On Wed, Jul 15, 2015 at 7:32 PM, Bruce Boyes <[email protected]> wrote: > I finally got BBB and LCD7 running with the radiumboard HD Camera Cape, > using the Angstrom image on the camera CDROM, BB-BONE-CAM-VVDN_CR4.img > > Also I read the LCD7 reference manual and looked here > http://elinux.org/CircuitCo:BeagleBone_LCD7 > > radium boards provides a source folder on CDROM but it is an entire Linux > 3.8.13 kernel with no documents... I just would like the camera support > files. > > The Angstrom image and the Cheese camera app (why is it called Cheese? "say > cheese" before you take a photo?) has several bugs: trying to take a video > locks up Cheese.
It's been called Cheese since 2007 GSOC: https://wiki.gnome.org/Apps/Cheese > I can't run the screen calibration again. It starts to load then nothing. > > The touchscreen (used with stylus) is so jittery it's almost useless. > > If I try to set the time with the clock widget it crashes. > > Is there any support for using the camera in Ubuntu or in any way other than > with Cheese? Not that I can find unless I want to write all my own support > from scratch. Section 2.9 of the camera reference manual has this: > Software/Hardware Interface/Ports Software Interface: SW interface is via > Linux-V4L2 layer. Cape board driver is compactable to V4l2 > That's it. One sentence. Nothing else about a provided driver or how to use > the camera with my own application. Nothing about even where to start with > some sample camera driver code. I am trying to contact radiumboards about > this: there is no support forum at their web site. > > LCD7 appears also to have only support on Angstrom? Exactly which lcd is this? dmesg | grep cape > > If I try to run Ubuntu (from eMMC, instead of the uSD card needed for > Angstrom with LCD7 and camera) now all I get is errors in the serial > monitor: > U-Boot SPL 2015.07-rc3-00001-g2c9c20a (Jun 30 2015 - 09:02:07) > spl_register_fat_device: fat register err - -1 spl_register_fat_device: fat > register err - -1 spl_load_image_fat: error reading image u-boot.img, err - > -1 spl: ext4fs_open failed spl: ext4fs_open failed spl_load_image_ext: error > reading image uImage, err - -1 spl: ext4fs_open failed spl_load_image_ext: > error reading image u-boot.img, err - -1 spl: mmc: no boot mode left to try > ### ERROR ### Please RESET the board ### Early lcd7's shared a few lines on the eMMC.... > resetting the board just gets the same thing. So booting from the uSD has > apparently killed the Ubuntu eMMC image, or at least some of its files? > > I'm googling around and found this: > https://groups.google.com/forum/#!topic/beagleboard/xyT84cDwEsQ where the > author spent 10 hours figuring out how to get LCD7 to work with Ubuntu. I'll > try this next. There seems not to be any LCD7-specific support channel. > > My hope was to be able to use LCD7 as a local screen and write a simple GUI > with some custom buttons to start and stop some attached equipment, read I2C > sensors, etc. I don't want a whole desktop GUI and the overhead of that. I > was hoping to write a Python app to build some screens (I think there are > some python UI toolkits out there) and expecting the LCD7 and camera would > have something like a driver template which I could use as a starting point. > But so far I don't see anything like that. > > Am I looking in the wrong place? Wishing for something not there? Are LCD7 > and the HD camera cape meant to be just demo items not intended for use in > my own applications? Should I be asking these questions elsewhere? BB-BONE-LCD7-01-00A3 is working with v4.1.x Regards, -- Robert Nelson https://rcn-ee.com/ -- 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]. For more options, visit https://groups.google.com/d/optout.
