Hi sorry for the lack of reply. Yes this is what I found also. However I know when I want to stop sending as I am sending packets of data. So when I need the data to end I set the last part of the data to 0 which will cause the rmt to stop sending when it hits the blank space. This actually ended up...

I have a slightly different behavior in RMT_MEM_TX_WRAP_EN mode. TX_END_INT interrupt is fired when I set to 0 value of any RMT channel memory item yet to be sent. And after that transmission is terminated. While TX_THR_EVENTs are just activated every configured number of sent items. At the end of ...

Is the looparound or continuous sending mode enabled?
I found that if you have the RMT_REG_TX_CONTI_MODE bit enabled that it would start sending even if RMT_TX_START_CHn was not.
Maybe you need to disable that as well?

Hi, I was going to ask the same question as I am also a bit confused about the functionality of the loop around mode. As far as I can tell from reading the data sheet and playing around; the RMT_MEM_TX_WRAP_EN applies to all channels and loop around occurs at the end of transmission, i.e when any of...