LED to believe

This project aims to provide LED blinking examples for all the FPGA dev boards in the world.

The goal is to provide a quick way to test your new FPGA board and get acquainted with using FuseSoC in your design flow.

Each FPGA board is implemented as a separate FuseSoC target and users are highly encouraged to add support for their any board at their disposal so that we can have a large collection.

How to use

This project is available in the FuseSoC base library, so if you have FuseSoC installed, you likely already have this project as well.

To check if it's available run fusesoc core list and check for a core called fusesoc:utils:blinky.

If it's not there, try to run fusesoc library update to refresh the core libraries and look again.

If it's still not there, or if you want to modify the project, e.g. to add support for an additional board, you can add LED to believe as a new core library with fusesoc library add blinky https://github.com/fusesoc/blinky. LED to believe will now be added as a new library and downloaded to fusesoc_libraries/blinky

To build for your particular board, run fusesoc run --target=<board> fusesoc:utils:blinky where <board> is one of the boards listed in the Board support section below.

Alternatively, run fusesoc core show fusesoc:utils:blinky to find all available targets.

There is also a simulation target available to test the core without any hardware. To use this, run fusesoc run --target=sim fusesoc:utils:blinky.

The simulation target has a number of target-specific configuration parameters that can be set. All target-specific parameters goes on the end of the command line (after the core name).

To list all simulation parameters, run fusesoc run --target=sim fusesoc:utils:blinky --help.

Example: To run four pulses with a simulated clock frequency of 4MHz and creating a VCD file, run fusesoc run --target=sim fusesoc:utils:blinky --pulses=4 --clk_freq_hz=4000000 --vcd.

The default simulator to use is Icarus Verilog, but other simulators can be used by setting the --tool parameter after the run command.

Currently supported simulators for this target are icarus, modelsim and xsim. To use e.g. modelsim run fusesoc run --target=sim --tool=modelsim fusesoc:utils:blinky.

What to do next

That was fun, wasn't it? And did you know that once you have gotten a LED to blink in this way, you are actually 90% of the way already to run a small SoC with a RISC-V CPU on the same board. Maybe your board is already supported? Or maybe you're up to the challenge of adding support for it. All it takes is to create a 16MHz clock and allocate an output pin to connect a UART. For more info, move on to learn about and run SERV, the world's smallest RISC-V CPU

Board support

The following boards are currently supported:

ULX3S comes in different sizes. The targets ulx3s_45 and ulx3s_85 are defined for different FPGA sizes

Upduino 2

http://www.gnarlygrey.com/

xc6sl9_hseda_eda6.1

http://www.hseda.com/product/xilinx/XC6SLX9COREV1.0/XC6SLX9CORE.htm

zcu102

https://www.xilinx.com/products/boards-and-kits/zcu102.html

zcu106

https://www.xilinx.com/products/boards-and-kits/zcu106.html

zrtech_v2

http://land-boards.com/blwiki/index.php?title=ZrTech_V2_EP4CE6_Cyclone_IV_FPGA_EP4CE6E22C8N_Development_Board_USB_V2

Zybo Z7-10 & Zybo Z7-20

https://store.digilentinc.com/zybo-z7-zynq-7000-arm-fpga-soc-development-board/

Zybo Z7 comes with two variants of the Zynq SoC. The targets zybo_z7-10 and zybo_z7-20 are defined for different SoC configurations.

Files

README.md

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History

README.md

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LED to believe

How to use

What to do next

Board support

AC701

AnalogMax

afp27

afp51

Alhambra II

arty_a7_35t

basys3

c10lp_refkit

colorlight_5a75b

crosslink_nx_evn

cyc1000

Cisco HWIC-3G-CDMA

Waveshare CoreEP4CE10

de0_nano

de1_soc

de10_nano

DECA

ecp5_evn

EP2C5T144 Development Board

Fomu

FPC-III

Nandland Go Board

ice40hx1k_evb

ice40-hx8k_breakout

iCEBreaker FPGA

iceFUN

iceWerx

lx9_microboard

kcu1500

machXO2_breakout

machXO3_breakout

max1000

Microsemi Polarfire Evaluation Kit

nexys_4

nexys_a7

nexys_video

opos6ul_sp

pipistrello

S7 Mini

SoCKit Development Kit

spartan_edge_accelerator_board

tang_nano