This project is a port of an older FPGA project of mine where a different CPU was used. Since the DE0-Nano board does not have an SD card holder, an external card holder was connected to the board with jumper wire. Here the following card holder from Waveshare was used. A microSD SanDisk Ultra 16GB was used as the SD card.
The output on the terminal should look like this, whereby the performance values can vary:
<<< FatFs filesystem benchmark >>>
Benchmark started ...
15541728 KiB total drive space.
15537488 KiB available.
Simple write/read test... OK
Performance write/read:
Write: 0.93 MB/s
Read : 1.40 MB/s
Benchmark end.
SEGGER Embedded Studio for RISC-V was used as the development environment. This time there is no further description but only this small readme available.
| Board | Terasic DE0-Nano |
|---|---|
| FPGA | Cyclone IV EP4CE22F17C6N |
| Quartus | 15.0.2 |
| clk_i | 100 MHz |
| Terminal | 19200, 8, N, 1 |