Error in declaring variable for storing at specified address in S32K312

[victory]

Dear NXP,

1.RTD version: 4.0.0, S32DS version: 3.5

2.Add ExchangeInfo to the linker_flash_s32k312.ld, as attached.

3.The variable g_u2CurrBootOrAppMode is declared in main.c at address 0x20417FF0 (ExchangeInfo), but the compiled map file shows that the variable is located at 0x20408004.

Please respond promptly. Thank you!

[Senlent]

Hi@victory

I checked your linker file and actually you didn't configure "SECTIONS" areas for "ExchangeInfo"

I made a quick modification for your reference.

[victory]

Hi,Selent

1.Based on your response, I modified linker_flash_s32k312.ld, and g_u2CurrBootOrAppMode can correctly point to 0x20407FF0.

2.When I assigned the value g_u2CurrBootOrAppMode = 0xAA55, I found that g_u2CurrBootOrAppMode was not set, and the program crashed, as shown in the image below. For detailed code, see the attachment.

[Senlent · Accepted solution]

Hi@victory

I don't quite understand your question, what do you mean that the program is crashed?

It runs fine on my end.