Hello !
I'm encountering some issues with synchronization by PIN in pulse mode.
Sometimes, (around one time on 1000), synchronization doesn't work.
In normal case, I rise up my SYNC pin, then DRDY stops during 600ms (correct time according to datasheet) , and DRDY appears.
Example:
BLUE (1) : SYNC PIN
LIGHT BLUE(2): SCLK
PURPLE (3) : DRDY ADS 1
GREEN (4) : DRDY ADS 2
When error occurs, it looks like that :
The SYNC pin doesn't stop data, and doesn't synchronize converters.
The fact that the problem occurs on both converters makes me think that the problem should come from my initialization, but I don't understand where is the problem.
To give more precisions, these are my initialization steps:
0) Reset all converters (by PIN)
1) SDATAC command / Configuration (pulse mode & minimal data rate) + configuration check
2) SDATAC command / Configuration (pulse mode & minimal data rate) + configuration check
3) Set SYNC pin low
4) RDATAC command on converter 1
5) RDATAC command on converter 2
6) Enable data reading on my system once SYNC pin is high
I don't know where to search, I read the datasheet about synchronization few times and didn't find anything.
If someone can help me, or at least telling me where could the problem come from, it could be great!
Best regards,
Romain.
