应该关注什么类型的fpga？

我会对此采取行动，但是你可以想象，任何程度的证据都是一个不可能回答的问题。
FPGA芯片，正如我们在赛灵思论坛上所做的那样，如果您的性能优异，或者Virtex 5或6是您的顶级性能，它将成为Spartan 3A或Spartan 6。
6系列是新的，但如果到2009年底你不需要超过样品数量，那么我认为你应该没问题。
Spartan 6和virtex芯片都有高速串行链路版本，有些带有以太网硬件。
IP智能，数字滤波，GPIO，CAN总线，UARTS等在Xilinx设计工具中都得到了相当的关注，包括软处理器pico和Micro blaze，或者在大芯片中可以选择硬Power PC。
你甚至可以在这些东西上运行Linux。
不是xilinx的事情，但你提到了调制解调器和USB，我过去曾使用过各种模块，一边是“串行”，另一边是电话/ USB /手机。
Menas您不必在每个国家/地区获得“类型认可”的硬件。
最后一点，我将与您当地的Xilinx FAE“上床”，并仔细考虑选项。



以下为原文

I'll take a crack at this, though as yo ucan imagine it's an impossible question to answer with any degree of certanty.
 
FPGA chips, well as we're on the Xilinx forum, it's going to be the Spartan 3A or the Spartan 6 if your after resonable performance, or the Virtex 5 or 6 is your after top notch performance. The 6 range is new, but if you don't need more than sample quantities till end of 2009, then I think you should be OK. Spartan 6, andboththe virtex chips have versions with high speed serial link, and some with ethernet hardware.
 
IP wise, Digital filtering, GPIO, CAN bus , UARTS etc are all taken care off fairly well in the Xilinx design tools, including the soft processors pico and Micro blaze, or in the big chips the option of  hard Power PC's. You can even run Linux on the things.
 
Not a xilinx thing, but you mention modems and USB, I have used in the past various modules that talk 'serial' on one side and telephone / USB / Mobile phone on the other side. Menas you don't have to get your hardware "type approved" in each country. 
 
 
One final note, I'd "get into bed" with your local Xilinx FAE, and mull over the options.

嗨，
根据您提到的功能，我会选择MCU + FPGA，而不仅仅是FPGA。
看看基于ARM / PPC / MIPS的MCU的（许多）供应商，选择具有列表中大部分功能的MCU。
有些设备有以太网+ USB + CAN + I2C + SPI + UART。
如果您想让生活更轻松，请选择具有一些原理图和评估板的MCU，以便为您的PCB设计奠定基础，并对软件支持有一个很好的了解。
访问某些开源操作系统的端口，如Linux或FreeRTOS或...可以为您节省很多钱，与预先打包的商业操作系统相比，没有这样的端口可能会花费您很多钱。
根据我的经验，软件部分是主要的成本驱动因素之一。
您可以选择将FPGA连接到MCU的外部存储器端口以获得最高吞吐量，也可以通过SPI进行接口。
将一些接头连接到FPGA，因为它将作为您的扩展设备，例如支持许多UART，SPI，I2C ......您的FPGA也适用于快速DSP，视频处理......
用于FPGA配置的SPI闪存既简单又便宜，如果您还将闪存连接到MCU，则可以通过非常简单的方式对FPGA映像进行现场升级。
OpenCores和Xilinx提供大量优质IP，OpenCores IP是免费的。
像GPRS调制解调器这样的东西，蓝牙和WLAN最好通过经过验证的，符合FCC标准的模块来处理，除非你真的需要在每块电路板上并且你打算出售它们。
祝你好运！



以下为原文

Hi,
 
Based on the features you mention, I'd go for an MCU+FPGA rather than an FPGA alone. Have a look at the (many) vendors of ARM/PPC/MIPS based MCU and pick an MCU that has most of the features on your list. Some devices have Ethernet+USB+CAN+I2C+SPI+UART.
If you want to make life easier, pick an MCU that has some schematics and eval boards to base your PCB design on and have a good look at the software support. Having access to a port of some open source OS like Linux or FreeRTOS or ... can save you a lot of money, not having such a port could cost you a lot of money compared to a pre packaged commercial OS. In my experience, the software part is one of the main cost drivers.
 
You can opt to connect the FPGA to an external memory port of the MCU for highest throughput or you can interface over SPI. Hook some headers to the FPGA as it will act as your expansion device to e.g support many UART, SPI, I2C, ... Your FPGA will also be suited to do some fast DSP, video processing, ...
SPI flash for FPGA configuration is easy and cheap and if you also hook the flash to the MCU, you have a very simple path for field upgrades of the FPGA images.
 
OpenCores and Xilinx offer loads of good quality IP with the OpenCores IP being free.
 
Stuff like GPRS modems, Bluetooth and WLAN is best handled through pre validated, FCC compliant modules unless you really need them on every board and you plan to sell loads of them.
 
Good luck!

嗨，
您没有说明您所处的市场细分，医疗，汽车，消费者等，或您正在运营的价格/数量点以及开发预算是多少。
如果到目前为止您一直在使用PIC，那么您需要使用微控制器，因为这显然是您所知道的，并且似乎已满足您的需求，除了对某些新接口和功能的要求之外。
改用嵌入式FPGA可能是一个过程。
我猜想汽车系列的处理器将是我的首选。
MPC555等广泛使用且成本低廉。
如果需要，你可以添加一个FPGA，但是你似乎已经管理到目前为止没有一个。
基本上，如果不想过于细致，您需要聘请一位体面的顾问/咨询师或经验丰富的工程师来帮助您为您的应用选择最合适的技术。
这不是一个简单的问题，所以没有一个简单的答案。
最好的祝愿
彼得
消息由flitch @ mbda于07-31-2009 07:27 AM编辑



以下为原文

Hi,
 
You do not say what market segment you are in, medical, automotive, consumer etc, or what price / volume point you are operating at and what is the budget for the development.
 
If you have been managing with PICs to date then you need to stay with microcontrollers as this is obviously what you know and appears to be have been sufficient for your needs to date, with the exception of the requirements for some new interfaces and functionality. Changing to embedded FPGAs is probably a step too far.
 
I would guess that an automotive family of processors would be my first choice. MPC555 etc are widely used and low cost. You could add an FPGA if required but you seem to have managed so far without one.
 
Basically, without wishing to put too finer point on it, you need to employ a decent consultant/consultancy or experienced engineer to assist you in selecting the most appropriate technology for your application.
 
This is not a simple question, so there is not a simple answer.
 
Best wishes
Peter
 
 
Message Edited by flitch@mbda on  07-31-2009 07:27 AM