Larger Gowin Tang board for projects that need substantially more logic than Tang Nano and Primer boards.
GW5AST-LV138FPG676Aprice unknownvideonetworkingdsprisc-v
Boards
Compare boards
Enter board slugs separated by commas, for example: sipeed/tang-nano-20k,icebreaker/icebreaker.
Open-source educational Lattice iCE40UP5K board designed around the Yosys, nextpnr and IceStorm flow.
iCE40UP5K-SG48open toolchainprice unknowneducationcontroldspformal
| Field | Tang Mega 138K | iCEBreaker |
|---|---|---|
| Chip | GW5AST-LV138FPG676A | iCE40UP5K-SG48 |
| Family | GW5A | iCE40 UltraPlus |
| Device type | FPGA | FPGA |
| Price | unknown | unknown |
| Toolchains | Gowin EDA | Yosys + nextpnr + IceStorm, Lattice Diamond Programmer |
| Open toolchain | no | yes |
| Interfaces | not verified | microUSB FT2232H, FT2232H programming, USB serial |
| Memory | not verified | QSPI flash 128 Mbit |
| Documentation | 45 | 82 |
| Difficulty | professional | beginner |
| Openness score | 35 | 96 |
| Where to get help | Sipeed forum | iCEBreaker community docs |
| Typical risks | This entry intentionally avoids detailed connector claims until official board-revision documents are reviewed. | Check add-on pinout and exact hardware revision before connecting Pmods. |
| Better for | professional prototyping | open-source flow |