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Hi,

Use Flash Magic to program a P89V51RC2 in ISP Mode;

I have directly Connected the COM1 of the PC with the pins RX and TX of the microprocessor...

With the command READ DEVICE SIGNATURE is verified this error:

"Failed to read the device signature (Operation Failed...) Accesing to device using the wrong protocol..."  or "UNABLE TO COMMUNICATE.(in use)..."

Who can help me?

thanks