"Runtime setting type:" limited on ECT timer panels.

[jgirard1]

I am working with Processor Expert in CodeWarrior 5.1 for S12(X) processors.  My target is 9S12XA256.

The "Runtime setting type:" option in the ECT timer dialogs seems to be limited to "fixed value" only.  This option normally allows you to select the options: fixed value, from a list of values or from a time interval.

I have Processor Expert in "Expert" mode.  I have tried many different timer combinations, single, multiple, shared, etc. and I never get the full options for the ECT as the source when I use Capture or FreeCntr.  If I use TimerInt bean, then I get the full range of options.

I don't see why I couldn't alter the capture range during runtime if I wanted to, or change the rate of a FreeCntr compare timer.  Basically, I want to dynamically modify the prescaler settings for Capture operations to extend or compress my time window to optimize resolution.  Based on the frequency of the incoming pulse, I want to scale the Capture according to get the best resolution.

Is there some reason this setting would be limited for the Capture and FreeCntr beans for my application?

[Petr_H · Accepted solution]

Hi,

Unfortunately, it's a limitation of the Capture and FreeCntr that do not provide this functionality. If the user needs this to be available during run-time, it's necessary to do it in user code by directly accessing the registers.

The coverage of the timer peripheral features has been improved in the newly designed set of components called Logical Device Drivers, however, these components are available only on Kinetis Microcontrollers.

best regards

Petr Hradsky

Processor Expert Support Team

[vfilip]

Hello,

I have passed your request to developers to consider its support. I will let you know their decision soon.

best regards

Vojtech Filip

Processor Expert Support Team

[jgirard1]

Hi.  Any news on getting the S12(X) FreeCnt component updated to disable events by masking the timer interrupts?