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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Open-source educational Lattice iCE40UP5K board designed around the Yosys, nextpnr and IceStorm flow.
iCE40UP5K-SG48open toolchainprice unknowneducationcontroldspformal
Digilent Artix-7 board with Vivado WebPACK support, Pmods, Arduino/chipKIT style expansion, DDR3 and Ethernet.
XC7A35TICSG324-1Lprice unknowneducationrisc-vcontroldsp
| Field | Tang Nano 20K | iCEBreaker | Arty A7 |
|---|---|---|---|
| Chip | GW2AR-LV18QN88C8/I7 | iCE40UP5K-SG48 | XC7A35TICSG324-1L |
| Family | GW2A/GW2AR | iCE40 UltraPlus | Artix-7 |
| Device type | FPGA | FPGA | FPGA |
| Price | 28.17 USD | unknown | unknown |
| Toolchains | Gowin EDA, Yosys + nextpnr-gowin + Apicula | Yosys + nextpnr + IceStorm, Lattice Diamond Programmer | Vivado WebPACK / ML Standard |
| Open toolchain | yes | yes | no |
| Interfaces | HDMI, MAX98357A I2S amplifier path, TF card slot, USB Type-C, Onboard BL616 JTAG, USB UART | microUSB FT2232H, FT2232H programming, USB serial | Ethernet, USB UART, USB-JTAG |
| Memory | 32-bit SDR SDRAM 64 Mbit, Onboard flash 64 Mbit | QSPI flash 128 Mbit | DDR3 variant-specific; verify in Digilent memory tab |
| Documentation | 78 | 82 | 86 |
| Difficulty | beginner | beginner | beginner |
| Openness score | 76 | 96 | 20 |
| Where to get help | Sipeed forum, r/GowinFPGA | iCEBreaker community docs | Digilent Forum |
| Typical risks | Verify exact board revision before using pin labels, constraints, or power assumptions. Onboard debugger recognition Flash persistence mode | Check add-on pinout and exact hardware revision before connecting Pmods. | Variant-specific records should be split before publishing exact resources. 35T and 100T variants differ |
| Better for | beginner learning | open-source flow | beginner learning |