XRP7714是一款四輸出脈寬調制(PWM)分級降壓(step down)DC-DC控制器,并具有內置LDO提供待機電源。該器件在單個IC上為電池供電的產品提供了整套的電源管理方案,并且通過內含的I2C串行接口進行整體的編程配置
上傳時間: 2013-11-01
上傳用戶:xiaohuanhuan
針對面粉加工業對小麥硬度精密檢測的需要,提出了基于ARM的小麥硬度檢測控制器的設計方案。為提高系統的實時性和控制精度,對小麥硬度檢測的任務進行了合理分解。根據系統功能,對控制器的各個部分進行了模塊化設計,分別介紹了功能模塊的實現和各個模塊的通信方式及伺服電機控制方法的實現。經測試小麥硬度檢測控制器的成本低、攜帶方便、穩定性好,應用前景廣闊。
上傳時間: 2013-11-12
上傳用戶:1234567890qqq
The NXP LPC314x combine a 270 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, three channel10-bit A/D, and a myriad of serial and parallel interfaces in a single chip targeted atconsumer, industrial, medical, and communication markets. To optimize system powerconsumption, the LPC314x have multiple power domains and a very flexible ClockGeneration Unit (CGU) that provides dynamic clock gating and scaling.
上傳時間: 2013-10-11
上傳用戶:yuchunhai1990
The LPC1850/30/20/10 are ARM Cortex-M3 based microcontrollers for embeddedapplications. The ARM Cortex-M3 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC1850/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals. The ARMCortex-M3 CPU also includes an internal prefetch unit that supports speculativebranching.The LPC1850/30/20/10 include up to 200 kB of on-chip SRAM data memory, a quad SPIFlash Interface (SPIFI), a State Configuration Timer (SCT) subsystem, two High-speedUSB controllers, Ethernet, LCD, an external memory controller, and multiple digital andanalog peripherals.
上傳時間: 2014-12-31
上傳用戶:zhuoying119
PE管道熱熔對接焊的工藝參數隨管道尺度和環境條件的不同而不同,同時還受人為因素的影響,對焊接機自動化程度要求很高。介紹了基于ARM嵌入式熱熔焊接機智能控制器的硬件和軟件的設計方案。此方案符合焊接各個階段工藝參數指標,并具有操作糾錯及錯誤信息管理功能,最大程度地消除了人為因素的影響,提高焊接質量,并具備焊接數據的可追溯性,便于管理人員對焊接工程的管理。
上傳時間: 2014-12-31
上傳用戶:515414293
The NXP LPC315x combine an 180 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, an integratedaudio codec, Li-ion charger, Real-Time Clock (RTC), and a myriad of serial and parallelinterfaces in a single chip targeted at consumer, industrial, medical, and communicationmarkets. To optimize system power consumption, the LPC315x have multiple powerdomains and a very flexible Clock Generation Unit (CGU) that provides dynamic clockgating and scaling.The LPC315x is implemented as multi-chip module with two side-by-side dies, one fordigital fuctions and one for analog functions, which include a Power Supply Unit (PSU),audio codec, RTC, and Li-ion battery charger.
上傳時間: 2014-01-17
上傳用戶:Altman
NAND FLASH 讀寫控制以及ECC的VHDL源程序
上傳時間: 2013-10-13
上傳用戶:003030
Adobe Flash Player Plugin_11.2\游戲、農場、視頻
上傳時間: 2014-01-17
上傳用戶:會稽劍客
Adobe Flash Player Plugin_11.2\游戲、農場、視頻
上傳時間: 2013-11-05
上傳用戶:199311
介紹了一種基于FPGA的多軸控制器,控制器主要由ARM7(LPC2214)和FPGA(EP2C5T144C8)及其外圍電路組成,用于同時控制多路電機的運動。利用Verilog HDL 硬件描述語言在FPGA中實現了電機控制邏輯,主要包括脈沖控制信號產生、加減速控制、編碼器反饋信號的辨向和細分、絕對位移記錄、限位信號保護邏輯等。論文中給出了FPGA內部一些核心邏輯單元的實現,并利用Quartus Ⅱ、Modelsim SE軟件對關鍵邏輯及時序進行了仿真。實際使用表明該控制器可以很好控制多軸電機的運動,并且能夠實現高精度地位置控制。
上傳時間: 2013-10-13
上傳用戶:lchjng