topic Re: SPI INTERFACING WITH KL25Z in Kinetis Microcontrollers

SPI INTERFACING WITH KL25Z

arthshah — Mon, 17 Apr 2017 12:39:50 GMT

i want to just know about spi interfacing with kl25z.

anybody have code for this?

given in the ksdk 1.3.0 example code i can't understand it properly.

Re: SPI INTERFACING WITH KL25Z

kerryzhou — Wed, 19 Apr 2017 01:45:06 GMT

HI Arth Shah,

I have wrote a KL25 SPI code based on the register control, after you refer to the KL25 reference manual register description, it will more easy to understand.

Please check my attachment, it include the KL25 SPI master and slave code, and includes both interrupt mode and polling mode.

Wish it helps you!

Have a great day,
Kerry

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Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 06:18:45 GMT

thank you kerry,

i want also file create ,file close in SD card using FAT is this possible ?

Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 06:20:21 GMT

i am using kinetis Design studio.

Do you have any code for KDS?

Re: SPI INTERFACING WITH KL25Z

BlackNight — Wed, 19 Apr 2017 06:24:12 GMT

Hi Arth,

I did something here with FatFS and the FRDM-KL25Z using KDS:

FatFS with Adafruit MicroSD Breakout Board and NXP FRDM-KL25Z | MCU on Eclipse

Code is on GitHub (link at the end of the article).

I hope this helps,

Erich

Re: SPI INTERFACING WITH KL25Z

kerryzhou — Wed, 19 Apr 2017 06:26:56 GMT

Hi Arth Shah,

About the SD FATfs, you can refer to my post:

Porting FatFs file system to KL26 SPI SD card code

Wish it helps you!

Have a great day,
Kerry

Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 06:27:35 GMT

thanks Erich for the reply.

i refer your link.

thank you..!!

Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 06:38:32 GMT

yup..!! kerry,

i already refereed that link but some confusion is there because i am new in KL25Z.

Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 07:08:18 GMT

hii Erich ..!

I think you are create a project using processor expert, when i select component and set them to our requirement, then code is generated automatically?

Re: SPI INTERFACING WITH KL25Z

BlackNight — Wed, 19 Apr 2017 07:18:47 GMT

Hi Arth,

yes, it is a Processor Expert project, the additional components are available from SourceForge, see McuOnEclipse Releases on SourceForge | MCU on Eclipse

Erich

Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 07:38:35 GMT

thank you so much for instant response.

i edit new component from your provided link.

now my question is that from where i start for interfacing SD card to KL25Z because i am totally new in this controller.

any help would be appreciate.

Re: SPI INTERFACING WITH KL25Z

BlackNight — Wed, 19 Apr 2017 07:39:57 GMT

Best if you start with that example project on GitHub.

Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 07:46:51 GMT

Here i attached screen shot of github project file list.

from t hat which file i open?

when i opened any file its show html file.

how can i use your project in my KDS?

thank you in advance.

Re: SPI INTERFACING WITH KL25Z

arthshah — Wed, 19 Apr 2017 07:47:52 GMT

screen shot of github.

Re: SPI INTERFACING WITH KL25Z

arthshah — Fri, 21 Apr 2017 04:47:47 GMT

hi kerry,

have you code for kinetis design studio for SPI interfacing with KL25Z?

Re: SPI INTERFACING WITH KL25Z

kerryzhou — Fri, 21 Apr 2017 05:08:34 GMT

Hi Arth Shah,

No, I don't have KDS project, you can refer to KSDK2.0-FRDM-KL25, there has the KDS project.

Besides, the code which I give already have the CW project, you can create a KDS project and add the cw source code.

Have a great day,
kerry

Re: SPI INTERFACING WITH KL25Z

arthshah — Fri, 21 Apr 2017 05:13:16 GMT

hello kerry,

thanks for the reply.

how to add CW code in KDS?

Re: SPI INTERFACING WITH KL25Z

arthshah — Sat, 22 Apr 2017 06:38:31 GMT

hii kerry,

i tried your code for porting FATFS to KL25 SD card.

but there are some error that i cant solve,i need your help to solve that error.

there are one function call system_init() in main.c.

where is the definition of this function?

Re: SPI INTERFACING WITH KL25Z

kerryzhou — Mon, 24 Apr 2017 03:05:22 GMT

Hi Arth Shah,

That code is the mdk project.

system_init() is:

void System_init(void)
{
   #ifdef CMSIS // If we are conforming to CMSIS, we need to call start here
   start();
#endif
   _UartTXreset();
   _UartRXreset();
}

This function also in the kl26_sdfatfs.c.

If you don't use the CMSIS, you can just add:

_UartTXreset();
_UartRXreset();

This code is not important to the sd spi control.

Have a great day,
Kerry

Re: SPI INTERFACING WITH KL25Z

arthshah — Mon, 24 Apr 2017 09:10:47 GMT

hii kerry,

thanks for the reply.

i found that system init() in kl26fatfs.c.

As you said this code is not important to the Sd Spi control,so please tell me which header file i m use in my project?

In main function system init() is called, so i comment this fun call??