main.py

import tkinter as tk
from tkinter import filedialog, messagebox
import subprocess
from pathlib import Path

class JLinkLoaderApp:
    def __init__(self, root: tk.Tk):
        self.root = root
        self.root.title("J-Link Firmware Loader")

        self.label_firmware = tk.Label(root, text="Firmware File:")
        self.label_firmware.grid(row=0, column=0, padx=10, pady=10)

        self.entry_firmware = tk.Entry(root, width=50)
        self.entry_firmware.grid(row=0, column=1, padx=10, pady=10)

        self.button_browse = tk.Button(root, text="Browse", command=self.browse_file)
        self.button_browse.grid(row=0, column=2, padx=10, pady=10)

        self.button_load = tk.Button(root, text="Load Firmware", command=self.load_firmware)
        self.button_load.grid(row=1, column=1, padx=10, pady=10)

    def browse_file(self):
        filename = filedialog.askopenfilename(filetypes=[("HEX files", "*.hex"), ("All files", "*.*")])
        if filename:
            self.entry_firmware.delete(0, tk.END)
            self.entry_firmware.insert(0, filename)

    def load_firmware(self):
        firmware_path = Path(self.entry_firmware.get())
        if not firmware_path.is_file():
            messagebox.showerror("Error", "Please select a valid firmware file.")
            return

        try:
            self.run_jlink(firmware_path)
            messagebox.showinfo("Success", "Firmware loaded successfully.")
        except subprocess.CalledProcessError as e:
            messagebox.showerror("Error", f"Failed to load firmware: {e.stderr}")
        except Exception as e:
            messagebox.showerror("Error", f"An unexpected error occurred: {str(e)}")

    def run_jlink(self, firmware_path: Path):
        device = "XMC4700-2048"
        speed = 4000

        jlink_commands = f"""
        device {device}
        speed {speed}
        if SWD
        loadfile {firmware_path}
        r
        g
        exit
        """

        with open("jlink_script.jlink", "w") as script_file:
            script_file.write(jlink_commands)

        result = subprocess.run(["JLinkExe", "-CommanderScript", "jlink_script.jlink"], capture_output=True, text=True, check=True)
        if result.returncode != 0:
            raise subprocess.CalledProcessError(result.returncode, result.args, output=result.stdout, stderr=result.stderr)

if __name__ == "__main__":
    root = tk.Tk()
    app = JLinkLoaderApp(root)
    root.mainloop()