Using the DMABurst feature to generate an abitrary waveform

[Bertl]

Hello forum!

I'm struggling to enable the burst feature described in the applicationnote from stm.

I'm using cube IDE and I configured timer1 along with DMA1 to generate a specific waveform.

Problem is, that after enabling the PWM via "HAL_TIM_PWM_START_DMA()",

the call to HAL_TIM_DMAburst_Multiwrite() failes with HAL_BUSY.

The initial values are set but the update does not work. Are there any experiences to use 

this feature using cubeIDE (Cubemx)?

[Sarra.S · Accepted solution]

Hello @Bertl, welcome to ST Community, sorry for the delayed answer!

Could you specify what stm32 are you using?

You can start from the existent cube example of TIM_DMABurst here.

[Bertl]

Hi, thanks for the answer!

Meanwhile, I managed to get it work :)