Hello, i use the flash utility to download a hex file on my Philips LPC2294 Microcontroller when i click on the button “upload to flash” i become the message “cannot open COM port!” the microcontroller communicate with my computer via Keil Unlink USB what can be the reason why the communication …

Cannot open COM port - Flash utility 200

andrey March 26, 2006, 1:35am 2

the Philips ISP utility is supposed to just talk to UART0 on your MCU. In BSL mode, the MCU runs a bootloader program that sits and waits for communication over the UART.

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Cannot open COM port - Flash utility 200

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