how to config adc s32k144

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how to config adc s32k144

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shingozhou
Contributor III

Hello,

   In practial terms, I have to convert 5 adc, these are ADC0_SE3, ADC0_SE8, ADC0_SE15, ADC1_SE4, ADC1_SE5.  And the sample values are saved in a array[5]. It's said that the LPIT could be used as the ADC hardware trigger source through TRGMUX in the refernce manual. But how to configure the LPIT, ADC,TRGMUX using S32K144_SDK_gcc in S32 Design Studio v2.0?

    The demo "adc_swtrigger_s32k144" is using endless loop to wait for converting finish, there is not in line with the actual project.

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danielmartynek
NXP TechSupport
NXP TechSupport

Hello,

Unfortunately, we don’t have such a sample code.

There is only adc_hwtrigger_s32k144 SDK example that shows use of PDB.

LPIT can trigger only 4 channels of each ADC module (ADHWTS A-D).

But TRGMUX allows to select one LPIT channel as a trigger source for one channel of both ADC modules.

So both ADC modules can be triggered simultaneously.

 

Do you have any specific problem with the SDK setting?

 

Regards,

Daniel