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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Enter board slugs separated by commas, for example: sipeed/tang-nano-20k,icebreaker/icebreaker.
Compact open-source Lattice ECP5 board commonly used with LiteX, USB and open-source ECP5 flows.
LFE5U-25F/85Fopen toolchainprice unknownrisc-vlinuxusbeducation
| Field | Tang Mega 138K | OrangeCrab |
|---|---|---|
| Chip | GW5AST-LV138FPG676A | LFE5U-25F/85F |
| Family | GW5A | ECP5 |
| Device type | FPGA | FPGA |
| Price | unknown | unknown |
| Toolchains | Gowin EDA | Yosys + nextpnr + Project Trellis |
| Open toolchain | no | yes |
| Interfaces | not verified | USB, MicroSD |
| Memory | not verified | DDR3 requires revision check |
| Documentation | 45 | 65 |
| Difficulty | professional | intermediate |
| Openness score | 35 | 92 |
| Where to get help | Sipeed forum | OrangeCrab GitHub organization |
| Typical risks | This entry intentionally avoids detailed connector claims until official board-revision documents are reviewed. | Feature set differs across OrangeCrab revisions; verify exact revision. |
| Better for | professional prototyping | open-source flow |