TIM PWM CCR DMA get Transfer error

[JCuna.1]

I am trying to use dma with timer 2 in order to change the dutty cycle of a pwm output in each cycle. However, I get a dma transfer error.

 

[TDK]

Mystery chip?

Is DMA initialized before ADC?

Is buffer memory accessible to DMA?

Maybe this:

https://community.st.com/s/article/FAQ-DMA-is-not-working-on-STM32H7-devices

[waclawek.jan]

Which STM32?

Read out and check/post content of TIM and relevant DMA registers.

JW

[JCuna.1 · Accepted solution]

I could solve. I have not referencing correctly the pointer of ccr1

(uint32_t)&_RGB_LED_PWM_TIM_HANLDER->CCR1