Hello,
USB and say, RS-232/485 are all serial mediums to deliver data. What makes USB so much faster? Why can't the same data transfers rate be achieved with say, RS-232? Sorry for asking a non-Keil specific question.
Thanks
... DMA which will 'help' equally much regardless of USB or 485. Likewise, regardless of DMA or not, buffer size helps equally for the two. In comparison - compare under same circumstances.
Erik
PS In my first post I 'forgot' a thing: RS232 is single ended which is not conductive to long cables or high speed.