Search found 32 matches

by Brutus
Sun May 05, 2019 11:57 am
Forum: General
Topic: Delays and thermal management
Replies: 19
Views: 3761

Re: Delays and thermal management

Ultibo wrote:which essentially means that you cannot have both PlatformARMv7 and PlatformARMv8 anywhere in the same project.


That was the issue, another housekeeping session was required...

Thanks for putting me on the right track! :)
by Brutus
Sun May 05, 2019 4:23 am
Forum: General
Topic: Delays and thermal management
Replies: 19
Views: 3761

Re: Delays and thermal management

Hi, I finally found time to give a go to the timers on other cores than core 0, but I couldn't go far because I got a link error (see end of this post). For ease, I post here Garry's suggestion I followed: Here's some simple modifications to the DedicatedCPU example to setup a generic timer interrup...
by Brutus
Fri May 03, 2019 2:15 pm
Forum: Projects
Topic: Datalogger Ultibo/ATmega328p
Replies: 13
Views: 2603

Re: Datalogger Ultibo/ATmega328p

A simple correction: PageTableGetEntry needs an integer, not a pointer, so addr:=cardinal(@test); entry:=PageTableGetEntry(addr); Thanks again, I will try this when time permits. I want to keep passive cooling at all cost A thing like this will do :) https://www.raspberrypi.org/forums/viewtopic.php...
by Brutus
Fri May 03, 2019 12:15 pm
Forum: Projects
Topic: Datalogger Ultibo/ATmega328p
Replies: 13
Views: 2603

Re: Datalogger Ultibo/ATmega328p

does the GPU updates them from memory whatever there was a change on the layer or not? Yes, it does. It reads all layers memory in the real time, so 6 fullHD (1920x1200) layers on overclocked (1400/560/560) RPi3 makes it unusable (my experimental result) due to memory bandwidth used by GPU Thanks, ...
by Brutus
Fri May 03, 2019 6:27 am
Forum: Projects
Topic: Datalogger Ultibo/ATmega328p
Replies: 13
Views: 2603

Re: Datalogger Ultibo/ATmega328p

Yep screenshot has been done, Ron was the first to do it very early? https://ultibo.org/forum/viewtopic.php?f=15&t=534&hilit=screenshot+fc+image I used FPimage to take that screenshot saved to ram drive and converted it to a png before saving to SD. Garry pointed out the trick to get the Op...
by Brutus
Fri May 03, 2019 6:12 am
Forum: Projects
Topic: Datalogger Ultibo/ATmega328p
Replies: 13
Views: 2603

Re: Datalogger Ultibo/ATmega328p

A lot of very interesting ideas, thank you. The memory subsystem is a main bottleneck for RPi. You can overclock it in config.txt up to 600 MHz giving it up to 1.2 G transfers/sec. I'll give it a go just for fun and see where the processor temperature goes... The same memory is used by GPU and its a...
by Brutus
Tue Apr 30, 2019 6:47 am
Forum: Projects
Topic: Datalogger Ultibo/ATmega328p
Replies: 13
Views: 2603

Re: Datalogger Ultibo/ATmega328p

From what we can figure it is the EGL layer that has some code that locks it to the thread it was initialized by, so in theory you could start OpenVG on any CPU as long as it remains on the same thread during use. It's not uncommon for graphics code to be only suitable for running on one CPU (or on...
by Brutus
Mon Apr 29, 2019 5:06 pm
Forum: Projects
Topic: Neural Networks
Replies: 6
Views: 2084

Re: Neural Networks

I read a lot of posts from Gavin and always like them.

He's the R&D manager in the Ultibo business. :D
by Brutus
Mon Apr 29, 2019 4:45 pm
Forum: Projects
Topic: Datalogger Ultibo/ATmega328p
Replies: 13
Views: 2603

Datalogger Ultibo/ATmega328p

Hi guys, Long time no posting because I've been very busy on my project. I've been reading the forum every so often and it is already a great knowledge base you have there. The datalogger project I'm working on originally targeted being able being able to datalog up to 5 analog sensors at millisecon...
by Brutus
Tue Apr 23, 2019 9:49 am
Forum: Graphics
Topic: Ultibo game programming
Replies: 75
Views: 19358

Re: Ultibo game programming

This could be great, Gawin.

I'm not a gamer myself (I enjoy programming much more), but I always thought the RPi could do a very good cheap game console.
This is already the case with retrogaming, but emulation and native games are two different worlds...

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