TI AFE4490 on labview

[Damien11]

Another doc I have

http://www.datasheetlib.com/datasheet/327645/afe4400spo2evm_ti-texas-instruments.html

[Damien11]

There is the initialization board VI. However it's a writing (not reading) process, so i don"t konw if the board works or not...

[Dennis_Knutson]

I can't comment any further since you are unable to provide any information on the board you are using.

[nyc_(is_out_of_here)]

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@Damien11 wrote:

There is the initialization board VI. However it's a writing (not reading) process, so i don"t konw if the board works or not...

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If you had bothered reading the User's Guide, you would have read that there is software from the TI website that you can download to use with the evaluation board. You could at least verify operation of the board before continuing onward.

[Damien11]

I don't want to use the software provided by TI, it is not optimized for the expectations of my specifications. My supervisor recommended me labview because this software allows continuous acquisitions and that's what i'm looking for.

[Dennis_Knutson]

Tell your supervisor that you have been unable to provide the necessary information and you need help on Google in order to find it.

Most of us here are unpaid volunteers that are more than willing to help. Doing basic research such as the documentation on the serial protocol is, on my opinion, your task. No one can help if you can't provide the necessary details.

[Damien11]

I found a way to access the device from Labview, but since I do not have a driver from using the card, Labview to not recognize my device. I'm a bit of a stalemate I'll look for another solution.

When i try to initialize the device with the VISA tool, it doesn't recognize it. When I try to write something, an error occurs

VISA: (Hex 0xBFFF0015​) Timeout expired before operation completed.

[Dennis_Knutson]

You already posted an image that shows Com4 and LabVIEW will most definitely recognize that. It sounds like you have now used the VISA Wizard. That is a mistake. You just can't go making things up like that. Undo what you did and use the driver from TI that makes it a serial port.

[Damien11]

I finally found a way to read and write something in the board. Here is the VI.

The GUI software can save LEDs data in a excel file (signal 20140606_Volts_20140606_141155.xls). Now I have to take raw data from the spreadsheet and use them to calculate SPO2 rate and heart pulse.

I succeed calculating SPO2 rate but I'm a little lost now in using the different filters on labview. What kind of filter may I use ?

Regards

Damien

[bmeyer]

Hi Damien,

I believe I am trying to accomplish something similar to what you were doing -- I want to take in data from the AFE4490 through the COM port (same version you have) and calculate SpO2. Can please guide me through how to use your vi to do this?

Thanks for the help!