S32K358 C++ project based on S32DS3.5

CherryDeng — Sat, 23 Nov 2024 09:21:37 GMT

We use RTD50.0 and want to integrate C++ code into S32DS3.5. Do you have a C++project based on S32K3? Thank you.

Re: S32K358 C++ project based on S32DS3.5

petervlna — Mon, 25 Nov 2024 07:46:50 GMT

Hello,

We do not have C++ based project.

But RTD is written is such way that it should be used with C++ code.

You have to define it in macro __cplusplus.

But I have never tied it.

Best regards,

Peter

Re: S32K358 C++ project based on S32DS3.5

peter_pinewski — Mon, 10 Mar 2025 14:23:42 GMT

Hi @petervlna , @CherryDeng ,

Please see the attached for a simple cpp and S32K358 RTD3.0.0 example. (based on a single core)

Note...in order to use the RTD with a c++ program, a few things need to be considered.

1 - correct include paths in the project which include paths to the RTD
2 - modified linker file to include c++ requirements (i.e crt0.o and constructor definitiions)
3 - modified startup to include both RTD and c++ requirements.

In the attached S32K358 example, the steps to get it working were:

1 - Start with an RTD example.

2 - Convert RTD example to c++ by selecting File/New/Convert to a C/C++ Project

3 - Modify linker file to include c++ requirements. (refer to attached linker file)

4 - Modify RTD startup_cm7.s by changing the Reset_Handler entry name to _start_RTD (needed to avoid redundant definitioin of _start from RTD and C++)

5. Change the bl main to bl _start to jump to the c++ _start files. (this is defined incrt0.o)

The attached project is a very simple PIT interrupt example but may be a good place to start.

Regards,

Peter

topic Re: S32K358 C++ project based on S32DS3.5 in S32K

S32K358 C++ project based on S32DS3.5

Re: S32K358 C++ project based on S32DS3.5

Re: S32K358 C++ project based on S32DS3.5