Prebuilt FPGA Bitstreams
Ready-to-program bitstreams for supported boards. All bitstreams are built using Vivado 2025.02. You can find the specific branch and commit hashes the bitstreams were built from in the release page.
Note
We currently support Xilinx VCU-118 only. Bitstream and Linux images for Arty A7 100T will be published shortly.
Available Releases
| Bitstream | Linux Kernel | Features | Notes | Release Version |
|---|---|---|---|---|
| microwatt-litex-vcu118-dram-2026-02-25.bit | Linux 6.12.0 | Microwatt on LiteX SoC, BIOS, DRAM support, embedded device tree, Buildroot initramfs | Recommended configuration for VCU-118. Built with Vivado 2025.2. Interfaces subject to change. | vcu118-20260225 |
| microwatt-native-vcu118-dram-bram-qspi-2026-02-25.bit | - | Microwatt native SoC, DRAM, BRAM, QSPI support | Native SoC configuration with BRAM and QSPI flash support. Built with Vivado 2025.2. Loads bare metal binary baked into BRAM. | vcu118-20260225 |
| microwatt-native-vcu118-dram-no-bram-qspi-2026-02-25.bit | Linux 6.12.0 | Microwatt native SoC, DRAM, QSPI support (no BRAM), embedded device tree, Buildroot initramfs | Native SoC without BRAM, uses QSPI flash. Loads Linux via QSPI flash. Built with Vivado 2025.2. | vcu118-20260225 |
| microwatt-native-vcu118-no-dram-2026-02-25.bit | - | Microwatt native SoC, standalone (no DRAM) | Standalone configuration without external DRAM. Built with Vivado 2025.2. Linux boot NOT supported. | vcu118-20260225 |
All files available at: PowerCommons Releases Repository
Coming Soon
A2O Core (VCU-118)
PowerPC A2O out-of-order core with 4-way SMT.
ETA: Q2 2026
License
Bitstreams are provided under the same license as source (Apache 2.0 or GPL-3.0). See repository for details.