topic S32K342 IAR startup code problem in S32K

S32K342 IAR startup code problem

fan1234 — Thu, 09 Jan 2025 03:33:28 GMT

export the project from SDK to IAR and compile, IAR will report Error[Lp004]: actual size (0x448) exceeds maximum size (0x410) for block "interrupt_vector_init".

I tried to change the maximum size to the actual size, and build succeeded. But, after i download the file into the board, it's going to HardFault handler without going to main function.

using SW32K3_S32M27x_RTD_R21-11_5.0.0_D2410 and IAR VERSION 9.32.1

Re: S32K342 IAR startup code problem

jiri_kral — Tue, 11 Feb 2025 15:07:10 GMT

Hi,

sorry for delay. It looks that you are using wrong linker script file (.icf) - probably for S32K1xx instead of S32K342

Re: S32K342 IAR startup code problem

fan1234 — Fri, 14 Feb 2025 02:10:56 GMT

thank you for your reply. the icf file is correct. i have solved the problem, IAR has it's default startup file which define the entry and vector table, so i need to change them in IAR.

BR!

Re: S32K342 IAR startup code problem

ben_chin — Tue, 26 Aug 2025 02:06:53 GMT

Hello Fan，

I met the same problem. Would you please tell me how to solve this problem.

MCU: S32K312

RTD 6.0.0

Thanks!

Re: S32K342 IAR startup code problem

fan1234 — Thu, 04 Sep 2025 02:26:14 GMT

sorry for delay. it's been a long time, and i can't provide you too many details now. my advice is to check the differences between the iar and s32ds startup files, and you may find the names of program entry and vector table are different.
I assume that you have used the startup file provided by s32ds, then you need to change the program entry and vector table definition of you iar project.
hope that‘s helpful.