SPI INTERFACING WITH KL25Z

[arthshah]

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.

[kerryzhou]

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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[arthshah]

i am using kinetis Design studio.

Do you have any code for KDS?

[BlackNight]

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

[arthshah]

thanks Erich for the reply.

i refer your link.

thank you..!!

[arthshah]

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? 

[BlackNight]

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

[arthshah]

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.

[BlackNight]

Best if you start with that example project on GitHub.

[arthshah]

screen shot of github.

[arthshah]

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.

[arthshah]

thank you kerry,

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

[kerryzhou]

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

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[arthshah]

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?

[kerryzhou · Accepted solution]

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

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[arthshah]

hii kerry,

according to your provided link i have some confusion regarding header file.

header file's name kl26_sdfatfs.h there are some more header file is defined,

//#include "start.h"

//#include "sysinit.h"
//#include "hal_i2c.h"
//#include "pit.h"
//#include "ftfa.h"
//#include "pmc.h"

these files are important in SD FATFS project?

currently i comments this files then build again there is no errors right now.

but one more question is there In common.h header file i am getting error like "No valid platform defined". 

[kerryzhou]

Hi Arth Shah,

    I am a little overloaded now.

    When I have time, I will help you to create the KDS project, then reply you in your new post.

  Please wait patiently now.

#include "start.h", this is the head file for start.c, used for the mcu start configuration. If you already add the according code, just comment it.

/#include "sysinit.h", this is the head file for sysinit.c, used for the mcu initialization. if you already add the according code, comment it.
//#include "hal_i2c.h", you don't need to care about it, just comment it.
//#include "pit.h", comment it, no use for SD card.
//#include "ftfa.h", flash head file, no use for SD card, comment.
//#include "pmc.h", no use for SD card, comment it.

Actually, you can refer to the CW project, if the CW project include it, you can add it, otherwise, just comment it.

Have a great day,
Kerry

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[arthshah]

thank you kerry,

no problem ..!!

whenever you free reply to my new post.

thanks once again for the help..

[kerryzhou]

Hello Arth Shah,

   Check your another post, I already reply you in that post.

SD card interfacing with KL25Z 

  You can use my attached KDS project.

Wish it helps you!

Have a great day,
Kerry

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[arthshah]

hii

i have other problem in common.h file, in this header file there is a include of platform specific header file, i dont have specific header file.. i add freedom.h but stil i get an error "No valid platform defined"

what should i do?

[arthshah]

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??