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In this guide we will be controlling a tower pro sg90 servo motor using software pwm module.     Step1: export ARCH & CROSS_COMPILE to environment path.   in my case its like below, yours might be different. $ export ARCH=arm $ export CROSS_COMPILE=<PATH_TO_TOOLCHAIN>/fsl-linaro-toolchain/bin/arm-fsl-linux-gnueabi-   Step2: create a directory mkdir driver   create a file named "Makefile"  and replace with your KDIR value, below is mine. obj-m : ...
This post describes a procedure to generate a Linux SD card image for RIoTboard using Yocto on an openSUSE 13.2 x86_64 host.  This procedure is just a clone of the excellent procedure documented by Bryan Hinton (referred to below as B.H. for brevity) with a handful of alterations to accommodate a different host OS, more modest host hardware, minor changes in the resulting Yocto build and one or two issues peculiar to my combination of hardware and software.  Bryan's document enumerates ...
Erich Styger provided an excellent description of how to connect the FTDI-based Embest  UART8000-U USB-to-TTL cable to the J18 interface on the RIoTboard in order to create a system console on a Windows host in the following post   http://mcuoneclipse.com/2014/07/21/terminal-connection-to-the-riot-board/   This post will describe how to connect a Prolific-based JBtek/Adafruit USB-to-TTL cable to the RIoTboard J18 interface in order to create a system console on a Windows host i ...