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How the BBB and RPi differ (a list subject to change/correction): 1) With the RPi the RAM is soldered on top of the CPU, a very critical technology only a few shops can offer. 2) The ARM1176JZF-S (RPi) is vfpv2 which supports floating point exceptions whereas the Am335x chip (BeagleBone) is vfpv3 and does not provide such support. 3) The RPi boots up via the VideoCore GPU whereas the BBB boots up normal. This is one reason my linux-cnc friend (see below) gave up on using the RPi for his real-time stuff. An engineer I know tried to use the RPi for linux-cnc but gave up and used the BB Black (if I remember correctly the main problem was the RPi booting up via the VideoCore GPU): http://blog.machinekit.io/ There are a few links for the RPi, BB, and Arduino near the top of this page: http://www.turbocontrol.com/monitor.htm Thanks, Paul __._,_.___ Posted by: __,_._,___ |