PicoSoC demo

This example features a picorv32 soft CPU and a SoC based on it. To build the picosoc example, first navigate to the directory that contains examples for Xilinx 7-Series FPGAs. Then run the following commands:

Arty 35TArty 100TNexys 4 DDRBasys 3

TARGET="arty_35" make -C picosoc_demo

At completion, the bitstreams are located in the build directory:

cd picosoc_demo/build/<board>

Now you can upload the design with:

TARGET="<board type>" make download -C picosoc_demo

You should observe the following line in the OpenOCD output:

Info : JTAG tap: xc7.tap tap/device found: 0x0362d093 (mfg: 0x049 (Xilinx), part: 0x362d, ver: 0x0)

The UART output should look as follows:

Terminal ready
Press ENTER to continue..
Press ENTER to continue..
Press ENTER to continue..
Press ENTER to continue..

 ____  _          ____         ____
|  _ \(_) ___ ___/ ___|  ___  / ___|
| |_) | |/ __/ _ \___ \ / _ \| |
|  __/| | (_| (_) |__) | (_) | |___
|_|   |_|\___\___/____/ \___/ \____|


[9] Run simplistic benchmark

Command>

Note

PicoSoC uses baud rate of 460800 by default.

The board’s LED should blink at a regular rate from left to the right