Autosar S32k14x Mcal 4.2 can not choose Adc Group Enable Double Buffering in Adc module.

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Autosar S32k14x Mcal 4.2 can not choose Adc Group Enable Double Buffering in Adc module.

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郑文豪
Contributor I
 

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I have set ADC_ACCESS_MODE_STREAMING Access Mode, ADC_DMA. Adc Group Enable Double Buffering can not be selected.

 

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3 Replies

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namnguyenviet
NXP Employee
NXP Employee

Not sure if you have found out the solution, but you can refer to: 3.6.4.3 Enable Double Buffering Optimization chapter in AUTOSAR_MCAL_ADC_UM.pdf (ASR_4.2_RTM_1.0.4 version).

Best Regards,

Nam

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郑文豪
Contributor I

Is there a manual about Double Buffering? Now I have some problems about this,for example,why needs two DMA channels on ADC0 if multiple channels ,can one DMA  achives the same effect?

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郑文豪
Contributor I

heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelp me:(

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