Mother

mixed C & Assembly BARE METAL Runtime System for the BeagleboneBlack

General Purpose I/O control, interrupt driven
UART external communication, interrupt driven
MultiMediaCard/SDcard disk storage
I2C bus communication
Pulse Width Modulation control
Real Time Clock, interrupt driven

Use this main program and Assembly drivers as a skeleton for your application 
and strip out/add on whatever you need, freely, without restriction.  

Makefile & loadscript provided for GCC in Win32 (gasp! it is all i have).  
I use the XDS100V2 jtag to load programs.  It is more work up front, but 
easier if you decide to get serious.  

It is all there in very concise format, so it should be easy for noobs 
to understand/test/hack/mod for your next BBB bare metal project requiring
a stand-alone control system.  And it is interrupt-ready! (somewhat)

You can provide feedback at www.baremetal.tech  

TODO List for the adventurous:
UART interrupt echoing
implement IRQ read/write to MMC & I2C
implement a full FAT32 filesystem
bump up the mmc clock
bump up sysclk to 1GHz (currently 40Mhz)
ethernet
usb
dma
GNU libc port