Linux/ADS1299: I want more than data, Like ADS1299 eeg program

Keunsoo Shin

Prodigy 75 points

Part Number: ADS1299
Other Parts Discussed in Thread: , ADS1292

Tool/software: Linux

I make program communicate between raspberry pie and ads 1299.

I use RDATA to receive data.

so I can receive only one sample data at a time.

but ads1299 eeg program was able to receive several sample data from one cs low ~ high timing

How can I get data from Raspberry? Like ads1299 eeg program.

my c code logic

if(digitalRead(PIN_DRDY)==LOW){

int32_t output[9];

sendCommand(_RDATA);

int32_t dataPacket;

unsigned char* dataByte;

for(int i=0;i<9;i++){

for(int j=0; j<3; j++){

dataByte = dataTransfer(0x00);

dataPacket = (dataPacket <<8) | *dataByte;

}

output[i] = dataPacket;

}

digitalWrite(PIN_CS,HIGH);

return output;

}

over 6 years ago

0 Alexander Smith over 6 years ago

TI__Guru 55062 points

Hi Keunsoo,

Thanks for your post!

I would recommend downloading the software for the ADS1299EEGFE-PDK, located here: www.ti.com/.../ADS1299EEGFE-PDK

If you accept my friend request I can also send you the labview software (includes C code) for the ADS1292 that may be helpful.

Keep in mind that code is provided “as-is” and modifications/changes are not supported. Also note that this software is optimized for our evaluation platforms and therefore may not be well suited to end-equipment applications.

0 Keunsoo Shin over 6 years ago in reply to Alexander Smith

Prodigy 75 points

I use ADS1299EEGFE-PDK board and ADS1299EEGFE-PDK application program

this osiloscop picture is also picture of ads1299EEGFE-PDK application program

But all I want is Receving the above data(many samples at a time) on other devices like raspberry pies. like a ads1299EEGFE-PDK application

and only use raspberry pi and ads1299EEGFE board without ads1299EEGFE-PDK

Is it impossible without ADS1299EEGFE-PDK??

0 Alexander Smith over 6 years ago in reply to Keunsoo Shin

TI__Guru 55062 points

Hi Keunsoo,

I apologize, I did not understand the question initially.

What I think you're asking about is how to receive data continuously as opposed to one sample at a time. Correct?
You want to do this without using the MMB0 motheboard, and use a Raspberrypi instead. Correct?

Please review section 9.5 of the ADS1299 datasheet. Especially 9.5.3.7, RDATAC: Read Data Continuous.
These threads should help as well: e2e.ti.com/.../2190119
e2e.ti.com/.../346609
e2e.ti.com/.../452144

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Linux/ADS1299: I want more than data, Like ADS1299 eeg program