This video highlights the differences between the Tang Nano 20K FPGA development board and the Tang Nano 9K. Both boards are inexpensive development boards that can be used on breadboards for experiments and learning. I use the development tools from Gowin.

Chapters:
0:00 Intro
0:27 FPGA differences
1:31 Board differences
3:13 Clock control
5:45 Pins and pinout
7:37 PicoRV32
9:32 Resources and timing

Links
github for PicoRV32 miniSoC for Tang Nano 20:
https://github.com/grughuhler/picorv3...

Videos
Getting started with Tang Nano 9K:    • Getting started with the Tang Nano 9K...  
PicoRV32 on Tang Nano 9K:    • Tang Nano 9K Simple PicoRV32based So...  
Inferred SRAM for PicoRV32:    • Tango Nano 9K PicoRV32 SoC: More Flex...  
WS2812B RGB LEDs:    • WS2812B Addressable RGB LEDs and Rasp...