actually i have no comment here, i am trying to do program with FPGA, but i have no such FPGA, i just hope to get some information about how to write code to FPGA and execute it. if anyone provide some example, thanks a lot.

sincerely

They have a lot of flash videos on their site, which will give you a good idea of the program.

Or I’m sure you can find a “demo” version of the software online.

I noticed Altium has a C-HDL feature, which allows you to write software for your main processor and then move certain functions to hardware. But I need to get an fpga first.

However – I find that this FPGA page really talks more about implementing a CPU within an FPGA and writing C or ASM for that CPU. While this may be one thing you can do, it by no means actually exploits the inherent power within the FPGA. You are still writing sequential code to be executed within the FPGA instead of just buying the cheaper hardened silicon.

VHDL has inherent parallelism based on concurrent processes, but the biggest turn off is the strict typing of the language (If VHDL is too strict, you can try Verilog, but when it comes to building hardware, you may prefer to be as strict as possible). Once you’ve passed this obstacle and have a good understanding that what you implement goes into registers and look-up tables, it’s all very easy going.

I recommend searching for the “VHDL Cookbook” for a great primer on VHDL.

Lastly, it should be realized that there are two flavors of VHDL that you can target – VHDL for Synthesis (programming for FPGA’s and other programmable logic devices), and VHDL for Simulation (testing cases, assert statements, floating-point calculations, etc). Some things which are nice for simulation (time delays, large for loops that can’t be parallelized, etc) are NOT synthesizable constructs.

@giskard: VHDL has the same programming structure as Ada. If anyone has ever programmed in Ada, then writing VHDL is a natural extension.

if you are scrared, copy paste in a word doc and you will have it for life!

Besides some other custom FPGA boards, I have the BurchED board and it was very useful to
me because of the easy to use headers. I could plug my creations to any position and made a script to adjust pin-mapping and create the VHDL entity for me.

At work, I tried the Xilinx Starter Kit. With the right connector and flatcable it was connected to an Atmega128+WizNET board. (addr/data & SPI bus)