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 My hardware requires RTS signal from PC COMx port be OFF state(negative voltage, about -9V), but Keil C51 debugger Monitor51 always turns on RTS signal(positive voltage, about +9V).Keil new ISD51 seems provide flexibility to select RTS be one</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator></channel></rss>