Messages in this thread | | | From | <> | Subject | Re: [PATCH 0/3] iio: adc: Fix flags in sigma-delta drivers | Date | Tue, 3 Aug 2021 12:17:41 +0300 |
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In Sigma-Delta devices the SDO line is also used as an interrupt. Leaving IRQ on level instead of falling might trigger a sample read when the IRQ is enabled, as the SDO line is already low. Not sure if SDO line will always imediately go high in ad_sd_buffer_postenable before the IRQ is enabled.
Also the datasheets seem to explicitly say the falling edge of the SDO should be used as an interrupt.
-Alexandru
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