On 5/1/2014 7:13 AM, Hannes Hörting wrote: > Hello! > > Guess I passed now some steps: > https://learn.adafruit.com/introduction-to-the-beaglebone-black-device-tree/exporting-and-unexporting-an-overlay > > Great instruction. I install dtc and can compile your files with "sh > make.sh" > > But there is just one problem: > echo cape-universal > /sys/devices/bone_capemgr.*/slots > > I get: > bash: echo: write error: File exists > > Can I add the line(s) manual in the slots? Because when I open the slot: > 0: 54:PF--- > 1: 55:PF--- > 2: 56:PF--- > 3: 57:PF--- > 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G > 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI > > I can add BB-UART1 ... but not cape-universal. > > Any idea how I can add the settings?
You load *JUST* the cape-universal. It provides user-mode selection of pin multiplexing and also loads most useful hardware drivers (like the UARTs). Once loaded, all pins default to inputs with their power-on reset default pull up/down settings. To change the pin functions, use the config-pin utility: config-pin p9.24 uart config-pin p9.25 high Just type config-pin (with no options) to get usage info. You can also provide a file list of pin settings to the program, to setup everything at once. There is even a GUI program to generate the files, but it doesn't (yet) run on the BeagleBone. Get the PC, Mac, or x86 Linux version here: https://github.com/strahlex/BBIOConfig/releases -- Charles Steinkuehler char...@steinkuehler.net -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
