[问]很想了解基于MPEG4的可视电话机二次开发平台,或者运动图象压缩的开发平台资料。
谢谢!
[答] Please visit the website below,
http://www.dspvillage.com/idkYou could link to related information from the webpage.
[问] 请问EVM板提供原理图和PCB图吗
[答]Rudy_huany] Yes, provided it is manufactured by TI. If you are talking about EVM from our third party, you have to request it from the third party. @[02-4-26 上午 11:24:32]
[问] 请问如何通过仿真器把.HEX程序直接烧到FLASH中去?所用DSP为5402.是否需要自己另外编写一个烧写程序,如何实现?谢谢!!
[答] 直接写.OUT。是DSP中写一段程序,把主程序写到FLASH中。
[问:kapok] 设计c6701的计算机pci板卡时,怎样通过计算机下载程序到c6701中?
如果板卡有flash,仿真器可以直接写flash吗?flash地烧写程序由谁提供,是自己编写吗(c6701程序)?
[答:Mark_Qian] 可以,要自己写
[问] 1。DSP芯片内是否有单个的随机函数指令?
2。DSP内的计算速度是快的,但是它的I/O口的交换速度有多快呢?
3。DSP如何配合EPLD或FPGA工作呢?
[答] 1. No.
2. Depeneded on which I/O you are referring. For HPI, the transfer rate (in bytes) could be about 1/4 of CPU clock. For McBSP, the bit rate (kbps) could be about 1/2 CPU clcok.
3. You could cascade the emuation interface with the one on EPLD/FPGA. Please see the following application notes for details.
(SPRA439a)
http://www.ti.com/sc/docs/psheets/a...ps/spra439a.htm [问:] 请问在DSP硬件电路板Layout时,EMI方面的问题应主要注意哪几点?
[答:] 信号的完整
[问:] 1、c5416的pcb板设计是否需要考虑高速数字电路板设计?
2、c5416的电源,EEPROM,扩展SRAM,双口RAM设计;能否介绍较详细的管脚图?
3、刚进行c5416的硬件设计和软件设计时,是否有较好的中文或英文参考书。
[答:] 1. Yes. Since the operating frequency could be higher than 100MHz.
2. You could refer to our C5416 DSK design.
3. For S/W development, you could try the examples from our CCS. For H/W design, you could refer to our EVM/DSK design.
[问] 我有三个关于C2000的问题。
1、C240或C2407的RS复位引脚既可输入,也可输出,直接用CMOS门电路(如74ACT04)驱动是否合适,还是应该用OC门(集电极开路)驱动。
2、大程序有时运行异常,但加一两条空指令就正常,是和原因。
3、对C240,如在INT4同时有CAP1、CAP2、CAP3,则如何避免不会丢失中断。
[答] 1、OC门(集电极开路)驱动
2、是流水线的问题。
[问:] do u have low noise,high resolution ADC(16bit to 24bit) integrated DSP?
[答:] No, currently.Usually, you need an external ADC instead.
[问] 我有关于C240的一个问题,为何有时程序从外部运行正常,烧进FLASH就不正常。是何原因。谢谢
[答] 可能性较多,建议检查空间设置或初始化段是否写入FLASH
[问] 我想了解TMS320C240及其相关DSP的设计方法,用于全桥电源的PWM控制,谢谢。
[答] You could download our Developer"s Kits from the following web page,
http://www.dspvillage.com/c2000devkit [问] 我在使用5402DSK时,一上电,不接MIC,只接耳机,不运行任何程序,耳机中有比较明显的一定频率的噪声出现。有时上电后没有出现,但接MIC,运行范例中的CODEC程序时,又会出现这种噪声。上述情况通常都在DSK工作一段时间后自动消失。我在DSP论坛上发现别人用DSK时也碰到过这种情况,我自己参照5402DSK做了一块板,所用器件基本一样,也是这现象,请问怎么回事,如何解决。
[答] 开始时没有有效的程序代码,所以上电后是随机状态,出现这种情况是正常的。
[问] 请问:能否提供一份dsp系统设计的硬/软件详细框图和调试步骤。
[答] You could refer to the following two documents, Emulation Fundamentals for TI "s DSP Solutions
http://www.ti.com/sc/docs/psheets/a...ps/spra439a.htmCCS Getting started guide (SPRU509)
http://www-s.ti.com/sc/techlit/spru509 [问] 请问TMS320LF2407与TMS320C6201的HPI接口怎样连接,有特别的时序要求吗?
[答] 没有特别的时序要求。HPI接口作为2407的外围设备,直接接口
[问] 请介绍一款专用于FFT,数字滤波,卷积,相关等算法的DSP,最好集成12BIT以上的ADC功能。
[答] I recommend TMS320LF240x, if your application is about motor/energy control. Please also see our DSP selection guide for more information on it,
http://www.dspvillage.ti.com/dspguide [问] 电路中用到DSP,有时当复位信号为低时,电压也属于正常范围,但DSP加载程序不成功。电流也偏大,有时时钟也有输出。不知为什么?
[答] 复位时无法加载程序
[问] c5510芯片如何接入E1信号?在接入时有什么需要注意的地方?
[答] 通过McBSP同步串口接入 {注意信号电平必须满足要求}
[问] ccs2.0中有gel文件,可以初始化外设。那有了gel文件后,我在我的程序中还需要不需要编写初始化外设的语句。我的程序将脱离调试环境运行。
[答] 需要
[问] 我设计的TMS320C5402板子在调试软件时会经常出现memory错误报告,排除是映射的问题,是不是板子不稳定的因素?还是DSP工作不正常的问题?如何判别?
[答] 你可以利用MEmoryfill功能,填入一些数值,然后刷新一下,看是不是在变,如果是在变化,则MEmory 是有问题。
[问] VC33的哪些接口可接AD?最好是无缝连接。
[答] You could find recommended data converters for VC33 from the following web site,
http://www.ti.com/sc/docs/msp/c3x.htm[问] DSP的程序编写用汇编好还是C好?
[答] You can use C coding and compiler for assemble code to do the function verifiction, for better code optimize, you can modify with assemble code.
[问] 请问:TI公司推出了一款TS320多媒体处理器(DSP),可以应用在安防系统,可以开发成硬盘录象机(DVR).再什么地方可以找到这个应用方案.
[答] If you are talking about DSC24, please visit the following web site,