topic Initialization of Reset pin for MKL15Z64VTF4 with Codewarrior (rev. 10.3) and Processor Expert in CodeWarrior Development Tools

Initialization of Reset pin for MKL15Z64VTF4 with Codewarrior (rev. 10.3) and Processor Expert

sebastianoresti — Mon, 24 Feb 2014 11:09:27 GMT

Hello everybody,

I have the following specific question relevant to the way Processor Expert initializes the Reset pin for the MKL15Z64VTF4 microcontroller.

I want this pin to be used as Reset pin, then let Processor Expert auto-generate the code.

This is what I get (I am only reporting the code snippet of interest):

/* PORTA_PCR20: ISF=0,MUX=7 */

PORTA_PCR20 = (uint32_t)((PORTA_PCR20 & (uint32_t)~(uint32_t)(

PORT_PCR_ISF_MASK

)) | (uint32_t)(

PORT_PCR_MUX(0x07)

));

which is basically equivalent to:

PORTA_PCR20 = 0x00000700; /* ISF = 0, MUX = 7 */ <== this sets the Alternative 7 configuration

Now, according to the latest version of the datasheet of this microcontroller (rev. 3, 9/19/2012) available on the Freescale website, the PTA20 pin only considers the following two initialization possibilities:

- Default (RESET_b)

- ALT1 (PTA20)

Therefore, no ALT7 initialization is mentioned in the Datasheet.

Should the Datasheet be updated or there is an error in the Processor Expert?

Thanks.

Re: Initialization of Reset pin for MKL15Z64VTF4 with Codewarrior (rev. 10.3) and Processor Expert

Jorge_Gonzalez — Tue, 25 Feb 2014 23:59:23 GMT

Hello Sebastiano:

The documentation should have RESET_B in ALT7 instead of being blank. Sorry for this missing information, I have reported this. The Processor expert code is correct.

Hope this helps!

/Jorge Gonzalez

Re: Initialization of Reset pin for MKL15Z64VTF4 with Codewarrior (rev. 10.3) and Processor Expert

sebastianoresti — Wed, 26 Feb 2014 13:08:04 GMT

Dear Jorge,

thanks a lot for your clarification.

Kind regards,

Sebastiano

Da: Jorge_Gonzalez

Inviato: mercoledì 26 febbraio 2014 1.00

A: Restifo Sebastiano

Oggetto: Re: - Initialization of Reset pin for MKL15Z64VTF4 with Codewarrior (rev. 10.3) and Processor Expert

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Initialization of Reset pin for MKL15Z64VTF4 with Codewarrior (rev. 10.3) and Processor Expert

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