DA14583 ADC Returning wrong value

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Tue, 2020-08-25 13:24

circatek

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Last seen:7 months 3 weeks ago

加入:2015-05-27 08:48

DA14583 ADC Returning wrong value

Hi,

We are seeing a problem when trying to read the ADC on the DA14583

We are applying 2100mv to the input, however, this is not working as expected.

The setup is as follows:

Attenuator is enabled (GPC_ADC_ATTN3X)

Single ended is enabled (GPC_ADC_SE)

We read a value of 323 ADC Counts

So in theory, the following calculation should work, however, the value is 1000mV low:

mV = ((1200.0 / 1023.0) * 323) * 3.0 = 1136mV

Please advise,

Thanks,

Nigel

Device:

DA14583

Tue, 2020-08-25 15:46

PM_Dialog

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Last seen:2 days 5 hours ago

加入:2018-02-08 11:03

Hi Nigel,

Thanks for your question. Would it be possible to share with me the code snippets that you are using for the ADC configuration?

Thanks, PM_Dialog