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Q&A AD7791 and STM32

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AD7791 and STM32

IGOMES on Jul 28, 2020

Hello

I am trying to communicate with AD7791 with STM32.
What are the minimum commands that I must send for the correct startup?

Thank you

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JellenieR
Jul 29, 2020 +1 verified
Hi,

We have a reference driver that you can use as a reference for starting your code.

https://wiki.analog.com/resources/tools-software/linux-drivers/iio-adc/ad7791

Reading an ID register is a simples…

+1 JellenieR

on Jul 29, 2020 3:34 AM
Hi,

We have a reference driver that you can use as a reference for starting your code.

https://wiki.analog.com/resources/tools-software/linux-drivers/iio-adc/ad7791

Reading an ID register is a simplest way and a first step of checking that you are communicating with the device. But there could still be a series of next/ steps to confirm that you are indeed communicating properly with the device. Writing to and reading back the same register is also recommended.

I suggest to see this FAQ as you may find it helpful to make your SPI interface more robust. Item 4 also discuss the recommended routine for initialization.

https://ez.analog.com/data_converters/precision_adcs/f/q-a/23871/digital-interface-faq---sigma-delta-adc

Thanks,

Jellenie
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