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2x DMA vs. 1x DMA

Question asked by obid.matic on Oct 2, 2015
Latest reply on Oct 7, 2015 by peacock.jack.003
Some of the MCUs have 2 DMAs (12 channels), while others have 1 DMA (7 channels). What are benefits of 2 DMAs, except number of channels? Do DMA1 and DMA2 (in case of two DMAs) share the same bus, or do they have separate buses?

I'm asking for STM32F3 Series.