Ryan Malloy
13a9d804c6
boot_baud_probe.py: Probe all standard baud rates during G2 power-on to detect bootloader UART configuration differences. boot_capture.py: Capture and analyze G2 boot sequence output, with optional interrupt sequence injection to explore bootloader entry. ee_dump.py: Dump EEPROM indices from EE> submenu, identifying initialized vs. uninitialized (0x10101 sentinel) entries.
77 lines
2.1 KiB
Python
77 lines
2.1 KiB
Python
#!/usr/bin/env python3
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"""Dump all EEPROM indices from Winegard G2 firmware via RS-422."""
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import re
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import sys
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import time
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import serial
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PORT = "/dev/ttyUSB2"
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BAUD = 115200
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PROMPT = b">"
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MAX_INDEX = 100 # scan up to this index
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def send_cmd(ser: serial.Serial, cmd: str) -> str:
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"""Send command + CR, read until prompt '>'."""
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ser.reset_input_buffer()
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ser.write(f"{cmd}\r".encode("ascii"))
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buf = bytearray()
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while True:
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b = ser.read(1)
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if len(b) == 0:
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break # timeout
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buf.append(b[0])
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if b[0] == ord(">"):
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break
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return buf.decode("utf-8", errors="ignore")
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def main():
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ser = serial.Serial(PORT, BAUD, timeout=3)
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time.sleep(0.1)
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# Navigate to EE submenu
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send_cmd(ser, "q") # ensure root
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resp = send_cmd(ser, "eeprom")
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if "EE>" not in resp:
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print(f"Failed to enter EEPROM menu: {resp!r}", file=sys.stderr)
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ser.close()
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sys.exit(1)
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print(f"{'Index':>5} {'Decimal':>10} {'Hex':>10} Status")
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print("-" * 50)
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valid_count = 0
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for idx in range(MAX_INDEX + 1):
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resp = send_cmd(ser, f"ee {idx}")
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# Parse response
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if "Read value" in resp:
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match = re.search(r"Read value = (\d+)", resp)
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if match:
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val = int(match.group(1))
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print(f"{idx:>5} {val:>10} 0x{val:08X} OK")
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valid_count += 1
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elif "Failed to read" in resp:
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match = re.search(r"val:(\d+)", resp)
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val_str = match.group(1) if match else "?"
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val = int(val_str) if val_str != "?" else 0
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print(f"{idx:>5} {val:>10} 0x{val:08X} INVALID")
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else:
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# Unknown response - might be end of range
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clean = resp.strip().replace("\r\n", " | ")
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print(f"{idx:>5} {'':>10} {'':>10} ERROR: {clean}")
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print("-" * 50)
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print(f"Valid entries: {valid_count} / {MAX_INDEX + 1}")
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# Return to root
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send_cmd(ser, "q")
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ser.close()
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if __name__ == "__main__":
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main()
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