Issue while debugging

[Luca Gradassi]

Hello,

I'm using Segger ES 4.52 and I'm having some issues while doing step by step debugging.

It tells me that some symbols are not defined, even if they actually are (see the picture attached, on the top right).

Any idea of what the problem may be ?

[awneil]

Luca Gradassi said:

Any idea of what the problem may be

Optimisation (or Optimization).

Although this article focuses on GCC, this is a general thing with compiled languages: not just 'C', and not specific to Nordic or SES or GCC:

https://www.avrfreaks.net/forum/tutcoptimization-and-importance-volatile-gcc