Design Example: Ti125 F225 Development Kit Design
Efinix preloads the Titanium Ti125 F225 Development Board with an example design that demonstrates the following functions:
- Calculates the moving positions of a spinning donut and renders the image through UART.
- Blinks 4 LEDs in an alternating pattern to create a running light effect.
- Displays the memory calibration status using LED5 and LED6. LED5 lights up when calibration completes, and LED6 lights up when calibration passes.
The Spinning Donut Program
Andy Sloane created this program in 2006. It draws a spinning donut in ASCII characters and sends the data through UART to a PC terminal. Andy Sloane explained the math behind the program to do the 3D rendering and its movement in his article, Donut math: how donut.c works.
The Running Light Program
This program demonstrates the RISC-V example design running on the development board. The LEDs illuminate sequentially, with a short delay between each LED. By default, the LEDs illuminate from top to bottom.
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