LAXDK4.1P是多功能數(shù)字處理器,所有功能都通過雙DSP處理實(shí)現(xiàn)。獨(dú)立處理芯片實(shí)現(xiàn)全功能的參量均衡,精確分頻,輸出限幅。內(nèi)置一個(gè)DSP效果器,包含兩個(gè)獨(dú)立的可編程引擎,分別處理回聲、混響效果,實(shí)現(xiàn)無窮的效果組合。并且提供精確快速的反饋抑制功能。3路線路輸入、背景音樂(BGM)功能,并帶有同步視頻切換。音樂通道配置7段全參量均衡適應(yīng)千變?nèi)f化的應(yīng)用環(huán)境。話筒通道7段全參量均衡,配合優(yōu)質(zhì)話放電路帶來清晰干凈的演唱效果。超低音分頻實(shí)現(xiàn)斜率、濾波器、上下限頻點(diǎn)的全部可調(diào),并配置3段參量均衡使調(diào)試更得心應(yīng)手。獨(dú)立中置輸出通道,輸出話筒直達(dá)聲,并配置3段參量均衡大大提升演唱人聲的表現(xiàn)能力。
上傳時(shí)間: 2013-10-26
上傳用戶:herog3
該系統(tǒng)由單片機(jī)89S52控制模塊,程控寬帶放大模塊,整形模塊,F(xiàn)PGA內(nèi)頻率、相位差測量模塊等構(gòu)成,采用等精度測頻法測出頻率和周期,可測量有效值為0.01~5V,頻率范圍1Hz~20MHz信號的頻率、周期信號,精度高達(dá)10-6。采用計(jì)數(shù)法測量相位差,該系統(tǒng)可測量有效值0.5~5V,頻率10Hz~100kHz信號的相位差,精度為1°。系統(tǒng)功能由按鍵控制,測量結(jié)果實(shí)時(shí)顯示,人機(jī)界面友好。 Abstract: The system consists of the following functional blocks:89S52microcontroller controlling module,programmable amplifier module,comparator module,frequency and phase difference testing module in the FPGA.The system use the equal accuracy frequency-examining technique it measures frequency and circle of signal which its ranges is from1Hz to20MHz and the amplitude of which its range is from0.01Vrms to5Vrms,precision is up to10-6.Using of count method,the system detects the phase difference of signal,the amplitude of whic its range is from0.5Vrms to5Vrms and the frequency of which its ranges is from10Hz to100kHz,precision is up to1°,The system functions is controlled by certain keys,measurement results are displayed in real-time and it is friendly interface.
標(biāo)簽: 89S52 單片機(jī) 多功能 計(jì)數(shù)器
上傳時(shí)間: 2013-11-04
上傳用戶:CHINA526
以89S52單片機(jī)和EP1C6Q240C8型FPGA為控制核心的多功能計(jì)數(shù)器,是由峰值檢波、A/D轉(zhuǎn)換、程控放大、比較整形、移相網(wǎng)絡(luò)部分組成,可實(shí)現(xiàn)測量正弦信號的頻率、周期和相位差的功能。多功能計(jì)數(shù)器采用等精度的測量方法,可實(shí)現(xiàn)頻率為1Hz~10MHz、幅度為0.01~5Vrms的正弦信號的精確測頻,以及頻率為10Hz~100kHz、幅度為0.5~5Vrms的正弦信號精確測相。液晶顯示器能夠?qū)崟r(shí)顯示當(dāng)前信號的頻率、周期和相位差。該多功能計(jì)數(shù)器精度高,界面友好,實(shí)用性強(qiáng)。 Abstract: A multi-function counter,which uses89S52MCU and EP1C6Q240C8FPGA as a control core,consists of peak detector,A/D conversion,program-controlled amplification,compared shaping and phase-shifting network part.The counter measures the frequency,period and phase of sinusoidal signal.With the equal precision method,the multi-function counter achieves the precise frequency measurement of the sinusoidal signal which its frequency is from1Hz to10MHz,its amplitude is from0.01Vrms to5Vrms,as well as the accurate phase measurement of the sinusoidal signal which its frequency is from10Hz to100kHz,its amplitude is from0.5Vrms to5Vrms.The LCD monitor real-time displays the frequency,period and phase difference of current signal.The multi-function counter features high precision,friendly interface,and strong practical.
標(biāo)簽: FPGA 單片機(jī) 多功能 計(jì)數(shù)器
上傳時(shí)間: 2013-11-15
上傳用戶:gy592333
介紹一種多功能音樂播放器,它是以AT89S52單片機(jī)為核心,并輔有一些外圍器件,采用匯編語言編寫程序,實(shí)現(xiàn)多功能音樂播放,歌曲自動(dòng)循環(huán)播放和使用琴鍵自編曲目功能。此外,彩燈顯示歌曲節(jié)奏,按鍵跳轉(zhuǎn)到喜愛曲目,液晶顯示當(dāng)前播英文曲目。并給出了系統(tǒng)軟硬件設(shè)計(jì)。 Abstract: It introduces a multifunctional music player,taking AT89S52 single-chip microcomputer as hardware control core and using some peripheral elements.Programmes are compiled in assembly language to act as expected.There are two functional modes in this system.One is to make the music play automatically and consecutively,the other is to compose new songs through keys.In addition,lights show the pace of music and the English names can be displayed in the liquid crystal screen.With perfect combination of hardware and software,the music player can meet many music lovers’needs for multifunctional music player.And the hardware and software of the system are given.
上傳時(shí)間: 2013-11-18
上傳用戶:xiaodu1124
在嵌入式系統(tǒng)中,嵌入式CPU往往要通過各種串行數(shù)據(jù)總線與“外界”進(jìn)行通信。在應(yīng)用中,異步的串行數(shù)據(jù)通信用得較多,而通用異步收發(fā)器UART(Universal Asynchronous Receiver Transmitter)在其中扮演著重要角色:完成數(shù)據(jù)的串并轉(zhuǎn)換,即把并行數(shù)據(jù)按照通信波特率轉(zhuǎn)化為通信協(xié)議中規(guī)定的串行數(shù)據(jù)流,也可從串行數(shù)據(jù)流中取出有用數(shù)據(jù)轉(zhuǎn)變?yōu)椴⑿袛?shù)據(jù)。而UART與CPU接口簡單,CPU只需通過執(zhí)行讀寫操作即可完成收發(fā)數(shù)據(jù),從而完成與外界的通信。有許多現(xiàn)成的芯片可以實(shí)現(xiàn)UART的功能,如常用的Intel8250/8251接口芯片就可以作為RS232、RS422串口的UART控制芯片。
上傳時(shí)間: 2013-11-25
上傳用戶:www240697738
本系統(tǒng)的設(shè)計(jì)電路以凌陽單片機(jī)SPCE061A作為控制器。主要由顯示電路, 功能控制電路、傳感器電路、電壓轉(zhuǎn)換電路、遙控電路五部分。吸收了硬件軟件化的思想,大部分功能通過軟件來實(shí)現(xiàn),使電路簡單明了,系統(tǒng)穩(wěn)定性大大提高。本系統(tǒng)不僅成功的實(shí)現(xiàn)了要求的基本功能,發(fā)揮部分也得到完全的實(shí)現(xiàn),而且有一定的創(chuàng)新功能。
標(biāo)簽: SPCE 061A 061 單片機(jī)
上傳時(shí)間: 2013-11-21
上傳用戶:1966640071
用Verilog實(shí)現(xiàn)8255芯片功能
上傳時(shí)間: 2013-10-31
上傳用戶:sunjet
本文是介紹給那些對ISP功能不是很熟悉且想快速了解和應(yīng)用ISP功能的用戶什么是ISP功能ISP功能的優(yōu)點(diǎn)怎樣應(yīng)用ISP功能PHILIPS公司的幾種具有ISP功能的單片機(jī)的介紹周立功公司的ISP編程器介紹
標(biāo)簽: PHILIPS ISP 單片機(jī) 快速入門
上傳時(shí)間: 2013-12-04
上傳用戶:chendawei
51單片機(jī)多功能實(shí)驗(yàn)板
標(biāo)簽: 51單片機(jī) 多功能 實(shí)驗(yàn)板
上傳時(shí)間: 2014-01-23
上傳用戶:shinesyh
摘要:針對目前醫(yī)院病房監(jiān)護(hù)系統(tǒng)落后,大多仍依靠人工查房的現(xiàn)狀,利用虛擬儀器軟件LabVIEW和單片機(jī)系統(tǒng),研制了一套多功能多參數(shù)病房監(jiān)護(hù)系統(tǒng)。該系統(tǒng)利用單片機(jī)作為下位機(jī),采集病人體征數(shù)據(jù)并通過串行通信口上傳到上位機(jī);上位機(jī)采用LabVIEW完成對上傳數(shù)據(jù)的處理和圖形顯示,使醫(yī)生在值班就可掌握病人體征參數(shù),及時(shí)做出正確判斷。經(jīng)模擬運(yùn)行證明,該系統(tǒng)使用方便,測量快速準(zhǔn)確,可靠性強(qiáng)。關(guān)鍵詞:LabVIEW 單片機(jī) 串行通信 傳感器
標(biāo)簽: LabVIEW 單片機(jī) 多功能 病房監(jiān)護(hù)
上傳時(shí)間: 2013-10-14
上傳用戶:gengxiaochao
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