Larger Gowin Tang board for projects that need substantially more logic than Tang Nano and Primer boards.
GW5AST-LV138FPG676Aprice unknownvideonetworkingdsprisc-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 Mega 138K | Tang Nano 9K |
|---|---|---|
| Chip | GW5AST-LV138FPG676A | GW1NR-LV9QN88PC6/I5 |
| Family | GW5A | GW1NR / LittleBee |
| Device type | FPGA | FPGA |
| Price | unknown | 14.5 USD |
| Toolchains | Gowin EDA | Gowin EDA, Yosys + nextpnr-gowin + Apicula |
| Open toolchain | no | yes |
| Interfaces | not verified | HDMI, USB Type-C, Onboard JTAG, USB UART |
| Memory | not verified | PSRAM 64 Mbit, Onboard flash 32 Mbit |
| Documentation | 45 | 70 |
| Difficulty | professional | beginner |
| Openness score | 35 | 72 |
| Where to get help | Sipeed forum | r/GowinFPGA |
| Typical risks | This entry intentionally avoids detailed connector claims until official board-revision documents are reviewed. | 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 | professional prototyping | beginner learning |