Hi,
I have an PC application written in VB, that interface to a MCU datalogger through RS232. It work perfect on PC with Serial port.
For some notebook, which do not come with serial port, I have use USB to RS232 Converter, and it work fine as well.
However, when the notebook computer enter standby mode, and after it wake up, my VB application is fail to read the USB to RS232 converter, it seem like the USB -RS232 converter is hang and not initialize after wake up from standby mode, and my VB program return Error: can't open port.
Any idea what I can do to resolved this problem?
Thank you,
I have an PC application written in VB, that interface to a MCU datalogger through RS232. It work perfect on PC with Serial port.
For some notebook, which do not come with serial port, I have use USB to RS232 Converter, and it work fine as well.
However, when the notebook computer enter standby mode, and after it wake up, my VB application is fail to read the USB to RS232 converter, it seem like the USB -RS232 converter is hang and not initialize after wake up from standby mode, and my VB program return Error: can't open port.
Any idea what I can do to resolved this problem?
Thank you,