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Forum Post: RE: ADS131E08: custome sample rate contains zeros in the data

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I have changed the SPI frequency, also I have added a slight delay after each byte of the command for the first three bytes in the command. Also, I have tied the start pin to high and cs to low. I have used the RDATA command and as you can see in chipsocpe they are 28 bytes commands. Yeah, the plot is 256 samples, because I have used a timer to capture only 256 times at 12800 sample per second in the timer ISR, also I have tested the full 320 samples and it’s the same, with the 320 samples, I have used the DRDY ISR in my MCU to capture the data. I have used the timer ISR to achieve the arbitrary sample rate reads of data! What should I do to achieve arbitrary sample rates!? Is it possible? Also if I use the fixed sample rates of for example 16Ksps using the DRDY ISR, there seems to be not a full wave cycle in 320 samples of data. Regards

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