About bootloader for S32K144

[bryan_hong]

Hi 

I have read `https://community.nxp.com/t5/S32K/s32k144-bootloader/m-p/710419#M1501` - this is for MPC5748G

1. Is it supported bootlader on s32k144 ?

  As I understand, yes, s32k144 support bootloader.

2. how to replace bootloader on s32k144

3. Is it possible bootloader update thur I2C ?

please share the any documents for bootloader about s32k144,  and s32k144 bootloader demo example.

thanks

Bryan

[bryan_hong]

@danielmartynek thanks for your update!!!

We do not have such bootloader for I2C but you can develop your own.

--> Can I ask a question if there is an issue for this(bootloader for I2C) ?
--> Are there any related URL or documents or example source code that I can refer to ?

[danielmartynek]

Hi @bryan_hong,

There is no problem in using the LPI2C for a bootloader, but we don't have any for the S32K1xx series.

There is one for the Kinetis L Series:

https://www.nxp.com/docs/en/application-note/AN4655.pdf

You can refer to the source I linked in this thread and replace, for example, UART with I2C.

Best regards,

Daniel

[bryan_hong]

I have a question.

I have completed `build all` on S32 design studio for ARM. and I want to flash `S32K144_LIN_bootloader.elf`

so I want `S32K144_LIN_bootloader` to run when the S32K144EVB board powers on.

thanks

Bryan

[bryan_hong]

@danielmartynek  @ramprakash08 thanks for your answer, it so delay for long time because I had a headache.

[danielmartynek · Accepted solution]

Hi @bryan_hong,

There is no I2C bootloader for S32K.

You can refer to

1. AN12323 S32K1xx Firmware updates

https://www.nxp.com/docs/en/application-note/AN12323.pdf

https://www.nxp.com/docs/en/application-note-software/AN12323SW.zip

2. AN12218 S32K1xx Bootloader

https://www.nxp.com/docs/en/application-note/AN12218.pdf

https://www.nxp.com/docs/en/application-note-software/AN12218SW.zip

3. Unified bootloader Demo

https://community.nxp.com/t5/S32K-Knowledge-Base/Unified-bootloader-Demo/ta-p/1423099

Regards,

Daniel

[ramprakash08]

Hi Bryan, Yes, you are correct. The S32K144 does support a bootloader. The bootloader is a small program that gets executed whenever the device is powered up or reset. It is responsible for loading the main application software into memory and then transferring control to it.

To replace the bootloader on the S32K144, you would typically use a JTAG or SWD programmer/debugger. The exact steps can vary depending on the specific programmer/debugger you are using. However, the general process is to first erase the existing bootloader from the device's memory, then program the new bootloader into the appropriate memory location.

As for updating the bootloader through I2C, it is technically possible, but it would require a custom bootloader that supports I2C communication. The standard bootloader provided by NXP for the S32K144 does not support this feature. If you need to update the bootloader over I2C, you would need to develop a custom bootloader that includes this functionality.

Hope this helps! 

[bryan_hong]

Hi @ramprakash08 

If you need to update the bootloader over I2C, you would need to develop a custom bootloader that includes this functionality.

--> try to check again officially !!!, Can this be developed on SK32K144 ?

[danielmartynek]

The post above from the gmail account ramprakash08 looks like text generated by AI.

Please follow my previous post. We do not have such bootloader for I2C but you can develop your own.

Regards,

Daniel

[bryan_hong]

hi @danielmartynek 

thanks for your updates