munch — Multi-FPGA Usable Newbie Chips
Minimal multi-board LED blinker that builds with Yosys (and open tools) and ships ready-to-flash images in GitHub Releases.
Boards: Tang Nano 9K · Tang Nano 20K · Arty A7 · Arty S7 · Kintex-7 (QMTech XC7K325T) · Nexys 2 · SuperStation One / MiSTer (Cyclone V)
Flash it (easiest)
Go to Releases and download the file for your board. Follow the one-liner in FLASH.md . Example (Tang Nano 9K):
openFPGALoader -b tangnano9k blinky-tangnano-9k.fs Example (Kintex-7 QMTech):
openFPGALoader -b qmtechKintex7 blinky-kintex7-qmtech.bit What you get in each release Board Artifact Status Tang Nano 9K blinky-tangnano-9k.fs Full open flow — ready to flash Tang Nano 20K blinky-tangnano-20k.fs Full open flow — ready to flash Arty A7 blinky-arty-a7.bit (+ json/edif) Full open flow in CI (openXC7) — ready to flash Arty A7-100T ( arty-a7-100t ): openXC7 bitstream | Arty S7 | blinky-arty-s7.bit (+ json/edif) | Full open flow in CI (openXC7) — ready to flash | Arty S7-25 ( arty-s7-25 ): openXC7 bitstream | Kintex-7 (QMTech) | blinky-kintex7-qmtech.bit | Full open flow in CI (openXC7) — ready to flash | | Nexys 2 | blinky-nexys2.json + .edif | Yosys experimental synth (finish with ISE) | | SuperStation / MiSTer | blinky-superstation.vqm | Yosys open synth (full .rbf needs local Quartus) | Design One shared Verilog ( src/blinky.v ) — free-running counter, MSB drives an LED.
Board pin constraints live under constraints/ .
make # help make pre-check # check tools make bit # final artifact for default board (tangnano-9k) make BOARD=arty-a7 bit # Arty A7 .bit (needs openXC7 locally; CI has it) - ** Arty A7-100T ** ( ` arty-a7-100t ` ): openXC7 bitstream make BOARD=kintex7-qmtech bit # Kintex-7 .bit (needs openXC7) make build # intermediates only (json/edif/vqm/fasm) make flash # flash default board (openFPGALoader) make clean Or build from source: https://github.com/openXC7/toolchain-installer
Acknowledgments