| [问:robin] |
In software and file ,what is ADI offer? May ADI offer the detailed list for promotion except visualdsp++. |
| [答:Ksri] |
ADI offers VDSP++ tools. The VDSP++ tools consist of optimizing C/C++ compiler, assembler, linker, loader, debugger, IDE, profiler, pipeline viewer and cache profiler tools.
These tools are being promoted under ADI DSP tools promotion program in China. Please contact ADI distributor or the ADI office for more details of this. |
[2003-3-24 10:51:03] |
| [问:orinzhu] |
Blackfin DSP在指紋識別中的處理性能如何?用那一款DSP可達到較高較快的性能? |
[答:Singer _Zhang] |
Blackfin DSP很适合指纹识别这样的项目,你可以考虑用ADSP-21535,如果你考虑成本,你可以考虑用ADSP-21532.我们会在最近发布一个更快的Blackfin DSP产品. |
[2003-3-24 10:51:33] |
| [问:78590] |
使用TigerSHARC DSP 对SDRAM的某个存储单元访问是如何进行的 |
[答:Wu_ Zheyi] |
The SDRAM interface enables the ADSP-TS001 to transfer data to and from synchronous DRAM (SDRAM) at a throughput of one word per SCLK cycle. The SDRAM interface provides a glueless interface with standard SDRAMs—16Mb, 64Mb, 128Mb, and 256Mb. The DSP supports directly a maximum of 64Mwords × 32b of SDRAM. The SDRAM interface is mapped in external memory in the DSP’s unified memory map. |
[2003-3-24 10:52:21] |
| [问:hanxin] |
我公司在开发系统时使用adsp2191,现在我想知道关于sharc的有关的资料和应用领域以及应用案例! |
[答:Singer _Zhang] |
在ADI的网站上,有非常丰富的资料,你可以登录www.analog.com/dsp去寻找你要的资料及应用案例. |
[2003-3-24 10:53:45] |
[问:huzh ongchao] |
我想使用16位AD转换使模拟信号变成数字信号后通过一线总线传输.请问使用贵公司的哪种AD转换芯片可以实现以上功能? |
[答:Amy _Zhang] |
ADI的16位ADC转换芯片很多,具体的型号要看你的具体应用,请联系本地ADI代表处或者代理商,如世健系统。 |
[2003-3-24 10:54:10] |
[问:heye jun888] |
请问DSP技术目前在移动通信中的基站发射部分的基带处理部分实际有哪些表现?中国联通CDMA网络中具体应用芯片是什么? |
[答:Cr aig_Wu] |
Yes. TS has won the Best DSP in 2002 for its excellent Baseband processing.
Blackfin has also special baseband and channel decoder/encoder intruction. They will be used in 3G handheld baseband processing. |
[2003-3-24 10:54:33] |
[问: orinzhu] |
剛才你提到指令集中有Huffman編碼的指令,請問是那一條,在指令集中好像找不到 |
| [答:Ksri] |
Huffman coding involves bit manipulations, vector arithmetic (especially search) and memory intensive operations.
For this, we have instructions like bit set, bit clear, bit deposit, bit extract. The bit deposit and extract instructions are very powerful to give optimal performance.
For vector operations, we have Vector Search instructions that will give parallel search operations thus saving a lot of MIPS for the huffman coding.
The large internal memory enables storing of tables for table lookup. |
[2003-3-24 10:54:46] |
[问: charmy] |
我的单片机没有IIC接口,要靠软件模拟,不知行不行? |
[答:Wu _Zheyi] |
可以 |
[2003-3-24 10:54:55] |
[问: fjddxx] |
对于常规的数字信号处理芯片,能否将现有的一些嵌入式操作系统移植过去,或者说那样有些什么条件和要求?该怎么做? |
[答:Cr aig_Wu] |
对于DSP来说,可以将现有的嵌入式操作系统移植过去.
Balckfin和TigerSHARC都支持信号量操作等,可以支持多线程操作系统。
WindRiver已经有了可以在Blackfin上运行的操作系统。 |
[2003-3-24 10:55:46] |
[问:bit _liufeng] |
TigerSHARC使用AutoDMA进行Host加载方法是不是有问题? 我在评估板上运行ADI给的例程,无法执行。 请问如何解决AutoDMA加载问题? |
[答:Li_ Chuan] |
There are no problem when you are using Host, you need not AutoDMA at all, just use the DMA is ok. if you still have the question, you can call the hotline after the seminar. |
[2003-3-24 10:56:08] |
[问:hdden g@263.net] |
请问贵公司的219x系列的dsp有没有对于PCI\USB产品应用的例子 这样的dsp的价格是多少? |
[答: Jack_Xue] |
You can use PCI and USB controller to connect DSP. The interface uses memory map IO.
The price of 219x is within 10$ to 17$. |
[2003-3-24 10:56:38] |
[问: yujinjin] |
TigerSharc 201芯片的VDK是否支持用中断程序用C而不是汇编完成?谢谢! |
[答: extra2] |
可以支持! 具体请参考VisualDSP++的C/C++应用手册。 |
[2003-3-24 10:57:01] |
| [问:robin] |
how to deal with the memory on 218x DSP if the program extend the memory size, and how to simulate that in VDSP |
[答:Singer _Zhang] |
Please find "Memory Interface" on ADSP218x hardware reference Manual for detail and you can see extend memory in "assembly window". You typically use the BDMA interface external memory with DSP. |
[2003-3-24 10:58:00] |
[问:Qin Jingfan] |
1、目前能提供通信语音编解码DSP软件的ADI的第三方都有哪些?能否提供象TI那样的一个列表。 |
[答: Jack_Xue] |
We have the list for third party who can provide Voice Codec algorithm in different ADSP platform.
The detailed pls check Beijing DSP Call Center. |
[2003-3-24 10:58:28] |
[问: 28912] |
应用于通信领域时,32位浮点Tiger SHARC? 处理器已经经过验证的最大通信处理能力是多少?处理155M流量时,最多需要几片这种DSP才能保证信号处理质量? |
[答: Li_Chuan] |
One Chip Tigersharc have 2G communication ability at 250M working frequency, the cluster bus have the 800M ability. so the bottle neck is not at DSP but at the interface for your whole system, such as the PCI or the VME bus you are using. |
[2003-3-24 10:59:26] |
[问: panqun] |
SHARC系列DSP是否适合应用于实时数据采集处理系统中,其主要特点是什么? 谢谢! |
| [答:Ksri] |
SHARC DSP is suitable for real time data processing. The features in SHARC DSP that enable are as follows :
1. Balanced core and IOP architecture 2. Dual ported memory 3. Good IO Processor 4. Good onchip peripherals. 5. Multiprocessing
The SHARC DSPs core and IOP are balanced in the sense, that core can do the computations while the IOP can in parallel do the data transfer without the core intervening for the data transfer.
The dual ported memory of SHARC enables the core to access memory simultaneously while the IOP also transfers the data. This gives a high core performance while the IOP is in parallelly getting the data.
The IOP (DMA) has features like chaining, 2-D DMA etc that support good data acquisition.
The Multiprocessing features enable glueless multiprocessing that enhances the overall application performance because hardware does lot of tasks to interface with other DSPs.
Peripherals like Linkports and serial ports will also enable good datga throughput.; |
[2003-3-24 10:59:29] |
| [问:robin] |
how to config the cache in the Blackfin |
[答: Craig_Wu] |
ADI provide cache initial program which can config the cache correctly. Please contact ADI support for detailed information. |
[2003-3-24 11:00:43] |
[问:huang yg@ecict. com.cn] |
对于PCI设备,如何使用驱动程序?难道要重新编写驱动吗?而且,DSP容量有限? |
[答: extra2] |
Blackfin PCI bridge provide easy program method to realize the communication from Blackfin to PC.
ADI provides the prototye PCI program to custom. |
[2003-3-24 11:01:23] |
| [问:robin] |
I want to know how to write the LDF file. Where to find the detailed description of LDF file? |
[答:Wu _Zheyi] |
你能在Visualdsp软件的DOCS目录下关于LINK的描述中找到 |
[2003-3-24 11:01:59] |
[问: samire] |
DSP中的中断和取样的关系处理? |
[答:Amy _Zhang] |
YOu can use one interrupt one sample in/out, or DMA method N sample in/ou one intterupt. |
[2003-3-24 11:02:28] |
| [问:9982] |
Tiger SHARC 是一种独立的CPU 体系结构吗? |
[答: Li_Chuan] |
Tigersharc is a new architecture which incorporate the advantage of the VLIW, DSP and RISC. it is a new one but the instruction set go on with the advantage of ADI DSP. |
[2003-3-24 11:02:58] |
[问: herofly] |
请问在ADI公司的内核当中有哪些考虑到功耗散热措施? |
[答: extra2] |
ADI的DSP功耗很小,可以通过同时降低频率和电压来实现高效动态电源管理。 由于DSP的小功耗,一般不用采用特殊的散热处理。 |
[2003-3-24 11:03:15] |
[问: herofly] |
在哪里可以下载到贵公司的参考设计? |
[答:Amy _Zhang] |
ADI provides DSP selection guides that gives their target application segments. This is available in our website at http://www.analog.com/Analog_Root/static/library/ dspManuals/genDspPublications.html |
[2003-3-24 11:03:58] |
[问: chengyun @263.net] |
which os the ADSP-21535 can support? linux or wince. |
[答:Pang _Feng] |
The ADSP021535 supports WINCE. |
[2003-3-24 11:04:08] |
| [问:anbo] |
我想问adsp-21532,21535多少钱一片?启动项目的所以的开发工具,评估板等需要的费用?与trimedia相比的主要优势。谢谢 |
[答:Wu _Zheyi] |
价格可以与华创联系,021-52062219潘先生,开发工具是1200美金,包含软件,仿真器和评估板 |
[2003-3-24 11:04:17] |
| [问:fjddxx] |
请问TigerSHARC DSP在降低功耗方面有什么考量? |
[答: Jack_Xue] |
TigerSharc is a very low power consumption DSP. The full run consumption will be only cost less than 2W.
So you need not care about the power consumption.
Of course, you can adjust your MPIS to your task. |
[2003-3-24 11:04:51] |
| [问:ljp] |
处理多路信号时,如何把DSP并行运行?要注意什么问题? |
[答: Craig_Wu] |
ADI的SHARC和TigerSHARC支持多处理器运行。 可以通过Linkport或者片外总线进行多处理器连接 Linkport比较简单,试用于数据传输比较少的场合。 总线方式则比较适合有大量数据交换的方式。SHARC和TIGERSHARC都内置了总线仲裁器,可以支持最多8个DSP并行运行而不需要外加FPGA。
Blackfin也可以级联,但需要外加总线仲裁。 |
[2003-3-24 11:05:32] |
[问:guilin @263.net] |
请问AD的DSP内存空间是连续统一的,还是类似TI的DSP分成程序空间/IO空间等? |
[答:Singer _Zhang] |
ADI不同的DSP有不同的空间分配,总的说是可以分成程序空间,数据空间,I/O空间几个部分.在ADI DSP中,它们是连续统一的. |
[2003-3-24 11:05:57] |
| [问:robin] |
Will ADI develop 32bit fix DSP future? |
[答:Pang _Feng] |
Our Sharc DSPs, which are 32-bit floating point DSPs, can do 32-bit Fix Point computations. Our Blackfin DSP, which is a 16-bit fixed point DSP, can do 32-bit fix point computations in 2 cycles. |
[2003-3-24 11:06:03] |
| [问:samire] |
在编程时如何处理实时I/O?如何确定取样频率? |
| [答:Ksri] |
There are two questions.
1. How to process real time IO when you are programming ? Ans : The real time IO has to be handled using the ping pong buffer mechanism when processing in real time. Create two buffers called ping - pong buffers. When buffer 1 is used by the core for processing, use buffer 2 for the IOP to fillup. Once processing of buffer 1 is complete, teh core will process buffer 2 while the IOP is now filling up buffer 1.
ADI SHARC, Blackfin and TigerSHARC DSPs have good IOP and cores that will enable you to do the above tasks very very efficiently.
Qn 2 : How to know the sample frequency ?
Ans : You just cannot know the sample frequency from the input signal. One mechanism to atleast get a rough estimate is to do a spectral analysis, identify the frequencies that keep repeating and extract out the sample frequency |
[2003-3-24 11:06:35] |
| [问:robin] |
What"s the datum of ADI"s DSP and how can get it? |
[答:Amy _Zhang] |
Assuming that you are referring to ADI Data sheets, you can download this from our website at http://www.analog.com/Analog_Root/sitePage/mainSectionResource /0,2131,level4%253D%25252D1%2526level1%253D205%2526level 2%253D%25252D1%2526level3%253D%25252D1%2526resource WebLawID%253D83,00.html. You can also get these from ADI distributor. |
[2003-3-24 11:06:38] |
| [问:yujinjin] |
如果想实现类似TI EDMA的2D传输模式下,一次外部同步事件(相当于AD 的DMAR I/O 信号脉冲下降沿)可以使DMA传输一个数据块(EDMA配置为n个数据块,每个数据块有m个数据)而不仅仅是一个数据的功能,在TS 201 DMA中如何完成? |
[答: Jack_Xue] |
In TS, DAM packet data transmission is also provided. The DMA will be one dimension or two dimension. The packet size can be designed by your requirement. |
[2003-3-24 11:06:39] |
[问: 91567] |
我现在用adsp21062 请问怎样产生一个*.ldr文件 |
[答: Jack_Xue] |
可以在VisuaDSP的开发环境中,设置project options -> Target/Type 为ldr文件格式,就可以在编译目录找到一个"ldr"结尾的文件。 |
[2003-3-24 11:07:41] |
[问: orinzhu] |
ADSP21535 EZ-Kit Lite能否用于評估 Tiger Sharc的DSP,就是說,各個EZ-Kit Lite之間的兼容性如何? |
[答:Pang _Feng] |
The Blackfin and Tigersharc DSPs are not compatible so you cannot use the Blackfin Ez-Kit Lite to evaluate the Tigersharc. |
[2003-3-24 11:07:46] |
| [问:whsyl] |
ADSP21160是过渡产品吗?ADI是否会不断完善该产品,减少bug?什么时候才能推出100M的ADSP21160N? |
[答:Li_ Chuan] |
No, it is a product that we will support for a very long time. and now it has less bugs for the released products and we have the 21161N already and the 21160N is just ahead. |
[2003-3-24 11:07:54] |
[问: zhuzhai] |
请问我想开发网络视频产品(即将视频信号采样后,通过TCP/IP发布到INTER网).采用那款DSP较合适? |
[答: Jack_Xue] |
Our Blackfin Seril DSPs is much suitable for your application. You can choose ADSP-21532. |
[2003-3-24 11:08:47] |
| [问:85890] |
请介绍一些相应的开发系统和其价格情况 |
[答:Wu _Zheyi] |
开发系统包含软件-VisualDSP、仿真器-ICE和评估板-EVB,一套价格是1200美金 |
[2003-3-24 11:08:57] |
| [问:xbao] |
有能支持USB2.0的DSP芯片吗 |
[答:Pang _Feng] |
There are no ADI DSPs that support USB 2.0. Our Blackfin DSP (21535) supports USB 1.1. USB 2.0 is backwards compatible with USB 1.1. |
[2003-3-24 11:08:59] |
[问:xy_ xy_1] |
请问AD6522中的DSP SUBSYSTEM 是属于定点还是浮点的,它与ADSP-21XX系列DSP兼容吗? |
[答: Li_Chuan] |
it is fixed point DSP and actually it is the core of ADSP-218x. |
[2003-3-24 11:09:14] |
| [问:robin] |
Do ADI have an example for the DSP program (e.g. MPEG 2 Encode & Decode) |
[答:Singer _Zhang] |
ADI provides a number of example programs for Blackfin in its website. These are simple DSP kernels like the fft, dct, idct etc. For application codes like MPEG, ADI third parties offer the code. The list of 3rd parties are available at the ADI website under "DSP collaborative". |
[2003-3-24 11:09:30] |
| [问:robin] |
1.When is HP ICE available? |
[答: extra2] |
HP ICE is already shipping today. |
[2003-3-24 11:09:33] |
[问: bitwwj] |
我在TS外围连接一个FIFO和SRAM,通过TS的FLYBY方式将数据从FIFO传到SRAM中,是否可行?TS的FLYBY是否还有BUG? |
| [答:Ksri] |
The question is about the Fly by DMA from TS internal memory to SRAM external through a FIFO.
Ans : The purpose of a FLY by DMA is to perform an external peripheral to external memory DMA. It is NOT for internal memory to external memory DMA. Hence you should not use FLY BY mode for this, but can use the normal DMA transfer for performing these operations.
There is currently no bug in FLY by DMA transfers |
[2003-3-24 11:10:23] |
| [问:robin] |
Any third parties DSP development tools available in China ? Who are they and how much for them ? |
[答:Wu _Zheyi] |
没有 |
[2003-3-24 11:11:00] |
[问:xy _xy_1] |
请问AD6522中的DSP子系统中使用的DSP与以往的那个系列DSP兼容? 还请问,ADI用于无源麦克风的放大芯片可使用那些? |
[答:Singer _Zhang] |
与ADSP-218X系列产品兼容. ADI用于无源麦克风的放大芯片可使用SSM2167. |
[2003-3-24 11:11:09] |
| [问:herofly] |
在哪里可以下载到贵公司的参考设计? |
[答: Craig_Wu] |
你可以在www.analog.com/dsp下找到很多应用手册和参考代码。如果你需要完整的参考设计方案,可以查找ADI的第三方。 http://dspcollaborative.analog.com/developers/ DSP_ThirdParty_Search_Home.asp |
[2003-3-24 11:11:43] |
| [问:34264] |
请问ADI的adsp-21160m为何会那么贵,我看了一下它的浮点运算速度,好像也就不到600M,而TI的tms320c6701可以达到900M-1G的速度,但是价格比ADSP-21160m便宜很多,能解释一下ADSP-21160m贵的原因么,它比tms320c6701的优势在哪里? |
[答: Jack_Xue] |
21160 is dual MAC core. and large memory size. It can process both fixed and floating point. Its parallel architecture is more better than TIc67xx.
So, Sharc can match your large system requirement. |
[2003-3-24 11:11:48] |
| [问:qin] |
请介绍几种Blackfin DSP的应用案例。从那里可得到这些详细资料? |
[答: Li_Chuan] |
Yes we have local third parties in China who can provide MPEG4, TTS, G.7xx and other algorithm, Blackfin and TS PCI card. Please contact CAST # 800-810-1742 for more information.successful |
[2003-3-24 11:12:01] |
| [问:robin] |
How efficient is ADI"C compiler? |
[答: extra2] |
ADI"s C compiler is good for ANSI C program. |
[2003-3-24 11:12:12] |
[问: bitwwj] |
TS的ezkit原理图好像不全,例如USB接口部分没有,是否可以提供全面的原理图? |
[答: Li_Chuan] |
You can find that part(USB interface) on 2191 EZ-Kit. it is the same. |
[2003-3-24 11:13:45] |
| [问:ljp] |
ADI的DSP种类很多,如何选择?有没有基本的考卷原则?主要的依据是什么?请介绍一下。 |
[答:Singer _Zhang] |
可根据你的应用及评估要求.主要的依据是MIPS,内存大小,接口多少及速率,等. |
[2003-3-24 11:14:24] |
| [问:robin] |
TI has rich algorithms in numerous applications. ADI appears relatively weak in this area. Is it true? What will ADI do to improve? |
[答: extra2] |
ADI also have good accumulatation in basic algorithm, it provide the source code with the develop tools - VisualDSP. And for reference design or solution, ADI also have plenty of 3rd parties over the world. |
[2003-3-24 11:14:27] |
[问: navyjiang] |
对于嵌入式数据采集方面的应用(需要用到FFT处理),是否有必要采用浮点DSP?谢谢! |
| [答:Ksri] |
If you are using a DSP for application that involves vibration control etc where you need a lot of precision, then you need to use a floating point DSP because you need high percision here.
If you are using teh DSP for just temperature sensing etc, then a fixed point DSP is fine.
ADI supports 218x, 219x and Blackfin DSPs for fixed point DSPs. While SHARC and TS support floating point |
[2003-3-24 11:14:59] |
| [问:qin] |
ADI的DSP,有那些型号带闪存的?其容量有多大? |
[答: Li_Chuan] |
By now, we can supply ADMCF32x series for ADC+DSP+Flash, for the General Purpose DSP, we have the plan for the Flash on Chip |
[2003-3-24 11:16:28] |
[问: luoshitu] |
基于DSP芯片而开发的嵌入式操作系统的前景会怎样? |
[答: Craig_Wu] |
DSP在当前的应用领域已经越来越广泛,像ADI的Blackfin和TigerSHARC已经超越了DSP的结构,集成进了越来越多CPU的功能,将来一定会得到十分广泛的应用,如手持终端,工业控制系统,通信等。 随着应用的复杂,操作系统将大显身手。 |
[2003-3-24 11:17:14] |
[问:ys36 63391] |
DSP在测控领域的应用在那些方面比较多 |
[答:Singer _Zhang] |
For example, data transformation,digital filter, data collection, etc. |
[2003-3-24 11:17:19] |
[问: 78590] |
用TIGERSHARCTS101S对SDRAM进行访问时,若页边界为2K时,如何在SDRCON寄存器中进行设定? |
| [答:Ksri] |
TigerSHARC SDRAM controller can be configured using SDRCON and SYSCON registers. The page sizes can be configured in these registers.
The exact programming of the SDRAM is explained in our Application note numbered : EE-178. You can get this at www.analog.com/dsp web link. Visit the Application Notes link to retrieve the above note. |
[2003-3-24 11:17:20] |
| [问:robin] |
how to simulate the boot procedure in the 21065L in the VDSP environment |
[答: extra2] |
You can generate the "ldr" file, and simulate in software environment by the following procedure: Settings -> Load Sim loader -> Boot from PROM -> select the "ldr" file. And then: Debug -> Reset ..... |
[2003-3-24 11:17:23] |
[问:guilin @263.net] |
请问AD用带CAN BUS的DSP吗?能介绍一下吗?我现在用TI的F2407+5409,想换成AD的DSP,请问我该用那一款DSP? |
[答:Singer _Zhang] |
You can choice ADSP-21992. |
[2003-3-24 11:17:58] |
[问:ecnan jing_EBY7E] |
How to perform a 16-point real FFT,Please? |
| [答:extra2] |
We provide the FFT in the VisualDSP as source code. You can check the FFT file in VisualDSP setup directory. |
[2003-3-24 11:18:27] |
| [问:cy2016] |
如何将dsp应用于电机驱动当中来??? |
[答:Amy _Zhang] |
YOU can use ADSP-2199X in motor controll.And you can refer to AN21990-03 and AN21990-05. |
[2003-3-24 11:18:51] |
[问:jose phsiak] |
Can you descible how to implement TCP/IP in this ADSP blue fin series, is there any library to make used of? or is it part of the OS |
[答: Jack_Xue] |
Blackfin is 32Bit Risc Architecture. Now many famouse RTOS support Blackfin platform. Such as Wind River, Nucleus and DSPOS. They all develop TCP/IP protocol into their OS.
Blackfin can realize multiple threads in same time. So you can develop your own TCP/IP in VDK, provided by ADI. The VDK is free. |
[2003-3-24 11:18:51] |
| [问:robin] |
how to interface the cluster bus of six chip Tigersharc to ISA bus |
| [答:Ksri] |
The question is about interfacing 6 TigerSHARCs with ISA bus.
Ans : First let us understand how to interface a TigerSHARC with an ISA bus. You need to have a bridge that interfaces with 16-bit ISA bus host because of the TigerSHARC external bus protocol differences with the ISA bus protocol.
The TigerSHARC DSP external port interface supports a minimum of 32-bits. So, inorder to interface with an ISA bus, there is no seamless interface. The 16-bit ISA interface has to be realized using a CPLD or an FPGA. 16-bit data coming from the DSP may be packed and sent to the TigerSHARC and vice versa.
For interfacing with non ISA 16-bit host, it is still possible by using a CPLD or FPGA to convert the 16-bit data from host to the DSP which is 32-bits.
All the six tigerSHARCs can sit on the same external bus without a bus arbiter because they have the Bus Request and Bus grant signals to communicate with each other |
[2003-3-24 11:19:25] |
| [问:robin] |
What is the data transfer rate on 21535 DSP (e.g. SPI, USB & UART) |
[答: Jack_Xue] |
The following is the speeds and the peak data rates of the 21535 peripherals. For different speeds, there are different peripherals clocks and hence the bandwidths change.
Blackfin DSP at 300MHz, SCLK = 100MHz
SPI : Runs at 100MHz/2 = 50MHz. This implies 50Mbits/sec at SPIBAUD = 1 USB : USB is a standard implementation with USB version 1.1. This supports a maximum speed of 12 Mbits/Sec UART : Runs at 100MHz/16 = 6.6MHz. This implies 6.6Mbits/sec at D=1s
Blackfin DSP at 266MHz, SCLK = 133MHz SPI : Runs at 133MHz/2 = 66.5Mhz. This implies 66.5Mbits/sec at SPIBAUD=1. USB : USB is a standard implementation with USB version 1.1. This supports a maximum speed of 12 Mbits/Sec UART : Runs at 133MHz/16 = 6.6MHz. This implies 8.3Mbits/sec at D=1 |
[2003-3-24 11:19:38] |
| [问:28912] |
32位浮点Tiger SHARC? 处理器的开发环境是否可免费提供?否则单价多少? |
[答:Wu _Zheyi] |
软件开发环境VisualDSP有免费的使用版--Test Driver,你能从华创拿到。另外ADI的包含软件、仿真器和评估板的开发工具一套共1200美金. |
[2003-3-24 11:19:43] |
| [问:robin] |
What is the power consumption on Sleeping Mode and Operation Mode ? |
| [答:Ksri] |
Less than 1mW for Blackfin. |
[2003-3-24 11:19:57] |
[问:guilin @263.net] |
请问AD的DSP与TI的主要区别? AD的DSP的单价和配套开发工具的单价,以及其易用性? 我现在用TI的5409,请问与其对应的AD的DSP是那一种? |
[答:Pang _Feng] |
It needs apple to apple to compare and Please specify both P/N for comparison. But ADI DSPs offer hardware architecture that are closer and easier to implement a DSP algorithm. Things like circular buffers, bit reversing, hardware loops, good DMA, Multiprocessing and peripherals enable ADI DSPs to give good performance over its competitors irrespective of the clock speed. The latest DSPs from ADI – Blackfin and TigerSHARC offer unmatched performance compared to any other DSP available today.
The tools are $1,200.
The ADSP-218x (ADSP-2185) is the same as the TI5409. |
[2003-3-24 11:20:25] |
| [问:robin] |
Do you have reference design on Smart Phone application ? |
[答: Jack_Xue] |
The Smart Phone is on the roadmap. We will provide ARM plus Blackfin core for 3G. |
[2003-3-24 11:20:30] |
| [问:bitwwj] |
我要用到TS的FFT,IFFT,但在ADI网站上没有找到源码,请问在哪能找到?另外VDSP++里的CFFT的源码能提供吗? |
[答:Amy _Zhang] |
Of course ,you can find the FFT,IFFT code on the ADI"s web www.ananlog.com/tigersharc.And Vdsp++ can provide CFFT code. |
[2003-3-24 11:20:37] |
| [问:robin] |
I am not sure TS101 support MIMD or not?If only look the architecture,it looks like MIMD,but...in all of documents,I only see SIMD.Is TS101 only SIMD? |
| [答:Ksri] |
TS101 supports SIMD and VLIW at the same time within the same chip.
To do MIMD, use multiple TigerSHARC DSPs using the glueless Multi Processing feature (that is already built into the chip). Each TigerSHARC would then be able to execute different instructions with Different data (and hence Multiple Instruction Multiple Data). |
[2003-3-24 11:21:20] |
[问:ecnan jing_EBY7E] |
ADSP21xx有无Analog I/O? |
[答:Wu _Zheyi] |
目前ADSP-2199x系列有模拟I/O,其他ADSP218x和219X系列目前没有模拟I/O. |
[2003-3-24 11:21:33] |
| [问:robin] |
Blackfin can work like ARM7,right?But...how?If I have the C program from ARM7,can let VisualDSP help to compile and optimize(especially blackfin is a host)? |
[答: Jack_Xue] |
Yes. Blackfin is a Risc CPU.
VisualDSP supports Ansi C/C++. You can transfer it easily. |
[2003-3-24 11:22:30] |
| [问:lzg_hl] |
请问ADI的DSP是否与TI的DSP有同样的流水线结构?时钟频率最小是多少?如果采用MCU+DSP,请问MCU可以是8位机么?时钟频率最低是多少?谢谢! |
[答: Li_Chuan] |
we both have pipeline, but the architecture is not the same. for example, ADI pipeline has interlock which can prevent the error on some cases happened on TI DSP. the frequency can be very low, for example, you can use a 10M crystal on the board and use the PLL on Chip to supply teh internal working frequency at 1X to 31X. yes, you can use what ever MCU, 8 bits is fine. you can connect the MCU with DSP by UART or SPort, it has no problem with the frequency for MCU |
[2003-3-24 11:22:37] |
| [问:robin] |
The application request a 5,600Kbps data transfer rate between ADC to DSP. Do DSP I/O can manage the high data transfer rate ? |
[答:Singer _Zhang] |
DSP I/O can not process such high data transfer rate. You can use the SPORT interface to process these data. For example, Blackfin DSP"s SPORT can transfer more 25Mbps data. |
[2003-3-24 11:22:47] |
[问: panqun] |
对于实时信号的采集和处理,贵公司的哪一款DSP最适合,为什么?谢谢 |
[答: Craig_Wu] |
目前较为合适的是ADSP-2199x系列,包括ADSP-21990,ADSP-21991,ADSP-21992。该系列DSP包含了一个219x的DSP内核和8路20MHZ的AD转换器。同时还集成了丰富的外设。 |
[2003-3-24 11:22:52] |
| [问:robin] |
When I use the input channel( any peripheral ) of Blackfin DSP, How many is I can get the highest speed? Which channel? |
| [答:Ksri] |
The following is the speeds and the peak data rates of the 21535 peripherals. For different speeds, there are different peripherals clocks and hence the bandwidths change.
SCLK Means Peripheral Clock
Blackfin DSP at 300MHz, SCLK = 100MHz
SPI : Runs at 100MHz/2 = 50MHz. This implies 50Mbits/sec at SPIBAUD = 1 USB : USB is a standard implementation with USB version 1.1. This supports a maximum speed of 12 Mbits/Sec UART : Runs at 100MHz/16 = 6.6MHz. This implies 6.6Mbits/sec at D=1s
Blackfin DSP at 266MHz, SCLK = 133MHz SPI : Runs at 133MHz/2 = 66.5Mhz. This implies 66.5Mbits/sec at SPIBAUD=1. USB : USB is a standard implementation with USB version 1.1. This supports a maximum speed of 12 Mbits/Sec UART : Runs at 133MHz/16 = 6.6MHz. This implies 8.3Mbits/sec at D=1 |
[2003-3-24 11:23:03] |
| [问:robin] |
In ADSP-21161,Why memory size of Bank0 is 62.68M which is different from ADSP-21160?Is it for some special use? |
| [答:Ksri] |
The above comment is not true. For 64-bit addressing in 21161, the memory map for the DSP is as follows :
Block 0 : 0x20000 to 0x21fff = 524288 bits = 512 Kbits Block 1 : 0x28000 to 0x29fff = 524288 bits = 512 Kbits
The total internal memory is 1Mbits. The above figure of 62.68 Mbits is not correct. |
[2003-3-24 11:23:24] |
| [问:robin] |
Who are your partners in China? |
[答: Li_Chuan] |
We have a good number of university and industry partners in China offering different solutions. Call toll free number 800-810-1742 for details. |
[2003-3-24 11:23:32] |
[问:yao yunxin] |
DSP与现在的16位单片机有多大的区别,性能价格比如何 |
[答:Pang _Feng] |
The MCU is mainly used for control while the DSP is used for realtime data processing. |
[2003-3-24 11:23:37] |
[问:guilin @263.net] |
请问AD用带CAN BUS的DSP吗? |
| [答:extra2] |
ADSP-21992 is the DSP with CAN bus, and with the onchip 14bit 20MSPS 8 channel high preformance ADC. It"s 160MIPS ADSP-219x core and larger memory. For details, please visit our website or contact local office or disti. |
[2003-3-24 11:23:41] |
| [问:bitwwj] |
贵公司的adsp21160m是否停产了? |
[答:Pang _Feng] |
no |
[2003-3-24 11:23:53] |
| [问:78590] |
如果想按照评估版设置外部电路,贵公司可否提供帮助?如提供相关器件. |
[答: Craig_Wu] |
我们可以提供所有ADI的的元器件,但无法提供所有元器件。如果有些器件买不到的话,我们会提供替换建议 |
[2003-3-24 11:24:23] |
| [问:robin] |
Can you suggest ADI DSP design house for product development ? |
[答: Li_Chuan] |
Yes we have local third parties in China who can provide MPEG4, TTS, G.7xx and other algorithm, Blackfin and TS PCI card. Please contact CAST # 800-810-1742 for more information. |
[2003-3-24 11:24:34] |
| [问:bitwwj] |
usb的emulator是否不稳定?与HP的ice相比,哪个更好? |
[答:Singer _Zhang] |
当然,HP PCI ICE更好. 但USB的ICE不是不稳定,而是速率相对慢一些. |
[2003-3-24 11:24:36] |
| [问:samire] |
请解释一下什么叫多种中断? |
[答:Singer _Zhang] |
可以理解为多种外设具有多种中断. |
[2003-3-24 11:25:40] |
| [问:robin] |
Which support can be provided freely by ADI for MPEG4 on Blackfin? |
| [答:extra2] |
We can provide some examples for many application with no charge. But for commercial ones, you should contact us or our 3rd party. We also have domestic 3rd party working on MPEG4 solutions, it"s much cheaper. |
[2003-3-24 11:26:18] |
| [问:78590] |
用TigerSHARC DSP与计算机通信扩展为哪种方式较好.如何得到该种芯片更多的编程实例 |
| [答:Ksri] |
The question is about using TS for communicating with the PC. Also, wants to know how to get more example codes ?
Ans :
1. To communicate with PC, there are a couple of methods of doing this. You can communicate using an UART for control and display of data in which case use the standard UART transceiver 16550 on the TigerSHARC external bus and interrupts.
If you want to communicate with the ISA bus of the PC, then use an external logic (CPLD or FPGA) for interfacing with TS bus.
For more example questions, please refer to our website www.analog.com/dsp and click on code examples. We also supply some example programs with our VDSP++ toolset for TS |
[2003-3-24 11:27:09] |
| [问:robin] |
I used ISA bus in my design and it is a kind of 16 bit wide bus. ADSP TS101"s bus normal word is 32 bit and no smaller settings.Could ADSP-TS101 boot from 16 bit wide host. How can I realize it? |
[答: Jack_Xue] |
The TigerSHARC DSP external port interface supports a minimum of 32-bits. So, inorder to interface with an ISA bus, there is no seamless interface. The 16-bit ISA interface has to be realized using a CPLD or an FPGA. 16-bit data coming from the DSP may be packed and sent to the TigerSHARC and vice versa.
For interfacing with non ISA 16-bit host, it is still possible by using a CPLD or FPGA to convert the 16-bit data from host to the DSP which is 32-bits. |
[2003-3-24 11:27:21] |
| [问:robin] |
Do you have any Handset solution which use 21532 DSP as a core DSP? |
[答: Craig_Wu] |
Please Contact GEHK-Shanghai 021-63917700。 Vicky is in charge of this. |
[2003-3-24 11:27:37] |
| [问:qin] |
ADI的DSP和TI的DSP在性能,价格和编程开发上有何差别? |
[答:Pang _Feng] |
It needs apple to apple to compare and Please specify both P/N for comparison. But ADI DSPs offer hardware architecture that are closer and easier to implement a DSP algorithm. Things like circular buffers, bit reversing, hardware loops, good DMA, Multiprocessing and peripherals enable ADI DSPs to give good performance over its competitors irrespective of the clock speed. The latest DSPs from ADI – Blackfin and TigerSHARC offer unmatched performance compared to any other DSP available today. Also, ADI DSPs are a lot simpler to program in assembly then TI DSPs.
In terms of pricing, it depends on the performance. |
[2003-3-24 11:27:40] |
| [问:bigox] |
你们的产品比TI的同类产品的竞争力在什么地方 |
| [答:Ksri] |
It needs apple to apple to compare and Please specify both P/N for comparison. But ADI DSPs offer hardware architecture that are closer and easier to implement a DSP algorithm. Things like circular buffers, bit reversing, hardware loops, good DMA, Multiprocessing and peripherals enable ADI DSPs to give good performance over its competitors irrespective of the clock speed. The latest DSPs from ADI – Blackfin and TigerSHARC offer unmatched performance compared to any other DSP available today. |
[2003-3-24 11:27:56] |
| [问:robin] |
How many customer use 218x to develop the applicaiton of MPEG-2 Decode/Encode ? |
| [答:extra2] |
We have lots of customers using 218x DSP for MPEG-2 audio process. For video process, you should choose our Blackfin series DSP, such as ADSP-21535/ ADSP-21532. |
[2003-3-24 11:28:25] |
| [问:robin] |
Will ADI have a DSP with flash memory for industrial control apps? |
[答:Singer _Zhang] |
We have the ADMCF3xx products for industrial application. These products included the Flash memory. |
[2003-3-24 11:29:09] |
[问:zhuo zhihai@bit .edu.cn] |
主频300MHz的TigerSHARC访问外围器件的最大吞吐率是多少? |
[答: Jack_Xue] |
The host port supports more than 100M*64Bit throughput.
And the four link ports support 4* 250M*8Bit. |
[2003-3-24 11:30:08] |
[问: fanyong-10 @sohu.com] |
Blackfin DSP的典型工作环境有什么特殊要求? |
| [答:extra2] |
Blackfin系列DSP有工业级和商业级芯片,可以满足你不同的需求。 并且由于DSP本身的功耗特别小,对工作环境没有特别的要求。 |
[2003-3-24 11:30:37] |
| [问:44630] |
21535的USB接口如何使用? |
[答: Wu_Zheyi] |
21535提供一个USB1.1兼容的设备类接口,支持直接与主机系统相联接。支持所有的USB数据传输类型如控制、批量、中断和等时,并为数据传输提供了存储器映射的buffer. |
[2003-3-24 11:30:39] |
| [问:robin] |
Can you provide a C complier program with DSP development tools ? |
[答: Wu_Zheyi] |
VisualDSP软件开发环境中包含的C或C++编译器. |
[2003-3-24 11:31:31] |
| [问:ljp] |
请介绍一下微信号结构的作用和优点。ADI和INTEL共同开发手机处理器,是否也是用这一结构? |
[答: Jack_Xue] |
The MSA architecture combine the advantage of DSP and CPU function. It can process DSP signal and Data stream.
You can define your Char[], Short[], Int[] data type.
Very flaxible in data processing.
So you can save your hardware cost in system design. |
[2003-3-24 11:32:38] |
| [问:xbao] |
有能支持USB2.0的DSP芯片吗 |
| [答:extra2] |
Currently, we have USB1.1 onchip DSP and provide the device driver, such as ADSP-21535. For USB2.0, we will integrate it in the blackfin DSPs in the future. |
[2003-3-24 11:33:10] |
| [问:bitwwj] |
TS可以用flowthrough的ZBT sram,那是否可以用flowthrough的SBSRAM?pipeline的sram呢? |
| [答:Ksri] |
The question is about the throughput when using SBSRAM in TigerSHARC DSP.
Ans : The TigerSHARC DSP supports external port widths of either 32-bits or 64-bits. Assuming an external port width of 64-bits or 8-bytes, the TS external port runs at 100MHz. This means that the total throughput (max) is 800Mbytes / sec.
The TS supports pipelined external port access and it supports the pipeline upto 4 cycles. |
[2003-3-24 11:33:13] |
[问: fanyong-10 @sohu.com] |
L2 SRMA是否没有cache? |
[答: Jack_Xue] |
No. L1 can be set to be cache or SRAM.
L2 is mapped to Cache to speed its access time. |
[2003-3-24 11:33:22] |
| [问:33841] |
请主持人谈谈DSP与ARM的区别和应用场合。谢谢 |
[答:Singer _Zhang] |
DSP is used for signal processing, and RISC MCU is used for data processing and controlling. Blackfin DSP included the RISC architecture, but it’s the totally different core as ARM, that’s the instruction is totally different. If you have the ANSI C program, you can directly implement it on Blackfin DSP. |
[2003-3-24 11:34:49] |
[问:ecnan jing_EBY7E] |
Sometimes the code exists in external ROM,do I need a parallel interface to do bootload? |
[答: Craig_Wu] |
Depends on what DSP are you using. For the recent released DSPs, you have lots of choice to load the program. 8 Bit bus, 16 bit bus, SPI, host boot, etc.
you also can use a parallel interface to exec. the instruction in external ROM, but it is very slow. |
[2003-3-24 11:35:47] |
[问: fanyong-10 @sohu.com] |
Blackfin DSP的功能扩展应用方面有什么特殊的要求? |
[答: Jack_Xue] |
Blackfin is almost a System On Chip. You can see many interfaces in Blackfin. So you need not expand your interface.
Of course, you can expand your interface through memory map IO. So you can connect your FIFO, NAND Flash to Blackfin. |
[2003-3-24 11:35:51] |
| [问:robin] |
When I used the ADSP-21990, How to use the PFs(I/O pins) as external interrupt resource? Specially for more pins. |
[答:Singer _Zhang] |
You can refer to “FLAG IO(FIO) PERIPHERAL UNIT” on ADSP-2199x Mixed Signal DSP Controller Hardware Reference on 20-1 for detail setting. |
[2003-3-24 11:36:26] |
[问: fanyong-10 @sohu.com] |
Blackbin DSP的性价比与其它产品相比怎样? |
| [答:Ksri] |
The question is to compare the perf. and price of BF DSP over other DSPs.
Ans : Blackfin today offers 300MHz at 600 MMACs performance. This is the highest performance in the fixed point DSP processors for many price sensitive and power sensitive applications. Blackfin DSP also has a lot of onchip memory upto 2.5 Mbits in 21535 and upto 800Kbits in 21532 DSPs.
The price of 21535 is in mid $20 and 21532 is $9.99 for 10K unit volumes. |
[2003-3-24 11:37:02] |
[问:xingstar @163.net] |
您好:我有个纠缠了很多天的问题:用c语言编写,程序的.cmd文件怎么写?ccs里RTDX具体在哪些方面使用?谢谢 |
| [答:extra2] |
VisualDSP的编译环境比CCS更为友好,有图形化的界面帮助你更快速的编写连接描述文件(类似TI的CMD文件),可以提供更方便的外围端口软件仿真。你可以去ADI公司的网站下载90天免费的全功能的试用版。 |
[2003-3-24 11:37:18] |
[问:xingstar @163.net] |
如何用DSP来设计用户电话系统? |
[答: Jack_Xue] |
You can use DSP to implement Modem, Voice Codec, and other telephony protocol.
It is a very petential market for Voice and Video over IP in China. The DSP is the best solution for these markets. |
[2003-3-24 11:37:42] |
[问:xingstar @163.net] |
如果用c 编的话,应该注意什么 |
[答: Wu_Zheyi] |
用C编程序,主要注意效率的问题,建议程序的控制和框架用c写,对时间有要求的部分如算法等用汇编写,adi dsp的汇编语言是代数式的,与c比较类似,比较容易写和读。 |
[2003-3-24 11:37:48] |
| [问:robin] |
How do I select a right DSP? What is the first step? |
[答:Pang _Feng] |
First of all, you need to know the precision of your application, whether 16 bits or 32 bits. ADI has fixed point DSPs (16-bit) and floating point DSPs (32-bit). Next, among the 16-bit and 32-bit DSPs, there are variations between speed, on-chip memory, peripherals, and power comsumption. The first step is to go through our selection guide (please visit www.analog.com or email dsp.support@analog.com). |
[2003-3-24 11:38:06] |
[问: jswenwu] |
全套开发系统价格?南京有代理吗? |
[答:Amy _Zhang] |
About $1200.00. And ADI have some distributs in Nanjin,you can contact Chinatronic :(025) 4780044 GEHK:(025)4713796 |
[2003-3-24 11:38:12] |
[问:xingstar @163.net] |
DSP C语言的应用例子 |
[答:Singer _Zhang] |
You can find the some examples in VisualDSP++. |
[2003-3-24 11:38:16] |
| [问:030324] |
ADSP21XXX有无FLASH 产品? |
[答: Craig_Wu] |
目前没有,但ADI会在今年提供内部带可擦除非易失性存储器的产品。 目前你可以使用片外Flash。 SST有和ADIDSP配套使用的Flash |
[2003-3-24 11:38:36] |
| [问:DJBean] |
ADI公司在国内的代表处有那些?怎么样联系? |
| [答:extra2] |
深圳 0755 - 8378 1959 上海 021 - 6426 7009 北京 技术应用中心 800-810-1742 |
[2003-3-24 11:38:53] |
[问:xingstar @163.net] |
代码效率如何 |
[答: Wu_Zheyi] |
要看是何种代码,和本身的优化做得如何。如果优化做得比较好,效率可以超过90%。 |
[2003-3-24 11:39:28] |
[问: navyjiang] |
对于嵌入式数据采集方面的应用(需要用到FFT处理),是否有必要采用浮点DSP?谢谢! |
[答:Singer _Zhang] |
当你不需要很复杂的FFT时,没有必要采用浮点DSP. |
[2003-3-24 11:39:39] |
[问:ecnan jing_EBY7E] |
在我进行数据传输时不想用成本较高的FIFO,这样对传输速度有何限制? |
| [答:Ksri] |
Qn : The qn is to use inexpensive FIFO for data xfer. What is the limitation on the transfer speed ?
Ans : I presume that you are refering to a FIFO connected on the EP of the DSPs. The external port can run in slower speeds with asynchronous handshake mechanisms to interface with slwoer FIFOs and peripherals. There is no limitation on the speed itself. |
[2003-3-24 11:39:52] |
[问:yao yunxin] |
VHDL在什么领域用的较多 |
[答:Wu _Zheyi] |
在FPGA或CPLD,ASIC的设计中应用居多。 |
[2003-3-24 11:40:20] |
| [问:ljp] |
开发工具VisualDSP++是否可以多次注册?为什么要注册? |
[答: Craig_Wu] |
VisualDSP++单机版只支持一台电脑,如果电脑系统损坏的话可以重新注册。注册后才可以没有时限地使用VisualDSP。 否则只能使用30天 |
[2003-3-24 11:40:37] |
[问: 030324] |
ADSP21XXX系列产品的开发器是否兼容? |
[答: Wu_Zheyi] |
是。 |
[2003-3-24 11:40:47] |
[问:xingsta r@163.net] |
请提供一些在超声领域的应用方案。谢谢! |
[答:Pang _Feng] |
For Ultrasonic, the TigerSharc DSP is the best selection. For the full solution to this, please contact the ADI China office, china.dsp@analog.com |
[2003-3-24 11:40:52] |
[问:guilin @263.net] |
请问AD-21992,中断是否可以嵌套? |
[答:Singer _Zhang] |
可以嵌套.但你要注意进入中断后,处理好多个中断源之间的关系. |
[2003-3-24 11:40:59] |
| [问:robin] |
Can you provide a parallel port interface on 21535 DSP ? |
[答: Jack_Xue] |
You can use memory map IO to realize your parallel port.
Blackfin has four banks memory address. You can use any address to reach your external device. |
[2003-3-24 11:41:20] |
| [问:robin] |
If DSP Tools have problem, the repairment L/T will take a long time. How to reduce the L/T ? |
[答:Pang _Feng] |
In order to provide high quality of service, the tools need to be sent back to the US for repair where we have a tight Quality Control. Unfortunately, this task takes time and hence requires a L/T. |
[2003-3-24 11:41:27] |
| [问:qin] |
EZ-KIT评估伴的价格是多少? |
[答:Amy _Zhang] |
You can check with ADI"s distribute: GE-HK : +86-10-6580 2113-6 Chinatronic : +86-10-6441 3113 For additional questions, please contact ADI office directly. |
[2003-3-24 11:41:40] |
| [问:robin] |
What is the technical support on both Disti & ADI in China ? |
| [答:extra2] |
ADI have tool free support center: 800-810-1742 We have 5 disti in China, please contact local ADI office or disti. |
[2003-3-24 11:42:06] |
| [问:robin] |
Are there the flash memory DSP in ADI DSP family? Does ADI have the flash chip plan? |
[答:Wu _Zheyi] |
Now,ADI only have ADMCF3xx in motor control segment.ADI will release Flash memory DSP in the near future. |
[2003-3-24 11:42:12] |
| [问:kelenet] |
请问你们的这种新技术的主要优势在哪里? |
| [答:Ksri] |
Qn : What is the main advantage of your new technology
Ans : The main advantage of the new technolgy to the customer is the cost saving and increased performance.
Blackfin : This new technolgoy offers tremendous performance 300MHz today with a roadmpa to 1GHz iun the future. This means 600 MMACs performance today. There are also microcontroller features and power sAVING through dynamic power management features. This means that customers will have high integration in their DSPs.
TigerSHARC : This new technolgiy in DSP offers high performance at 300 MHz, 6Mbit of onchip SRAM, onchip SDRAM controller, high external port and link port bandwidths and very high vector performancer for communication and 3G base station applications |
[2003-3-24 11:42:31] |
| [问:robin] |
What is the advantage on ADI DSP compare with TI DSP ? |
| [答:Ksri] |
It needs apple to apple to compare and Please specify both P/N for comparison. But ADI DSPs offer hardware architecture that are closer and easier to implement a DSP algorithm. Things like circular buffers, bit reversing, hardware loops, good DMA, Multiprocessing and peripherals enable ADI DSPs to give good performance over its competitors irrespective of the clock speed. The latest DSPs from ADI – Blackfin and TigerSHARC offer unmatched performance compared to any other DSP available today. |
[2003-3-24 11:42:45] |
| [问:bitwwj] |
我们原来买了开发21060的套件,emulator是summit ice,发现它不能emulate TS,是不是需要升级软件来支持ts?还是必须买新的emulator? |
[答: Craig_Wu] |
需要购买VisualDSP++3.0 for TigerSHARC. 因为两者的软件是不同的.仿真器可以通用. 你也可以购买现在正在促销的TS开发工具套件. 详情请联系ADI办事处或GEHK |
[2003-3-24 11:43:07] |
| [问:robin] |
Can ADI provide support (demo and sample codes) for voice recognition, video encoding/decoding, telephony, audio, etc. ? |
[答: Li_Chuan] |
ADI provides a number of example programs for Blackfin and etc. in its website. These are simple DSP kernels like the fft, dct, idct etc. For application codes like MPEG, ADI third parties offer the code. The list of 3rd parties are available at the ADI website under DSP collaborative. if you are interested in this, you can contact with us later on. |
[2003-3-24 11:43:23] |
| [问:robin] |
what is the interrupt latency for the VDK |
[答: Jack_Xue] |
Less than 100 Cycles. |
[2003-3-24 11:43:28] |
[问: 030324] |
现在USB口由于其速度快切便捷,请问AD DSP有无支持USB? |
[答:Pang _Feng] |
The Blacfin (only ADSP-21535) DSPs supports USB 1.1 at max of 12MHz. |
[2003-3-24 11:43:33] |
| [问:44630] |
我使用VisualDSP++3.0开发Blankfin,几行代码常生成几兆大小的*.ldr文件,请问这是为什么? |
[答:Singer _Zhang] |
这是产生了错误.你需要重新启动VisualDSP++. |
[2003-3-24 11:43:34] |
| [问:robin] |
How to connect 3.3V IO DSP with other 5V chips? Which signals could be connect to 5V signal line directly? |
| [答:extra2] |
You can refer to EE-103 for details connection. One needs to use buffers to interface signals of different IO voltages.
For more support, please contact local ADI office or Beijing toll free center 800-810-1747/2 |
[2003-3-24 11:43:38] |
| [问:robin] |
Can blackfins realize the whole encode and decode arithmetic of MPEG-4? |
[答: Jack_Xue] |
Yes. MPeg4 CIF4 format. Real time for encode and decode. |
[2003-3-24 11:44:12] |
| [问:bitwwj] |
我们实验室针对贵公司的DSP作应用开发,是否可以跟你们合作办个联合实验室,使ADI dsp在大学推广开? |
[答: Li_Chuan] |
you can contact with us later, we have now about 20 university labs. |
[2003-3-24 11:44:19] |
| [问:robin] |
The reference voltage of ADSP-2199x ADC is 1.0V, how to convert large dynamical input? |
[答:Singer _Zhang] |
You may change the large dynamical input to 1.0 using periphery. |
[2003-3-24 11:44:59] |
| [问:robin] |
VDSP++ 3.0 for 21xx doesn"t support simulate 2199x now. How can we siumulate a 2199x DSP in VDSP? |
[答: Craig_Wu] |
As ADSP-2199x DSP use ADSP-219x core, you can simulate with VDSP++ 3.0 for 21xx. Hence the entire program can be verified on the 219x simulator. |
[2003-3-24 11:45:10] |
| [问:robin] |
Now,most of ADSP only have 3.3v interface.But,if we need output data to 5v RAM(or Host CPU),how to do? |
[答:Amy _Zhang] |
You can refer to EE-103 for details connection. One needs to use buffers to interface signals of different IO voltages. |
[2003-3-24 11:45:12] |
| [问:robin] |
Is there possible for 2199x to increase caputure function which is useful in control application? |
[答:Pang _Feng] |
You can use that easily with the Timer in 2199x, or you can use I/O ports with interruption to capture that. |
[2003-3-24 11:45:15] |
[问:xingsta r@163.net] |
如果购买了产品,对于系列配套产品的升级,费用怎么样? 还是可以免费升级?对于技术支持虚不需要“购买”技术支持? 该产品的模块化到达什么程度?如果要自行开发底层的部分模块,会不会有很大难度?谢谢。 |
[答: Wu_Zheyi] |
对于技术支持方面,我们是不收取任何费用。 关于开发工具的升级问题,目前是免费的。 |
[2003-3-24 11:45:23] |
| [问:robin] |
Sometimes there are not too stable on VISUALDSP++ when all kinds of ADSP installed in one computer,Is there some suggestions on the installment of VISUALDSP++? |
[答:Amy _Zhang] |
It should not be a big problem, in less case, only few customer may face this. We recommend you to install the VDSP in the time sequence as the product released. |
[2003-3-24 11:46:08] |
| [问:robin] |
How many boot modes in Blackfin DSP? How to operate these boot modes? |
[答: Jack_Xue] |
4 Mode.
8Bit/16Bit Flash. 8Bit/16Bit Serial EPROM.
You can define your boot mode by three BMODE[2:0] input pins. |
[2003-3-24 11:46:12] |
[问: navyjiang] |
对于嵌入式数据采集方面的应用(需要用到FFT处理),是否有必要采用浮点DSP?谢谢! |
| [答:extra2] |
这个需要看你的具体应用,如果需求精度比较高,最好选用浮点DSP,比如我们的ADSP-2106x/ADSP-2116x系列DSP,性价比非常合理。 |
[2003-3-24 11:46:35] |
[问: samire] |
DSP的发展中,处理速度,存储容量,成本和外设接口,那一个更重要? |
| [答:Ksri] |
Qn : Which is the important DSP for the development of DSP sw for processing speed, memory etc.
Ans : We have different DSPs for different applications keeping in mind the price, features needed etc.
TigerSHARC : This DSP has a lot of memory 6Mbit and high performance 300MHz, 2400 16-bit MMACs or 600 32-bit MMACs, DMA controller and multiprocessing features used for MP applications like 3G base station, defence, radar, Sonar, medical imaging etc.
21161 : This DSP is used for audio and has 100M Hz performance giving 200MMACs at 32-bit performance. There are good peripherals like SPI, Serial Ports, IIS, SDRAM controller etc with DSP SW algorithms
Blackfin : For portable communications and control applications this is very good. It offers 300MHz at 600 MMACs performance with around 2.5 Mbits of memory. It gives Serial ports, UART, PCI, SPI, USB peripherals.
Depending on your application, you have to choose the right DSP from the above. Our DSP selection guide will give more information as well. Please visit our URL at http://www.analog.com/Analog_Root/static/library/ dspManuals/genDspPublications.html |
[2003-3-24 11:47:09] |
| [问:robin] |
In MPEG 4 project development used Blackfin family,Can the processor capacity of ADSP21535 or ADSP21532 up to 30 frame or more speed? |
[答: Jack_Xue] |
YEs. We have provided the demo for this function. It is 30 frames per second for CIF format. |
[2003-3-24 11:47:17] |
| [问:robin] |
What"s the procedure of booting ADSP-21065L with SDRAM using software overlay? How to initialize the SDRAM and when will the overlay code be put into SDRAM? |
[答: Craig_Wu] |
Overlay is good method to solve space problem in DSPs. For the detail procedure, you can look for application notes, such as ee-166,EE-66. The boot procedure is no different from the booting of normal code. Only after booting does the overlay come into the picture. |
[2003-3-24 11:47:28] |
| [问:robin] |
In MPEG 4 project development used Blackfin family, what is the max image format ?is 368*240 in IC exhibition.maybe support more format?and is real time improve? |
[答: Jack_Xue] |
Yes. It is real time to process MPEG4 CIF format. Now 21532 and 21535 can run under 300MHZ. In the roadmap of Blackfin, it can process VGA and D1 video format. |
[2003-3-24 11:47:57] |
| [问:robin] |
How to protect my code when using DSP without Flash/ROM inside? |
[答: Jack_Xue] |
Oh, unfortunately, It is difficult to protect the source code using DSP without Flash/ROM inside. Various techniques like Huffman coding needs to be done in SW at present to protect code. |
[2003-3-24 11:48:33] |
[问: 030324] |
在用16BIT 定点DSP 产生SIN COS 正交信号时,经常发现正交不好,有无好的办法? |
| [答:extra2] |
这种问题可能是由于精度和数据长度的问题,你可以尝试产生更长的数组来模拟sin cos信号,或者选用SHARC系列浮点DSP来提高精度。 |
[2003-3-24 11:48:52] |
| [问:robin] |
In ADI adsp family,how to solve sofeware encryption? Will ADI consider that ROM is set in adsp ? |
[答:Singer _Zhang] |
In Blackfin 21532 will build in 32Kbyte ROM, so you can do encryption in this kind of DSP. |
[2003-3-24 11:49:18] |
| [问:robin] |
The TIGERSHARC"s reset signal is particular one. I have to get it with PLD. Is there any better advice for TIGERSHARC"s reset? |
| [答:Ksri] |
The reason why one needs a PLD for reset is because of the stringent timing requirements. There is no simple way out to solve this. The EZ-kit schematics certainly give a good input on this about the reset design. |
[2003-3-24 11:49:35] |
[问: fanyong-10 @sohu.com] |
Blackfin DSP对MPEG的处理速度最高能达到多少?功耗是否稳定? |
[答: Jack_Xue] |
Blackfin 300MHZ to process 30 Frames CIF. Its power consumption is less than 700mW. |
[2003-3-24 11:50:06] |
| [问:robin] |
DO you hv cheap development tools? |
[答: Wu_Zheyi] |
开发工具套件的价格是1200美金,没有更便宜的了 |
[2003-3-24 11:50:24] |
| [问:78590] |
如果想请教有关TS的具体技术性问题,可否留下相关技术工程师的EMAIL. |
[答: Amy_Zhang] |
Technical support can be obtained through ADI at the following hotline in China toll free : 800-810-1742. OF course you can call this number to get the email. |
[2003-3-24 11:50:53] |
[问:xingsta r@163.net] |
c语言代码编程效率高,但编译的目标码的效率不是很高,且有安全问题需要验证。有好方法验证吗? |
| [答:extra2] |
You can build some examples to run under Visaul DSP. You will find that you will get a good optimized results. |
[2003-3-24 11:51:34] |
| [问:bitwwj] |
刚才问的问题不是用TS内部的FIFO,而是我在TS外部接了一个FIFO,一个SRAM,我想将FIFO的数据通过DMA方式传给SRAM,如何作? |
[答: Li_Chuan] |
you can regard the FIFO as external memory and just config the DMA and start. |
[2003-3-24 11:51:50] |
[问: fanyong-10 @sohu.com] |
DMA传送数据速度在一维和二维情况下最高可达多少?功耗和电压情况呢? |
| [答:Ksri] |
The question is about the maximum DMA throughput in 1-D and 2-D. There is also a question on power consumption and voltage.
Ans : There is no reference to the specific DSP partnumber you are refering to here. The figures vary from part to part. But in any case, for any DSP, the DMA controller can transfer data at the rate of internal core clock. So, every core clock cycle, the DMA will be able to transfer data into internal memory provided there are no memory conflicts and no bus conflicts. This is irrespective of 1-D and 2-D DMA. For instance in SHARC, the internal bus is at 100MHz and TS it is at 300MHz and hence the DMA will operate at that speed.
Power and voltage figures are available in our data sheets available in ADI website. |
[2003-3-24 11:52:01] |
| [问:robin] |
For application of Blackfin DSP in multimedia, such as video monitor for safety system, can ADI provide some mature solutions which can be into production directly? |
[答: Li_Chuan] |
ADI is a DSP supplier. However, ADI also has a number of software modules needed to build a customer specific solution. A number of 3rd party modules also help the customers. Please visit our website for more information about this. |
[2003-3-24 11:52:32] |
| [问:robin] |
How many computers can be supported to install Visualdsp++3.0 by one license? |
[答: Wu_Zheyi] |
如果你购买了VisualDSP3.0一个License,你可以在ADI的网站上申请3个 license,可以安装在3台机器上。 |
[2003-3-24 11:52:42] |
[问:lydia 0213] |
滤波器设计后的数据如何输出到DSP中?以什么样格式或代码? |
| [答:extra2] |
可以直接用数组或者数据文件的方式输出到DSP中,可以用十进制或者十六进制等格式。 |
[2003-3-24 11:52:59] |
[问: fanyong-10 @sohu.com] |
请提供一些在光通信和模拟信号是是监测与控制方面的应用例子,谢谢。 |
[答:Singer _Zhang] |
在光通讯领域,可以用DSP在光放大器,EDFA,光收发模块等应用上. |
[2003-3-24 11:53:30] |
[问: fanyong-10 @sohu.com] |
ADI DSP产品使用几种不同接口速度上的差异怎样? |
| [答:Ksri] |
The question is about ADI DSPs have several interfaces. What is the speed difference among them ?
Ans : The interfaces have different speeds. Please refer to our data sheets for the specifications of these. For instance, the serial ports on SHARC can run upto 50MHz, while those of Blackfin can run upto 100mHz.
Similarly, the external port of TS runs at 100MHz while the external port of SHARC also runs at 100MHz in 21160.
Please visit our data sheets for more information |
[2003-3-24 11:53:48] |
[问:lydia 0213] |
声音的相关处理在您的系统中如何实现: 1. 时间拉长(不变调)。 2. 变调(播放时间不变)。 3. 语音指令(语音命令的识别)。 |
[答: Jack_Xue] |
If you need above technique, we can help you to find the related third party.
Just call ADI Beijing DSP call center. |
[2003-3-24 11:54:28] |
[问: mike-nee @public1.p tt.js.cn] |
目前我们要做一个电力仪表,想用ADSP-219XX,能否用其实现50HZ的40次谐波运算? |
[答: Craig_Wu] |
对于这个问题我们目前不能做出明确地回答,我们会在做过软件测试评估后给您明确地回答.您也可以致电ADI上海办事处询问具体情况 |
[2003-3-24 11:54:53] |
[问: 78590] |
用TS访问SDRAM时,在SDRCON中所能设置的最大页边界为1K,当超过1K时,如何处理? |
| [答:Ksri] |
The question is about configuring SDRCON and SYSCON registers for SDRAM confugration
Ans : You can configure the SDRAM of TigerSHARC using the SDRCON register. You can configure for different page sizes subject to certain limits. Please refer to EE-note EE-178 for more information on this. You can get his from our website at www.analog.com/dsp and visit Application Notes link for the same |
[2003-3-24 11:55:22] |
| [问:robin] |
Is it possible to embedded flash memory on DSP to improve end_products security? |
[答: Li_Chuan] |
Oh, unfortunately, It is difficult to protect the source code using DSP without Flash/ROM inside. Various techniques like Huffman coding needs to be done in SW at present to protect code. |
[2003-3-24 11:55:34] |
| [问:robin] |
What"s the efficiency of C compiler for ADI 4 series DSPs? How to optimize my C code? |
[答:Pang _Feng] |
The C compiler from ADI is in a pretty good shape. How good the compiler generates assembly output is also a function of how good code is written in C. While a 100% assembly implementation is the best, we have some benchmarks of standard algorithms like Dolby AC-3, where the MIPS out of compiler is just 1.7 times more than the MIPS out of complete assembly code with 100% C implementation. |
[2003-3-24 11:55:37] |
| [问:robin] |
Is there a simple and effetely method to implement communication between DSP and PC? |
[答: Craig_Wu] |
It varies from DSP to PC. For instance, in Blackfin DSP, there is an onchip UART that could be used with a transceiver to communicate with PC. For DSPs like 21065L etc., an external transceiver is required to communicate. In any case, it is possible and is easy. |
[2003-3-24 11:56:55] |
| [问:87913] |
Which are the advantages compare ADI"s TigerSHARC with TI"s C64x? |
| [答:Ksri] |
TigerSHARC at 300MHz offers 2400 16-bit MMACs. TI DSP at 600MHz offers upto 2400 16-bit MMACs. Given that the raw MMACs are the same, a lower frequency 300MHz, TigerSHARC offers easier, simpler and inexpensive system solution compared to a higher frequency part.
The TS DSP has a much much smaller code foot print compared to TI DSP that means small amount of memory is sufficient for storing program. At the same time TS has 6 Mbits of onchip memory.
More over TS can also do a lot of accelaration functions for viterbi and turbo codes in software in real time that adds a lot of value in the system performance.
Apart from the above raw MMACs, TigerSHARC offers superior performance through complex arithmetic support, large onchip memory, small code density, glueless multiprocessing support through cluster bus and link ports. |
[2003-3-24 11:57:29] |
[问:lydia 0213] |
在设计中,我应用多片DSP协调工作,现我是采用一片MCU来上载程序并进行DSP之间的管理。如我想省去MCU,DSP之间的协调有什么好的方法? |
| [答:extra2] |
ADI的DSP支持比较好的多片处理系统,尤其是SHARC和TigerSHARC系列DSP,他的内置式的总线管理,共享的内置memory, 以及LinkPort 对于多片处理都十分有效。 SHARC/TigerSHARC可以进行由其他DSP引导的启动,可以通过DMA的方式进行数据的交互,并且VisualDSP提供了多片系统的仿真,调试。 |
[2003-3-24 11:57:37] |
[问:lydia 0213] |
我该如何实时调整或改变DSP的运算? |
[答: Li_Chuan] |
你的意思是否是可以在线改变dsp中的算法。若是,你只需load不同的程序即可 |
[2003-3-24 11:57:44] |
| [问:robin] |
A rumor says ADI will discontinue Sharc development. Is it true? |
[答: Craig_Wu] |
No. Sharc family will still continue. The latest one is ADSP-21161 |
[2003-3-24 11:57:45] |
| [问:robin] |
Why 2199x have no simulation?It makes some difficults on learning 2199X without hardware and debugger tool. |
[答:Pang_Feng] |
The 2199x has a 219x core so you can use the 219x simulator in VisuaDSP++ 3.0 to simulate the 2199x. |
[2003-3-24 11:58:09] |
| [问:bitwwj] |
您刚才给的下载TS cFFT 代码的网址不对,请给个正确的地址,谢谢。 |
[答: Amy_Zhang] |
抱歉,你可以在Visualdsp++的安装目录下找到该代码。而你在网址能下载IIR,FIR,DCT等代码。 |
[2003-3-24 11:58:36] |
[问:lydia 0213] |
如何进行双向数据传输?它有什么条件?速度能达到多少? |
[答:Singer _Zhang] |
不同的外设有不同的方式和不同的速率.你可以根据你的应用去选择DSP.比如ADI的SHARC DSP的Link Port可以进行双向数据传输,它的速率可以达到50MHz/S. |
[2003-3-24 11:58:37] |
| [问:robin] |
Is there a stable OS fit for ADI"s Blackfin DSP? Price? |
[答: Wu_Zheyi] |
There are a good number of Operating Systems ported onto Blackfin. These are listed in our website. For instance our own VDK a simple kernel is bundled with VDSP++ tools that is used for simple applications. Complex applications require VxWORKS type of OS which is also available on Blackfin. One needs to contact that concerned company for support. ADI supports only VDK. Refer to ADI website for complete listing. |
[2003-3-24 11:58:43] |
| [问:bitwwj] |
用hp pci ice理论上可以emulate几片ts?实际上几片? |
| [答:extra2] |
可以支持8个TS,仿真速率达到50Mbps。 |
[2003-3-24 11:58:53] |
[问: 78590] |
DMA访问中一维和二维如何理解? |
| [答:Ksri] |
The question is about understanding the 1-D and 2-D DMA accesses ?
The 1-D and 2-D DMAs are very simple to understand. 1-D is like a single array in C : int a[100].
2-D DMA is like a 2-dimensional array in C : int b[100][100] ;
In 1-D DMA, there is only one index pointer while in 2-D DMA, there are 2 index ponters and 2 counts.
For more information, please refer to our user manals on DMA |
[2003-3-24 11:59:16] |
[问:lydia 0213] |
双向数据传输的速度有多高?它取决于那些因素或条件 |
[答: Li_Chuan] |
what do you mean about which DSP and which peripheral? |
[2003-3-24 11:59:18] |
[问:lydia 0213] |
什么算法编码效率高比较 |
[答: Jack_Xue] |
The algorithm which need Parellel Data processing will have more DSP efficiency.
Before your optimization, you must know your dsp data flow chart. Then using the special instruction to save your cycle.
The optimization technique will include SIMD, hardware loop, flexible addressing, and good DMA data transfer. |
[2003-3-24 11:59:26] |
| [问:robin] |
As price of ADSP toolkit are yet expensive to some small customer in china, what about do ADI think these cases ? How do ADI prepere to ? |
[答: Amy_Zhang] |
ADI offers high quality VDSP toolset at a very attractive price. Price is based on quality. Good toolkit can shorten your design time. Moreover, there are a number of features like statistical profiling, VDK etc that will add a lot of value to application development cycle time. |
[2003-3-24 11:59:30] |
[问: fanyong-10 @sohu.com] |
未来DSP发展的主要市场是哪方面?技术方向主流是什么? |
[答:Singer _Zhang] |
DSP将会集成越来越多的系统级功能,同时性价比越来越高。在多媒体、通讯、便携式、消费品等领域将会有更多的应用。 |
[2003-3-24 11:59:49] |
| [问:87913] |
Does TigerSHARC support frame interruption in DMA block transfer situation? |
| [答:Ksri] |
In TigerSHARC DSP, this is as good as DMA complete interrupt at the end of DMA. We support this feature in TS |
[2003-3-24 12:00:51] |
| [问:robin] |
When does the Evaluation Platform& Emulator of ADSP-21532 available? |
[答: Amy_Zhang] |
The emulator of 21532 has already available, and the evaluation of 21532 will be available next half year. |
[2003-3-24 12:01:44] |
[问:lydia 0213] |
我公司正准备研发100M以上的数据采集系统,选用哪一种型号比较合适。 相关的开发系统的型号、怎么能得到?谢谢! |
[答: Jack_Xue] |
TS101 can fit this high speed data input.
You can buy ADSP-TS101s tool through DISTI. |
[2003-3-24 12:01:52] |
| [问:robin] |
Does ADI have some application schemes about DSP ?If do,how to provide the application scheme? |
[答: Craig_Wu] |
ADI provides DSP selection guides that gives details of the DSPs and their target application segments. This is available in our website at http://www.analog.com/Analog_Root/static/library/ dspManuals/genDspPublications.html |
[2003-3-24 12:02:51] |
[问: charmy] |
2407+8019as的以太网接入能到多少速度???
如果用2407单纯传数据,能到多少? |
| [答:Ksri] |
You are asking the wrong supplier. Please ask the correct supplier.
For all ADI products, we will be very glad to help you. |
[2003-3-24 12:03:20] |
[问:ecnan jing_EBY7E] |
When maintaining real-time operation,the system passes data between the target and host.The system can be driven by interrupts and polled,can bedriven both of them? |
[答: Jack_Xue] |
Yes. You can design your system by poll or interrput driven.
In a complex system, you had better to use interrput. It will be better than poll method. |
[2003-3-24 12:03:50] |
| [问:charmy] |
加入液晶显示。 用 lf2407a加128*64字符型LCM 是否可行? |
[答: Jack_Xue] |
Thanks for your joining ADI alignment.
You can use ADI parts to realize your requirement. |
[2003-3-24 12:05:09] |
[问:afeng _09] |
C语言能实时接收RAM中的数据吗?需要怎样做? |
[答: Jack_Xue] |
Of course.
C must be complied to be assemble language to run in DSP hardware. |
[2003-3-24 12:06:31] |
[问: fanyong-10 @sohu.com] |
未来DSP发展的主要市场是哪方面?技术方向主流是什么? |
| [答:Ksri] |
DSP is a very widely applied technolgy for a numebr of applications. Using DSP, your systems get flexible that many things done in hW before can now be done in SW.
We have SHARC, Blackfin and TigerSHARC DSPs that give high performance for a number next generation applications. These DSPs can be used for a variety of next generation and new target markets to offer high performance.
Please visit our website for details regarding the roadmaps of each of the DSPs |
[2003-3-24 12:08:20] |
| [问:robin] |
What"s the minim pulse wide of PWM out which some ADSP products featured? |
[答:Singer _Zhang] |
In some ADI DSP, this minim pulse wide of PWM out depends on the resolution. For example, in ADSP-21991, the minim pulse wide of PWM out is 12.5ns (at 80MHz). |
[2003-3-24 12:08:37] |
| [问:xbao] |
有能支持USB2.0的DSP芯片吗 |
[答: Li_Chuan] |
unfortunately, we can only support 1.1 now, we will support the V2.0 in the next chip of Blackfin family. |
[2003-3-24 12:14:50] |
| [问:78590] |
TS如何访问SRAM |
| [答:Ksri] |
The question is about how to access SRAM in TigerSHARC DSP ?
Ans : The TS core accesses the SRAM by executing instructions. SRAM can be internal memory or external memory. If internal memory, 32-bit, 64-bit and 128-bit accesses are possible every cycle.
For external memory accesses, it depends on how the external port is configured. You can configure 32-bit or 64-bit external ports in TS and still you can access the external SRAM just as above. Only difference is that it takes multiple cycles depending on the speed of external memory |
[2003-3-24 12:16:20] |
[问:navy jiang] |
贵公司的DSP在国内有哪些公司做具体的技术支持和解决方案? |
| [答:extra2] |
ADI和ADI的代理商都可以提供比较好的技术支持,并且还有北京的技术支持中心,可以帮助你完成设计。 解决方案是依靠国内和国外的第三方网络来完成。 |
[2003-3-24 12:17:05] |
[问:navy jiang] |
需要周期性的读取几十个外设的少量数据,而不影响内核处理,用DMA是否合适,还是需要用FPGA解决? |
[答: Jack_Xue] |
You can use a timer to period read your different device data.
Or you can use interrupt driver to read your data.
Because your data is not much, so it will cost DSP core less time to input your data.
Of course, you can use DMA, but you will cost much to connect many devices to one device DMA input. |
[2003-3-24 12:17:38] |
| [问:87913] |
Could you compare the power consumption between TigerSHARC with TI"s counterpart? |
| [答:Ksri] |
The TS DSP consumes around 2.7 Watts
For the TI component, you should be able to get the figures from them.
One comment here although : Power is directly proportional to frequency and volatage. Given TS is at lower frequency, the power consumption figure as you see is also lower. |
[2003-3-24 12:17:53] |
[问:zhan gnwpu] |
您好: 您能否谈谈DSP的发展方向,和应用前景,还有,您认为技术工程师要进入所谓的管理阶层需要作一些什么样的技术储备和项目经验。还有,您认为中国的技术工程师最缺乏什么东西,谢谢。 |
[答:Singer _Zhang] |
DSP将会集成越来越多的系统级功能,同时性价比越来越高。在多媒体、通讯、便携式、消费品等领域将会有更多的应用。 我建议你应该多关心除DSP之外的更多的有关ADI Siganl Chain方面的资料与信息.这可以帮助你有更好的技术储备和项目经验. |
[2003-3-24 12:19:01] |
[问: fanyong-10 @sohu.com] |
利用别的编程语言怎样实现对ADI DSP的编程和控制?有什么特殊要求吗? |
[答:Li_ Chuan] |
You can use C and C++ for the ADSP, we supply the complier, and other 3rd party also support the interface to MATLAB. the lauguage must meet the demand of the compiler, such as the ANSI C and the Embeded C++ standard. |
[2003-3-24 12:21:25] |