I/O并行口直接驅動LED顯示1. 實驗任務 如圖13所示,利用AT89S51單片機的P0端口的P0.0-P0.7連接到一個共陰數(shù)碼管的a-h(huán)的筆段上,數(shù)碼管的公共端接地。在數(shù)碼
上傳時間: 2013-06-15
上傳用戶:kytqcool
介紹了Infineon(英飛凌)公司DAVE2.O軟件的使用方法和一些需注意的要點,并按照流程編寫了一個“Infineon XC164CM”的閃燈測試程序
上傳時間: 2013-07-13
上傳用戶:牛布牛
]本文介紹了如何利用CPLD(復雜可編程邏輯器件)與單片機的結合實現(xiàn)并行I/\r\nO(輸入/輸出)接口的擴展。該設計與用8255做并行I/O接口相比,與單片機軟件完全兼容,\r\n同時擁有速度快,功耗低,價格便宜,使用靈活等特點
上傳時間: 2013-08-14
上傳用戶:xa_lgy
:針對現(xiàn)場可編程門陣列(FPGA)芯片的特點,研究FPGA中雙向端口I/O的設計,同時給出仿真初始化雙向端口I/O的方法。采用這種雙向端口的設計方法,選用Xilinx的Spartan2E芯片設計一個多通道圖像信號處理系統(tǒng)。
上傳時間: 2013-08-17
上傳用戶:xiaoyunyun
Dongle泛指任何能插到電腦上的小型硬體,PC TV dongle則是用來在PC上觀看電視節(jié)目所用的擴充裝置。一般來說,依照採用的電視訊號規(guī)格,PC TV dongle可區(qū)分成兩大類:若使用的訊源為數(shù)位訊號,則屬於數(shù)位PC TV dongle;若使用的是類比訊號,則屬於類比PC TV dongle。全球各地皆有不同的採納階段,且推行的廣播標準也不盡相同。
上傳時間: 2013-12-12
上傳用戶:lifangyuan12
Recent advances in low voltage silicon germaniumand BiCMOS processes have allowed the design andproduction of very high speed amplifi ers. Because theprocesses are low voltage, most of the amplifi er designshave incorporated differential inputs and outputs to regainand maximize total output signal swing. Since many lowvoltageapplications are single-ended, the questions arise,“How can I use a differential I/O amplifi er in a single-endedapplication?” and “What are the implications of suchuse?” This Design Note addresses some of the practicalimplications and demonstrates specifi c single-endedapplications using the 3GHz gain-bandwidth LTC6406differential I/O amplifi er.
上傳時間: 2013-11-23
上傳用戶:rocketrevenge
LAYOUT REPORT .............. 1 目錄.................. 1 1. PCB LAYOUT 術語解釋(TERMS)......... 2 2. Test Point : ATE 測試點供工廠ICT 測試治具使用............ 2 3. 基準點 (光學點) -for SMD:........... 4 4. 標記 (LABEL ING)......... 5 5. VIA HOLE PAD................. 5 6. PCB Layer 排列方式...... 5 7.零件佈置注意事項 (PLACEMENT NOTES)............... 5 8. PCB LAYOUT 設計............ 6 9. Transmission Line ( 傳輸線 )..... 8 10.General Guidelines – 跨Plane.. 8 11. General Guidelines – 繞線....... 9 12. General Guidelines – Damping Resistor. 10 13. General Guidelines - RJ45 to Transformer................. 10 14. Clock Routing Guideline........... 12 15. OSC & CRYSTAL Guideline........... 12 16. CPU
上傳時間: 2013-12-20
上傳用戶:康郎
HIGH SPEED 8051 μC CORE - Pipe-lined Instruction Architecture; Executes 70% of Instructions in 1 or 2 System Clocks - Up to 25MIPS Throughput with 25MHz System Clock - 22 Vectored Interrupt Sources MEMORY - 4352 Bytes Internal Data RAM (256 + 4k) - 64k Bytes In-System Programmable FLASH Program Memory - External Parallel Data Memory Interface – up to 5Mbytes/sec DIGITAL PERIPHERALS - 64 Port I/O; All are 5V tolerant - Hardware SMBusTM (I2CTM Compatible), SPITM, and Two UART Serial Ports Available Concurrently - Programmable 16-bit Counter/Timer Array with 5 Capture/Compare Modules - 5 General Purpose 16-bit Counter/Timers - Dedicated Watch-Dog Timer; Bi-directional Reset CLOCK SOURCES - Internal Programmable Oscillator: 2-to-16MHz - External Oscillator: Crystal, RC, C, or Clock - Real-Time Clock Mode using Timer 3 or PCA SUPPLY VOLTAGE ........................ 2.7V to 3.6V - Typical Operating Current: 10mA @ 25MHz - Multiple Power Saving Sleep and Shutdown Modes 100-Pin TQFP (64-Pin Version Available) Temperature Range: –40°C to +85°C
標簽: C8051F020
上傳時間: 2013-10-12
上傳用戶:lalalal
常用主板I/O芯片簡介
上傳時間: 2013-11-10
上傳用戶:yupw24
〔摘要〕介紹了幾種通過單片機1/O口鍵盤擴展的方法。主要探討了幾種采用較少的1/O口實現(xiàn)較多按鍵的方法。〔關鍵詞〕單片機;1/O口;鍵盤擴展
上傳時間: 2013-10-31
上傳用戶:jkhjkh1982