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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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
| Field | Tang Nano 20K | Tang Nano 9K |
|---|---|---|
| Chip | GW2AR-LV18QN88C8/I7 | GW1NR-LV9QN88PC6/I5 |
| Family | GW2A/GW2AR | GW1NR / LittleBee |
| Device type | FPGA | FPGA |
| Price | 28.17 USD | 14.5 USD |
| Toolchains | Gowin EDA, Yosys + nextpnr-gowin + Apicula | Gowin EDA, Yosys + nextpnr-gowin + Apicula |
| Open toolchain | yes | yes |
| Interfaces | HDMI, MAX98357A I2S amplifier path, TF card slot, USB Type-C, Onboard BL616 JTAG, USB UART | HDMI, USB Type-C, Onboard JTAG, USB UART |
| Memory | 32-bit SDR SDRAM 64 Mbit, Onboard flash 64 Mbit | PSRAM 64 Mbit, Onboard flash 32 Mbit |
| Documentation | 78 | 70 |
| Difficulty | beginner | beginner |
| Openness score | 76 | 72 |
| Where to get help | Sipeed forum, r/GowinFPGA | r/GowinFPGA |
| Typical risks | Verify exact board revision before using pin labels, constraints, or power assumptions. Onboard debugger recognition Flash persistence mode | Pinout and constraints must be taken from the exact board revision files, not inferred from this catalog entry. Open-source flow is feature-dependent |
| Better for | beginner learning | beginner learning |