Kinetis MicrocontrollersのトピックRe: Why can't I start an AD conversion in an interrupt service?

Why can't I start an AD conversion in an interrupt service?

unclemike — Tue, 07 Feb 2017 23:02:40 GMT

I am trying to see if I can get a MC9S08QE32 project running in a Kinetis KE02 and I am having trouble with the AD converter. AD conversions work when I start them in the foreground, but when I start a conversion inside an ISR I wind up in CPU_ivINT_Hard_Fault().

I am using Codewarrior 10.7.0

Thanks,

Michael

Re: Why can't I start an AD conversion in an interrupt service?

Robin_Shen — Wed, 08 Feb 2017 09:03:29 GMT

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

Or you can attached your project here, so that we can help you easier.

Best Regards,

Robin

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Re: Why can't I start an AD conversion in an interrupt service?

unclemike — Wed, 08 Feb 2017 20:50:22 GMT

Hi Robin:

I am doing all this to see what is involved in moving a project from a S08QE to a KE0x. The QE project was done with Codewarrior 10.6 and Processor Expert. I was trying to use them for the KE project as well.

It seems like NXP's preferred IDE for KE0x is IAR and KEXX Drivers. Is this correct? In 'MCUXpresso Supported Devices.pdf' in the KDS column it says "released", but in the KDSK 1.3 and KDSK 2.0 columns it says "no". It also says MCUXpresso support is not planned.

I would upload a zip file for you to look at, butI don't see a way to attach anything to this message.

Thank you for your time,

Michael

Re: Why can't I start an AD conversion in an interrupt service?

Robin_Shen — Thu, 09 Feb 2017 00:59:03 GMT

Hi Michael,

For the KE02\04\06 we recommand to use KEXX_DRIVERS_V1.2.1_DEVD. Because the KE02\04\06 is not on the support list of KSDK1.3 and KSDK2.0(MCUXpresso-SDK).

There are cw(CodeWarrior10.x) projects in KEXX_DRIVERS_V1.2.1_DEVD too. You can test these projects.

You can use KDS3.2 or CodeWarrior10.6 to generate Processor Expert project of KE0x.

See below attach method:

Best Regards,

Robin

Re: Why can't I start an AD conversion in an interrupt service?

unclemike — Thu, 09 Feb 2017 23:18:21 GMT

Hi Robin:

The good news is I am running now. Thanks!

Still puzzled by attachments... When I hit "reply" at the bottom of your post " I see "reply to robin_shen" and right below it is a gray bar that says:

B I (and more things I can't type)

there is no blue "use advanced editor", no blue "actions", and no blue "Attach" at the bottom of the window. the buttons are "post" and "cancel", no "add comment" or "add reply"

This is not so important now, but I may want to upload a file someday.

Xin Nian Kuai Le

Michael