Hi everyone,
As I know the ADS1292R is in the RDATAC mode when it powered-up, so the DRDY pin will generates pulse continuely with the frequency chosen.
When I use it, I found that I could read and write the registers. But when I finished the registers configuration and sent RDATAC and START command, the DRDY pulse is different with its performance in power-up step.
Here are the result I got from the logical analyzer:
I think this kind of DRDY pulse should be correct, and it is what the pin DRDY generated after powering-up:
This is what the pin DRDY generated after I sent the RDATAC and START command:
The frequency is both 250Hz, because I set the CONFIG1 as 0x01.
Is there something I ignored or configured wrong?
Thanks for your help.
Yuhang