Small Gowin GW1NR board for low-cost learning, HDMI experiments, softcore demos, and open-source Gowin flow exploration.
GW1NR-LV9QN88PC6/I5open toolchain14.5 USDeducationvideorisc-vretro
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Open-source educational Lattice iCE40UP5K board designed around the Yosys, nextpnr and IceStorm flow.
iCE40UP5K-SG48open toolchainprice unknowneducationcontroldspformal
| Field | Tang Nano 9K | iCEBreaker |
|---|---|---|
| Chip | GW1NR-LV9QN88PC6/I5 | iCE40UP5K-SG48 |
| Family | GW1NR / LittleBee | iCE40 UltraPlus |
| Device type | FPGA | FPGA |
| Price | 14.5 USD | unknown |
| Toolchains | Gowin EDA, Yosys + nextpnr-gowin + Apicula | Yosys + nextpnr + IceStorm, Lattice Diamond Programmer |
| Open toolchain | yes | yes |
| Interfaces | HDMI, USB Type-C, Onboard JTAG, USB UART | microUSB FT2232H, FT2232H programming, USB serial |
| Memory | PSRAM 64 Mbit, Onboard flash 32 Mbit | QSPI flash 128 Mbit |
| Documentation | 70 | 82 |
| Difficulty | beginner | beginner |
| Openness score | 72 | 96 |
| Where to get help | r/GowinFPGA | iCEBreaker community docs |
| Typical risks | Pinout and constraints must be taken from the exact board revision files, not inferred from this catalog entry. Open-source flow is feature-dependent | Check add-on pinout and exact hardware revision before connecting Pmods. |
| Better for | beginner learning | open-source flow |