Infineon Memtool 4.9 is a Windows-based utility designed for flashing, erasing, and verifying program memory on Infineon microcontrollers. It serves as the primary PC-side interface for on-board programming via bootstrap loader (BSL) or JTAG/debug interfaces.
It is a critical tool for embedded systems engineers working with the Infineon AURIX™ (TC2xx, TC3xx), TRICORE™, XC800, and XC2000 families. Version 4.9 specifically marked a significant milestone by introducing robust support for the AURIX TC3xx series and modernizing the user interface for high-speed data transfer.
Problem: "Connection Failed" / "DAS Server Error"
Problem: "Bootstrap Loader Mode Not Entered" (ASC)
Problem: "Flash Programming Failed"
Problem: "Hex file address out of range"
| Feature | Memtool v4.9 | Infineon Programming Tool (2024+) | |--------|-------------|-----------------------------------| | XC800/166/2000 | ✅ Perfect | ❌ Not supported | | AURIX / XMC | ❌ No | ✅ Yes | | GUI | Old but works | Modern, resizable | | UART Bootloader | ✅ Yes | ✅ Yes | | JTAG/DAS | ✅ Yes | ✅ Yes | | Command line | ✅ Yes | ✅ Yes | | License | Free | Free |
Batch flash without GUI:
Memtool.exe -d TC277 -i "firmware.hex" -e -p -v -c DAS:USB:0
Example .mts script (flash_script.mts):
connect DAS:USB:0
halt
erase 0x80000000 0x80040000
load "app.hex" binary 0x80000000
verify "app.hex" binary 0x80000000
go 0x80000000
disconnect
Execute via: Memtool.exe -s flash_script.mts
If your work touches legacy Infineon C166 or XC800 microcontrollers, Infineon MEMTool 49 is not just a tool—it is a lifeline. Its unmatched bootstrap loader reliability, direct flash editing, and security bit management make it superior to any general-purpose programmer for these specific families.
While the interface looks retro and the documentation can be sparse, the tool is rock-solid. By following the setup and best practices outlined in this guide, you can confidently program, secure, and revive XC16x and XC800-based systems for years to come.
Key Takeaway: Do not discard old laptops with real RS232 ports just yet. Pair one with MEMTool 49, and you have the most reliable flash programming station for Infineon’s 16-bit legacy. infineon memtool 49
Have a specific question about using MEMTool 49 with the XC886 or XC167? Drop a comment below or consult the original Infineon Application Note AP24211 – “Bootstrap Loader for XC800.”
Let’s walk through a typical use case: programming a blank XC886 device via a serial bootloader.
| Feature | Memtool 4.9 | AURIX Memtool (newer) | Infineon IDE (IDS) | UDE (PLS) | |--------------------------|-------------------|-----------------------|--------------------|------------| | Low-level flashing | ✅ Excellent | ✅ Excellent | ✅ Via plugins | ✅ | | Scripting | ✅ .mts scripts | ✅ Enhanced | ❌ No | ✅ Tcl | | Full debugger | ⚠️ Basic | ⚠️ Basic | ✅ Full (Eclipse) | ✅ Full | | Trace/Profiling | ❌ No | ❌ No | ❌ No | ✅ | | Free of charge | ✅ Yes | ✅ Yes (with DAS) | ✅ Yes (free IDE) | ❌ Paid | | Supports TC4x | ❌ No (too old) | ✅ Yes | ✅ Yes | ✅ |
Conclusion: Memtool 4.9 is for fast flashing and simple debug, not complex application development. Infineon Memtool 4