Go to advanced search

by ElectricCrowbar
Wed Aug 30, 2017 7:45 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: CSI breakout and pin reuse
Replies: 4
Views: 1466

Re: CSI breakout and pin reuse

Isn't this the exact reason why the Compute Module was developed, for folks who need more than the 27 GPIOs available on the 40pin header. You should look at whether that better meets your needs rather than hacking supported interfaces for unsupported purposes. If i was making a thousand of somethi...
by ElectricCrowbar
Wed Aug 30, 2017 4:43 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: CSI breakout and pin reuse
Replies: 4
Views: 1466

Re: CSI breakout and pin reuse

Thanks 6by9!

That was very helpful!
by ElectricCrowbar
Wed Aug 30, 2017 5:36 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: CSI breakout and pin reuse
Replies: 4
Views: 1466

CSI breakout and pin reuse

Hey every one, i'm not able to use the 40 pin connector for a project and am trying to squeeze out a few more more GPIO from the unconventional places.The CSI port is pretty convenient for me, and i'm going to order a break out from oshpark. I've gotten conflicting reports about what pins can be reu...
by ElectricCrowbar
Fri Sep 18, 2015 10:18 pm
Forum: Graphics, sound and multimedia
Topic: So what's the state of WebGL?
Replies: 13
Views: 4327

Re: So what's the state of WebGL?

...snip... Its easier to use the readymade images, faster for me at least. The just install chromium, fiddle with the settings a little and it works. I think i'm going to try this before rebuilding the Kernel... and Mesa...and Xorg... Plus my end goal is a Debbootstrap Jessie build I can maintain a...
by ElectricCrowbar
Fri Sep 18, 2015 5:23 am
Forum: Graphics, sound and multimedia
Topic: So what's the state of WebGL?
Replies: 13
Views: 4327

Re: So what's the state of WebGL?

https://github.com/Metrological/buildroot Which builds a buildroot with a really simple webbrowser with WebGL, using their layer between WebGL and OpenGLES. Then, there's Anholt's mesa drivers, which I've installed using the readymade images, and that works as well with WebGL, making a OpenGL drive...
by ElectricCrowbar
Thu Sep 17, 2015 10:56 pm
Forum: Graphics, sound and multimedia
Topic: So what's the state of WebGL?
Replies: 13
Views: 4327

Re: So what's the state of WebGL?

Well yes, I know what it is.

But support on the raspberry Pi has been iffy historically, I see some demos with custom build browsers floating around but very little information on how they got it to work.
by ElectricCrowbar
Thu Sep 17, 2015 10:29 pm
Forum: Graphics, sound and multimedia
Topic: So what's the state of WebGL?
Replies: 13
Views: 4327

So what's the state of WebGL?

I'm fiddling with with Electron (Think of it as Chromium) and i've gotten it working via a new set of arm binaries (on Debian Jessie.) Hardware acceleration even works if you have the userspace gpu drivers installed, but I have no signs of life regarding WebGL. Upon googling there is a lot of confli...
by ElectricCrowbar
Wed Jun 24, 2015 12:54 am
Forum: Raspbian
Topic: Should I be building public packages on a PI1 or PI2?
Replies: 3
Views: 604

Should I be building public packages on a PI1 or PI2?

I'm building an apt repository dedicated to the raspberry pi and i've run into a question of architecture. Because dpkg is reporting the arch as 'armhf' on both the Pi and Pi 2 there is no way to differentiate between packages on each. I know every one is aware of the issue, I've seen a few threads ...
by ElectricCrowbar
Fri Mar 06, 2015 2:06 am
Forum: HATs and other add-ons
Topic: Gert's VGA add-on for the B+
Replies: 240
Views: 118453

Re: Gert's VGA add-on for the B+

Great feed back, I'm updating now. 2: Some screens do not need all four control signals, you might get away with just two or three of them. The Adafruit screens work well without HSync/VSync for instance, giving you access to one of the I²C busses. The one intended for ARM use even. I wasn't sure ho...
by ElectricCrowbar
Wed Mar 04, 2015 11:29 pm
Forum: HATs and other add-ons
Topic: Gert's VGA add-on for the B+
Replies: 240
Views: 118453

Re: Gert's VGA add-on for the B+

Hey guys, I wrote up my experience working with DPI on my blog in the hopes that others will have an easier time than I did. A great deal of the technical information was found here so I credited you all as best as I could. If you feel left out let me know: http://blog.reasonablycorrect.com/raw-dpi-...
by ElectricCrowbar
Sat Feb 21, 2015 9:36 pm
Forum: HATs and other add-ons
Topic: Gert's VGA add-on for the B+
Replies: 240
Views: 118453

Re: Gert's VGA add-on for the B+

I'm having grey issues, unfortunately I don't have a scope but i'm making do with a logic analyzer: http://imgur.com/a/ct9vX As you can see my color lane looks horrific, It should afik be in sync with clock, but it looks like a mess. I'm thinking it may be bread board capacitance related. (Pi cobble...
by ElectricCrowbar
Tue Feb 17, 2015 6:52 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DPI Documentation ?
Replies: 3
Views: 1251

Re: DPI Documentation ?

Saw that thanks for the replies. I've since gotten every thing I need. I'm testing now and writing up my experience.
by ElectricCrowbar
Mon Feb 16, 2015 5:41 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DPI Documentation ?
Replies: 3
Views: 1251

DPI Documentation ?

Hey guys, I'm trying to use a raw TTL display with the raspberry pi but haven't found any documentation on the peripheral, or even to what pins it's broken out. If you haven't seen it adafruit managed it here: https://www.youtube.com/watch?v=DTuvzxkVaKs They built on the VGA666 device tree: https://...

Go to advanced search