SES optimize for size nrf_dfu_flash.c abnormal operation

[Ian]

Hi

  

   I use NRF51822_XXAC + s130_nrf51_2.0.0_softdevice + nRF5_SDK_12.3.0_d7731ad, IDE is segger embedded studio 3.40,  my program works well when i set optimize level to DEBUG level, but when i set optimize level to optimize for size,  function nrf_dfu_flash_erase never return, the program is blocked and only interrupts can work. Then i set optimize level of  nrf_dfu_flash.c file to Debug(all other files in the project is also optimize for size), the program works again.

  I want to know that if nordic's SDK code  is not rigorous, and using higher-level optimizations can lead to problems, or maybe I'm using it incorrectly?

[Edvin]

Hello,

The 12.3.0 SDK did not come with SES project files, so there might be something with the project setup. Have you followed this guide?

 

Do you use the correct flash_placement.xml, thumb_crt0.s and ses_nrf51_startup.s files?

 

Best regards,

Edvin

[Ian]

Yes, of course I followed the guide,and my program always works well as long as it doesn't work at the ‘optimize for size' optimize level. So I'm sure I used the correct flash_placement.xml, thumb_crt0.s and ses_nrf51_startup.s files.If necessary, I can upload these files, including the map file.

[Edvin]

Can you please send the zipped project folder, so I can try to reproduce this issue?

 

Best regards,

Edvin