mirror of
https://github.com/olofk/serv.git
synced 2026-01-31 21:41:52 +00:00
91 lines
2.3 KiB
Markdown
91 lines
2.3 KiB
Markdown
SERV
|
|
====
|
|
|
|
Prerequisites
|
|
-------------
|
|
|
|
Create a directory to keep all the different parts of the project together. We
|
|
will refer to this directory as `$SERV from now on`
|
|
|
|
Download the main serv repo
|
|
|
|
`cd $SERV && git clone https://github.com/olofk/serv`
|
|
|
|
Install FuseSoC
|
|
|
|
`pip install fusesoc`
|
|
|
|
Initialize the FuseSoC standard libraries
|
|
|
|
`fusesoc init`
|
|
|
|
Create a workspace directory for FuseSoC
|
|
|
|
`mkdir $SERV/workspace`
|
|
|
|
Register the serv repo as a core library
|
|
|
|
`cd $SERV/workspace && fusesoc library add serv ../serv`
|
|
|
|
Check that the CPU passes the linter
|
|
|
|
`cd $SERV/workspace && fusesoc run --target=lint serv`
|
|
|
|
Running test software
|
|
---------------------
|
|
|
|
Build and run the single threaded zephyr hello world example with verilator
|
|
|
|
cd $SERV/workspace
|
|
fusesoc run --target=verilator_tb serv --uart_baudrate=57600 --firmware=../serv/sw/zephyr_hello.hex
|
|
|
|
..or... the multithreaded version
|
|
|
|
fusesoc run --target=verilator_tb serv --uart_baudrate=57600 --firmware=../serv/sw/zephyr_hello_mt.hex --memsize=16384
|
|
|
|
Other applications can be tested by compiling and converting to bin and then hex e.g. with makehex.py found in $SERV/serv/riscv-target/serv
|
|
|
|
Run the compliance tests
|
|
------------------------
|
|
|
|
Build the verilator model (if not already done)
|
|
|
|
`cd $SERV/workspace && fusesoc run --target=verilator_tb --setup --build serv`
|
|
|
|
Download the tests repo
|
|
|
|
`cd $SERV && git clone https://github.com/riscv/riscv-compliance`
|
|
|
|
Run the compliance tests
|
|
|
|
`cd $SERV/riscv-compliance && make TARGETDIR=$SERV/serv/riscv-target RISCV_TARGET=serv RISCV_DECICE=rv32i RISCV_ISA=rv32i TARGET_SIM=$SERV/workspace/build/serv_0/verilator_tb-verilator/Vserv_wrapper`
|
|
|
|
Run on hardware
|
|
---------------
|
|
|
|
Only supported so far is a single threaded Zephyr hello world example on the icebreaker and tinyFPGA BX boards
|
|
|
|
TinyFPGA BX
|
|
|
|
Pin B3 is used for UART output with 57600 baud rate.
|
|
|
|
cd $SERV/workspace
|
|
fusesoc run --target=tinyfpga_bx serv
|
|
tinyprog --program build/serv_0/tinyfpga_bx-icestorm/serv_0.bin
|
|
|
|
Icebreaker
|
|
|
|
Pin 9 is used for UART output with 57600 baud rate.
|
|
|
|
cd $SERV/workspace
|
|
fusesoc run --target=icebreaker serv
|
|
|
|
Run with `--firmware=../serv/sw/blinky.hex` as the last argument to run the LED blink example instead
|
|
|
|
TODO
|
|
----
|
|
|
|
- Interrupts don't seem to work.
|
|
- Applications have to be preloaded to RAM at compile-time
|
|
- Store bootloader and register file together in a RAM
|