Gowin GW2A-18 dock-style board intended for secondary development with more connectors than Tang Nano boards.
GW2A-LV18PG256C8/I7open toolchainprice unknowneducationvideonetworkingrisc-v
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Enter board slugs separated by commas, for example: sipeed/tang-nano-20k,icebreaker/icebreaker.
Larger Gowin Tang board for projects that need substantially more logic than Tang Nano and Primer boards.
GW5AST-LV138FPG676Aprice unknownvideonetworkingdsprisc-v
| Field | Tang Primer 20K Dock | Tang Mega 138K |
|---|---|---|
| Chip | GW2A-LV18PG256C8/I7 | GW5AST-LV138FPG676A |
| Family | GW2A | GW5A |
| Device type | FPGA | FPGA |
| Price | unknown | unknown |
| Toolchains | Gowin EDA, Yosys + nextpnr-gowin + Apicula | Gowin EDA |
| Open toolchain | yes | no |
| Interfaces | Ethernet, HDMI, USB 2.0, SD card, JTAG/UART connector | not verified |
| Memory | DDR3 1 Gbit, NOR flash 64 Mbit | not verified |
| Documentation | 68 | 45 |
| Difficulty | intermediate | professional |
| Openness score | 70 | 35 |
| Where to get help | Sipeed forum | Sipeed forum |
| Typical risks | Dock-specific features must be checked against the dock revision documentation. | This entry intentionally avoids detailed connector claims until official board-revision documents are reviewed. |
| Better for | open-source flow | professional prototyping |