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Special Guest:Jason Kridner - BeagleBone & PRU - TechTalk #038


#1

In this episode Special Guest Jason Kridner Co-founder of the BeagleBoard.org Foundation joins us to talk about the Beaglebone and its PRUs (Programmable Real-Time Units)


#2

PRU Demo:


#3

A little echoie, but informative. So a PRU is like a PCI Express card: It has its own independent 32 Bit RISC processor and shared IO with Direct main Memory Access.


#4

@ Mr. John Smith - the main microphone broke down so we had to use the audio from the camera directly. We will be having backups going forward so this would not happen again.


#5

I love my Zoom H1:

https://www.amazon.com/dp/B003QKBVYK/?qid=1498243981


#6

Very interesting, I’ll have to hear the video some more times to really understand all functions you mentioned.
I have the GHI OSD3358 BeagleBone TH Module and suppose that I can use the PRU functions on this board as well, is this rigth? Are the eventually needed pins exposed?


#7

@ RoSchmi - yes you can


#8

I have asked this question before but can the PRU also be used to create a smart low-power mode, as it might shut down the core processor and look at some pins and check some timing?


#9

shutting down the system completely will wipe out the DDR content so a reset is required. Any system with DDR must continuously refresh memory. I am guessing, no you can’t do that.