fpga

I'm super excited about my program powering a little seven-segment display, but when I show it off to people not in the field, they always say "well what can you do with it?" I'm never able to give them a concise answer. Can anyone help me out? flolo First: They don't need to have volatile memory. Indeed the big players (Xilinx, Altera) usually have their configuration on-chip in SRAM, so you need additional EEPROM/Flash/WhatEver(TM) to store it outside. But there are others, e.g. Actel is one big player that come to mind, that has non-volatile configuration storage on their FPGAs (btw. this

At university I programmed a FPGA in a C-like language. However, I also know that one usually programs FPGAs in Verilog or VHDL. Is this a designer choice? If so, what are the performance drawbacks? I would ideally like to program the FPGA in a C-like language, rather than VHDL. I was thinking of getting an Xilinx Virtex-5 if it makes any difference? David Pointer The short answer is "yes, certainly". Here's an excellent survey of C compilers for FPGAs and FPGA-based systems. C-to-hardware compiler (HLL synthesis) Performance drawbacks and considerations are found in the system architecture

/*------------ 以下是 FPGA 与微控制器通信 SPI 模块的编程思路 - 分析 ---------------------------------------------- ----------------- 本文严禁抄袭和用于各种商业用途，违者必究 ------------------------------------------------------------------ --------------- 作者：熊楚华 ------------------------------------------------------------------------------------------------------------------ ---------------------- 修改日期： 2017/12/14----------------------------------------------------------------------------------------------- */ 模块结构框图 Spi_scl 是 SPI 通信时钟，由主机自行产生，跟一般意义的时钟不一样，上升沿 32 发数据，下降沿 32 接收数据 主要由 SPI 信号缓存模块， SPI 时钟边沿检测，命令接收 + 数据接收，发送几部分构成： Spi

What is an FPGA, and where can I buy one? How much do they cost? What sort of system do you need to experiment with them? How to program them? Can you "load" if that's the right term an FPGA using an ordinary Mac? Are they extremely expensive or can I buy one today? I have become interested in FPGAs after reading this question . Although it is far from the cheapest, buying a Xilinx XUPv5 is a good idea if you want to learn a lot - not only is the 110T chip large enough to build very ambitious projects (a fully functional Nintendo console replica, for example), but it is also the board many top

xilinx FPGA普通IO作PLL时钟输入 在xilinx ZC7020的片子上做的实验; [结论] 普通IO不能直接作PLL的时钟输入,专用时钟管脚可以; 普通IO可以通过BUFG再连到PLL的时钟输入上,但要修改PLL的设置 input clk的选项中要选择"No Buffer"; 具体内部布局分配可以通过 Xilinx的FPGA Editor来查看, ZYNQ的时钟管理也和之前的片子略有不同,之后在另一篇介绍,相关文档 <ug472_7Series_Clocking.pdf> [Demo1] 1 // demo1 two bufg connect 2 3 module iobuf( 4 5 input clk, 6 7 input rst, 8 9 output led 10 11 ); 12 13 wire clkin_w; 14 15 BUFG BUFG_inst ( 16 17 .O(clkin_w), // Clock buffer output 18 19 .I(clk) // Clock buffer input 20 21 ); 22 23 pll0 u_pll0( 24 25 .CLK_IN1(clkin_w), // IN 26 27 .CLK_OUT1(clkout), // OUT 28 29 .RESET(rst)); // IN 30 31

TCL命令：将bit复制到工程的根目录 　　 write_cfgmem -format MCS -size 256 -interface spix4 loadbit "up 0 FPGA_TOP.bit" FPGA_TOP.mcs 完整格式（带路径，不需要复制bit到根目录） 　　 write_cfgmem format MCS -size 256 -interface spix4 loadbit "up 0x0 F:/FPGA_project/FPGA_TOP/FPGA.runs/impl_2/fpga>bit" -file F:/FPGA_project/FPGA.mcs 来源： https://www.cnblogs.com/liyan1994/p/11736518.html

Quartus现在分为3个版本， 分别是Quartus Prime专业版，Quartus Prime标准版，Quartus Prime精简版。 Quartus Prime 专业版 — Quartus Prime 专业版适合支持实现从 Arria 10 器件系列开始的 Altera 下一代 FPGA 和 SoC 先进的特性。 Quartus Prime 标准版 — Quartus Prime 标准版为最新的器件系列提供最全面的支持，需要订购许可。 Quartus Prime 精简版 — Quartus Prime 精简版是大批量器件系列理想的设计起点，可以免费下载，不需要许可。 下载地址 https://www.altera.com.cn/products/design-software/fpga-design/quartus-prime/download.html http://dl.altera.com/?edition=standard 安装Quartus Prime 标准版 安装过程比较简单，一步步Next就可以了，就不截图了。 下载破解器 (百度一下就可以了） 运行注册机 破解gcl_afcq.dll 破解sys_cpt.dll 启动quartus prime 编辑license.data文件 把里面的xxxxxxxx换成网卡的MAC地址，注意去掉中间的短横线

I am a beginner in VHDL coding. I am trying to implement frequency multiplier using VHDL. I have implemented frequency divider, but frequency multiplier is not that easy. Please give an idea for implementing that. For implementation in a FPGA, you must use a dedicated FPGA resource like Phase-Locked Loop (PLL) (see Altera and Xilinx ) or Digital Clock Managers (DCM) (see Xilinx ) to multiply a frequency. These resources can create an output frequency based on an input frequency like: f_out = (N / M) * f_in The PLL and DCM resources are device specific, and often very advanced resources, that