Digilent Artix-7 board with Vivado WebPACK support, Pmods, Arduino/chipKIT style expansion, DDR3 and Ethernet.
XC7A35TICSG324-1Lprice unknowneducationrisc-vcontroldsp
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Compact Gowin GW2AR board with HDMI, audio amplifier, TF card slot, SDRAM, and onboard debugger.
GW2AR-LV18QN88C8/I7open toolchain28.17 USDeducationvideoaudiorisc-v
| Field | Arty A7 | Tang Nano 20K |
|---|---|---|
| Chip | XC7A35TICSG324-1L | GW2AR-LV18QN88C8/I7 |
| Family | Artix-7 | GW2A/GW2AR |
| Device type | FPGA | FPGA |
| Price | unknown | 28.17 USD |
| Toolchains | Vivado WebPACK / ML Standard | Gowin EDA, Yosys + nextpnr-gowin + Apicula |
| Open toolchain | no | yes |
| Interfaces | Ethernet, USB UART, USB-JTAG | HDMI, MAX98357A I2S amplifier path, TF card slot, USB Type-C, Onboard BL616 JTAG, USB UART |
| Memory | DDR3 variant-specific; verify in Digilent memory tab | 32-bit SDR SDRAM 64 Mbit, Onboard flash 64 Mbit |
| Documentation | 86 | 78 |
| Difficulty | beginner | beginner |
| Openness score | 20 | 76 |
| Where to get help | Digilent Forum | Sipeed forum, r/GowinFPGA |
| Typical risks | Variant-specific records should be split before publishing exact resources. 35T and 100T variants differ | Verify exact board revision before using pin labels, constraints, or power assumptions. Onboard debugger recognition Flash persistence mode |
| Better for | beginner learning | beginner learning |