firstcommit

docs/소형마이컴/files/hexsend.py

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+#!/usr/bin/env python3
+import sys
+import time
+from pathlib import Path
+
+try:
+    import serial
+except ImportError:
+    print("pyserial이 필요합니다.")
+    print("설치: pip install pyserial")
+    sys.exit(1)
+
+PORT = "COM3"
+BAUD = 115200
+
+def read_hex_file(hex_path):
+    data = bytearray()
+
+    for line_no, raw_line in enumerate(hex_path.read_text(encoding="utf-8").splitlines(), start=1):
+        line = raw_line.split(";")[0].strip()
+
+        if not line:
+            continue
+
+        line = line.replace("0x", "").replace("0X", "")
+
+        if len(line) != 4:
+            raise ValueError(f"{line_no}번째 줄 오류: 16비트 HEX 4자리여야 함: {raw_line}")
+
+        word = int(line, 16)
+
+        high = (word >> 8) & 0xFF
+        low  = word & 0xFF
+
+        data.append(high)
+        data.append(low)
+
+    return data
+
+def main():
+    if len(sys.argv) != 2:
+        print("사용법: python hexsend.py led.hex")
+        sys.exit(1)
+
+    hex_path = Path(sys.argv[1])
+
+    if not hex_path.exists():
+        print(f"파일 없음: {hex_path}")
+        sys.exit(1)
+
+    send_data = read_hex_file(hex_path)
+
+
+    send_data.append(0xFF)
+    send_data.append(0xFF)
+
+
+    print(f"파일: {hex_path}")
+    print(f"전송 바이트 수: {len(send_data)}")
+    print("전송 데이터:")
+    print(send_data.hex(" ").upper())
+
+    ser = serial.Serial(
+        port=PORT,
+        baudrate=BAUD,
+        bytesize=serial.EIGHTBITS,
+        parity=serial.PARITY_NONE,
+        stopbits=serial.STOPBITS_ONE,
+        timeout=1
+    )
+
+    time.sleep(2)
+
+    ser.reset_input_buffer()
+    ser.reset_output_buffer()
+
+    ser.write(send_data)
+    ser.flush()
+    ser.close()
+
+    print()
+    print(f"{PORT}, {BAUD}bps 전송 완료")
+
+if __name__ == "__main__":
+    main()