Remora DMA Code in other Builds?

@scotta

Does Remora DMA code exist in other builds other than EC500 specific version OS5/OS6 ?

If not what are your thoughts on what would need to be done for porting the EC500 code to an F4 series target?

Thanks
Adam

I'm running Flexi-HAL and it doesn't support DMA and wanted to know what the best route to take to get there. I need 250KHz for my CNC. It uses a STM32F446RE.

I'm not a developer, but I'd say to use the code for the stm32f4x and use some AI magic to make a DMA stepgen.

I did have a version for the F4 in development, but it turned out the F4's are not fast enough to do the step calculations to fill the DMA buffer. The STMs don't have a GPIO toggle bit like the RT1052 so the full step pattern had to be filled into the buffer, not just the rising and falling edges.

@scotta Following chatgpt it could work by only do ARR/CCR-updates via DMA-burst and the rest with timers. Does that make sense?