Files
retroSoC/tests/test_uart.py
T
maksyuki 0130825057 feat: add UART V2 support with formal verification and test cases
- Updated filelist to include new UART source files.
- Enhanced formal file generation script to support UART target.
- Introduced formal verification module and properties for UART.
- Modified makefiles to include UART in formal targets and source files.
- Added UART-related source files to software build.
- Updated top-level wrapper to integrate UART DMA signals.
- Implemented UART testbench for comprehensive testing of functionality.
- Created Python test script for UART V2 register, FIFO, and interrupt tests.
- Added UART helper functions in C test runtime.
- Updated DMA error testbench to handle UART signals.
- Ensured WS2812 DMA testbench accommodates UART signals.
2026-08-08 23:10:56 +08:00

67 lines
2.1 KiB
Python

"""UART V2 register, FIFO, framing, interrupt, and DMA request tests."""
from __future__ import annotations
import shutil
import subprocess
import sys
from pathlib import Path
ROOT = Path(__file__).resolve().parents[1]
def test_uart_v2_register_fifo_loopback_and_errors(tmp_path: Path) -> None:
iverilog = shutil.which("iverilog")
vvp = shutil.which("vvp")
if iverilog is None or vvp is None:
return
common = ROOT / "rtl/managed/clusterip/common/rtl"
serial = ROOT / "rtl/ip/ribp/serial"
cluster_uart = ROOT / "rtl/managed/clusterip/uart/rtl"
source_list = tmp_path / "uart.fl"
source_list.write_text(
"\n".join(
[
"+define+SV_ASSRT_DISABLE",
f"+incdir+{common}",
f"+incdir+{common / 'interface'}",
f"+incdir+{common / 'utils'}",
f"+incdir+{serial}",
str(common / "interface/ribp_if.sv"),
str(common / "utils/register.sv"),
str(common / "utils/fifo.sv"),
str(cluster_uart / "uart_if.sv"),
str(serial / "uart_baudgen.sv"),
str(serial / "ribp_uart_tx.sv"),
str(serial / "ribp_uart_rx.sv"),
str(serial / "uart_core.sv"),
str(serial / "uart_reg.sv"),
str(serial / "ribp_uart.sv"),
str(ROOT / "tests/rtl/uart_tb.sv"),
"",
]
),
encoding="utf-8",
)
converted = tmp_path / "uart_tb.v"
subprocess.run(
[
sys.executable,
str(ROOT / "rtl/mini/script/convt_sv2v.py"),
"-f",
str(source_list),
"--output",
str(converted),
],
check=True,
)
simulation = tmp_path / "uart_tb"
subprocess.run(
[iverilog, "-g2012", "-s", "uart_tb", "-o", str(simulation), str(converted)],
check=True,
)
result = subprocess.run([vvp, str(simulation)], text=True, capture_output=True, check=True)
assert "UART V2 register, FIFO, loopback, error, interrupt, and DMA test passed" in result.stdout