LABVIEW USART synchronization and one of the stm32

Hi all!

I try to control stm32 usart using labview to send the USART for example the baud rate settings. so to make things clear, I will give an example:

at the beginning of the stm32 and labview two baudrate 9600, the user chose 115200 (on the labview interface) to communicate with the baudrate for the next operation. the problem is that I can't change baud rate to 115200 visa because stm32 still set to 9600.

so I had an idea:

-J' I send information 115200 without changing baud rate of visa (yet to 9600)

-stm32 receive 115200 information but do not change the configuration of the usart (always 9600) because labview that he will solve his USART

-stm32 send (with 9600 baud) to labview that he will solve his USART

-labview already becomes his baudrate 115200 (then stm32 changed his USART at 115 200 baud)

==> now both of them are set up to 115200 baud

my problems are:

-is the right solution?

-If yes how labview change baud rate and making him choose between the former baudrate (9600) and the new one (115200)?

I'll be greatfull if someone helpe me and make me some tips?

Best regards

What you're basically describing is a method of exchanging simple confirmation. LabVIEW tells the micro to change its transmission speed. The microphone responds by saying "OK, I'll change." Your LabVIEW application assumes while the microphone has changed its flow baud rate, so he goes ahead and alters its baud rate to match. Without doubt, you have a simple "are you is order" who can be sent to the microphone to check the baud rate change. If this isn't the case, it is probably worth investigating.

As to your question concerning the change of rate of baud in LabVIEW, a simple solution is to close the existing session of VISA and call the VISA VI set up the Serial Port with the new baud rate.

Tags: NI Software

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