[beagleboard] Beaglebone black LEDS not flashing

2016-06-13 Thread cmajor . merchant
I have built the 4.1.24-bone-rt-r21 kernel and loaded it onto an sd card which I am booting from on the beaglebone black. However, when it boots, the LEDs do not flash. Any ideas why this might be? The LEDS flash if I use the 3.8.13 kernel so it is not a hardware issue. I also don't see any boot

[beagleboard] BeagleBoneBlack SD card boot

2016-06-11 Thread cmajor . merchant
I want to boot from the sd card on the beaglebone black without having to press any button. In order to do this I think I can use the uboot env on the internal flash. Is this correct? And if so, how do I configure the sd card to be bootable? -- For more options, visit http://beagleboard.org/di

[beagleboard] Using GPMC to interface with FPGA (SRAM interface)

2016-05-31 Thread cmajor . merchant
I wan't to use the GPMC interface on the BeagleBone back to interface with a FPGA exposed as SRAM. The FPGA is being used as an audio codec and I wan't to use DMA transfers to take data from the FPGA and put it into main memory. I'm not necessarily asking about the DMA stuff (though I wouldn't

[beagleboard] BBB Linux RT patch

2016-05-22 Thread cmajor . merchant
I'm having an issue building modules using the rt linux patch. When I try to build it, it says it can't find some of the headers files for the patch (i.e. rtl.h). And when I look for the header files, they don't exists. I was using this link to g

[beagleboard] Debugging with beaglebone black

2016-03-19 Thread cmajor . merchant
I have a question about the beaglebone black. How am suppose to debug with it? I really would prefer not to have to solder a JTAG header. Also the JTAG header would be under the board which is really inconvenient. The case that came with my board also has no room for the JTAG header so it would