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ADC Calibrated Reading introduces offset when Data rate is changed #384

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sjpark608 opened this issue Sep 14, 2023 · 0 comments
Open

ADC Calibrated Reading introduces offset when Data rate is changed #384

sjpark608 opened this issue Sep 14, 2023 · 0 comments
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ADC bug Something isn't working Calibration priority/P1

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sjpark608 commented Sep 14, 2023 •
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After calibrating the ADC input at 38400 data rate, the measurements at 20SPS introduce some offset voltage around 3mV.

  • both ADC1 and ADC2 reading exhibit the same offset, but ADC1 has worse offset
  • Differential also show s little offset but not as severe as single-ended
@sjpark608 sjpark608 self-assigned this Sep 14, 2023
sjpark608 added a commit that referenced this issue Sep 14, 2023
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#384 single-ended calculation had offset
ce2d6e6
@sjpark608 sjpark608 mentioned this issue Sep 14, 2023
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sjpark608 added a commit that referenced this issue Sep 14, 2023
@sjpark608
Adc calibration issue (#385)
cfa8533 
* #384 single-ended calculation had offset

* Update adc_voltage.py

* handling voltages

* need testing

* Update adc_voltage.py

lint fix

* suggested fix

data bytes were assigned with integer number, now using constant
This was referenced Sep 15, 2023
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ADC bug Something isn't working Calibration priority/P1
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