Memtool 49 !!better!! | Infineon

Note: There is no exact "Memtool 49". Most likely you mean Memtool v4.9x (e.g., v4.9.2, v4.9.6) – the last major version before Infineon shifted focus to Memtool 2024 (v5.x) and the newer Infineon Programming Tool (IPT).

Troubleshooting Common "Infineon MEMTool 49" Errors

| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | “Bootstrap mode not entered” | Wrong pin strapping or baud rate mismatch | Double-check TMS/P0.14 state. Reduce baud rate to 9600. | | “Communication timeout” | RS232 cable is null-modem vs straight | Swap TXD/RXD pins on your connector. | | “Flash verification failed at address 0x0000” | Power supply droop during programming | Increase decoupling capacitance near VDD. | | “Device ID mismatch (expected 0x8860, got 0xFFFF)” | Target not powered or clock missing | Check oscillator startup. XTAL may need longer settling time. | | “Security bit cannot be cleared” | Permanent write lock engaged | Replace MCU. Protection is physically irreversible. | infineon memtool 49

Best Practices for Using Infineon MEMTool 49

To avoid bricking devices or corrupting your flash, adhere to these rules: Note: There is no exact "Memtool 49"

1. Verify Clock Settings: Always double-check the external clock frequency. An incorrect setting will cause baud rate errors and unpredictable programming.
2. Use Slow Speeds for Bootstrap: 115200 baud might work on a bench but fail in noisy factory environments. Use 19200 for production.
3. Backup Entire Flash First: Before programming a customer-board, use Target > Upload to File to read the existing flash and EEPROM contents.
4. Separate Bootloader and App: Program the bootloader sector first with MEMTool, then use locking options to protect it. Then program the application via UART.
5. Log Everything: Enable Options > Log to File. This creates a timestamped record of every programming action—invaluable for ISO/TS 16949 compliance.

d) Scripting & Automation

• Batch mode via command-line parameters.
• Script files (.mts – Memtool Script) with commands like flash, erase, load, save, go, break, read.
• Export/import memory regions to binary or Intel HEX.

Typical use cases

• Flashing firmware images to Infineon microcontrollers during development or production.
• Backing up or restoring serial EEPROM contents.
• Configuring device-specific fuses, option bytes, or security settings.
• Batch programming multiple devices for small-scale manufacturing.

3. Typical Workflow with Memtool 4.9

1. Launch Memtool → Select device family and specific part number.
2. Configure connection (e.g., DAS → USB → MiniWiggler V3).
3. Connect to target – reads device ID, core status, and halt core.
4. Load application (File → Load HEX). Choose options:
   • Erase before programming.
   • Verify after programming.
   • Program only modified sectors.
5. Debug (if needed): Set breakpoints, reset and go, step through code.
6. Save memory (e.g., dump RAM to file for analysis).
7. Disconnect.