Compact Gowin GW2AR board with HDMI, audio amplifier, TF card slot, SDRAM, and onboard debugger.
GW2AR-LV18QN88C8/I7open toolchain28.17 USDeducationvideoaudiorisc-v
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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 20K | iCEBreaker |
|---|---|---|
| Chip | GW2AR-LV18QN88C8/I7 | iCE40UP5K-SG48 |
| Family | GW2A/GW2AR | iCE40 UltraPlus |
| Device type | FPGA | FPGA |
| Price | 28.17 USD | unknown |
| Toolchains | Gowin EDA, Yosys + nextpnr-gowin + Apicula | Yosys + nextpnr + IceStorm, Lattice Diamond Programmer |
| Open toolchain | yes | yes |
| Interfaces | HDMI, MAX98357A I2S amplifier path, TF card slot, USB Type-C, Onboard BL616 JTAG, USB UART | microUSB FT2232H, FT2232H programming, USB serial |
| Memory | 32-bit SDR SDRAM 64 Mbit, Onboard flash 64 Mbit | QSPI flash 128 Mbit |
| Documentation | 78 | 82 |
| Difficulty | beginner | beginner |
| Openness score | 76 | 96 |
| Where to get help | Sipeed forum, r/GowinFPGA | iCEBreaker community docs |
| Typical risks | Verify exact board revision before using pin labels, constraints, or power assumptions. Onboard debugger recognition Flash persistence mode | Check add-on pinout and exact hardware revision before connecting Pmods. |
| Better for | beginner learning | open-source flow |