topic Re: LPC546 ADC with interrupt is not working in LPC Microcontrollers

LPC546 ADC with interrupt is not working

s-mwittw — Mon, 16 Dec 2019 17:27:14 GMT

hi,

we try to initialize the ADC module of the LPC54616J512.

The aim is to simply start a conversion by Software in the while loop and wait for the result. This is indicated in a flag that is set in the corresponding ISR of the ADC.

We tried to accomplish that with the help of the ConfigTool in MCUXpresso and some extra lines in the main ( mostly taken from the ADC-example with interrupts from the SDK examples ).

Debugging results: the Interrupt never occurs -> Flag is never set to true

We tried to get the ADC running and check results without ISR like it is done in the basic ADC example, but without success.

The most important code lines: ( The entire project is in the attachment )

and the BOARD_InitBootPeripherals() generated by the ConfigTool:

Hope anybody can help.

Thank you in advance :smileyhappy:

Best Regards

Michael

Re: LPC546 ADC with interrupt is not working

jeremyzhou — Tue, 17 Dec 2019 02:09:45 GMT

Hi Michael Wittwer,

Thank you for your interest in NXP Semiconductor products and
the opportunity to serve you.
To provide the fastest possible support, I'd like to suggest you refer to the ADC demo in the SDK library, please refer to it for details.

MCUXpresso SDK | Software Development for Kinetis, LPC, and i.MX MCUs | NXP

Have a great day,
TIC

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Re: LPC546 ADC with interrupt is not working

s-mwittw — Tue, 17 Dec 2019 08:17:10 GMT

we used SDK_2.6.0_LPC54616J512 from the SDK builder and the ADC interrupt demo, but no interrupt occurs there it seems.

Re: LPC546 ADC with interrupt is not working

jeremyzhou — Wed, 18 Dec 2019 08:24:37 GMT

Hi Michael Wittwer,

Thanks for your reply.
I've attached an ADC interrupt demo which is from the SDK library for the LPC54628, I run it in the MCUXpresso and it can enter the ADC's interrupt function, please refer to it for details.

Have a great day,
TIC

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