Kinetis Microcontrollers中的主题 Re: ADC callback for KE02

ADC callback for KE02

adam_zhou — Sat, 04 Feb 2017 11:09:54 GMT

I want to read values from the multiple ADC channels in interrupt mode. From the kexx_drv_lib, ADC_SetCallBack() sets the callback function and ADC_SetChannel() sets ADC channel. Can I set the multiple channels and then know which channel the value with ADC_ReadResultReg() is from in callback function?

Code example:

...

ADC_SetCallBack(ADC_CallBack);
ADC_Init(ADC, &sADC_Config);

ADC_SetChannel(ADC,ADC_CHANNEL_AD2)

ADC_SetChannel(ADC,ADC_CHANNEL_AD3)

ADC_SetChannel(ADC,ADC_CHANNEL_AD4)

...

void ADC_CallBack( void )

{

//Which ADC channel is this result from? Any function can be used?

uint16_t result = ADC_ReadResultReg(ADC);

}

Re: ADC callback for KE02

Robin_Shen — Tue, 14 Feb 2017 03:09:53 GMT

Sorry for the late reply!

This MCU doesn't have such a Register which include Channel Conversion Complete Flag.

Have you try to use the ADC_FIFO_demo in KEXX_DRIVERS_V1.2.1_DEVD.

Best Regards,

Robin

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Re: ADC callback for KE02

adam_zhou — Tue, 14 Feb 2017 14:26:53 GMT

Robin, you're right. ADC_FIFO_demo can work for me. Thanks.