STM32 timer interrupts with IAR Embedded Workbench

Question

I want to toggle an output pin on a nucleos f103rb board with an timer interrupt. The problem is that the interrupt routine doesn't exist in the memory, because it isn't called at any time! Can somebody send an example for iar workbench what it has to look like?
I doesn't use any libs eccept the "ST\iostm32f10xxB.h".
Thank you very much.

Answer 1

why do you use IDE Keil ? I use Cube MX + Keil.

Answer 2

I only use IAR Embedded Workbench, because I dislike Hal and MXCube. Most times nothing works