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Two questions about ADS1232REF board RS232 communication programming

Bo Qiang
Prodigy 110 points
Other Parts Discussed in Thread: ADS1232REF

Hi,

I am trying to develop a Matlab program to interface with the demo board ADS1232REF via serial port. I'm having the following two questions.

1. The serial programs works fine for hyperterminal in Windows but Matlab doesn't seem to work. Even the commands are sent, no bytes are received.

2. For the streaming command 'S', what is the sampling rate? 80?

 

Thanks.

 

Bo

  • 0
    TI__Guru* 97415 points

    Bo,

    1. I've never use Matlab as an inteface for the serial port, are you sure you have everything from the RS232 side hooked up correctly? Have you verified it with an oscilloscope?

    2. The Streaming command takes the data at what ever rate the board is set to. This is outlined on page 19 of the ADS1232REF User's Guide, under R-Set Data Rate. That would be either 10SPS or 80SPS depending on how R is set.

    Joseph Wu