Interrupt affinity Individual IRQs can be assigned to individual processors to handle it. Interrupts are generally shared evenly between CPUs which means delays while writing new data and instruction caches and conflicts with other running processes. Time critical IRQs should be dedicated to a CPU. cat /proc/interrupts Show which CPUs all IRQs [...]
Applications You will need a gdb client running on the host and a gdb server running on the target from your cross compilation toolkit. On the target: arch-gdbserver local_ip:local_port my_app my_args gdbserver can also attach to a running process with the –attach parameter. On the host: arch-gdb –symbols=my_apptarget extended-remote target_ip:remote_portCtrl-Cbt Graphical GDB DDD and Insight [...]
When I walk into my car with my mobile, and I have a data connection to the Internet available, as well as bluetooth connectivity, it would be nice if my car’s onboard computer would use it. What do we get if we connect the onboard computer in the car with the outside world? – It [...]
The three most popular open source libraries are expat, libxml and xerces. The first two are C libraries, while Xerces is a C++ library. Both expat and libxml can reportedly be used in embedded devices, while Xerves is probably too large for most. Expat is the most lightweight, and it is request driven. It has [...]
Web servers in embedded devices have become standard to manage, control and configure them. Configuration, management and control, once implemented through a web server, can easily be made available as a web services API that will allow the integration of your embedded device in a network and the communication with other devices. Embedded web servers [...]
The company I work for produces a distributed targeting advertising system which includes embedded video splicers, a Traffic Management System, and a Marker Insertion System. They all communicate using a REST like XML + HTTP interface, loosely a web service. Documenting this API using a web services interface description language seemed like a good idea. [...]
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