在线座谈

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主题:FPGA DSP 解决方案
在线问答:
[问:sunyouth .song] 如何根据已知的性能指标要求,选择最优结构(资源耗费最少/速度最快)的FIR滤波器设计? 
[答:Altera Expert] you can read the related document, especially those on filter design, also if you use altera FIR compiler IP core,please read the FIR compiler user guide on how to use this IP, then you can select the available architectures of FIR filter.  [2003-12-10 10:35:47]
[问:sunnyday] FPGA做DSP应用中的输入数据一般怎样得到?是直接通过AD采集还是通过其它控制IC发送。如果是通过其它控制IC,如何做FPGA与这个IC的通讯? 
[答:Altera Expert] 目前Altera的FPGA不支持AD采集,需要外挂设备,通讯完全由工程师灵活自行设计,通讯方式依赖于所使用的AD器件。  [2003-12-10 10:37:14]
[问:cwschina] 我正计划设计一套视觉系统,希望使用FPGA DSP,请问Altera公司是否能给我提供一些参考方案?谢谢! 
[答:Altera Expert] currently no such reference design, but you visit altera website for the related information  [2003-12-10 10:37:20]
[问:lwz3968] 请问:在最新的《FPGA DSP 解决方案》中,是否能全部支持在线快速编程?亦或仅有部分支持上述方式?  如何快速获得 Altera 的最新资讯? 
[答:Altera Expert] 可以全部支持在线快速编程,获得Altera的最新资讯请登陆Altera网站。  [2003-12-10 10:38:48]
[问:tangyp] 贵公司一般FPGA开发平台能否用于开发PPGA DSP。 
[答:Altera Expert] 可以,我们提供一系列的关于DSP的IP Core, 客户可以直接应用这些IP Core,也可以用我们的FPGA来做DSP的开发和验证  [2003-12-10 10:39:24]
[问:yeding sheng503] 贵公司现在提供了那些IP核?付费不?还有,自己开发的模块想作成IP核,需要怎样加密? 
[答:Altera Expert] We have different kind of IP cors on Telecommunication, Datacommunication, interface, data bus ... please let me know what kind of IP do you want ??? My email address: horace@cytech.comOur IP cores including from Altera own development and our partners ( AMPP ), so when you let me know your IP cores, we can further discuss on it.  [2003-12-10 10:39:35]
[问:rorman] 在FPGA的DSP设计中,C语言最终会代替HDL吗/ 
[答:Altera Expert] 目前来说还不能,因为目前的HDL的综合效率还是要比HDL好,但是以后的发展趋势还是有可能向C语言这样的高级语言过渡。  [2003-12-10 10:41:42]
[问:liwanggao] EPM7000S系列在I/O口用作双向口时,应如何设置?在输入输出切换时,是否一定要用一个外部I/O口作为输出使能,能否用一个内部信号作为输出使能?    
[答:Altera Expert] 在QuartusII开发平台中,设计者只需定义该I/O为双向口,Qii将自动例化一个输出三态buffer,可以使用内部信号或专用使能信号作为输出使能。  [2003-12-10 10:41:44]
[问:Panh2000] 请教专家一下几个问题:1.目前, FPGA和DSP结合使用的解决方案在家庭用户中的使用情况有什么样的趋势?2.FPGA与DSP的结合使用与带FPGA的嵌入式应用系统有何区别?3.FPGA和DSP的最新开发应用工具有些什么样的变化?谢谢!潘洪亮2003。12。02 
[答:Altera Expert] 1. this question is so big, I think FPGA and DSP will be known by more and more engineers2.as I say during the presentation, we will use FPGA to do the specific job, while our NIOS embedded system will do the controlling job3.altera provide total tools, SOPC builder will be reponsible for embedded system design, dspbuilder will be responsible for dsp algorithm designs  [2003-12-10 10:41:44]
[问:aihuazou] How Can I get the license of the Dsp builder 
[答:Altera Expert] If you buy altera dsp dev. Kit(demo board), you can subscribe a license from altera website  [2003-12-10 10:42:40]
[问:jack.a.xu] Is it the FIR filter design VHDL code availble ?Pls send to me,thank u! 
[答:Altera Expert] no, it is altera IP core  [2003-12-10 10:43:26]
[问:liberal2002] 请在座谈中关注一下FPGA和DSP在软件无线电中的应用和一些解决方案。谢谢 
[答:Altera Expert] OK !没有问题。如果您有这方面的疑问可以向我们提出问题。  [2003-12-10 10:44:21]
[问:jasoncsh] 请问有没有加入用户模块时应注意的问题 
[答:Altera Expert] 用户只需将自己设计的模块放置在本工程的目录下,上层模块调用该用户模块时能够自动搜索到设计文件。  [2003-12-10 10:44:25]
[问:cwschina] 我是一位非常忠实于Altera公司产品的教师,我从Max_plusII开始教学,现在已经在用QuartusII,我计划写一本关于QuartusII的中文书,不知Altera公司能否同意,可以给我提供哪些帮助? 
[答:Altera Expert] 我们该有合作机会的, 请联络 sopcworldasia@altera.com 我们会尽力配合的.谢谢!  [2003-12-10 10:45:54]
[问:tomyaoyuan] 请问在Altera 的FPGA上是否有视频编码算法,如h.263,mpeg4等,实现的成功案例?FPGA平台实现视频编码有什么优势和难度? 
[答:Altera Expert] ALTERA and AMPP(3rd vendor) can provide a lot of IP cores, or turn to altera design services.go to http://www.altera.com/products/design_services/dsv-index.htmland http://www.altera.com/products/ip/ipm-index.html for more information  [2003-12-10 10:46:18]
[问:kadial] nois和dsp Block是什么关系呀? 
[答:Altera Expert] NIOS是我们提供给客户使用的一个软核的RISC的CPU, DSP Block 只是我们在stratix FPGA中设计的一个用于dsp处理的乘加-累加器  [2003-12-10 10:47:02]
[问:liqiang123456] 有没有提供强大的FPGA软件算法支持?例如现成的IP包等等 
[答:Altera Expert] ALTERA provide more than 60 DSP IP cores, as I said during the presentation  [2003-12-10 10:47:09]
[问:amaosonic] 目前,在FPGA中集成cpu,dsp成了业界趋势,请专家们评估一下这方面的未来形势 
[答:Altera Expert] FPGA的设计目标越来越趋向于片上系统SOPC,在一个单板上一片FPGA集CPU、DSP、用户逻辑于一体,大大减小单板面积,降低成本。  [2003-12-10 10:48:22]
[问:zmeng] Altera公司设计DSP系统体系,比其它公司有哪些突出的优点? 
[答:Altera Expert] as I said during the presentation, our DSP solution is a complement to the traditional dsp solution, customer can use our FPGA to design his system freely, not like other dsp solution, you are dependent on what these dsp vendors can provide  [2003-12-10 10:49:13]
[问:samire] 存储器的Bit和带宽有何直接的关系? 
[答:Altera Expert] 在相同存取速度的情况下,当然是Bit位数越多,存储器的带宽就越大  [2003-12-10 10:50:35]
[问:mynews1738] 在扩频通信如WCDMA中,中频以下能否用FPGA DSP方案解决,匹配滤波器如何实现?谢谢! 
[答:Altera Expert] of course. firstly you need to generate the coefficents of this filter, then you can use FIR compiler IP core to implement such filter  [2003-12-10 10:51:10]
[问:lei] 请问能具体的解释一下FPGA与DSP的关系么? 
[答:Altera Expert] Altera的FPGA作为一个片上系统(SOPC)解决方案的物理平台,其内部集成了DSP和CPU,DSP的快速运算功能得以在FPGA里面实现。当FPGA没有DSP模块时,FPGA的优势是逻辑实现非常灵活,而DSP的优势在于数字运算。  [2003-12-10 10:51:58]
[问:hzjlili] fpga内部是并行处理的,而实际的dsp内部并行处理单元有限,还有相当多的非并行处理部分,请问fpga dsp方案在提高并行处理能力的同时,是否会导致其他的额外开销。 
[答:Altera Expert] 我们提供的是可定制的DSP CORE,DSP CORE 耗费资源的多少和系统的需求密切相关。您可定义您的需求来限定资源的消耗。对于您确定的需求不会有额外开销。  [2003-12-10 10:52:27]
[问:liwenz] 请问:你们所说的DSP解决方案是FPGA里的物理的(硬)的技术,还是通过DSP软件内核嵌入?谢谢 
[答:Altera Expert] both. our solution is not the traditional pure software solution. actually we are the so-called embedded system plus hardware co-processor.  [2003-12-10 10:52:47]
[问:32kmcu] altera的FPGA,在3.3v系统供电情况下,可以直接挂接5V系统吗?会不会有可控硅效应? 
[答:Altera Expert] 这个要看你所选用的FPGA是否有5V的兼容性,如果有,你可以接5V的输入,但是输出你需要用极电极开路的方式驱动5V器件。具体实现方式参见具体器件的数据手册。  [2003-12-10 10:53:10]
[问:amaosonic] FPGA DSP方案,和贵公司上次提到的利用Hardcopy 开发RISC,有和联系或互补呢? 
[答:Altera Expert] FPGA DSP solution is for the customer to implement a dsp issue, while hardcopy is for the customer to convert a FPGA to hardcopy device(similar to ASIC)  [2003-12-10 10:55:52]
[问:yeding sheng503] 你们的开发软件和ACTIVE-HDL相比,有那些优点? 
[答:Altera Expert] 我们的软件可以提供给客户从代码综合,布局布线,前后仿真到器件下载配置完全的设计环境,而ACTIVE-HDL只是一个用于仿真的软件。  [2003-12-10 10:56:14]
[问:guoyong _zhou] 在300ns内,实现64点fft需要选择多少万门的FPGA? 
[答:Altera Expert] 请参考FFT的IP core ,您可得到相关的资源估计及仿真测试文件。  [2003-12-10 10:56:29]
[问:FPGA +DSP] 1、我主要想问以下FPGA的掉点配置问题,请问单片机在对FPGA的配置过程中其如何知道数据已经发送完成? 
[答:Altera Expert] 当配置完成以后,有configdone 信号指是配置完成。具体时序关系你可以从我们最新的alteta config handbook找到(这是个比较好的文档,是所有关于altera fpga 配置文档的一个总结)。http://www.altera.com/literature/lit-config.jsp  [2003-12-10 10:56:53]
[问:samire] 用FPGA设计DSP,FPGA的利用率有多高?如何选择FPGA逻辑单元的数量? 
[答:Altera Expert] Altera的FPGA内置多个DSP硬核,用户如果使用这些DSP模块,对FPGA其余的逻辑单元没有影响,依然可以作为用户逻辑使用。  [2003-12-10 10:56:58]
[问:aquazy] 如果我要在万分之一秒内完成对100个1000次乘加运算,该怎么解决?用dsp能够达到吗?用什么型号的?用fpga解决是否更好一些,fpga的开发难度大吗?应该做哪些准备工作? 
[答:Altera Expert] you can use the internal dspblock to implement the multipliers, as I told in the presentation, the performance of one dspblock is 250M MAC, then you can calculate the number of dspblocks used, later on, you check altera datasheet to find the available dspblocks for different stratix devices.  [2003-12-10 10:58:39]
[问:ljp] Stratix中最小单元延时有多长? 
[答:Altera Expert] 在FPGA的设计中,我们一般只提最大的延时有多长。另外,你所说的单元延时是指什么单元?  [2003-12-10 10:58:48]
[问:yjems] 有人说FPGA/CPLD不适合用于手持类设备,这样的说法对吗? 
[答:Altera Expert] This may not totally true, this is because the CPLD power consumption and chip size become smaller and smaller, so this could be expected to use on portable machines.  [2003-12-10 10:59:25]
[问:zzycat] 1、请举例说明FPGA DSP解决方案和传统地DSP解决方案在完成计算任务时,在代码编写上的异同。2、请以能用作DSP的最小规模的芯片为例,讲解FPGA DSP开发工具的开发流程。 
[答:Altera Expert] the traditional method is to write sw code to implement dsp algorithm, usually in C codewhile fpga dsp solution, except writing sw code, you need to implement specific algorithms in FPGA(hardware), usually in HDL(VHDL or verilog)as for your second question, you can visit altera website for more information http://www.altera.com/products/software/system/ products/dsp/dsp-builder.html  [2003-12-10 11:01:30]
[问:chenwy] 如果使用FPGA DSP设计一个大型的会议系统,是否可以提供参考设计? 
[答:Altera Expert] 我们提供您所需要的相应IP CORE及一些底层的参考设计,对于系统设计方面和您的需求密切相关,这部分内容还需要您自己完成。  [2003-12-10 11:02:45]
[问:liwenz] 请问你们的FPGA集成DSP技术,是软件嵌入,还是本身FPGA中有适合DSP运算的硬件技术?谢谢 
[答:Altera Expert] 我们的FPGA内置了DSP硬核,硬件支持DSP运算。  [2003-12-10 11:02:51]
[问:hjd0923] FPGA DSP能解决DOS操作系统的问题吗? 
[答:Altera Expert] 是否加操作系统,要看你系统的具体情况。你可以在我们FPGA中加入嵌入处理器使你的系统既有处理器的灵活性(根据需要你可以加入嵌入式操作系统),又有运用DSP block带来高性能。  [2003-12-10 11:03:43]
[问:haimag] 请问Modulation 都提供那些Ipcore, 
[答:Altera Expert] 请参阅ALTERA的网站或Modulation的网站来得到相应的ipcore列表  [2003-12-10 11:04:41]
[问:fzpcln] 请问DSP核嵌入到FPGA芯片内,如果要用到DSP内核与FPGA是否有相应的接口,如果要用FPGA做复杂的运算,对FPGA的编程是否和实际的DSP芯片一样灵活! 
[答:Altera Expert] what altera do is to integrate a NIOS embedded system plus hardware co-processor.you need to write HDL code to implement the function in a FPGA, please remember that the HDL code will be eventually be converted to logic.  [2003-12-10 11:06:13]
[问:liuyu20 02_0_0] 有没有快速编程的方法,如何在汇编语言和C语言间取舍???谢谢 
[答:Altera Expert] 请问你是指的在嵌入式开发中的编程吗?  [2003-12-10 11:06:22]
[问:clk810412] 在DSP+FPGA开发模式中,要注意的问题是什么?怎么解决速度问题? 
[答:Altera Expert] in this solution, FPGA will do those jobs which are speed sensitive and it is not ecnomic if implemented in dsp software.  [2003-12-10 11:08:32]
[问:ljp] 演示中说PLL一般放在外围或角落,这样有何好处?时钟部分放在什么地方较为合适? 
[答:Altera Expert] 在功能上,PLL 使用来做输入频率相关处理的,如倍分频,调相等等,输入内部供内部逻辑使用或外部其他器件使用,此种功能要求PLL放在外围或角落以减少时钟Jitter等等。在IC制造上难度上PLL放在周边更方便些。  [2003-12-10 11:09:21]
[问:zhang3f] “基于C代码的可编程逻辑设计流程”是否意味着可以开发rtos及并行处理机制,altera有没有提供这方面的ip核呢? 
[答:Altera Expert] 我们提供可以嵌入FPGA内的软核的CPU,客户可以在这个嵌入式的系统上运行RTOS,如果同时嵌入多个CPU在一片FPGA内,也可以实现并行处理。  [2003-12-10 11:09:34]
[问:lxl9726] 用FPGA DSP做调制解调,成本如何? 
[答:Altera Expert] speaking cost, usually you need to do comparision.I think in my presentaion, I have given some examples  [2003-12-10 11:09:59]
[问:qin] 你认为目前的加密技术,那种较为安全? 
[答:Altera Expert] 加密的安全性主要看加密算法的选择,及破解工具的专用性,加密算法越复杂,破解工具越专业,越不容易被破解,也就越安全。  [2003-12-10 11:10:16]
[问:32kmcu] 带DSP核的FPGA目前有开发板或评估板吗?有的话价格如何? 
[答:Altera Expert] Yes, we have. Can you send me an email ( horace@cytech.com ), so that we can further disucss.  [2003-12-10 11:10:34]
[问:ljp] 可编程和可配置有何不同?在设计和使用上有何区别? 
[答:Altera Expert] 对于FPGA/CPLD设计,编程是针对EPROM/CPLD进行数据下载,配置是针对SRAM架构的FPGA进行数据下载。  [2003-12-10 11:10:39]
[问:XYTAN] altera现有的fpga支持ddrsdram最大支持多少位数据总线? 
[答:Altera Expert] 128bits  [2003-12-10 11:13:24]
[问:mprc] 请问你们的DSP是已经嵌入到芯片中的吗?再用C对其编程,实现功能。如果是那样的话,那用QUARTUS3。0中的SOPC BUILDER 集成DSP的IP核 例如FIR等,前者与后者孰优孰劣?谢谢!! 
[答:Altera Expert] If you use processor to do filter algorithm, in essence, it will run serially, when implmented use IP core, it is actually implmented in logic.You can use the embedded processor to instantiate this resource.  [2003-12-10 11:13:28]
[问:haoshuning] 据说,ALTERA由推出90纳米芯片的打算,我的问题有:1、大概的推出日程在什么时候?2、由于90纳米芯片的出现,CYCLONE不再是主推产品,2004年CYCLONE价格是否会上扬?3、如果继续主推CYCLONE,按以往经验,CYCLONE价格会走低,以EP1C12PQ240为例降价空间有多大?(这直接影响到我们新品研发的芯片选型) 
[答:Altera Expert] Thanks for your questions.Cyclone will still be one of the leader products as same as Stratix, MAX ... whatever on technology and price on the PLD world. So you select the right product.Please send me an email ( horace@cytech.com ), so we can have further discussion.  [2003-12-10 11:14:35]
[问:zxy_hot] 我们在使用EPM7128SQC100时出现了以下现象:   我们设计的时序电路比较复杂,其中有两个输出信号实测和仿真不一致,但是我们将有问题的输出信号的引脚定义换到另两个引脚后,就没有问题了,请问是什么原因。是芯片外部电路有问题外是其它原因? 
[答:Altera Expert] 这种情况一般都是时序不能满足要求所致,检查你时序分析报告中的结果,看看有没有建立和保持时间不满足的情况。另外一种情况就是这片器件有问题了,有没有换一个芯片试试?  [2003-12-10 11:14:43]
[问:qin] Stratix中DSP能实现几个IP核? 
[答:Altera Expert] Stratix系列器件最多支持22个DSP模块(EP1S80)。  [2003-12-10 11:15:59]
[问:ZHJNAME] 请问有没有有关DSC(数码相机)的解决方案?还有能不能提供有关图象,音频方面算法书籍或网站? 
[答:Altera Expert] 关于图像处理方面我们提供相应的IPcore 帮助您实现相应的媒体处理,您可参阅我们的IPcore列表来找到您所需要的设计。有关媒体处理算法方面的书籍及网站很多,您可使用“WWW.GOOGLE.COM"对您的特别需求进行一下搜索。  [2003-12-10 11:16:26]
[问:ecnan jing_EBY7E] 做图象处理时,需32*32的乘法器,应选用什么器件最合适? 
[答:Altera Expert] 我们的stratix fpga内嵌硬件的乘加器(dsp block),每个DSP BLOCK都可以实现36*36的乘法,累加功能。建议你是用我们STRATIX FPGA.  [2003-12-10 11:16:54]
[问:XYTAN] ALTERA现有的FPGA,可以支持DDR_SDRAM接口,请问最大支持的并行数据总线宽度多少? 
[答:Altera Expert] Us FPGA support standard DDR interface with high speed to 400 Mbps (200 MHz).and about your problem,you can get from altera websit for DDR:http://www.altera.com/products/devices /stratix/features/stx-ddr_sdram.html  [2003-12-10 11:17:18]
[问:gaopeng 828] 1 ALTERA的开发板,是不是要和外面一块TI的DSP开发板连接才可以构成一个完整的DSP开发系统?2 所谓的DSP BUILDER,HDL代码的生成基本上都是一些简单的总线转化,加法部分,选择器这些很简单的HDL代码,手工也可以书写,但是核心的IP核基本上都是要购买的了,altera dsp builder对用户到底能带来什么好处呢? 
[答:Altera Expert] 1. no2. customer can work in one platform to develop DSP. an algorithm engineer can develop dsp with few knowledge about FPGA, a FPGA engineer can also develop algorithm in this platform, to do simulation in system level  [2003-12-10 11:17:34]
[问:kadial] 请问DSP Block可以提供寻址的能力吗? 
[答:Altera Expert] Yes.You can.  [2003-12-10 11:18:00]
[问:doudou] 如果我要用DSP来控制外部三相固态继电器的话,请问此DSP能否直接进行控制,也就是说此DSP抗干扰性如何呢? 
[答:Altera Expert] Altera的DSP内置在FPGA中,作为数字电路芯片的FPGA的抗干扰能力等同于其他ASIC芯片。  [2003-12-10 11:18:11]
[问:qin] 请比较DCT和JPEG CODEC的图像处理效果. 
[答:Altera Expert] please read the related document, this question is too technical  [2003-12-10 11:19:16]
[问:haimag] 我想了解一下关于无线调制方面IPCore?  
[答:Altera Expert] there are FIR, NCO and reference designs, if you buy dsp dev. kit  [2003-12-10 11:20:11]
[问:zgq_20039] 请问:    有一实时视频图像应用系统中,需要实时对视场中的目标进行提取,并作被时全视场相关运算,输入的视频图像源为彩色数字图像,像元数为768×586,针对此应用,如何选用FPGA和DSP想结合的解决方案?     
[答:Altera Expert] 这个应用比较复杂,你可以选用我们的stratix fpga器件来实现,Stratix FPGA中有硬件的乘加器,三种不同尺寸的内嵌存储器块。可以实现复杂的DSP算法,并达到一个很高的性能。请和我们的FAE联系,或和我们的代理联系。以便我们提供更好的技术支持。谢谢  [2003-12-10 11:21:08]
[问:jasoncsh] 贵公司是否有包含H.263,MPEG4解码功能的IP核,如果没有是否准备开发? 
[答:Altera Expert] currently the available IP cores on DSP can be found at http://www.altera.com/products/ip/dsp/ipm-index.jsp  [2003-12-10 11:21:39]
[问:lizhen7799] FPGADSP开发平台是不是只针对statix系列啊, 
[答:Altera Expert] no,  [2003-12-10 11:21:52]
[问:sunya guang] QUARTUS 软件的仿真和综合能力能力与MODELSIM和synplify在性能和速度上相比如何?如做大型的DSP设计,仅用QUARTUS本身能行吗? 
[答:Altera Expert] QUARTUS的仿真器和综合器特别适合altera的fpga器件,相对于专业的synplify综合工具,Modelsim仿真工具,各有特点,综合出的设计性能依赖于设计。进行大型的DSP设计需要QUARTUS 和DSP BUILDER。  [2003-12-10 11:21:58]
[问:32kmcu] 内嵌的CPU和DSP可以达到目前市面上的MCU和DSP的类似什么芯片,请举例说明,谢谢 
[答:Altera Expert] CPU:32-bit RISC about 100MHz clock in Stratix.DSP: you can see from us presentation,in some appliacation we have more high performance compare with high pperformance DSP.  [2003-12-10 11:21:58]
[问:lxl9726] 用FPGA DSP如何解决调制和解调问题?频率在20MHz~30MHz,同时也有250KHz, 
[答:Altera Expert] 请根据您的调制、解调的方式来设计您的系统。不同的调制解调方式是对应于不同的设计的。对于频率在20MHz~30MHz,同时也有250KHz的情况,用FPGA DSP是可以完成的。  [2003-12-10 11:22:32]
[问:haimag] 如果作一个有符合的乘法器,如何调用IP Core?  
[答:Altera Expert] In QuartusII,use megacore,you can easy use it.  [2003-12-10 11:22:42]
[问:ecnan jing_EBY7E] Altera 的 ByteBlaster(MV)按照说明上的方法,做了一个下载电缆,可是在WIN2K下在编程的时候总是提示为:unrecognized devices or socket is empty。请各位看看是什么原因?MAX7064SLC84-8芯片除了接电源+5V以外,还有其他的设置?抑或下载电缆还有什么其他的东西吗?  
[答:Altera Expert] 没有其他设置了,假设你以正确的安装了下载电缆的驱动程序。这种情况一般是由于自己制作的下载电缆或电路板上下载部分的电路有问题。请对照我们的数据手册仔细检查  [2003-12-10 11:23:33]
[问:BXTF] Altera公司有哪些voip产品,是否有解决方案,性价比如何? 
[答:Altera Expert] ALTERA is programmable logic device company, which provide chips and the related IP cores , design tools to customers.I think you can check from altera website on the related voip ip core, but we donot VOIP product to customers  [2003-12-10 11:24:30]
[问:zzycat] 请问我怎样得到一个永久的DSP Builder License 
[答:Altera Expert] please contact your local FAE for this issue  [2003-12-10 11:24:55]
[问:big yellow] How about the performance of your FIR IP core? Such as the maximum Frequency? 
[答:Altera Expert] 需要根据您的具体设计及器件来看,在我们的参考设计中可以跑到250M  [2003-12-10 11:25:09]
[问:32kmcu] 现有的FPGA(内嵌DSP)对芯片的退藕要求高吗?在工作瞬间是否需要外围更多的电容提供电流? 
[答:Altera Expert] 去藕电容的需求和设计的大小复杂度相关,altera推荐在FPGA的每一对电源和地都加上去藕电容,保证设计可靠。  [2003-12-10 11:25:12]
[问:hj2003] 请问如何将一个设计转换为IP CORE?如何加密(时间保护)? 
[答:Altera Expert] 我们可以提供给我们的第三方的合作伙伴一个转换器,将设计转换成加密的,然后就可以像使用我们的加密的IP Core一样来发布给客户了,但是前提是要加入我们合作伙伴计划。  [2003-12-10 11:25:47]
[问:pjacky] 我在计划二维图像处理的设计,希望能用上FPGA+DSP,请问贵公司有参考方案吗? 
[答:Altera Expert] we have some IP cores. Also you can visit altera website on the related system solutions. http://www.altera.com/solutions/consumer/csm-index.html  [2003-12-10 11:26:54]
[问:kadial] nois是用FPGA的内部逻辑做的一个RISC的CPU,是吗? 
[答:Altera Expert] 是的,完全正确,由于它是软核的,所以你可以很方便的配置它,并把它实现在大多数的Altera的FPGA之中  [2003-12-10 11:27:23]
[问:chenwy] 在贵公司的IP Core 中,包括哪些协议,如H323,G729等? 
[答:Altera Expert] 具体包含的协议请参阅Altera网站的ipcore列表来得到相应的信息  [2003-12-10 11:28:08]
[问:lizhen7799] 现在DSP技术已经很完善了,用FPGA来实现DSP的功能并不是什么新思想,不知是不是啊 
[答:Altera Expert] what do you mean "new idea"?currently the FPGA is becoming more and more complex, can do what the customer previously cannot do and the customer can implement his idea in FPGA.  [2003-12-10 11:28:41]
[问:janetchow] FPGA DSP和一般DSP,哪个运算速度快? 
[答:Altera Expert] as I said in the presentation, since you implement an algorithm in FPGA(hardware), of course, it is faster than traditional dsp  [2003-12-10 11:29:47]
[问:big yellow] What is the means of "sw code" as you mentioned in your answer 
[答:Altera Expert] software code, such as C  [2003-12-10 11:30:08]
[问:big yellow] 那种HDL在开发FPGA更有效率, VHDL or verilog?  
[答:Altera Expert] that depends on the preference of the customer.  [2003-12-10 11:30:34]
[问:sunyaguang] 在做DSP设计时,QUARTUS可支持C和VHDL,请问在执行效率上有什么区别吗? 
[答:Altera Expert] C is used to develop software, while VHDL is used to develop logic, they are used in different areas.  [2003-12-10 11:31:58]
[问:shian] 设计 100MHZ 高速寄数器,输入输出引脚总共大约只要40个即可。 可以采用的芯片有那些。    请推荐几本介绍贵公司器件方面,中文版的图书。 
[答:Altera Expert] 目前altera公司还不能提供中文版的器件资料,市场上的中文图书翻译的质量良莠不齐,容易对工程师造成误导。您的计数器是多少位的?建议先使用QUARTUSII软件跑一下设计,可以针对不同的器件进行试验,看能否满足您的要求。  [2003-12-10 11:32:09]
[问:jenna] 如果调用dsp的ip core,是否占用资源很大,在设计时应该怎样处理这方面的问题,仅仅是选择较大资源的芯片么? 
[答:Altera Expert] ALTERA的 DSP CORE是可定制的DSP ,占用资源的多少要看您的设计和需求,当您的设计比较大时,您可在性能和功能间作一个选择。  [2003-12-10 11:32:33]
[问:Philips] 做两路16位1024点的FFT可以用哪几种芯片? 
[答:Altera Expert] you can use altera FPGA to FFT algorithm and altera provide FFT IP cores  [2003-12-10 11:34:05]
[问:wills2003] SRAM容量的需求对FPGA结构的影响。 
[答:Altera Expert] 您是想问我们的FPGA能够提供多大的ram吗?Altera的Statix器件提供M512、M4k和Mram等不同容量的RAM块。  [2003-12-10 11:34:20]
[问:qin] 用Stratix FPGA设计DSP,和通常的DSP产品价格有何优势?我指的是包括开发工具在内的总价格. 
[答:Altera Expert] We are providing the Board / System level solution to customers, that means Altera FPGA is not just to implment DSP, and it can also use to integrate the peripheral devices on your original BOM ( suc has logic, interface ... ) into the SAME FPGA, as a result, you will get benefit on the total cost ( BOM + PCB ).  [2003-12-10 11:34:37]
[问:clk810412] DSP的通用I/O口很少,那么如何实现同FPGA的数据交换呢? 
[答:Altera Expert] what we provided is to use our NIOS embedded processor and hardware co-processor  [2003-12-10 11:35:11]
[问:hjd0923] 您好:一般的DSP没有象普通PC机的DOS操作系统,使用时很不方便,有解决的办法吗? 
[答:Altera Expert] 你可以在FPGA中嵌入我们的NIOS处理器并加入嵌入操作系统。你可以从以下连接得到更多信息:http://www.altera.com/products/ip/processors/nios/nio-index.html  [2003-12-10 11:36:54]
[问:sunnyday] 前面的演讲没听全,请问ALTERA的普通FPGA做DSP算法效率怎样?如用Cyclone系列的器件 
[答:Altera Expert] of course you can use cyclone to implement some dsp algorithms. for example, though cyclone doesnot have the dedicated multipliers, it has memorys, you can use the softmultiplier or logic resource .  [2003-12-10 11:37:07]
[问:kadial] 为什么Stratix的DSP的乘法累加带宽会达到那么大呢?是工艺上的差别吗? 
[答:Altera Expert] 在fpga中实现的dsp 乘法累加器可采用并行及硬件的算法,这些完全是可以自己定制的,当定制的足够多时,可达到非常大的处理带宽及处理速度。  [2003-12-10 11:37:32]
[问:cwschina] 请问altera dsp dev.kit目前价位大概是多少?  
[答:Altera Expert] Can you send me an email ( horace@cytech.com ) for enquiry ???  [2003-12-10 11:37:37]
[问:32kmcu] 贵公司的FPGA单片最大功耗是多少(稳定工作状态)? 
[答:Altera Expert] 具体功耗是和具体设计相关的。对于我们的FPGA有很详细的计算表格可以计算的。你可以从altea网站得到这个表格,或和Local Cytech FAE联系得到。  [2003-12-10 11:38:32]
[问:sunnyday] FPGA在电力系统控制中适合做那些方面的应用?比如我想做数字锁相环(能精确到多少频率呢)、正余旋实时计算,用FPGA能实现吗,或者用FPGA实现有什么优势? 
[答:Altera Expert] what we provide is a platform, the customer can use this platform to do everything, as to your specific application, can you browse altera website for more information  [2003-12-10 11:38:52]
[问:hjd0923] 另一个问题:FPGA DSP解决方案和单纯的DSP解决方案在将来的技术发展中谁更有前途? 
[答:Altera Expert] 当然是使用可定制的dsp的FPGA解决方案更灵活方便了  [2003-12-10 11:39:57]
[问:samire] 请详细介绍Stratix DSP区块的结构和功能. 
[答:Altera Expert] this is part of my presentation! anyway you can also read the handbook of stratix device, you can download it from altera website  [2003-12-10 11:40:02]
[问:lwz3968] 请问:相关的编程、调试软件怎样获取?是免费提供的吗? 
[答:Altera Expert] contact your local FAE or sales  [2003-12-10 11:40:23]
[问:lizhen7799] DSP builder有没有免费的版本的啊, 
[答:Altera Expert] contact your local FAE or sales  [2003-12-10 11:40:40]
[问:haoshuning] 据我了解,EP1C12PQ240千片价格目前为700元人民币,2005前能否降至400以内? 
[答:Altera Expert] Can you send me an email ( horace@cytech.com ) ???It is because I want to more clear on your questions.  [2003-12-10 11:40:41]
[问:hjd0923] 在软件编程时,由于DSP没有类似的outportb(,),inportb(),delay()函数,C语言中断函数,编程不方便,自己编程可能影响程序实时性,如有类似的DOS操作系统,在I/O操作上将很方便,可是至今我没有解决这个问题。 
[答:Altera Expert] 在嵌入式操作系统中有,您可使用nios 来控制您的dsp .  [2003-12-10 11:43:00]
[问:gavinlu] 用Matlab的Simulink可以开发Dsp的C程序或FPGA/CPLD的VHDL程序,请问在simulink中设计系统最终产生的目标代码是不是比直接用c语言/VHDL写的代码要冗余的多? 但是据Mathworks的技术人员说两种方法最后的结果差不多,有时候Simulink产生的代码甚至更优化,确实如此吗?请不吝释疑!谢谢! 
[答:Altera Expert] please note, if you donot use the altera blockset from dspbuilder, you cannot generate VHDL source code.For matlab/simulink issues, please ask the engineers of mathword!  [2003-12-10 11:43:05]
[问:lz13] 用FPGA来实现DSP功能和一般的DSP 相比稳定性如何? 
[答:Altera Expert] 稳定性一样,没什么差别  [2003-12-10 11:43:52]
[问:32kmcu] 在有DSP内核的芯片上,如果我需要较小的FLASH和RAM,如16KB的FLASH和1K的RAM,可以满足吗? 
[答:Altera Expert] 我们的FPGA有内嵌的RAM,可以实现1K的RAM要求,但是没有内嵌的FLASH. FLASH需要在片外实现  [2003-12-10 11:45:09]
[问:doudou] 请问此DSP芯片的时序较原来的DSP有了什么改变吗? 
[答:Altera Expert] 你是说在我们的FPGA中嵌入的DSP 模块码?我们的FPGA提供一个通用高速处理应用平台,可以根据需要达到你的设计需要。  [2003-12-10 11:45:09]
[问:wsheng] 是否能提供一些典型的设计范例 
[答:Altera Expert] 关于什么样的设计范例?  [2003-12-10 11:45:29]
[问:32kmcu] 请问集成用与处理音频信号的DSP内核的FPGA的最小物理尺寸是多大?什么封装? 
[答:Altera Expert] that is dependent on the specific application.Please note that, it is up to the customer to implement the application. you can use altera stratix device  [2003-12-10 11:46:32]
[问:32kmcu] 有无FPGA实现PCI、APCI、CPCI的应用案例? 
[答:Altera Expert] ALTERA提供相应的ipcore及开发板,在开发板上有参考设计,详细的信息可访问ALTERA 的网站  [2003-12-10 11:47:16]
[问:doudou] 请问此DSP的驱动能力如何呢??? 
[答:Altera Expert] what we provide is that we can implement the dsp application in altera FPGA, it is not the traditional DSP.  [2003-12-10 11:47:31]
[问:gudupwf] 有针对NIOS的操作系统码? 
[答:Altera Expert] 目前有很多第三方的嵌入式操作系统提供商可以提供针对NIOS的实时操作系统,如ucLinux,UCOS等等。  [2003-12-10 11:48:06]
[问:ecnan jing_EBY7E] 请问专家,在成本控制方面,用FPGA实现DSP(32位浮点,160M)和选用通用DSP芯片,在多少量的情况下成倍基本持平? 
[答:Altera Expert] that depends on the resources used in FPGA and the costs of DSP, I think you can calculate yourself  [2003-12-10 11:49:03]
[问:doudou] 请问此DSP芯片对外部器件的最大驱动能力是多少呢??? 
[答:Altera Expert] 这个问题和您选用的器件及选用的IO类型、驱动能力有关,对于ALTERA的FPGA管教驱动能力是可配置的。  [2003-12-10 11:49:35]
[问:vanbalar] 采样率达到1GHz的系统,基带实现可以用那一款芯片,谢谢 
[答:Altera Expert] 这要看你要处理的基带信号是以何种方式传送给FPGA了。我们的FPGA可以提供高速的差分通道,如840Mbps(Stratix),1G,3.125G(Stratix)。具体应用,请与当地的FAE联系。  [2003-12-10 11:49:50]
[问:doudou] 请问此DSP芯片是否提高了程序下载模块的内部驱动能力了呢? 
[答:Altera Expert] Note, it is FPGA, not the so-called traditional DSP processor(like dsp from TI), customer can implement dsp algorithm and applications in our FPGA  [2003-12-10 11:50:20]
[问:XYTAN] 并行crc校验可以用DSP实现吗?是不是速度可以更快?? 
[答:Altera Expert] 可以,采用适当的软硬结合的设计方法crc 128位可达到150M以上的速度  [2003-12-10 11:51:43]
[问:ljp] DSP开发工具的价格请介绍下下?货期有多长? 
[答:Altera Expert] For Software, you can just using Quartus II + DSP Builder to do development.For Development Board, please send us an email for enquiry ( horace@cytech.com )  [2003-12-10 11:52:14]
[问:hjd0923] FPGA DSP能实现浮点运算吗? 
[答:Altera Expert] FPGA is a platform, the customer implements what he wants in fpga. Of course the customer can implement a floating algorithm in a fpga  [2003-12-10 11:52:18]
[问:ecnan jing_EBY7E] 请问,现在FPGA的速度能到多快? 
[答:Altera Expert] 你问的是什么速度?一个设计的最快运行频率必须要经过布局布线之后的时序分析才能知道这个设计到底可以运行多块。这和芯片的性能有关,但更和设计本身有关  [2003-12-10 11:52:34]
[问:doudou] 您能举出一例来说明DSP比VHDL更好吗?如VHDL不能办到的,而DSP却可以 
[答:Altera Expert] VHDL 是一种硬件描述语言,主要用于数字逻辑的设计与验证。DSP 是数字信号处理器件,二者没有可比性。  [2003-12-10 11:53:21]
[问:samire] 什么是软乘法器?在Stratix中有大量的软乘法器,有何好处?在设计上有何优点? 
[答:Altera Expert] that is implement a multiplier using the internal memory, it is a complements to hard multiplier.it is also very fast.  [2003-12-10 11:53:22]
[问:mwuyong] 这种解决方案应用的范围很广吗? 
[答:Altera Expert] sure, wireless, consumer, industrial,data comm, etc.  [2003-12-10 11:53:58]
[问:lz13] 有没有一些关于音效处理方面的应用实例可供参考 
[答:Altera Expert] 我们有音频的ipcore以帮助工程师方便的完成音频系统的设计。参见前面的相关回复。  [2003-12-10 11:54:11]
[问:lotusyan] FPGA的性能很强大,与SOC有什么区别吗? 
[答:Altera Expert] Actually, we are providing customer System Solution ( SOPC, System On Programmable Chip ), so that you can put all of your system ( DSP + Logic + Interface ... ) on a FPGA.And the other ASSP SOC ,are still not flexible to do on any design, and still dedicate on defined application only.  [2003-12-10 11:55:18]
[问:chenwy] 如何用DSP实现FSK的收发? 
[答:Altera Expert] it is too specific! I think, you can use our dspbuilder to implement it  [2003-12-10 11:55:35]
[问:amaosonic] FPGA 和 DSP 各自都有特定优势领域,怎么融合来利用综合优势呢? 
[答:Altera Expert] 这个要看您的具体设计,DSP中内嵌很多诸如ad\da一类的功能但灵活性很差,FPGA是纯数字的,灵活性强,数据处理更快。  [2003-12-10 11:55:38]
[问:amaosonic] FPGA设计的安全性问题怎么考虑? 
[答:Altera Expert] 您可以将您的设计分为2个部分,复杂逻辑放在FPGA中,简单的逻辑放在一片小的EPLD内,这样FPGA上电配置的内容即使被窃取,系统还是安全的。  [2003-12-10 11:56:03]
[问:ecnan jing_EBY7E] 用 ByteBlasterMV 对 EPM7064SLC44-10 编程时总是提示 Device is not erased,怎么才能把芯片擦除了? 怎么才能写入新程序? 
[答:Altera Expert] 一般来说,在对器件编程的时候,我们的软件总是首先自动擦除器件,然后才编程,对于此提示可能是由于某种原因,软件无法自动擦除,请换一个芯片试试,如果问题仍然存在,请更换下载电缆。或检查下载部分的电路。  [2003-12-10 11:56:16]
[问:lotusyan] 能介绍一下Nios吗? 
[答:Altera Expert] Nios is software 32-bit RISCE embedded CPU in us FPGA.And you can find more infomation from Altera websit:http://www.altera.com/products/ip/processors/nios/nio-index.htmlor you can contact with us Local FAE get more information about nios.  [2003-12-10 11:57:38]
[问:doudou] 请问DSP内部是否兼有隔离器件呢? 
[答:Altera Expert] 没有  [2003-12-10 11:57:52]
[问:amaosonic] 贵公司的产品,是否就是把FPGA的功能融合了高速实时计算的DSP功能呢? 那么dsp能否和cpld 结合呢? 
[答:Altera Expert] yes,我们在大容量FPGA中嵌入了高速DSP运算模块。 目前ALTERA的cpld产品没有嵌入DSP,不排除这种可能。  [2003-12-10 11:58:44]
[问:xuelei_51] FPGA实现DSP应注意那些问题 
[答:Altera Expert] useing FPGA to implement dsp applications is actually logic design, it is different from the traditional dsp development  [2003-12-10 11:58:45]
[问:sccgjchn] fpga 中 PLL 如何使用 
[答:Altera Expert] 可以使用QuartusII软件中的插件MageWizard生成一个配置好参数的PLL模块,然后再顶层设计中就可以调用了。  [2003-12-10 11:59:02]
[问:kadial] 这些跟DSP有关的IP Core 都是免费的吗? 
[答:Altera Expert] IP Cores are developed by Altera and the partners ( AMPP ), so please send me an email ( horace@cytech.com ) for further enquiry.  [2003-12-10 11:59:06]
[问:yeding sheng503] 你们可以提供一些开发IP核的资料吗? 
[答:Altera Expert] you mean you develop the IP yourself!  [2003-12-10 11:59:19]
[问:liwenz] 请问有没有适应于工业控制的(MOTOR)的DSP内核? 
[答:Altera Expert] no  [2003-12-10 11:59:38]
[问:yjems] 请介绍一下FPGA/CPLD的区别与联系。 
[答:Altera Expert] 这两者都是可编程器件,fpga 基于sram核,可做的很大,cpld 为epram的核,一般逻辑容量比较小。  [2003-12-10 12:00:27]
[问:doudou] 请问此DSP是否增添了新的外部传输模块?是否有更简便的传输编程方法? 
[答:Altera Expert] what FPGA provided are all you can use  [2003-12-10 12:00:31]
[问:zzycat] 请问:FPGA DSP的SW部分最后是转化成逻辑吗? 
[答:Altera Expert] the sw of the embedded processor will be stored in internal memory or external memory  [2003-12-10 12:01:39]
[问:gaozggao] 如果将3.3伏的FPGA用于工业控制,由于工作环境的影响,将会对FPGA产生各种干扰,贵公司是否有这方面的解决方案 
[答:Altera Expert] 我想FPGA的干扰问题,等同于其他ASIC芯片。因为系统在上电重启的时候只要FPGA配置不正确,FPGA将自动重新配置,保证芯片正常工作。至于工作过程中的干扰,它不会影响FPGA的电路设计,只会影响电路工作是否正常。  [2003-12-10 12:02:21]
[主持人:ChinaECNet] 恭喜您,哈尔滨工业大学机器人研究所的 cwschina !经过电脑抽奖您在本次座谈中获得一部MP3播放器。请网名为cwschina的用户与中电网联系(8610-82888222-7009 或 lilin@chinaecnet.com)。  [2003-12-10 12:02:29]
[主持人:ChinaECNet] 现在座谈即将结束。欢迎各位填写在线座谈页面的问卷调查,并请于明天中午12点以前提交。提交调查的用户将有机会获得中电网的小礼品一份。  [2003-12-10 12:02:46]
[问:qhb99] FPGA和DSP各自的优势在哪里?分别适用那个领域? 
[答:Altera Expert] FPGA is a chip, dsp is an application. you can implement dsp application using fpga. [2003-12-10 12:02:51]
[主持人:ChinaECNet] 今天虽然各位听众(网友)已与Altera讨论了许多问题,但是还有许多提问没有来得及进行交流。本次在线座谈结束后,中电网将请Altera的专家继续答复所有的来自各位听众(网友)的提问,然后整理上载到中电网网站上,以便大家查阅。  [2003-12-10 12:04:49]
[主持人:ChinaECNet] 祝大家事业有成、生活愉快!欢迎多提宝贵意见,欢迎关注中电网,下次再见。  [2003-12-10 12:05:47]
非在线问答:
[问:] Do you provide IIR Filter IP core?
[答:] Yes.You can get detail IP technology information from altera web:http://www.altera.com/products/ip/dsp/filtering/m-alt-iircompiler.html or you can contact with Local Cytech FAE to get more information.
[问:] ALTERA 能不能把其最新资讯以邮件的方式直接发给我?
[答:] I think you can make register in altera web,and you can get latest information from altera in fixed time. Please visit www.altera.com
[问:] FPGA DSP开发工具怎样收费
[答:] Software is called DSP Builder, and also have the Hardware Development Kit, please send me an email ( horace@cytech.com ) for price details
[问:] DSP FPGA与用一般的DSP+一般FPGA相比,有那些优点?谢谢
[答:] 1,As our presentation show: Growing Demand for MIPS & Memory Bandwidth need us Stratix DSP block solution;2,Compare with traditional FPGA,we can provide Effective Cost in your system. 3,Use our solution,I think you can emerge two part of founction into one chip,and it may be useful to you.
[问:] 片上dsp提供的接口是否完备?
[答:] Your means is interface between our FPGA and other IC? If yes,I think you can set different interface use FPGA internal resource,I think it is useful for you to realize differnet interface as you requirment with FPGA flexible characteristic.
[问:] 贵公司在哪个技术领域有比较成熟的技术解决方案?
[答:] Basically, Telecommunication, Datacommunication, Consumer, Industrial …
[问:] ALTERA公司的培训采样什么样的方式?
[答:] Monthly training on University, On site customer training, On-Line Seminar, or per customer request to have dedicated training for them.
[问:] 1.FPGA内嵌DSP的产品有哪些?不单是贵公司. 2.FPGA与DSP单独使用优缺点是什么.
[答:] 1,Compare with competitor, we have more high performance,and you can get detail information from altera FPGA datasheet and websit.and you also contact with Cytech local FAE to make a deep discussion. 2,About your second question, as I have answered as above.
[问:] 还有就是开发工具贵不贵,上手容易吗(我以前用CPLD)?对大学有什么优惠措施和推广计划吗?
[答:] You can contact Cytech Local sales to get detail information.Other side,I think here is a University Program to support you.
[问:] 用FPGA能实现2.8GBPS速度的PCM-PWM的转换码?
[答:] For your detail information,pls contact with your local Cytech FAE for make deep disscussion.
[问:] 在开发嵌入DSP的FPGA时要注意什么问题
[答:] For your detail information,pls contact with your local Cytech FAE for make deep disscussion.
[问:] 能不能用FPGA来实现DDS?
[答:] Yes.You can.I think you can get a high performance use our FPGA.Other side,we have referenc design for you at altera web site: http://www.altera.com/products/ip/ dsp/m-alt-ref_dsp_stratix_dsss.html
[问:] 建议通过一个具体的应用实例来讲解FPGA与DSP的应用。
[答:] Yes. You can find more reference design in alera web sit. Like DSSS modem,http://www.altera.com/products/ip/dsp/m-alt-ref_dsp_stratix_dsss.html. Other side, for lot's IP,we have reference design and user guide after install it.
[问:] 请问使用这种方案的fpga的管脚与普通的dsp一样吗?
[答:] You can assign your pin as your requirment.
[问:] 3.3v供电5v兼容的器件,外部输入可以使5v,但输出为3.3v,是不是还得需要上啦?
[答:] Yes. Or you can add a voltage conversion IC .
[问:] FPGA DSP的优势是什么?
[答:] FPGA does have performance, price & flexibility advantages. It depends on individual application.
[问:] fpga dsp与通用的dsp比较有什么不同?
[答:] FPGA does have performance, price & flexibility advantages. It depends on individual application.
[问:] '除了FIR滤波器、(FFT)、RS编解码器、数控振荡器和Viterbi编解码器外,还可以提供其他的IP吗?谢谢!
[答:] I think you can find more information about IP in altera website: http://www.altera.com/products/ip/ipm-index.html
[问:] 存储器的Bit和带宽有何直接的关系?
[答:] Bit and bandwith are also a characteristic for RAM capability and performance.
[问:] 另一个问题:请问贵公司的芯片可以在哪里买到呢??
[答:] You can contact Cytech Technology Ltd, or email to ( horace@cytech.com )
[问:] 您好:您能说明一下您的DSP中ROM和RAM较原来的DSP芯片的区别与提高吗???
[答:] You can get high performance if you use FPGA internal RAM resource.Of course,you can get a total high performance system.Other side,you can get detail Straix RAM performance in Stratix datasheet or altera web sit
[问:] 请问您对您公司研制的DSP下一步的打算是什么呢?
[答:] Altera have dedicate technology team focus make high DSP performance in us FPGA.and you can get latest information from altera websit.
[问:] 请问您所提供的DSP是指的哪些型号呢?
[答:] We are providing the Stratix FPGA with DSP block in it.Detail type,you can contact with Robin(Robinluo@cytech.com) to help select device.
[问:] 请问此DSP芯片的成本如何,是否有希望降价呢?
[答:] We are providing the SOPC ( Systom On Programmable Chip ) total solution to customer, so not just DSP function, the other peripherial functions which could be integrated into the same FPGA, and in turn to cost down your overall system cost.
[问:] 我想获得一些有关在fpga上进行qam,qpks的资料.谢谢
[答:] You can use reference design or IP core to design your system which provide by altera.Like QPSK reference design: http://www.altera.com/products/ip/ dsp/m-alt-ref_dsp_stratix_qpsk.html
[问:] 我想请问专家,会后怎么和您联系?
[答:] Please send me email ( horace@cytech.com )
[问:] 一般情况下,在CPLD设计中,延时是否不太重要?ALtera 能否提供更便宜一些的实验板或者推荐一些比较便宜的国内产品?
[答:] Whether the delay important for your design is depend on your system;About altera develop kit issue,you can contact with Cyteth local sales for get more information.
[问:] 用c开发dsp系统,是否支持system c
[答:] System C is an advanced Hardware language.whether it is used in our FPGA hardware depend on your synthesis tools .You can get more information from http://www.systemc.org/
[问:] 用你们提供的开发软件,怎样开发IP?
[答:] You can get IP core user guide from altera web site and it guides you to use IP core in your system.
[问:] 最近的一片文章报道,FPGA综合的结果(也就是片内自动布线)与预期效果相差50%,如果这是真的,是否要用逻辑锁或更多的手动布局来进行优化约束?而专用DSP芯片则没有这个问题,这是否是FPGA的一个缺陷?
[答:] It is not this case! Our qarutus II can do most of the job. As for advanced customer, he/she can use our logiclock and other features to optimize his/her design.