https://github.com/T-head-Semi/openc906
https://github.com/T-head-Semi/openc906
https://stnolting.github.io/neorv32/#_general_purpose_input_and_output_port_gpio–neo
xuantie linux risc-v
https://github.com/T-head-Semi/openc906
https://github.com/T-head-Semi/openc906
https://stnolting.github.io/neorv32/#_general_purpose_input_and_output_port_gpio–neo
xuantie linux risc-v