_R is the maximum size for a transport-layer message that can *                        be Received." * *                   (2) "If an MSS option is not Received at connection setup, TCP MUST assume a *                        default send MSS of 536 (576 - 40)." * *                   See also 'net_ip.h  IP DATA/TOTAL LENGTH DEFINES  Note #1'. ********************************************************************************************************* */                                                                                         /* See Note #1.                 */ #define  NET_TCP_MAX_SEG_SIZE_DFLT                      (NET_IP_MAX_DATAGRAM_SIZE_DFLT - NET_IP_HDR_SIZE_MIN - NET_TCP_HDR_SIZE_MIN) #define  NET_TCP_MAX_SEG_SIZE_DFLT_RX                    NET_TCP_DATA_LEN_MAX           /* See Note #1b1.               */ #define  NET_TCP_MAX_SEG_SIZE_DFLT_TX                    NET_TCP_MAX_SEG_SIZE_DFLT      /* See Note #1b2.               */ #define  NET_TCP_MAX_SEG_SIZE_NONE                         0u #define  NET_TCP_MAX_SEG_SIZE_MIN                        NET_TCP_MAX_SEG_SIZE_DFLT #define  NET_TCP_MAX_SEG_SIZE_MAX                        NET_TCP_DATA_LEN_MAX #define  NET_TCP_SEG_LEN_MIN                             NET_TCP_DATA_LEN_MIN #define  NET_TCP_SEG_LEN_MAX                             NET_TCP_DATA_LEN_MAX #define  NET_TCP_SEG_LEN_SYNC                              1u #define  NET_TCP_SEG_LEN_FIN                               1u #define  NET_TCP_SEG_LEN_CLOSE                           NET_TCP_SEG_LEN_FIN #define  NET_TCP_SEG_LEN_ACK                               0u #define  NET_TCP_SEG_LEN_RESET                             0u #define  NET_TCP_SEG_LEN_PROBE                             0u #define  NET_TCP_DATA_LEN_TX_SYNC                          0u #define  NET_TCP_DATA_LEN_TX_FIN                           0u #define  NET_TCP_DATA_LEN_TX_CLOSE                       NET_TCP_DATA_LEN_TX_FIN #define  NET_TCP_DATA_LEN_TX_ACK                           0u #define  NET_TCP_DATA_LEN_TX_PROBE_NO_DATA                 0u #define  NET_TCP_DATA_LEN_TX_PROBE_DATA                    1u #define  NET_TCP_DATA_LEN_TX_RESET                         0u #define  NET_TCP_TX_PROBE_DATA                          0x00u /* ********************************************************************************************************* *                                       TCP WINDOW SIZE DEFINES * * Note(s) : (1) Although NO RFC specifies the absolute minimum TCP connection window size value allowed, *               RFC #793, Section 3.7 'Data Communication : Managing the Window' states that for "the *               window ... there is an assumption that this is related to the currently available data *               buffer space available for this connection". ********************************************************************************************************* */ #define  NET_TCP_WIN_SIZE_NONE                             0u #define  NET_TCP_WIN_SIZE_MIN                            NET_TCP_MAX_SEG_SIZE_MIN #define  NET_TCP_WIN_SIZE_MAX                            DEF_INT_16U_MAX_VAL /*$PAGE*/ /* ********************************************************************************************************* *                                     TCP HEADER OPTIONS DEFINES * * Note(s) : (1) See the following RFC's for TCP options summary : * *               (a) RFC # 793, Section  3.1 'Header Format : Options' *               (b) RFC #1122; Sections 4.2.2.5, 4.2.2.6 * *           (2) TCP option types are encoded in the first octet for each TCP option as follows : * *                           -------- *                           | TYPE | *                           -------- * *               The TCP option type value determines the TCP option format : * *               (a) The following TCP option types are single-octet TCP options -- i.e. the option type *                   octet is the ONLY octet for the TCP option. * *                   (1) TYPE =  0   End of Options List *                   (2) TYPE =  1   No Operation * * *               (b) All other TCP options MUST be multi-octet TCP options (see RFC #1122, Section 4.2.2.5) : * *                           ------------------------------ *                           | TYPE | LEN  |   TCP OPT    | *                           ------------------------------ * *                       where  *                               TYPE        Indicates the specific TCP option type *                               LEN         Indicates the total    TCP option length, in octets, including  *                                                the option type & the option length octets *                               TCP OPT     Additional TCP option octets, if any, that contain the remaining *                                                TCP option information * *                   The following TCP option types are multi-octet TCP options where the option's second *                   octet specify the total TCP option length, in octets, including the option type & the *                   option length octets : * *                   (1) TYPE =  2   Maximum Segment Size        See RFC # 793, Section  3.1 'Header Format : *                                                                   Options : Maximum Segment Size'; *                                                                   RFC #1122, Section 4.2.2.6; *                                                                   RFC # 879, Section 3 * *                   (2) TYPE =  3   Window  Scale               See 'net_tcp.h  Note #1c1' *                   (3) TYPE =  4   SACK Allowed                See 'net_tcp.h  Note #1c2' *                   (4) TYPE =  5   SACK Option                 See 'net_tcp.h  Note #1c2' *                   (5) TYPE =  6   Echo Request                See 'net_tcp.h  Note #1c3' *                   (6) TYPE =  7   Echo Reply                  See 'net_tcp.h  Note #1c3' *                   (7) TYPE =  8   Timestamp                   See 'net_tcp.h  Note #1c4' * *           (3) TCP header allows for a maximum option list length of 40 octets : * *                   NET_TCP_HDR_OPT_SIZE_MAX = NET_TCP_HDR_SIZE_MAX - NET_TCP_HDR_SIZE_MIN * *                                            = 60 - 20 * *                                            = 40 * *           (4) 'NET_TCP_OPT_SIZE'  MUST be pre-defined PRIOR to all definitions that require TCP option  *                size data type. ********************************************************************************************************* */ /*$PAGE*/ #define  NET_TCP_HDR_OPT_END_LIST                          0u #define  NET_TCP_HDR_OPT_NOP                               1u #define  NET_TCP_HDR_OPT_MAX_SEG_SIZE                      2u #define  NET_TCP_HDR_OPT_WIN_SCALE                         3u #define  NET_TCP_HDR_OPT_SACK_PERMIT                       4u #define  NET_TCP_HDR_OPT_SACK                              5u #define  NET_TCP_HDR_OPT_ECHO_REQ                          6u #define  NET_TCP_HDR_OPT_ECHO_REPLY                        7u #define  NET_TCP_HDR_OPT_TS                                8u #define  NET_TCP_HDR_OPT_PAD                             NET_TCP_HDR_OPT_END_LIST #define  NET_TCP_HDR_OPT_LEN_END_LIST                      1u #define  NET_TCP_HDR_OPT_LEN_NOP                           1u #define  NET_TCP_HDR_OPT_LEN_MAX_SEG_SIZE                  4u #define  NET_TCP_HDR_OPT_LEN_WIN_SCALE                     3u #define  NET_TCP_HDR_OPT_LEN_SACK_PERMIT                   2u #define  NET_TCP_HDR_OPT_LEN_ECHO_REQ                      6u #define  NET_TCP_HDR_OPT_LEN_ECHO_REPLY                    6u #define  NET_TCP_HDR_OPT_LEN_TS                           10u #define  NET_TCP_HDR_OPT_LEN_SACK_MIN                      6u #define  NET_TCP_HDR_OPT_LEN_SACK_MAX                     38u #define  NET_TCP_HDR_OPT_LEN_MIN                           1u #define  NET_TCP_HDR_OPT_LEN_MIN_LEN                       2u #define  NET_TCP_HDR_OPT_LEN_MAX                          38u typedef  CPU_INT32U  NET_TCP_OPT_SIZE;                          /* TCP opt size data type (see Note #4).                */ #define  NET_TCP_HDR_OPT_SIZE_WORD               (sizeof(NET_TCP_OPT_SIZE)) #define  NET_TCP_HDR_OPT_SIZE_MAX                       (NET_TCP_HDR_SIZE_MAX - NET_TCP_HDR_SIZE_MIN) #define  NET_TCP_HDR_OPT_NBR_MIN                           0u #define  NET_TCP_HDR_OPT_NBR_MAX                        (NET_TCP_HDR_OPT_SIZE_MAX / NET_TCP_HDR_OPT_SIZE_WORD) #define  NET_TCP_HDR_OPT_IX                              NET_TCP_HDR_SIZE_MIN /*$PAGE*/ /* ********************************************************************************************************* *                                TCP OPTION CONFIGURATION TYPE DEFINES * * Note(s) : (1) NET_TCP_OPT_CFG_TYPE_&&& #define values specifically chosen as ASCII representations of  *               the TCP option configuration types.  Memory displays of TCP option configuration buffers  *               will display the TCP option configuration TYPEs with their chosen ASCII names. ********************************************************************************************************* */                                                                 /* ---------------- TCP OPT CFG TYPES ----------------- */ #if     (CPU_CFG_ENDIAN_TYPE == CPU_ENDIAN_TYPE_BIG) #define  NET_TCP_OPT_CFG_TYPE_NONE                0x4E4F4E45u   /* "NONE" in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_MAX_SEG_SIZE        0x4D535320u   /* "MSS " in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_WIN_SCALE           0x57494E20u   /* "WIN " in ASCII (see 'net_tcp.h  Note #1c1').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK_PERMIT         0x53434B50u   /* "SCKP" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK                0x5341434Bu   /* "SACK" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REQ            0x45524551u   /* "EREQ" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REPLY          0x4543484Fu   /* "ECHO" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_TS                  0x54532020u   /* "TS  " in ASCII (see 'net_tcp.h  Note #1c4').        */ #else #if     (CPU_CFG_DATA_SIZE   == CPU_WORD_SIZE_32) #define  NET_TCP_OPT_CFG_TYPE_NONE                0x454E4F4Eu   /* "NONE" in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_MAX_SEG_SIZE        0x2053534Du   /* "MSS " in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_WIN_SCALE           0x204E4957u   /* "WIN " in ASCII (see 'net_tcp.h  Note #1c1').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK_PERMIT         0x504B4353u   /* "SCKP" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK                0x4B434153u   /* "SACK" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REQ            0x51455245u   /* "EREQ" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REPLY          0x4F484345u   /* "ECHO" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_TS                  0x20205354u   /* "TS  " in ASCII (see 'net_tcp.h  Note #1c4').        */ #elif   (CPU_CFG_DATA_SIZE   == CPU_WORD_SIZE_16) #define  NET_TCP_OPT_CFG_TYPE_NONE                0x4F4E454Eu   /* "NONE" in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_MAX_SEG_SIZE        0x534D2053u   /* "MSS " in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_WIN_SCALE           0x4957204Eu   /* "WIN " in ASCII (see 'net_tcp.h  Note #1c1').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK_PERMIT         0x4353504Bu   /* "SCKP" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK                0x41534B43u   /* "SACK" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REQ            0x52455145u   /* "EREQ" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REPLY          0x43454F48u   /* "ECHO" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_TS                  0x53542020u   /* "TS  " in ASCII (see 'net_tcp.h  Note #1c4').        */ #else                                                           /* Dflt CPU_WORD_SIZE_08.                               */ #define  NET_TCP_OPT_CFG_TYPE_NONE                0x4E4F4E45u   /* "NONE" in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_MAX_SEG_SIZE        0x4D535320u   /* "MSS " in ASCII.                                     */ #define  NET_TCP_OPT_CFG_TYPE_WIN_SCALE           0x57494E20u   /* "WIN " in ASCII (see 'net_tcp.h  Note #1c1').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK_PERMIT         0x53434B50u   /* "SCKP" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_SACK                0x5341434Bu   /* "SACK" in ASCII (see 'net_tcp.h  Note #1c2').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REQ            0x45524551u   /* "EREQ" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_ECHO_REPLY          0x4543484Fu   /* "ECHO" in ASCII (see 'net_tcp.h  Note #1c3').        */ #define  NET_TCP_OPT_CFG_TYPE_TS                  0x54532020u   /* "TS  " in ASCII (see 'net_tcp.h  Note #1c4').        */ #endif #endif /*$PAGE*/ /* ********************************************************************************************************* *                                   TCP CONNECTION TIMEOUT DEFINES * * Note(s) : (1) (a) (1) RFC #1122, Section 4.2.2.13 'DISCUSSION' states that "the graceful close algorithm *                       of TCP requires that the connection state remain defined on (at least) one end of *                       the connection, for a timeout period of 2xMSL ... During this period, the (remote  *                       socket, local socket) pair that defines the connection is busy and cannot be reused". * *                   (2) The following sections reiterate that the TIME-WAIT state timeout scalar is two *                       maximum segment lifetimes (2 MSL) : * *                       (A) RFC #793, Section 3.9 'Event Processing : SEGMENT ARRIVES : *                               Check Sequence Number : TIME-WAIT STATE' *                       (B) RFC #793, Section 3.9 'Event Processing : SEGMENT ARRIVES : *                               Check FIN Bit         : TIME-WAIT STATE' * *               (b) (1) RFC #793, Section 3.3 'Sequence Numbers : Knowing When to Keep Quiet' states that *                       "the Maximum Segment Lifetime (MSL) is ... to be 2 minutes.  This is an engineering *                       choice, and may be changed if experience indicates it is desirable to do so". * *                   (2) Microsoft Corporation's Windows XP defaults MSL to 15 seconds. ********************************************************************************************************* */                                                                                     /* Max seg timeout (see Note #1b) : */ #define  NET_TCP_CONN_TIMEOUT_MAX_SEG_MIN_SEC   (  0u                           )   /* ... min  =  0 seconds            */ #define  NET_TCP_CONN_TIMEOUT_MAX_SEG_MAX_SEC   (  2u * DEF_TIME_NBR_SEC_PER_MIN)   /* ... max  =  2 minutes            */ #define  NET_TCP_CONN_TIMEOUT_MAX_SEG_DFLT_SEC  ( 15u                           )   /* ... dflt = 15 seconds            */ #define  NET_TCP_CONN_TIMEOUT_MAX_SEG_SCALAR       2u                               /* ... scalar (see Note #1a).       */ #define  NET_TCP_CONN_TIMEOUT_CONN_DFLT_SEC     (120u * DEF_TIME_NBR_SEC_PER_MIN)   /* Dflt conn timeout = 120 minutes  */ #define  NET_TCP_CONN_TIMEOUT_USER_DFLT_SEC     ( 30u * DEF_TIME_NBR_SEC_PER_MIN)   /* Dflt user timeout =  30 minutes  */ /*$PAGE*/ /* ********************************************************************************************************* *                                        TCP CONNECTION STATES * * Note(s) : (1) See the following RFC's for TCP state machine summary : * *               (a) RFC # 793; Sections 3.2, 3.4, 3.5, 3.9 *               (b) RFC #1122; Sections 4.2.2.8, 4.2.2.10, 4.2.2.11, 4.2.2.13, 4.2.2.18, 4.2.2.20 * *           (2) (a) #### Additional closing-data-available state used for closing connections to allow the *                   application layer to Receive any remaining data. * *                   See also 'net_tcp.c  NetTCP_RxPktConnHandlerFinWait1()  Note #2f5A2', *                            'net_tcp.c  NetTCP_RxPktConnHandlerFinWait2()  Note #2f5B', *                            'net_tcp.c  NetTCP_RxPktConnHandlerClosing()   Note #2d2B2a1B', *                          & 'net_tcp.c  NetTCP_RxPktConnHandlerLastAck()   Note #2d2A1b'. ********************************************************************************************************* */ #define  NET_TCP_CONN_STATE_NONE                           0u #define  NET_TCP_CONN_STATE_FREE                           1u #define  NET_TCP_CONN_STATE_CLOSED                        10u #define  NET_TCP_CONN_STATE_LISTEN                        20u #define  NET_TCP_CONN_STATE_SYNC_RXD                      30u #define  NET_TCP_CONN_STATE_SYNC_RXD_PASSIVE              31u #define  NET_TCP_CONN_STATE_SYNC_RXD_ACTIVE               32u #define  NET_TCP_CONN_STATE_SYNC_TXD                      35u #define  NET_TCP_CONN_STATE_CONN                          40u #define  NET_TCP_CONN_STATE_FIN_WAIT_1                    50u #define  NET_TCP_CONN_STATE_FIN_WAIT_2                    51u #define  NET_TCP_CONN_STATE_CLOSING                       52u #define  NET_TCP_CONN_STATE_TIME_WAIT                     53u #define  NET_TCP_CONN_STATE_CLOSE_WAIT                    55u #define  NET_TCP_CONN_STATE_LAST_ACK                      56u #define  NET_TCP_CONN_STATE_CLOSING_DATA_AVAIL            59u   /* See Note #2a.                                        */ /* ********************************************************************************************************* *                                     TCP CONNECTION QUEUE STATES ********************************************************************************************************* */ #define  NET_TCP_RX_Q_STATE_NONE                           0u #define  NET_TCP_RX_Q_STATE_CLOSED                       100u #define  NET_TCP_RX_Q_STATE_CLOSING                      101u #define  NET_TCP_RX_Q_STATE_SYNC                         110u #define  NET_TCP_RX_Q_STATE_CONN                         111u #define  NET_TCP_TX_Q_STATE_NONE                           0u #define  NET_TCP_TX_Q_STATE_CLOSED                       200u #define  NET_TCP_TX_Q_STATE_CLOSING                      201u #define  NET_TCP_TX_Q_STATE_SYNC                         210u #define  NET_TCP_TX_Q_STATE_CONN                         211u #define  NET_TCP_TX_Q_STATE_SUSPEND                      215u #define  NET_TCP_TX_Q_STATE_CLOSED_SUSPEND               220u #define  NET_TCP_TX_Q_STATE_CLOSING_SUSPEND              221u /*$PAGE*/ /* ********************************************************************************************************* *                                     TCP CONNECTION CODE DEFINES **************

    标签: tcp uCOS-II

    上传时间: 2015-11-22

    上传用户:the same kong

  • Smart+City+Networks+Through+the+Internet+of+Things

    Smart City Networks: Through the Internet of Things is composed of research results, analyses, and ideas, which focus on a diversity of interconnected factors relating with urbanization, its “smartness,” and overarching “internet of things (IoT).” The latter refers to interconnected objects and devices – through compu- tational operations – which can Receive signals and actuate systems.

    标签: Networks Internet Through Things Smart City

    上传时间: 2020-05-26

    上传用户:shancjb

  • Coding+for+MIMO+Communication+Systems

    Employing multiple transmit and Receive antennas, namely using multi-input multi-output (MIMO) systems, has proven to be a major breakthrough in providing reliable wireless communication links. Since their invention in the mid-1990s, transmit diversity, achieved through space-time coding, and spatial multiplexing schemes have been the focus of much research in the area of wireless communications. 

    标签: Communication Systems Coding MIMO for

    上传时间: 2020-05-26

    上传用户:shancjb

  • EDGE+for+Mobile+Internet

    The General Packet Radio Service (GPRS) allows an end user to send and Receive data in packet transfer mode within a public land mobile network (PLMN) without using a permanent connection between the mobile station (MS) and the external network during data transfer. This way, GPRS opti- mizes the use of network and radio resources (RRs) since, unlike circuit- switched mode, no connection between the MS and the external network is established when there is no data flow in progress. Thus, this RR optimiza- tion makes it possible for the operator to offer more attractive fees.

    标签: Mobile EDGE

    上传时间: 2020-05-27

    上传用户:shancjb