Hi,
in Flash Magic Application Note 1 is a circuit (figure 1) with tristate gates to turn the signals RST and /PSEN on and off. I also want to make the signals RxD and TXD floating when the COM port is closed, because my application needs the serial port for a another transceiver (after programming). With two additional gates this would be possible, but can I use DTR and/or RTS for switching ? I think this depends on the state of the handshaking signals in the moment when 'U' is transmitted from Flash Magic ?
Thanks
in Flash Magic Application Note 1 is a circuit (figure 1) with tristate gates to turn the signals RST and /PSEN on and off. I also want to make the signals RxD and TXD floating when the COM port is closed, because my application needs the serial port for a another transceiver (after programming). With two additional gates this would be possible, but can I use DTR and/or RTS for switching ? I think this depends on the state of the handshaking signals in the moment when 'U' is transmitted from Flash Magic ?
Thanks