Compares the uploaded hex file against the flashed memory to ensure data integrity.
: Can use RTS and DTR serial signals to automatically control the microcontroller's Reset and P0.14 pins to enter ISP mode.
Click on the "Upload" or "Program" button to select your .hex file.
Official NXP/Philips links are long dead. Use only trusted archives:
Microcontroller programming requires reliable In-System Programming (ISP) tools to bridge the gap between compiled hex files and physical hardware. For developers working with NXP (formerly Philips) LPC2000 series ARM7 microcontrollers, the remains a classic, lightweight solution for flashing firmware via a serial connection. philips lpc2000 flash utility v2.2.3 download
While the LPC2000 Flash Utility is a robust tool, it is legacy software and has documented issues, particularly with modern hardware.
Philips sold its semiconductor division to NXP in 2006. The utility is now obsolete and unsupported , but still works on older Windows (XP/7/8/10 32-bit; 64-bit may need compatibility mode).
If you encounter insurmountable compatibility issues on Windows 11, consider using these modern equivalents that support the exact same LPC ISP protocol:
Input the exact frequency of your external crystal oscillator in the field (e.g., enter 12000 for a 12 MHz crystal). 3. Execution Compares the uploaded hex file against the flashed
Uses the built-in In-System Programming (ISP) bootloader via a standard serial (COM/UART) port.
Click "Read Device ID" to confirm connection, then browse for your .hex file.
Disconnect the ISP pin from GND and reset the target board to execute your newly uploaded program. Troubleshooting Common Errors "Cannot Open Port" or "COM Port Not Available"
The Philips LPC2000 Flash Utility is a dedicated Windows-based application designed to communicate with the In-System Programming (ISP) bootloader embedded within the LPC2000 series microcontrollers. This utility eliminates the need for expensive JTAG programmers, allowing developers to upload, download, and erase flash memory using a standard RS-232 serial interface or a USB-to-UART converter. Supported Microcontroller Families Official NXP/Philips links are long dead
: Enter your target's crystal frequency in kHz (e.g., 12000 for a 12 MHz crystal). Load Firmware
The progress bar at the bottom will track the transmission. Once complete, a success message will appear in the log.
This is the most common error. First, ensure that the board is in ISP mode ( P0.14 is low during reset). Second, try disconnecting and reconnecting the serial cable. Third, click "Read Device ID" again immediately after resetting the board. Sometimes the timing is critical, and it may work on the second attempt.
Officially built for Windows 98/2000/XP. For modern operating systems (Windows 10 and Windows 11), you must run the executable in Compatibility Mode for Windows XP (Service Pack 3) and execute it with Administrator Privileges .
Note: Always scan downloaded executables with updated antivirus software before installation. Step-by-Step Installation Guide