I recently stumbled across mention of the 1.8 inch color SPI display that adafruit sells https://www.adafruit.com/products/358 working with the bone and code commits for the bone kernel for driving it. How can this be wired to the beagle and what code needs loaded to make it work at least as console if not as a full graphincs display?
Thanks,
Eric
There is a a driver that is work in progress by Matt Porter (https://
github.com/ohporter/linux-am33x/tree/st7735fb). In one of the commits
you will find the pin assignments.
However, you should probably wait until the tree has been rebased to a
more recent version. Further more Matt said he was going to work on
the driver in the next couple of weeks because the driver is currently
not functional due to some DMA issues.
/Matthias
Refer to the schematic and the SRM. Look at the signals that are connected to the expansion header. Then wire those signals needed by the display to the expansion headers.
Gerald
should the bone recognize the display at that point and begin using it? connecting to spi is pretty easy, what needs done on the software side?
Eric
You should also take a look at the talk Matt Porter gave last week at
the Embedded Linux Conference. You can definitely get his slides, and
there should be a video up by now as well.
Cheers,
Greg
You should also take a look at the talk Matt Porter gave last week at
the Embedded Linux Conference. You can definitely get his slides, and
there should be a video up by now as well.
http://video.linux.com/videos/spi-framebuffer-driver
Thanks,
Vaibhav
Free electrons also has a video, with audio this time: http://free-electrons.com/blog/elc-2012-videos/
the video is a really great low level discription of how this was made
to work in the proper way. that said has much happened since then....
might there be a kind of howto such that one can attach this display
to spi on the bone and use it as a proper display? a working cape
with this display would rock!
Eric