| Customization: | Available |
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| Type: | Development Board |
| Trademark: | Sipeed |
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Tang Nano 9K FPGA board specifications:
8,640 logical units (LUTs)
6,480 flip-flop
17,280 bits shadow SRAM (SSRAM)
486 Kbit block SRAM (BSRAM)
64 Mbit PSRAM
608 Kbit user flash
2x PLL
Up to 276x user I/O
Storage - 32 Mbit SPI flash. MicroSD card socket
HDMI port
RGB interface connector
SPI interface connector
USB - USB Type-C port for power and JTAG programming
Expansion - 2x 24-pin headers with GPIOs, SPI, HDMI, PLL, clock, and power signals
Debugging - On-board BL702 USB-JTAG and USB-UART for GW1NR-9, that offers features similar to Sipeed RV-Debugger Plus
Misc - 6x User LED, 2x user buttons
Power Supply - 5V via USB
Dimensions - Approx 65 x 23 mm
Like other Tang Nano boards, the Tang Nano 9K FPGA board can be programmed with GOWIN IDE. While the documentation is currently only available in Chinese (English is coming soon), you'll find a sample for the RGB and HDMI video outputs on Github, and Martoni's HDMI interface for GameBoy DMG is apparently working on the board as well.
The comparison table below shows the difference between the three versions of Tang Nano boards.
Tango Nano 9K loses the Cortex-M3 core and support for the OV2640camera, but gains a MicroSD card, more display interfaces, a more complete debugger, and obviously extra logical units. If you wonder what you can do with the extra LUTs, the table below provides a starting point as GOWIN G1NR FPGAs can be used to run PicoRV32 soft core.
Tang Nano 4K would only be suitable for running a minimal PicoRV32 core without peripherals, but Tang Nano 9K can run any PicoRV32 core with all default peripherals, and you could create your own custom peripherals if needed as well, plus runs C code on top of the PicoRV32 soft-core. Sipeed links to the official PicoRV32 project on Github, but says the "PicoRV project running on Tang Nano 9K" is coming soon, so I'd take that it's not available just yet.
Sipeed is selling Tang Nano 9K board on for $14.99 and up depending on the options, as there are four kits with displays from 1.14-inch to 7-inch.
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