Is there any working example of a timer triggering ADC conversion in interrupt mode ?

I have been trying to get a timer to trigger adc conversion automatically and invoke my ADC IRQ handlers. But no luck so far. Unless i actually trigger the ADC conversion in timer IRQ, it does work. But that defeats the purpose of TRGO trigger all together.

Is there a Cube ide example of ADC conversion triggered from timer IRQ ?

I just need a project that invokes irq handler where it breaks. I simply fail to get the config to trigger the adc irq despite every period calling timer irq.