recently to do the CH365 realize PCI connection and a serial port communication has a problem, write the LABVIEW control program was not sure if I was a successful call library function, the website without CH365 sample application, don't know if you have done something like that, I can thank you very much to some directions 
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helpless now, if you have know who can teach meCodePudding user response:
Try in a serial port pin to ground capacitanceCodePudding user response:
A serial port pins on the earth capacitance is what mean? This is considering the hardware design optimization? I now is not clear how labview control system for the IO port, control signal of how to write, how to obtain the address signal?
