S32K344 - ADC pre-sampling / presampling time

[kyf]

Hello NXP team!

Please can someone let me know where I can find more information regarding ADC presampling time and it's configurations ?

I've seen that PST is used in the ADC Total_conversion_time calculation but I can not find any register or details about it's configuration.

The only configuration that I've found regarding PST is inside ADC_Sar_Ip and it is only a check box.

I've set the sampling time here:

But I can not where I can configure the pre-sampling time.

The files that I've searched is the RM of S32K344 and the ADC guide AN13413. Is there anything else that I've probably missed ?!

Kind regards,

kyf

[_Leo_ · Accepted solution]

Hi,

Thank you so much for your interest in our products and for using our community.

The corresponding configuration fields are described in the reference manual, 59.3.9 Presampling section. Later, in the 59.3.18 Conversion time section, it states that the presampling time is sample time plus one cycle of AD_clk.

Hope it helps you.

Have a nice day!

[kyf]

Good morning @_Leo_.

Thank you for reaching out and thank you for answering my question.