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P89V51Rx2/P89LV51Rx2 / P89V51RD2
December 19, 2011, 11:24:54 PM
Hi everyone

Am using a Philips 89V51RD2 controller and a Serial to USB communicator to connect it to my PC. I use PL2303 Prolific Driver for the RS232 to USB cable.

My problem is, I use Flash Magic and it says 'Reset your device into ISP mode' in red color when I try to load or erase flash. But when I press Reset button, It does not vanish and pressing reset button produces no response.

Also I tried to use the terminal and gave an uppercase U signal. Nothing gets echoed back and as soon as I give 'U' the flash magic's terminal becomes 'Not Responding'.

Kindly give me a suggestion to solve this problem.