本系統采用調頻方式實現了主站至從站的單工語音及數據傳輸業務。發射機以單片機SPCE061A為核心,采用MC145151鎖相環完成FM調制等功能;接收機采用CXA1691完成FM解調功能;引入雙音頻編解碼完成數據傳輸;利用市售紅外遙控器實現了發射機英文字符的輸入。
上傳時間: 2017-06-03
上傳用戶:bibirnovis
“This book is a tremendous achievement. You owe it to yourself to have a copy on your shelf. The chapter on iostreams is the most comprehensive and understandable treatment of that subject I’ve seen to date.”
標簽: achievement tremendous yourself shelf
上傳時間: 2017-06-12
上傳用戶:270189020
這是一個萬年歷查算干支法的文檔,含程序,對于用周易預測股票的朋友很有幫助。
上傳時間: 2013-12-23
上傳用戶:siguazgb
This manual describes SAMSUNG s S3C2410A 16/32-bit RISC microprocessor. This product is designed to provide hand-held devices and general applications with cost-effective, low-power, and high-performance micro-controller solution in small die size. To reduce total system cost, the S3C2410A includes the following components separate 16KB Instruction and 16KB Data Cache, MMU to handle virtual memory management, LCD Controller (STN & TFT), NAND Flash Boot Loader, System Manager (chip select logic and SDRAM Controller), 3-ch UART, 4-ch DMA, 4-ch Timers with PWM, I/O Ports, RTC, 8-ch 10-bit ADC and Touch Screen Interface, IIC-BUS Interface, IIS-BUS Interface, USB Host, USB Device, SD Host & Multi-Media Card Interface, 2-ch SPI and PLL for clock generation.
標簽: This microprocessor describes S3C2410A
上傳時間: 2013-11-30
上傳用戶:GavinNeko
別人易語言看股票源碼,編譯之后可以運行的系統,可作股票行情軟件開發的參考
上傳時間: 2013-12-25
上傳用戶:shinesyh
introduce the reader to the fundamentals of modelling, analysis, and simulation of mobile fading channels
標簽: fundamentals simulation introduce the
上傳時間: 2013-12-20
上傳用戶:bruce
管理首選:前臺首頁、后臺首頁、修改密碼、退出管理 商品管理:添加商品、管理商品、類別管理、品牌設置、材質管理、單位管 理、供貨商添加、供貨商管理、商品評論管理、缺貨商品管理、下架商品管理 財務管理:訂單管理、用戶積分管理、積分變動日志 銷售管理:整體銷售統計、商品銷售排名、商品訪問排名、分類訪問排名、會 員消費額排名 用戶管理:會員管理、管理員設置、會員等級管理、等級申請審核 信息管理:站內短信發布、站內短信管理、廣告管理、新聞添加、新聞修改、 公告管理、VIP方案設置、其它信息設置、友情鏈接管理、會員郵件列表 系統管理:商城基本設置、支付方式管理、配送方式管理、客服QQ設置、在線 投票設置、所在省信息庫、所在市信息庫 系統數據維護:系統數據備分、恢復、壓縮
上傳時間: 2017-06-22
上傳用戶:nanshan
File: dir.h ScanOneDirectorySector(unsigned long sector, char *name) extern void MakeFileName(char *inname, char *outname) ScanOneDirectorySector(unsigned long sector, char *name) extern void MakeFileName(char *inname, char *outname)
標簽: ScanOneDirectorySector MakeFileName unsigned extern
上傳時間: 2014-12-04
上傳用戶:hn891122
File: dir_39 canOneDirectorySector(unsigned long sector, char *name) extern void MakeFileName(char *inname, char *outname) ScanOneDirectorySector(unsigned long sector, char *name) extern void MakeFileName(char *inname, char *outname)
標簽: canOneDirectorySector MakeFileName unsigned extern
上傳時間: 2014-01-20
上傳用戶:894898248
client socket include <sys/types.h> include <sys/socket.h> include <stdio.h> include <netinet/in.h> include <arpa/inet.h> include <unistd.h> int main() { int sockfd int len struct sockaddr_in address int result char ch = A sockfd = socket(AF_INET, SOCK_STREAM, 0) address.sin_family = AF_INET address.sin_addr.s_addr = inet_addr("127.0.0.1") address.sin_port = 9734 len = sizeof(address) result = connect(sockfd, (struct sockaddr *)&address, len) if(result == -1) { perror("oops: client") exit(1) } write(sockfd, &ch, 1) read(sockfd, &ch, 1) printf("char from server = c\n", ch) close(sockfd) exit(0) }
上傳時間: 2017-07-29
上傳用戶:wab1981