MEMTool 49 connects the PC to your target hardware via several physical interfaces:
Infineon MemTool is a Windows-based utility for programming and configuring Infineon microcontroller and memory devices. “MemTool 49” typically refers to version 4.9 of the tool (shortened as “49”), which introduced bug fixes, UI refinements, and support updates for specific Infineon devices. This article summarizes what MemTool 4.9 offers, how to install and use it, common workflows, troubleshooting tips, and alternatives. infineon memtool 49
Strictly speaking, Infineon has moved on. The modern Infineon ecosystem uses MemTool 5.x (part of AURIX Toolbox) for TriCore devices and iMOTION Tool for motor drives. The original MEMTool 49 is no longer officially updated. MEMTool 49 connects the PC to your target
However, obsolete does not mean useless. Hundreds of thousands of XC886/XC878-based motor controllers, power supplies, and automotive body control modules (BCMs) remain in active service. These devices cannot be programmed by AURIX tools. As such, MEMTool 49 remains a critical utility for maintenance, repair, and reverse engineering of existing products. Strictly speaking, Infineon has moved on
| Error message | Likely cause | Fix |
|----------------------------------------|---------------------------------------|----------------------------------------|
| DAS server not found | DAS service not running | Restart DAS via das_host.exe -start |
| Device ID mismatch | Wrong device selected | Manually set device in GUI |
| Flash verification failed at 0x... | Write protection or faulty flash | Check UC_BMHD, unlock if password-locked |
| Cannot halt core | Target stuck in reset or WDT issue | Hold reset, power cycle, or use BootROM |
| CAN connection timeout | Baud rate mismatch or missing term | Set 500kbps, check CAN termination (120Ω) |