In code generated ,memory section start is missing for Global variables section

The code generated doesn't have memory start section ,but only stop section for Global variables.Why it happens?

The code generated looks like:

My Global Variables

#define Sample_STOP_SEC_VAR

#include "Sample_MemMap.h"

Answer 1

[Shubham]

Hi Annu,

When dealing with Simulink and code generation, particularly in the context of embedded systems, the memory section definitions are often managed through the use of memory mapping files. These are crucial in organizing how and where data is stored in memory, which is particularly important for embedded applications with specific memory layout requirements.Reasons for Missing START Section in Simulink Code Generation

1. Simulink uses memory section definitions to control where generated code places variables. If the START section is missing, it might be due to misconfiguration in the memory mapping setup.
2. Ensure that the configuration parameters in your Simulink model are set correctly. The absence of a START section might be due to how memory sections are defined in the configuration.
3. Simulink uses template files for code generation. If these templates are not set up correctly to include both START and STOP sections, you might encounter this issue.
4. Check if there are any conditional compilation directives in your memory map file (Sample_MemMap.h) that might prevent the START section from being included.

Steps to Address the Issue

1. Check Configuration Parameters:

• Open your Simulink model.
• Go to Model Configuration Parameters.
• Check under Code Generation > Memory Sections to ensure that memory sections are defined correctly.

2. Review Memory Map File:

• Open the Sample_MemMap.h file.
• Ensure that both START and STOP sections are defined.
• Look for conditional compilation directives that might be excluding the START section.

3. Review and Edit Template Files:

• If you are using custom templates for code generation, ensure they are correctly set up to include both START and STOP sections.
• Check any .tlc files if you are using Target Language Compiler (TLC) scripts for custom code generation.

4. Regenerate Code:

• After making any changes, regenerate the code to see if the START section is included.