[beagleboard] Semi fast ADC w/ timestamp at 200-400SPS

2018-08-31 Thread tremmert
Hello, I am interested in using the BBB to monitor a sensor (geophone) at about 200-400sps. I am currently using the Adafruit_BBIO.ADC library to do this in Python. Ultimately, there are two goals for this project, and I would love some input on how to approach this. 1) Time stamp when the

Re: [beagleboard] BeagleBone Black GPS PPS and Chrony for time sync

2018-08-30 Thread tremmert
First off, Thanks Robert for all your help. Looks like we are up and running! Next, I wanted to post a few notes in case others run into the issues that I had. 1) From a clean install, apt-get update then apt-get upgrade 2) git clone https://github.com/beagleboard/bb.org-overlays.git 3) cd

Re: [beagleboard] BeagleBone Black GPS PPS and Chrony for time sync

2018-08-28 Thread tremmert
Hi Robert, So I was able to get the file compiled. Basically, I pulled down your bb.org-overlays project from github, then added my custom dbs file to the /src/arm directory and finally ran ./install.sh This seemed to compile and install the new dtbo in the /lib/firmware directory. Next, I

Re: [beagleboard] BeagleBone Black GPS PPS and Chrony for time sync

2018-08-23 Thread tremmert
Robert, Thank you for the fast reply. So I assume that I need to edit your lines: P2_01_pinmux { status = "disabled"; }; /* gpio1_18 - EXTINT */ P2_03_pinmux { status = "disabled"; }; /* gpio0_23 - PULSE */ P2_05_pinmux { status = "disabled"; }; /* gpio0_30 - TXD */ P2_07_pinmux { status =

[beagleboard] BeagleBone Black GPS PPS and Chrony for time sync

2018-08-23 Thread tremmert
Hello, My goal is to make an ultra-precise clock on the beaglebone black by using the 1 pps signal from my adafruit GPS. I have been readying about the device overlays / capes but there seems to be a lot of outdated information out there that is very confusing. My 1 pps is connected to