Hi Hans! Am Samstag, 11. Mai 2019 02:00:32 UTC+2 schrieb Hans Leeuw:
> I could not find the folder you mention in your post (libpruio/build). > What is the path toward it? > It's recommended that the user creates that folder inside his clone of the GIT repo, and builds the binaries in that subfolder = out-of-source-build -> no polution of the original source tree. When you build in-source instead, you should find the file at libpruio/ install_manifest.txt > It seems that the USB WiFi dongle adapter (micro male to USB A female) > that I use influenced the measurement. Just when I started to test my > theory it broke down completely, so I am not completely sure.... I became > suspicious of it when I was thinking again about the ADC not reaching its > conclusion and your remark about impedance. The adapter became pretty hot. > Much hotter then the one I currently use. So I hope that's it. > Seems to be OK, when you get 12 bit resolution now. >From my point of view there's still an open question: Why do you think you'll need such a big ring buffer? In best case you'll need two samples: one set for the PRU to fetch the data, and a second for the evaluation on the ARM (or second PRU). OK, the ARM may be busy with other tasks, so 4 or 8 samples may be better. Or lets say you use all memory allocated by the uio_pruss driver (16383 samples in your case), to be in a very save area. But increasing the ERam size doesn't make sence. That's only sufficient in MM mode, where all data must get stored in a single block. Regards -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/570a9b03-20e5-4263-ac3a-83884dc8087f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
