Questions tagged [fpga]

A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturing.

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votes
1answer
40 views

VGA sync generator for 640x480@60Hz

I wrote my first module in Verilog. The purpose is to maintain two counters and emit signals corresponding to VGA's HSync and VSync, as well as HBlank and VBlank pulses to be used by a video ...
6
votes
1answer
41 views

Signal output on Raspberry Pi that acts as input for FPGA

Problem I'm writing a verilog program that does the trapezoidal integration method (where a review is also welcome, wink wink). But turns out you need input for these kind of things, so in the overly ...
5
votes
1answer
239 views

Verilog implementation of trapezoidal integration method

Any and all comments are welcome in this review. Problem I've been doing a lot with numerical integration methods recently and have mostly been programming in Python. But...speedups! And FPGAs are ...
4
votes
1answer
328 views

Simple SystemVerilog AXI controller

I have more long term project I'm using to learn FPGA/HDL and this is first sub-sub-sub component of it used for testing ;) I'm targeting Zynq device. I'd like to create a component which create an ...
6
votes
1answer
4k views

8-Bit ALU in Verilog

I'm an EE student who's taken a a couple digital logic/design courses, but they were focused on schematic representation, so I'm teaching myself Verilog to implement what I've learned. For a basic ...
5
votes
1answer
375 views

AXI4-Stream module

I'm implementing an AXI4-Stream module. The module uses three DSP blocks (DSP49E1, UG479 - Xilinx). In order to run the module at a frequency of 150 MHz, the design is a pipeline going successively ...
5
votes
2answers
201 views

FIR filters in C

I wrote 2 filters in C for the Altera DE2 Nios II FPGA, one floating-point and one fixed-point. I've verified that they perform correctly and now I wonder if you can give examples for improvement or ...
1
vote
1answer
563 views

Hardware interrupts for Nios 2

The program is behaving like expected, but I think something better can be done since I'm a novice C programmer. I suspect that the interrupt handler can use some other way of calling the hardware ...
3
votes
2answers
574 views

Polling for Nios 2

The program listens to the Altera FPGA DE2 board's keys that can start and stop and reset a counter: ...