S32K358 C++ project based on S32DS3.5

[CherryDeng]

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

[petervlna]

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

[peter_pinewski]

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