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Studio Bluetooth

niwa_1296046
New Contributor II

hi,

CYW20819 is a single-ended switched-capacitor sigma-delta ADC with 12 bits for Audio* measurements and 10 bits for DC measurements.

The application need a 11 or 12 bit ADC for DC measurements, don't need hight conversion rate (10KHZ), is there a way to get 12 bit general ADC?

Regards,

Nicole

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AnjanaM_61
Moderator
Moderator

Hi,

Q) The application need a 11 or 12 bit ADC for DC measurements, don't need hight conversion rate (10KHZ), is there a way to get 12 bit general ADC?

A) You can't configure it to 12 bit ADC. You may try using API  wiced_hal_adc_read_raw_sample ( 20819-A1_Bluetooth\include\20819\hal\wiced_hal_adc.h ) . It will give 16 bit raw value directly from the register. You can take the 12 bit value from that and can use in application as per your requirement.  Example : Code-Examples-BT-SDK-for-ModusToolbox/CYW920819EVB-02/apps/snip/hal at master · cypresssemiconductor...

Thanks,

Anjana

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