Flash application file without Flash Driver via S32k142 UDS Bootloader

[Prasad7]

I am using S32k142 Example code for UDS Bootloader so i am able to flash my application file through UDS Bootloader but before that I need to download Flash driver file in Ram Memory,

My Requirement is i need to download Application file without flash Driver file. So please guide me regarding this which steps i need to modify in S32k142 Example code.

Thank You

[Prasad7]

Hi NXP Team ,

Now my bootloader size become 46kb i want to optimize it up to 32kb is their any provision for it. I am using CANTP of Example code of S42k142 bootloader.

[Senlent]

Hi@Prasad7

I don't quite understand what you are talking about, what is your specific problem?
Without details, I can't give you my advice

[Senlent]

Hi@Prasad7

The flash driver makes some APIs related to operating flash into independent files(.bin or hex,s19 etc), and then writes them to the specified location in the MCU through CAN or LIN.

So you can directly attribute these APIs to the specified RAM address in the BOOT project.

But for the Unified Bootloader we provide, if you modify it, it will be a lot of work, which will also involve the

UDS protocol itself.

[Prasad7]

Please explain below Line in details:

So you can directly attribute these APIs to the specified RAM address in the BOOT project.

[Prasad7]

Can you please provide source code for flash driver so i can test and integrate with my bootloader code

or suggest me any other steps to resolve this issue.

[Senlent]

Hi@Prasad7

In the link document I provided you, there is a method for using the keyword "attribute".

This means that you need to include FLASH APIs in the BOOTLOADER code and use the keyword

"attribute" to assign these APIs to the SRAM address during the compilation process.

[Senlent]

Hi@Prasad7

you can find the source code in the link below.

https://community.nxp.com/t5/S32K-Knowledge-Base/S32K-How-to-make-Flash-Driver-image/ta-p/1630873

[Prasad7]

Please share me the steps with example to generate .s37 file format in S32DS .