The core board contains the minimum system for an Alter FPGA (Cyclone III EP3C25). (The board is designed using Altium Designer 17.1)
The 2D and 3D design views are shown below:
The main features are:
- Altera EP3C25Q240 FPGA IC as the main chip controls the robot. The firmware can be found in its repository.
- External 64Mbit SDRAM (HY57V641620) as the memory for Nios II processor created in FPGA.
- External 64Mbit Flash (JS28F640) as the flash for storage.
- 4LEDs indicate hall sensor failure of each driving motor.
The photos of the core board are shown below as references.