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MEMS Inertial Sensors

Q&A Does ADXRS290 continue updating data register while sync pin is high??

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Cada11 on Aug 26, 2019

Datasheet says sync pin is kept high until the data is read but it doesn't say clearly that it stops updating data registors. In other words what happens when the gyro gives an interrupt but we wait before reading the data

0 pkern

on Sep 10, 2019 8:35 PM
Dear Cada11,

The XRS290 will continue sampling even after SYNC goes high, and the read back data will continue to update until the /CS pin goes low. At the point, the read back data will be frozen until it's read. SYNC goes inactive after the data is read. However, at no point does the gyro stop sampling. After /CS is released, the read back register is once again continuously updated.

- Paul Kern
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