C5505 DSP Interface With Matlab/Simulink

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Talha 2011 年 5 月 23 日
hi, i am doing project of doing ECG on C5505 EVM. As till now i have successfully connected the EVM to pc and getting the signals. Now 1)i wanted to know how i be able to interface it with Matlab/Simulink. i can use both the USB or RS232 port.
2)I want the plots of ECG in realtime so that i can view and further analyze them
3)One thing more is it true that Simulink can be much easier for interfacing the DSP?? Cause i am new to matlab and dont know the code. It would be great help... Thanks...


Kaustubha Govind
Kaustubha Govind 2011 年 5 月 23 日
  1. You can interface with a serial port using a serial port object. Not sure about using the USB interface - does the EVM manufacturer provide driver DLLs? If yes, you can load it into MATLAB using either loadlibrary or calling it from a MEX-function.
  2. No inputs from me here - were you looking for advice on real-time processing? Note that since MATLAB/Simulink is not running on a real-time OS, it cannot deal with high-frequency inputs, but you may be able to get this working if MATLAB can acquire data fast enough for your application.
  3. I wouldn't say that Simulink is necessarily easier for interfacing with a DSP, unless you want to generate embedded code from your model and download it to the target.
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Walter Roberson
Walter Roberson 2011 年 6 月 1 日
Is the maximum amplitude about 3 x 10^4? If so that would correspond to a signed 16 bit integer, which would be a fairly common sampling format (though unsigned 16 bit integer would probably be more common.)


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