Hi Kurian, It is always best to verify proper communications by observing the communication on an oscilloscope or logic analyzer. One consideration relates to the data length of the SPI peripheral. If you use the SS portion of the SPI peripheral, the SS will only stay low for the length of communication buffer. This may be 8 bits, 16 bits or 32 bits. For the ADS1220 the CS (SS) must stay low throughout the entire communications transaction. It is often better to control the SS manually by GPIO control. You can verify by one of the methods stated at the beginning. Best regards, Bob B
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