On 01/11/2013 10:49 PM, Eric H. Johnson wrote: > > The board in fact just arrived today. Android built into the onboard NAND > booted first time. While waiting for the board to arrive, I also built a > custom kernel and a debian image and loaded that to a 4GB SD card. That, > unfortunately was an abject failure. It would not boot, and worse, gave no > error message. I just got a black screen. > > Does it have a serial port? That is the best way to debug boot failure on the Beagle Board and its cousins. 4GB is a bit tight for the full Linux system, but it can work. But, for real work on the system itself, you might want to go for an 8 GB card.
As for attaching hardware, I built a board that puts a bidir parallel port on the Beagle Board's expansion header. It doesn't do native EPP mode, but that can be emulated in software. I have a rudimentary driver for my EPP-connected stepper/PWM controller that ran on the Beagle Board. (The SD card got corrupted, but I think I have the code backed up.) If the olinuxino also has an expansion header for GPIO pins, I could give you the schematic. The Beagle Board and XM have 1.8 V I/O levels, so it includes a level translator. Jon ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
