Hello forum,
I designed a simple development board with FPGA from GowinSemi - IC model: GW1N-LV9LQ144C6/I5. Here is link to mouser.com with this product:
https://www.mouser.com/ProductDetai...W1N-LV9LQ144C6-I5?qs=wnTfsH77Xs6N/yGezJZrJQ==
https://www.gowinsemi.com/en/product/detail/46/
This is basic FPGA with 8640 LUT and 120 I/Os in LQFP-144 case. The amount of resources allow conduct experiments with Soft-CPU (for example with RISC-V soft-cores). My main goal was to design FPGA development which is cheap, but is suitable for beginners. Apart the FPGA itself the board is equipped with:
1) 24 MHz clock circuit
2) LDO voltage controllers and switches for configuring FPGA I/O Banks (three voltages: 3.3V , 2.5V and 1.2 V
3) FPGA Mode switches (for boot mode)
4) Setup circuitry (Reconfig, Done etc.)
5) FPGA reset circuit
6) USB to JTAG based on FTDI chip FT 2232HL (allowing programing by USB socket)
7) JTAG Header for alternating programming by "Gowin Cable" external programmer
8) Additional 32Mb SPI flash IC
9) 8MB of PSRAM (Pseudo RAM) alowing big frame-buffers
10) DSub15 VGA connector
11) 8 user LEDs
12) 8 DIP-Switches
13) 5 Push Buttons
14) TF (uSD) card module
15) Simple audio output
16) 59 I/O pins led out to the three goldpin connectors
I wanted the FPGA kit had the opportunity to program by USB socket and did not require expensive external programer (Gowin "USB Cable"), hence the use of the FTDI chip . I also wanted the FPGA board bring out a large number of I/O pins. I don't plan to output differential pins (LVDS) with impedance and length control on PCB. Here is finished schematic:
It remains to design the PCB.
This is how the initial arrangement of components on the PCB looks like:
Please be so kind to give me a feedback about this design
I will update thread when i finish PCB design.
Regards
I designed a simple development board with FPGA from GowinSemi - IC model: GW1N-LV9LQ144C6/I5. Here is link to mouser.com with this product:
https://www.mouser.com/ProductDetai...W1N-LV9LQ144C6-I5?qs=wnTfsH77Xs6N/yGezJZrJQ==
https://www.gowinsemi.com/en/product/detail/46/
This is basic FPGA with 8640 LUT and 120 I/Os in LQFP-144 case. The amount of resources allow conduct experiments with Soft-CPU (for example with RISC-V soft-cores). My main goal was to design FPGA development which is cheap, but is suitable for beginners. Apart the FPGA itself the board is equipped with:
1) 24 MHz clock circuit
2) LDO voltage controllers and switches for configuring FPGA I/O Banks (three voltages: 3.3V , 2.5V and 1.2 V
3) FPGA Mode switches (for boot mode)
4) Setup circuitry (Reconfig, Done etc.)
5) FPGA reset circuit
6) USB to JTAG based on FTDI chip FT 2232HL (allowing programing by USB socket)
7) JTAG Header for alternating programming by "Gowin Cable" external programmer
8) Additional 32Mb SPI flash IC
9) 8MB of PSRAM (Pseudo RAM) alowing big frame-buffers
10) DSub15 VGA connector
11) 8 user LEDs
12) 8 DIP-Switches
13) 5 Push Buttons
14) TF (uSD) card module
15) Simple audio output
16) 59 I/O pins led out to the three goldpin connectors
I wanted the FPGA kit had the opportunity to program by USB socket and did not require expensive external programer (Gowin "USB Cable"), hence the use of the FTDI chip . I also wanted the FPGA board bring out a large number of I/O pins. I don't plan to output differential pins (LVDS) with impedance and length control on PCB. Here is finished schematic:
It remains to design the PCB.
This is how the initial arrangement of components on the PCB looks like:
Please be so kind to give me a feedback about this design
I will update thread when i finish PCB design.
Regards
