Real Time Developer Studio user's manual
Contents
1. Success story NewLogic leading WiFi protocol stack developed in SDL RT with RTDS This is the transcript of an interview of Guilhem Roques 820 11 software engineer done in June 2004 In December 2005 Wipro acquired European System on Chip SoC design firm NewLogic The company NewLogic is an Austrian company that has several R amp D centers in Europe Our business is to provide Bluetooth and 802 11 IP VHDL and C as well as design services Our customers are manufacturers looking for a solution to integrate Bluetooth or WiFi solutions within their own product Generally speaking our product is integrated on a larger chip such as a mobile phone or a PDA The project The 802 11 a b g stack has been developed using RTDS in Sophia Antipolis The stack includes radio modem and software parts The project started in 2001 and involved a team of 10 people for the software part OE EEG N s eF E VRE NDIS interface MAC Bridge anan g Management Entit g Packet e a RAM Remote Station MLME Management MAC 4 ar Teost interface l mi Enc Z Internal O Buffers O a e Ea Hardware Ca Software N O 7 A q za oe ew j M J w d EMN Pp t i gt ma real time evelopment tools The needs Following a previous experience the software team was convinced to use a graphical modelling tool for the proto col stack We started looking for a tool tha2. nother time in the code PragmaDev We have very good relationships with PragmaDev that acted like a partner We had a lot of requests at the start Success story of the project to be able to optimize and integrate the generate code with our kernel PragmaDev has been very reactive and careful regarding our needs and prob lems leading the tool to perfectly match our needs in the end Future work There is no doubt RTDS will be used to develop other products We strongly recommend RTDS except to our direct competitors aughs Seriously it saves time A lot of developers are suspicious over graphical program ming and code generation It is true it costs some time to get started with the tool but afterwards it saves time every day on test and simulation once you get to trust the generated code D PRAGMADEV real time development tools
3. t could e generate legible C code help to maintain it through out the project could be integrated with our existing home made scheduler The solution RTDS was selected because it answered all our require ments e write finite state machines based on graphi cal SDL standard e generate C code that could be integrated with our kernel e fora reasonable price The Process RTDS is used to generate C code and Is integrated as is in our product Other developers that might not use RTDS see the generated C code as some hand written code That allows us to keep using our internal utilities such as makefiles and to keep the flexibility of hand writ ten C code Design is very simple because the tool is based on a graphical language and it pays off when coming back to the design 1 or 2 years later to have a very legible code easy to follow when debugging That reduces the amount of problems compared with hand written C code When designing it has the flexibility of C in a well defined structure for the state machines based on SDL standard Time between development and target testing is reduced because of the code generation Documentation RTDS allows to export the diagrams and to integrate them within the documentation SDL graphical state machines are self documented so time needed for docu mentation is substantially reduced because state machines do not have to be explained twice once in the documentation and a
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