基于Rabbit中央處理器的uCOS-II嵌入式解決方案課件

基于Rabbit中央處理器的uC/OS-II嵌入式解決方案基于Rabbit中央處理器的uC/OS-II嵌入式解決方案1從硬件入手:了解Rabbit2000/3000Z180的改進(jìn)和提高硬件：集成部分外設(shè)、更高速度的16位CPU

實(shí)時(shí)時(shí)鐘、watchdog、從口編程、4/6個(gè)串口5個(gè)8bitstimers、2個(gè)10bitstimers、4級(jí)中斷遠(yuǎn)程下載及啟動(dòng)軟件：對(duì)C語(yǔ)言更有力的支持從硬件入手:了解Rabbit2000/3000Z180的改進(jìn)2Rabbit4000CPU后向兼容于Rabbit2000&3000CPU16M平鋪內(nèi)存，最大64M(4頁(yè))尋址空間支持16位的接口8通道DMA支持?jǐn)?shù)據(jù)塊拷貝，提高數(shù)據(jù)傳輸速度80Mhz主頻，共支持471條精簡(jiǎn)指令，浮點(diǎn)運(yùn)算能力內(nèi)嵌10M/100M以太網(wǎng)收發(fā)器CPU硬件斷點(diǎn)和單步執(zhí)行中斷新的16位計(jì)數(shù)器,輸出可以控制增強(qiáng)的串口作業(yè)頻率:2kHz-100MHz1.8V的核心電壓,3.3V或者1.8VI/O的電壓Rabbit4000CPU后向兼容于Rabbit2003Rabbit2000計(jì)算能力FloatingPoint

Operation*RABBIT2000

@29.49MHzZilogZ180

@24.58MHzDallasDS80C320

@33.18MHzPhillips80C51

@33.18MHzAMD188ES

@36.86MHzAdd9.6μs263278194Multiply12μs423485184SquareRoot32μs343334805355Sine94μs12384521112804CompilerDynamicC6.10DynamicC6.10Kiel51JSIM-51BorlandC3.31*Flash存取時(shí)間為55nsRabbit2000計(jì)算能力FloatingPoint

O4系統(tǒng)結(jié)構(gòu)—16位CPU上的嵌入系統(tǒng)Rabbit2000/3000硬件系統(tǒng)BIOS硬件驅(qū)動(dòng)直接面向硬件的應(yīng)用應(yīng)用程序I/O控制應(yīng)用文件系統(tǒng)RTOS應(yīng)用程序系統(tǒng)結(jié)構(gòu)—16位CPU上的嵌入系統(tǒng)Rabbit2000/305Complier/Edit簡(jiǎn)介ResetColdload.bin→Polit.binBIOS應(yīng)用程序DynamicC(PC)DTRReset2400bps57600bps57600bps115200bps100msComplier/Edit簡(jiǎn)介ResetColdload.b6BIOS功能為應(yīng)用程序提供低端服務(wù)系統(tǒng)初始化與DynamicC集成開發(fā)環(huán)境通訊存儲(chǔ)空間配置BIOS功能為應(yīng)用程序提供低端服務(wù)7BIOSFlowchart

Startataddress0初始化BIOS與DynamicC通訊調(diào)用MAIN（）被診斷工作(目前不支持）是否使用BIOS服務(wù)？設(shè)置存儲(chǔ)控制和BIOS服務(wù)是否有編程電纜？Master工作面向應(yīng)用程序的BIOS服務(wù)應(yīng)用程序BIOSFlowchartStartataddres8編譯和運(yùn)行模式編譯模式：CompileincludedebugcodeCompilewithoutdebugcode運(yùn)行模式：Polling模式/調(diào)試模式非調(diào)試模式編譯和運(yùn)行模式編譯模式：運(yùn)行模式：9更進(jìn)一步：

DynamicC中Rabbit2000/3000內(nèi)存管理基于μC/OS-Ⅱ系統(tǒng)的應(yīng)用DynamicC支持的文件系統(tǒng)TCP/IP編程串口編程I2C、SPI總線編程FFT、AES函數(shù)庫(kù)的使用

更進(jìn)一步：10Rabbit2000的存儲(chǔ)管理

--段頁(yè)管理的存儲(chǔ)系統(tǒng)Rabbit2000的存儲(chǔ)管理11MemoryMapof16-bitAddressingSpaceRootInterchangeMemoryMapof16-bitAddressin12基于Rabbit中央處理器的uCOS-II嵌入式解決方案課件13RAMENDRAM_START*0x1000DATASIZEXalloc_Store[0].size(calculatedbyInit_Xalloc())XallocregionReserve_Store[0].topRAM_START*0x1000+0xff0x100Quadrantswitchingcode為DATA、WATCH保留RAMENDRAM_START*0x1000DATASIZ14邏輯空間中段的內(nèi)容（Small模式）byseveralstacksorremappinginRAM(Watchsegment,InterruptVector)Byspecialfunctionsorkeywords(Assemblyfunction)邏輯空間中段的內(nèi)容（Small模式）byseverals15代碼和數(shù)據(jù)位置的調(diào)整#classoptionrootxdataxmemxstringroot2xmem(),xmem2root(),xmem2mem()#ximport代碼和數(shù)據(jù)位置的調(diào)整#classoption16自定制的存儲(chǔ)映射（BIOS的修改）DATAORGWATCHCODESIZE更改映射#defineDATASEGVAL0x91

#rvarorgrootdata(DATASEGVAL)0xc5ff0x6600apply//growsdown

#rcodorgrootcode0x000x00000x6000apply

#wcodorgwatcode(DATASEGVAL)0xc6000x0400apply

#xcodorgxmemcode0xf80xe0000x1a000apply

//datadeclarationsstarthere

只能編譯成.bin文件自定制的存儲(chǔ)映射（BIOS的修改）DATAORG#defin17文件系統(tǒng)的支持邁向完整的系統(tǒng)文件系統(tǒng)的支持邁向完整的系統(tǒng)18FS2與FAT系統(tǒng)的概念對(duì)應(yīng)FS2系統(tǒng)：BIOS中預(yù)留的空間LogicalextentLogicalsectorMetadataFilenumber/Filename（1~255）FAT系統(tǒng)：DiskDiskpartition簇Directoryentry—FATFilenameFS2與FAT系統(tǒng)的概念對(duì)應(yīng)FS2系統(tǒng)：FAT系統(tǒng)：19FS2的使用“安裝”物理空間

修改XMEM_RESERVE_SIZE、FS2_RAM_RESERVE或定義FS2_USE_PROGRAM_FLASH“分區(qū)”

fs_get_flash_lx、fs_get_other_lx、fs_get_ram_lx初始化（第一次使用）fs_init()格式化lx_format()

FS2的使用“安裝”物理空間20FS2使用的注意事項(xiàng)各個(gè)宏定義及存儲(chǔ)器中空間的分配堆棧的使用

fs2.lib中默認(rèn)堆棧為2048bytes；LS倍增時(shí)約多用100bytes的堆棧空間讀寫時(shí)間

512LS時(shí)，fs_init()耗時(shí)2秒可重入性Errornumber大部分與POSIX一致FS2使用的注意事項(xiàng)各個(gè)宏定義及存儲(chǔ)器中空間的分配21μC/OS-IIreal-timeoperatingsystem--Z-WORLD系統(tǒng)的基石μC/OS-II22系統(tǒng)開發(fā)面臨的挑戰(zhàn)市場(chǎng)發(fā)展技術(shù)進(jìn)步開發(fā)時(shí)間系統(tǒng)穩(wěn)定性系統(tǒng)復(fù)雜度系統(tǒng)開發(fā)系統(tǒng)開發(fā)面臨的挑戰(zhàn)市場(chǎng)發(fā)展技術(shù)進(jìn)步開發(fā)時(shí)間系統(tǒng)穩(wěn)定性系統(tǒng)復(fù)雜23使用RTOS的利弊優(yōu)點(diǎn):有利于系統(tǒng)建模良好的響應(yīng)時(shí)間程序模塊化方便的數(shù)據(jù)封裝缺點(diǎn):系統(tǒng)占用一定資源調(diào)試難度加大使用RTOS的利弊優(yōu)點(diǎn):缺點(diǎn):24μC/OS-II的定位及性能特點(diǎn)實(shí)時(shí)內(nèi)核*（20MHz)

單進(jìn)程多線程64個(gè)優(yōu)先級(jí)（系統(tǒng)使用8個(gè)）ServiceTime獲得信號(hào)量10μs釋放信號(hào)量6~38μs任務(wù)切換17~35μs寫數(shù)據(jù)到隊(duì)列49~68μs讀數(shù)據(jù)到隊(duì)列12~38μs創(chuàng)建任務(wù)158μs注銷任務(wù)36~57μsμC/OS-II的定位及性能特點(diǎn)實(shí)時(shí)內(nèi)核25RTOS環(huán)境中的開發(fā)Dataprocessingfunctions時(shí)間觸發(fā)子系統(tǒng)輸入輸出初始化任務(wù)狀態(tài)圖（事件觸發(fā)）硬件平臺(tái)軟件平臺(tái)外設(shè)RTOS環(huán)境中的開發(fā)Dataprocessingfunc26應(yīng)用實(shí)例—埋入式液罐監(jiān)測(cè)系統(tǒng)系統(tǒng)性能概述：1.監(jiān)測(cè)8個(gè)油罐的罐內(nèi)溫度和液位;2.根據(jù)溫度和液位計(jì)算罐內(nèi)狀態(tài).異常時(shí)報(bào)警;3.人機(jī)界面:4*4的鍵盤、20個(gè)字符的LCD和熱敏微型打印機(jī);4.報(bào)警鈴(鍵盤控制停止報(bào)警).應(yīng)用實(shí)例—埋入式液罐監(jiān)測(cè)系統(tǒng)系統(tǒng)性能概述：27細(xì)化時(shí)間需求讀入模擬量間隔時(shí)間:10-1s對(duì)按鍵的響應(yīng)時(shí)間:10-1s模擬量計(jì)算時(shí)間:秒級(jí)液罐溢出或泄露的判定時(shí)間:102s打印速率:2~3行/s報(bào)告長(zhǎng)度:30~59行打印機(jī)每次處理一行數(shù)據(jù)細(xì)化時(shí)間需求讀入模擬量間隔時(shí)間:10-1s28劃分任務(wù)任務(wù)優(yōu)先級(jí)創(chuàng)建任務(wù)原因處理液位任務(wù)低“日?！比蝿?wù)處理溢出和泄漏任務(wù)高關(guān)鍵任務(wù)鍵盤處理任務(wù)高控制系統(tǒng)狀態(tài)顯示處理任務(wù)高有不同的消息傳遞到此任務(wù)打印處理任務(wù)中處理時(shí)間過(guò)長(zhǎng)劃分任務(wù)任務(wù)優(yōu)先級(jí)創(chuàng)建任務(wù)原因處理液位任務(wù)低“日?！比蝿?wù)處理29任務(wù)狀態(tài)圖LevelcalculationtaskButtoncommandtaskPrinterFormattingtaskDisplaytaskOverflowDetectiontaskFloatreadingmoduleTimerinterruptroutineButtoninterruptroutinePrinterinterruptroutineLeveldatamoduleFloatinterruptroutineRTOS傳遞的消息其它任務(wù)激活PrinterLCD任務(wù)狀態(tài)圖LevelButtonPrinterDispl30TCP/IP編程(Pre7.30)--Z-world系統(tǒng)騰飛的雙翅TCP/IP編程(Pre7.30)--Z-world系統(tǒng)騰31TCP/IPandHardware

HowapackettravelsthroughtheNetworkLayers)

ApplicationsPacketPacketPacketPacketPacketTCPUDPIPHardwareLayerApplicationTransportNetworkPhysical&DataLinkTCP/IPandHardware

Howapack32DynamicC支持的協(xié)議IP:InternetProtocolTCP:TransmissionControlProtocolUDP:UserDatagramProtocolFTP:FileTransferProtocolTFTP:TrivialFileTransferProtocolTelnetDNS:DomainNameSystemICMP:InternetControlMessageProtocolPPP:PointtoPointProtocolSMTP:SimpleMailTransferProtocolHTTP:HyperTextTransferProtocolPOP3:PostofficeProtocol,v3SNMP:SimpleNetworkManagementProtocolDynamicC支持的協(xié)議IP:InternetPro33TCP/IP配置pd_getaddress()讀出MAC地址宏MY_IP_ADDRESS宏MY_NETMASK宏MY_GATEWAY宏MY_NAMESERVERtcpconfigsethostid()sethostname()TCP/IP配置pd_getaddress()讀出MAC34TCP/IP動(dòng)態(tài)配置(BOOTPorDHCPClient)BOOTP/DHCPControlMacros

(在#use“dcrtcp.lib”之前)USE_DHCPDHCP_USE_BOOTPDHCP_CLASS_IDDHCP_USE_TFTPsock_init()自動(dòng)配置0:OK. 1:Ethernetpacketdriverinitializationfailed. 2:DHCPfailed,usingfallbackdefinitions. 3:DHCPfailed,nofallbacksdefined. Other:reserved.dhcp_acquire()、dhcp_release()重配置TCP/IP動(dòng)態(tài)配置(BOOTPorDHCPClie35TCP應(yīng)用（Client)#defineMY_IP_ADDRESS“25"#defineMY_NETMASK ""#definePORT180main(){tcp_Sockets;….. sock_init(); tcp_open(&s,0,ip,PORT,NULL); sock_wait_established(&s,0,NULL,&status); sock_mode(&s,TCP_MODE_ASCII); while(tcp_tick(&s)){ sock_wait_input(&s,0,NULL,&status); if(sock_gets(&s,buffer,2048))printf("%s\n",buffer); }sock_err:…..}TCP應(yīng)用（Client)#defineMY_IP_ADD36TCP應(yīng)用（Server)#defineMY_IP_ADDRESS“25"#defineMY_NETMASK""#definePORT123tcp_Socketechosock;main(){…….sock_init(); while(1){ tcp_listen(&echosock,PORT,0,0,NULL,0); sock_wait_established(&echosock,0,NULL,&status); sock_mode(&echosock,TCP_MODE_ASCII); while(tcp_tick(&echosock)){…… }sock_err:…. }}TCP應(yīng)用（Server)#defineMY_IP_ADD37UDP應(yīng)用（Server&Client)sock_init()Udp_open(P1,P2,P3,P4)

PARAMETER1:socketPARAMETER2:localportPARAMETER3:acceptableremoteip,0toconnectonfirstdatagram,-1 forall(resolve(“55”))PARAMETER4:acceptableremoteport,0toconnectonfirstdatagramPARAMETER5:functiontocallwhendataisreceived,NULLforplacingdatainthesocket'sreceivebuffer.Udp_send()、udp_recv()….UDP應(yīng)用（Server&Client)sock_in38DNS應(yīng)用(Client)#defineMY_NAMESERVER resolve()Non-blockingDNS查詢r(jià)esolve_name_start()resolve_name_check()resolve_cancel()其他區(qū)域DNSserver緩存DNSserverDNS解析器緩存ApplicationDNS應(yīng)用(Client)#defineMY_NAMESE39ZSERVER.LIB（HTTP&FTPserver工具庫(kù)）DataStructure：ServerSprc(FormVar):可傳輸對(duì)象列表ServerAuth：用戶列表Constants:以上結(jié)構(gòu)體中的參數(shù)和下面函數(shù)的返回值；數(shù)據(jù)類型定義；服務(wù)器類型定義和參數(shù)Functions：對(duì)以上結(jié)構(gòu)體的設(shè)定、修改和讀取參數(shù)ZSERVER.LIB（HTTP&FTPserver工具40HTTPServer的應(yīng)用應(yīng)用程序處理Http消息使用HTTP.LIB的http_handler()HttpSpec:Webserver提供的文件、變量、函數(shù)HttpType:處理文件的連接HttpRealm:HttpSpec中的需認(rèn)證的資源HttpState:CGI函數(shù)接口HTTPServer的應(yīng)用應(yīng)用程序處理Http消息41HTTPServer實(shí)現(xiàn)#defineMY_IP_ADDRESS"00"#defineMY_NETMASK""#use"dcrtcp.lib"#use"http.lib"main(){sock_init();http_init();tcp_reserveport(80);while(1){http_handler();}}HTTPServer實(shí)現(xiàn)#defineMY_IP_AD42HTTPServer示例1靜態(tài)頁(yè)面#ximport"samples/tcpip/http/pages/static.html"index_html#ximport"samples/tcpip/http/pages/rabbit1.gif"rabbit1_gif

constHttpTypehttp_types[]={{".html","text/html",NULL},{".gif","image/gif",NULL}};constHttpSpechttp_flashspec[]={{HTTPSPEC_FILE,"/",index_html,NULL,0,NULL,NULL},{HTTPSPEC_FILE,"/index.html",index_html,NULL,0,NULL,NULL},{HTTPSPEC_FILE,"/rabbit1.gif",rabbit1_gif,NULL,0,NULL,NULL},};HTTPServer示例1靜態(tài)頁(yè)面#ximport43HTTPServer示例2動(dòng)態(tài)刷新constHttpTypehttp_types[]={{".shtml","text/html",shtml_handler},//ssi{".html","text/html",NULL},//html{".cgi","",NULL},//cgi{".gif","image/gif",NULL}};longcounter;constHttpSpechttp_flashspec[]={{HTTPSPEC_FILE,"/",index_html,NULL,0,NULL,NULL},{HTTPSPEC_FILE,"/index.shtml",index_html,NULL,0,NULL,NULL},{HTTPSPEC_VARIABLE,"counter",0,&counter,INT32,"%ld",NULL}};HTTPServer示例2動(dòng)態(tài)刷新constHt44HTTPServer示例3CGIconstHttpSpechttp_flashspec[]={{HTTPSPEC_FILE,"/",index_html,NULL,0,NULL,NULL},{HTTPSPEC_FILE,"/index.html",index_html,NULL,0,NULL,NULL},{HTTPSPEC_FILE,"/rabbit1.gif",rabbit1_gif,NULL,0,NULL,NULL},{HTTPSPEC_FUNCTION,"/test.cgi",0,test_cgi,0,NULL,NULL}};inttest_cgi(HttpState*state){ staticchardate[20]; staticcharbuffer[256]; staticinthitcount; #GLOBAL_INIT{hitcount=0;} hitcount++; http_date_str(date); sprintf(buffer,teststr,date,hitcount,REDIRECTTO); cgi_sendstring(state,buffer);return0;}HTTPServer示例3CGIconstHtt45FTPSever的實(shí)現(xiàn)main(){ intfile，user;file=sspec_addxmemfile("rabbitA.gif",rabbit1_gif,SERVER_FTP); user=sauth_adduser("anonymous","",SERVER_FTP); sspec_setuser(file,user); sock_init(); ftp_init(NULL);/*usedefaulthandlers*/ tcp_reserveport(21); while(1){ftp_tick(); }}FTPSever的實(shí)現(xiàn)main()46FTPClient的實(shí)現(xiàn)main(){ staticcharbuf[1024]; sock_init(); ftp_client_setup(resolve(REMOTE_HOST),REMOTE_PORT,REMOTE_USERNAME, REMOTE_PASSWORD,FTP_MODE_DOWNLOAD,REMOTE_FILE, NULL,buf,sizeof(buf)) while(0==ftp_client_tick()) ;}FTPClient的實(shí)現(xiàn)main()47SMTPMailClient實(shí)現(xiàn)main(){ sock_init();smtp_sendmail(TO,FROM,SUBJECT,BODY); while(smtp_mailtick()==SMTP_PENDING) continue;if(smtp_status()==SMTP_SUCCESS) printf("Messagesent\n"); else printf("Errorsendingmessage\n");}SMTPMailClient實(shí)現(xiàn)main()48POP3Client實(shí)現(xiàn)main(){sock_init();pop3_init(storemsg); pop3_getmail(POP_USER,POP_PASS,IP); while((retval=pop3_tick())==POP_PENDING ）continue;if(retval==POP_SUCCESS)printf(“Successfull!\n"); if(retval==POP_TIME)printf(“Timedout!\n"); if(retval==POP_ERROR)printf(“Error!\n"); }參數(shù)為回傳處理函數(shù)（庫(kù)中已定義格式）POP3Client實(shí)現(xiàn)main()參數(shù)為回傳處理函數(shù)（49謝謝！敬請(qǐng)指教…丁元國(guó)Tel1/2/3Fax-Mail:dingyg99@Msn:dingyg99@謝謝！敬請(qǐng)指教…丁元國(guó)50基于Rabbit中央處理器的uC/OS-II嵌入式解決方案基于Rabbit中央處理器的uC/OS-II嵌入式解決方案51從硬件入手:了解Rabbit2000/3000Z180的改進(jìn)和提高硬件：集成部分外設(shè)、更高速度的16位CPU

實(shí)時(shí)時(shí)鐘、watchdog、從口編程、4/6個(gè)串口5個(gè)8bitstimers、2個(gè)10bitstimers、4級(jí)中斷遠(yuǎn)程下載及啟動(dòng)軟件：對(duì)C語(yǔ)言更有力的支持從硬件入手:了解Rabbit2000/3000Z180的改進(jìn)52Rabbit4000CPU后向兼容于Rabbit2000&3000CPU16M平鋪內(nèi)存，最大64M(4頁(yè))尋址空間支持16位的接口8通道DMA支持?jǐn)?shù)據(jù)塊拷貝，提高數(shù)據(jù)傳輸速度80Mhz主頻，共支持471條精簡(jiǎn)指令，浮點(diǎn)運(yùn)算能力內(nèi)嵌10M/100M以太網(wǎng)收發(fā)器CPU硬件斷點(diǎn)和單步執(zhí)行中斷新的16位計(jì)數(shù)器,輸出可以控制增強(qiáng)的串口作業(yè)頻率:2kHz-100MHz1.8V的核心電壓,3.3V或者1.8VI/O的電壓Rabbit4000CPU后向兼容于Rabbit20053Rabbit2000計(jì)算能力FloatingPoint

Operation*RABBIT2000

@29.49MHzZilogZ180

@24.58MHzDallasDS80C320

@33.18MHzPhillips80C51

@33.18MHzAMD188ES

@36.86MHzAdd9.6μs263278194Multiply12μs423485184SquareRoot32μs343334805355Sine94μs12384521112804CompilerDynamicC6.10DynamicC6.10Kiel51JSIM-51BorlandC3.31*Flash存取時(shí)間為55nsRabbit2000計(jì)算能力FloatingPoint

O54系統(tǒng)結(jié)構(gòu)—16位CPU上的嵌入系統(tǒng)Rabbit2000/3000硬件系統(tǒng)BIOS硬件驅(qū)動(dòng)直接面向硬件的應(yīng)用應(yīng)用程序I/O控制應(yīng)用文件系統(tǒng)RTOS應(yīng)用程序系統(tǒng)結(jié)構(gòu)—16位CPU上的嵌入系統(tǒng)Rabbit2000/3055Complier/Edit簡(jiǎn)介ResetColdload.bin→Polit.binBIOS應(yīng)用程序DynamicC(PC)DTRReset2400bps57600bps57600bps115200bps100msComplier/Edit簡(jiǎn)介ResetColdload.b56BIOS功能為應(yīng)用程序提供低端服務(wù)系統(tǒng)初始化與DynamicC集成開發(fā)環(huán)境通訊存儲(chǔ)空間配置BIOS功能為應(yīng)用程序提供低端服務(wù)57BIOSFlowchart

Startataddress0初始化BIOS與DynamicC通訊調(diào)用MAIN（）被診斷工作(目前不支持）是否使用BIOS服務(wù)？設(shè)置存儲(chǔ)控制和BIOS服務(wù)是否有編程電纜？Master工作面向應(yīng)用程序的BIOS服務(wù)應(yīng)用程序BIOSFlowchartStartataddres58編譯和運(yùn)行模式編譯模式：CompileincludedebugcodeCompilewithoutdebugcode運(yùn)行模式：Polling模式/調(diào)試模式非調(diào)試模式編譯和運(yùn)行模式編譯模式：運(yùn)行模式：59更進(jìn)一步：

DynamicC中Rabbit2000/3000內(nèi)存管理基于μC/OS-Ⅱ系統(tǒng)的應(yīng)用DynamicC支持的文件系統(tǒng)TCP/IP編程串口編程I2C、SPI總線編程FFT、AES函數(shù)庫(kù)的使用

更進(jìn)一步：60Rabbit2000的存儲(chǔ)管理

--段頁(yè)管理的存儲(chǔ)系統(tǒng)Rabbit2000的存儲(chǔ)管理61MemoryMapof16-bitAddressingSpaceRootInterchangeMemoryMapof16-bitAddressin62基于Rabbit中央處理器的uCOS-II嵌入式解決方案課件63RAMENDRAM_START*0x1000DATASIZEXalloc_Store[0].size(calculatedbyInit_Xalloc())XallocregionReserve_Store[0].topRAM_START*0x1000+0xff0x100Quadrantswitchingcode為DATA、WATCH保留RAMENDRAM_START*0x1000DATASIZ64邏輯空間中段的內(nèi)容（Small模式）byseveralstacksorremappinginRAM(Watchsegment,InterruptVector)Byspecialfunctionsorkeywords(Assemblyfunction)邏輯空間中段的內(nèi)容（Small模式）byseverals65代碼和數(shù)據(jù)位置的調(diào)整#classoptionrootxdataxmemxstringroot2xmem(),xmem2root(),xmem2mem()#ximport代碼和數(shù)據(jù)位置的調(diào)整#classoption66自定制的存儲(chǔ)映射（BIOS的修改）DATAORGWATCHCODESIZE更改映射#defineDATASEGVAL0x91

#rvarorgrootdata(DATASEGVAL)0xc5ff0x6600apply//growsdown

#rcodorgrootcode0x000x00000x6000apply

#wcodorgwatcode(DATASEGVAL)0xc6000x0400apply

#xcodorgxmemcode0xf80xe0000x1a000apply

//datadeclarationsstarthere

只能編譯成.bin文件自定制的存儲(chǔ)映射（BIOS的修改）DATAORG#defin67文件系統(tǒng)的支持邁向完整的系統(tǒng)文件系統(tǒng)的支持邁向完整的系統(tǒng)68FS2與FAT系統(tǒng)的概念對(duì)應(yīng)FS2系統(tǒng)：BIOS中預(yù)留的空間LogicalextentLogicalsectorMetadataFilenumber/Filename（1~255）FAT系統(tǒng)：DiskDiskpartition簇Directoryentry—FATFilenameFS2與FAT系統(tǒng)的概念對(duì)應(yīng)FS2系統(tǒng)：FAT系統(tǒng)：69FS2的使用“安裝”物理空間

修改XMEM_RESERVE_SIZE、FS2_RAM_RESERVE或定義FS2_USE_PROGRAM_FLASH“分區(qū)”

fs_get_flash_lx、fs_get_other_lx、fs_get_ram_lx初始化（第一次使用）fs_init()格式化lx_format()

FS2的使用“安裝”物理空間70FS2使用的注意事項(xiàng)各個(gè)宏定義及存儲(chǔ)器中空間的分配堆棧的使用

fs2.lib中默認(rèn)堆棧為2048bytes；LS倍增時(shí)約多用100bytes的堆?？臻g讀寫時(shí)間

512LS時(shí)，fs_init()耗時(shí)2秒可重入性Errornumber大部分與POSIX一致FS2使用的注意事項(xiàng)各個(gè)宏定義及存儲(chǔ)器中空間的分配71μC/OS-IIreal-timeoperatingsystem--Z-WORLD系統(tǒng)的基石μC/OS-II72系統(tǒng)開發(fā)面臨的挑戰(zhàn)市場(chǎng)發(fā)展技術(shù)進(jìn)步開發(fā)時(shí)間系統(tǒng)穩(wěn)定性系統(tǒng)復(fù)雜度系統(tǒng)開發(fā)系統(tǒng)開發(fā)面臨的挑戰(zhàn)市場(chǎng)發(fā)展技術(shù)進(jìn)步開發(fā)時(shí)間系統(tǒng)穩(wěn)定性系統(tǒng)復(fù)雜73使用RTOS的利弊優(yōu)點(diǎn):有利于系統(tǒng)建模良好的響應(yīng)時(shí)間程序模塊化方便的數(shù)據(jù)封裝缺點(diǎn):系統(tǒng)占用一定資源調(diào)試難度加大使用RTOS的利弊優(yōu)點(diǎn):缺點(diǎn):74μC/OS-II的定位及性能特點(diǎn)實(shí)時(shí)內(nèi)核*（20MHz)

單進(jìn)程多線程64個(gè)優(yōu)先級(jí)（系統(tǒng)使用8個(gè)）ServiceTime獲得信號(hào)量10μs釋放信號(hào)量6~38μs任務(wù)切換17~35μs寫數(shù)據(jù)到隊(duì)列49~68μs讀數(shù)據(jù)到隊(duì)列12~38μs創(chuàng)建任務(wù)158μs注銷任務(wù)36~57μsμC/OS-II的定位及性能特點(diǎn)實(shí)時(shí)內(nèi)核75RTOS環(huán)境中的開發(fā)Dataprocessingfunctions時(shí)間觸發(fā)子系統(tǒng)輸入輸出初始化任務(wù)狀態(tài)圖（事件觸發(fā)）硬件平臺(tái)軟件平臺(tái)外設(shè)RTOS環(huán)境中的開發(fā)Dataprocessingfunc76應(yīng)用實(shí)例—埋入式液罐監(jiān)測(cè)系統(tǒng)系統(tǒng)性能概述：1.監(jiān)測(cè)8個(gè)油罐的罐內(nèi)溫度和液位;2.根據(jù)溫度和液位計(jì)算罐內(nèi)狀態(tài).異常時(shí)報(bào)警;3.人機(jī)界面:4*4的鍵盤、20個(gè)字符的LCD和熱敏微型打印機(jī);4.報(bào)警鈴(鍵盤控制停止報(bào)警).應(yīng)用實(shí)例—埋入式液罐監(jiān)測(cè)系統(tǒng)系統(tǒng)性能概述：77細(xì)化時(shí)間需求讀入模擬量間隔時(shí)間:10-1s對(duì)按鍵的響應(yīng)時(shí)間:10-1s模擬量計(jì)算時(shí)間:秒級(jí)液罐溢出或泄露的判定時(shí)間:102s打印速率:2~3行/s報(bào)告長(zhǎng)度:30~59行打印機(jī)每次處理一行數(shù)據(jù)細(xì)化時(shí)間需求讀入模擬量間隔時(shí)間:10-1s78劃分任務(wù)任務(wù)優(yōu)先級(jí)創(chuàng)建任務(wù)原因處理液位任務(wù)低“日?！比蝿?wù)處理溢出和泄漏任務(wù)高關(guān)鍵任務(wù)鍵盤處理任務(wù)高控制系統(tǒng)狀態(tài)顯示處理任務(wù)高有不同的消息傳遞到此任務(wù)打印處理任務(wù)中處理時(shí)間過(guò)長(zhǎng)劃分任務(wù)任務(wù)優(yōu)先級(jí)創(chuàng)建任務(wù)原因處理液位任務(wù)低“日常”任務(wù)處理79任務(wù)狀態(tài)圖LevelcalculationtaskButtoncommandtaskPrinterFormattingtaskDisplaytaskOverflowDetectiontaskFloatreadingmoduleTimerinterruptroutineButtoninterruptroutinePrinterinterruptroutineLeveldatamoduleFloatinterruptroutineRTOS傳遞的消息其它任務(wù)激活PrinterLCD任務(wù)狀態(tài)圖LevelButtonPrinterDispl80TCP/IP編程(Pre7.30)--Z-world系統(tǒng)騰飛的雙翅TCP/IP編程(Pre7.30)--Z-world系統(tǒng)騰81TCP/IPandHardware

HowapackettravelsthroughtheNetworkLayers)

ApplicationsPacketPacketPacketPacketPacketTCPUDPIPHardwareLayerApplicationTransportNetworkPhysical&DataLinkTCP/IPandHardware

Howapack82DynamicC支持的協(xié)議IP:InternetProtocolTCP:TransmissionControlProtocolUDP:UserDatagramProtocolFTP:FileTransferProtocolTFTP:TrivialFileTransferProtocolTelnetDNS:DomainNameSystemICMP:InternetControlMessageProtocolPPP:PointtoPointProtocolSMTP:SimpleMailTransferProtocolHTTP:HyperTextTransferProtocolPOP3:PostofficeProtocol,v3SNMP:SimpleNetworkManagementProtocolDynamicC支持的協(xié)議IP:InternetPro83TCP/IP配置pd_getaddress()讀出MAC地址宏MY_IP_ADDRESS宏MY_NETMASK宏MY_GATEWAY宏MY_NAMESERVERtcpconfigsethostid()sethostname()TCP/IP配置pd_getaddress()讀出MAC84TCP/IP動(dòng)態(tài)配置(BOOTPorDHCPClient)BOOTP/DHCPControlMacros

(在#use“dcrtcp.lib”之前)USE_DHCPDHCP_USE_BOOTPDHCP_CLASS_IDDHCP_USE_TFTPsock_init()自動(dòng)配置0:OK. 1:Ethernetpacketdriverinitializationfailed. 2:DHCPfailed,usingfallbackdefinitions. 3:DHCPfailed,nofallbacksdefined. Other:reserved.dhcp_acquire()、dhcp_release()重配置TCP/IP動(dòng)態(tài)配置(BOOTPorDHCPClie85TCP應(yīng)用（Client)#defineMY_IP_ADDRESS“25"#defineMY_NETMASK ""#definePORT180main(){tcp_Sockets;….. sock_init(); tcp_open(&s,0,ip,PORT,NULL); sock_wait_established(&s,0,NULL,&status); sock_mode(&s,TCP_MODE_ASCII); while(tcp_tick(&s)){ sock_wait_input(&s,0,NULL,&status); if(sock_gets(&s,buffer,2048))printf("%s\n",buffer); }sock_err:…..}TCP應(yīng)用（Client)#defineMY_IP_ADD86TCP應(yīng)用（Server)#defineMY_IP_ADDRESS“25"#defineMY_NETMASK""#definePORT123tcp_Socketechosock;main(){…….sock_init(); while(1){ tcp_listen(&echosock,PORT,0,0,NULL,0); sock_wait_established(&echosock,0,NULL,&status); sock_mode(&echosock,TCP_MODE_ASCII); while(tcp_tick(&echosock)){…… }sock_err:…. }}TCP應(yīng)用（Server)#defineMY_IP_ADD87UDP應(yīng)用（Server&Client)sock_init()Udp_open(P1,P2,P3,P4)

PARAMETER1:socketPARAMETER2:localportPARAMETER3:acceptableremoteip,0toconnectonfirstdatagram,-1 forall(resolve(“55”))PARAMETER4:acceptableremoteport,0toconnectonfirstdatagramPARAMETER5:functiontocallwhendataisreceived,NULLforplacingdatainthesocket'sreceivebuffer.Udp_send()、udp_recv()….UDP應(yīng)用（Server&Client)sock_in88DNS應(yīng)用(Client)#defineMY_NAMESERVER resolve()Non-blockingDNS查詢r(jià)esolve_name_start()resolve_name_check()resolve_cancel()其他區(qū)域DNSserver緩存DNSserverDNS解析器緩存ApplicationDNS應(yīng)用(Client)#defineMY_NAMESE89ZSERVER.LIB（HTTP&FTPserver工具庫(kù)）DataStructure：ServerSprc(FormVar):可傳輸對(duì)象列表ServerAuth：用戶列表Constants:以上結(jié)構(gòu)體中的參數(shù)和下面函數(shù)的返回值；數(shù)據(jù)類型定義；服務(wù)器類型定義和參數(shù)Functions：對(duì)以上結(jié)構(gòu)體的設(shè)定、修改和讀取參數(shù)ZSERVER.LIB（HTTP&FTPserver工具90HTTPServer的應(yīng)用應(yīng)用程序處理Http消息使用HTTP.LIB的http_handler()HttpSpec:Webserver提供的文件、變量、函數(shù)HttpType:處理文件的連接HttpRealm:HttpSpec中的需認(rèn)證的資源HttpState:CGI函數(shù)接口HTTPServer的應(yīng)用應(yīng)用程序處理Http消息91HTTPServer實(shí)現(xiàn)#defineMY_IP_ADDRESS"00"#defineMY_NETMASK""#use"dcrtcp.lib"#use"http.lib"main(){sock_init();http_init();tcp_reserveport(80);while(1){http_handler();}}HTTPServer實(shí)現(xiàn)#defineMY_IP_AD92HTTPServer示例1靜態(tài)頁(yè)面#ximport"samples/tcpip/http/pages/static.html"index_html#ximport"samples/tcpip/http/pages/rabbit1.gif"rabbit1_gif

constHttpTypehttp_types[]={{".html","text/html",NULL},{".gif","image/gif",NULL}};constHttpSpechttp_flashspec[]={{HTTPSPEC_FILE,"/",index_html,NULL,0,NULL,NULL},{HTTPSPEC_FILE,"/index.html",index_html,NULL,0,NULL,NULL},{HTTPSPEC_FILE,"/rabbit1.gif",rabbit1_gif,NULL,0,NULL,NULL},};HTTPServer示例1靜態(tài)頁(yè)面#ximport93HTTPServer示例2動(dòng)態(tài)刷新constHttpTypehttp_types[]={{".shtml","text/html",shtml_handler},//ssi{".html","text/html",NULL},//html{".cgi","",NULL},