Thread Subject: Continuous polling with RS232 Matlab GUI

I've made a GUI in matlab to read data via RS232 and plot
it to a graph. The only problem is I have to keep pressing
a button to send a 'getdata' command to my microcontroller
via RS232 so it sends the data back. I want to implement
this in continuously/real time so I don't have to keep
pressing a button to communicate with my device. I've
written while loops and that just freezes my program, i've
also tried a checkbox so if it's checked it gets data and
that also freezes the GUI.

Just wanted to know if there is a successful way to get
real time data without crashing my program, thanks

"jim smith" <jimsmith@mathworks.com> wrote in message
<fq8sde$g79$1@fred.mathworks.com>...
> I've made a GUI in matlab to read data via RS232 and plot
> it to a graph. The only problem is I have to keep
pressing
> a button to send a 'getdata' command to my
microcontroller
> via RS232 so it sends the data back. I want to implement
> this in continuously/real time so I don't have to keep
> pressing a button to communicate with my device. I've
> written while loops and that just freezes my program,
i've
> also tried a checkbox so if it's checked it gets data and
> that also freezes the GUI.
>
> Just wanted to know if there is a successful way to get
> real time data without crashing my program, thanks

Hi Jim, unfortunately I can't help you out but I also am
interested in plotting RS232 transported data would you be
able to share your code with me?
thnaks
Jason

Jim would you be able to share ur code with me?? im working
on some thing similar my id is vedvern@hotmail.com

"jim smith" <jimsmith@mathworks.com> wrote in message
<fq8sde$g79$1@fred.mathworks.com>...
> I've made a GUI in matlab to read data via RS232 and
plot
> it to a graph. The only problem is I have to keep
pressing
> a button to send a 'getdata' command to my
microcontroller
> via RS232 so it sends the data back. I want to implement
> this in continuously/real time so I don't have to keep
> pressing a button to communicate with my device. I've
> written while loops and that just freezes my program,
i've
> also tried a checkbox so if it's checked it gets data
and
> that also freezes the GUI.
>
> Just wanted to know if there is a successful way to get
> real time data without crashing my program, thanks

hi jim, i m doin a similiar gui, can u share wit me ur
codes, i will b very grateful!

"jim smith" <jimsmith@mathworks.com> wrote in message
<fq8sde$g79$1@fred.mathworks.com>...
> I've made a GUI in matlab to read data via RS232 and
plot
> it to a graph. The only problem is I have to keep
pressing
> a button to send a 'getdata' command to my
microcontroller
> via RS232 so it sends the data back. I want to implement
> this in continuously/real time so I don't have to keep
> pressing a button to communicate with my device. I've
> written while loops and that just freezes my program,
i've
> also tried a checkbox so if it's checked it gets data
and
> that also freezes the GUI.
>
> Just wanted to know if there is a successful way to get
> real time data without crashing my program, thanks


You may look at the post "Read Serial Port from RS232
Continuously" under serial port tag.

Hope that helps you.

"jim smith" <jimsmith@mathworks.com> wrote in message
<fq8sde$g79$1@fred.mathworks.com>...
> I've made a GUI in matlab to read data via RS232 and
plot
> it to a graph. The only problem is I have to keep
pressing
> a button to send a 'getdata' command to my
microcontroller
> via RS232 so it sends the data back. I want to implement
> this in continuously/real time so I don't have to keep
> pressing a button to communicate with my device. I've
> written while loops and that just freezes my program,
i've
> also tried a checkbox so if it's checked it gets data
and
> that also freezes the GUI.
>
> Just wanted to know if there is a successful way to get
> real time data without crashing my program, thanks

hi jim, i m doin a similiar gui, can u share wit me ur
codes, i will b very grateful! and this my email:
odick85@yahoo.com

I am working to get an FPGA to communicate through rs232 and
read it into Matlab. If you wouldn't mind sharing your code
or giving some hints on where to start I would appreciate
it so much. Thank you.

Jeremy

email: LukeGlue@hotmail.com