ADC channel initialization not competed when using fsl_adc16 component?

walter_wang — Tue, 03 Mar 2015 07:31:52 GMT

I'm using KDS2.0 and KSDK 1.1.1, my project with KSDK and PE enabled for FRDM-K22F platform.

After adding fsl_adc16 component to my project, I configured 3 channels in Channel configurations of "Property" page in Component inspector and enabled Auto-initialization.

However, after code generation, I look into the function Components_Init(void) in Cpu.c, only found codes below generated:

/*! ADC0 Auto initialization start */

ADC16_DRV_Init(FSL_ADC0, &ADC0_InitConfig0);

ADC16_DRV_ConfigConvChn(FSL_ADC0, 0U, &ADC0_ChnConfig0);

/*! ADC0 Auto initialization end */

Looks only 1 channel has been initialized. But actually 3 channels defined in this fsl_adc16 component, and I can find 3 structures in ADC0.c respectively, e.g. ADC0_ChnConfig0, ADC0_ChnConfig1 and ADC0_ChnConfig2.

Is this a bug of fsl_adc16? Or need further settings?

Re: ADC channel initialization not competed when using fsl_adc16 component?

walter_wang — Tue, 03 Mar 2015 07:47:47 GMT

OK, It looks clear after reading the implementation code of ADC16_DRV_ConfigConvChn().

This function is just config the ADC with information in ADC0_ChnConfigx and writing to register ADC_SC1... An AD conversion thus is triggered.

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ADC channel initialization not competed when using fsl_adc16 component?

Re: ADC channel initialization not competed when using fsl_adc16 component?