Port TinyMaix to RiscyD2

Chip

Item	Parameter
Chip	RiscyD2 (softcore)
Arch	RV32IM
Freq	100M
Flash	48KB
RAM	8KB

Board

Digilent Arty-A7 (with XC7A35TICSG324-1L FPGA)

Development Environment

• GCC (riscv64-unknown-elf-gcc)
• Picolibc
• riscyd2.h
• Vivado

Step/Project

1. Build the core and load it to the board
2. Compile the program
3. Load it to the board using talk2d2.py
4. Listen to the incoming data from the board using listen2d2.py

Minor modifications in tm_port.h:

• printf is not used in favor of uart based printing (macro defined in main.c)
• TM_GET_US is not used in favor of cycles based time measurement (defined in riscyd2.h)

https://github.com/wpmed92/TinyMaix-RiscyD2

Result

config	mnist	Note
O0 CPU	18
O1 CPU	12

Author

wpmed92