ws50529
74 lines
2.0 KiB
Python
Executable File
74 lines
2.0 KiB
Python
Executable File
import re
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from fastapi import HTTPException
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from .config import MCU_BAUD_RATE, MCU_SERIAL_PORT, MCU_WRITE_TIMEOUT
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from .schemas import MCUWriteParams
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MCU_CMD_PATTERN = re.compile(r"^bodeplot=-?\d+,-?\d+,-?\d+,-?\d+,-?\d+$")
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def _serial_module():
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try:
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import serial
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except ImportError as exc:
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raise HTTPException(status_code=500, detail="MCU 串口功能需要安裝 pyserial") from exc
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return serial
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def write_mcu_command_response(params: MCUWriteParams):
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cmd = params.command.strip()
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if not MCU_CMD_PATTERN.fullmatch(cmd):
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raise HTTPException(status_code=400, detail="MCU 指令格式錯誤")
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target_port = (params.port or MCU_SERIAL_PORT).strip()
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if not target_port:
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raise HTTPException(status_code=400, detail="MCU 串口不可為空")
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serial = _serial_module()
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payload = (cmd + "\r\n").encode("ascii", errors="strict")
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try:
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with serial.Serial(
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port=target_port,
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baudrate=MCU_BAUD_RATE,
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timeout=MCU_WRITE_TIMEOUT,
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write_timeout=MCU_WRITE_TIMEOUT,
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) as ser:
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written = ser.write(payload)
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ser.flush()
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except serial.SerialException as exc:
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raise HTTPException(status_code=500, detail=f"MCU 串口傳送失敗: {str(exc)}") from exc
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return {
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"status": "ok",
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"command": cmd,
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"port": target_port,
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"baudrate": MCU_BAUD_RATE,
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"bytes_written": int(written),
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}
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def list_mcu_ports_response():
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_serial_module()
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try:
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from serial.tools import list_ports
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except ImportError as exc:
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raise HTTPException(status_code=500, detail="MCU 串口清單功能需要安裝 pyserial") from exc
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ports = [
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{
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"device": port.device,
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"description": port.description or "",
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"hwid": port.hwid or "",
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}
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for port in list_ports.comports()
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]
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return {
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"default_port": MCU_SERIAL_PORT,
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"baudrate": MCU_BAUD_RATE,
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"ports": ports,
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}
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