Serial Port Object

Question

arman Yaraee 2012-2-29

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https://ww2.mathworks.cn/matlabcentral/answers/30700-serial-port-object

Hello all. I have a serial port and made an object. my question is this. I have two variables which actually are two pins on the serial port: DataTernimalReady RequestToSend

Now I want to know if I set either of these to 'on' will they output voltage? Because I actually wan to use a RS232 to send voltage to a circuit. Anyone have any suggestions?

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Answer 1

Walter Roberson 2012-2-29

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You will have to ensure that hardware and software flow control are set off for the serial port. The voltages will be off until the port is fopen()'d.

A useful discussion of the hardware end of using RS232 for power is at http://www.analogservices.com/rs232.htm

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arman Yaraee 2012-2-29

What do you mean Hardware and software flow control. There is not hardware. I just want the serial to output voltage to a picaxe input. Thx for the fopen() tip but could u explain more on the flow control.

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